oil FORD CAPRI 1974 Workshop Manual

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Chapter 8 Rear axle 135
Fig 8 .8 Drilling the beMing rf!t<lining rino prior to splitl;l\g with ,1 eol ( 1 chisel (Sec 5)
6 ju sen the ilxlesh.1h "nd CIl!jol\JC the spl"u,d end of Ilu) ~h;,ft Wit I! the ulHcrcnliJI side gC;II, TilP tile shnft wllh <l mall,,( lIIl(,lltl(lI)C<lrill\j is
fully entered III the c .. sing. 7 Align the backplilW ,md be,1"'}!) rC1<lUHH holes with the C.1Sll1g holes. insert the bolts ilnd li\Jhwll them evenly 10 the spccllicd torque. S Relit the b'<Jke drum t1nd fCil' wheel <lnd lower the CM to the
ground. 9 Check the 'Cilt axle 0,1 level and lOp up II necess ary,
5 AxlcshiJft homing -renewal
Noto: A SfJL'CI.1f 1001 IS "Hlliller! /0 n&#39;III<!V~&#39; lilt' 1>1:''''''[1 (,0111 lilt' axles/mIl (s,:c Fly 89) 1 Remove the ;,xlushalt as ,h:sG"hcd 1(' St;CIl0n 1 2 Usin\J all 8 mill (0.31 In) dldl, 1Il;,kc a hole III the he,Hlnt! ,etauun\1 119 . t<lkllllJ CillO not to p,,"eto;Ito Into tlH~ .1xlesh"l!. 3 SupPOI1 the 1m\) 0" il v,ce thell spl>t 11 ;1{;II)SS tho hole with a sholp pllJ (;h,sel. RUlllove tlH~ ""9 hom the shafl ·1 PIC'SS th e l>earinIJ oH the shall lJSIIl\) " sUlt&#34;hl,~ jllJllcr or press. The specil1l Ford tool is shown '" FlU 89. 5 Remove lhe I>e,'''''o ,eiJll1e,
G Cleiln the l1xlcshnf1. be,non\) ,,,t;WlC' ,Hld "xle C.,1511l\) 7 Locl1le the loe1ll1ll9 HIWlIlel 011 the l1xleshl1lt. followed uy tho new uoa,ing wIth the 001 sel1l [l1CIll\) l1WilY ['om the l1~leshaft Hallge. 8 Slide on the new hea'lIl\) rcta"lIn\) '1119 and pr ess J fully 11\l111l1st tile hearing inner IWck. uSIng a slJItJIJle puller or J ICWlth oftuue. 9 Re fIt Ihe l1xleshalt wllh refe'ence to S ectIon <1
6 Axle reM cover relllov,,1 ilnd refitting
Chock the hont wheels then lilck up the re,l( o f the Cl1r il'l(l SOPPOI1 on axle stands.
2 Cl em1 the reM cover .Jnd surroundIng .Jre" (photo) 3 Remove the hllmlbr"ke relay le ver lind seco nd.Jry cable. or
transverse ,od (as ;;Jpplicilblc) with reletCnce to Ch"pter 9. <1 Place a suitable container helle~th the reM "x Ie to c~tch the oil as the rear cover is removed.
5 Undo and remove t he ten IJOlt s and sprinU washers lhilt securo the reill cover to the llIl,l l drive housillg LIlt aWilY th e re"r cover and its
\Jasko!. ~ Before refitting the ,oar cover Illilke sure thm the mating fJces ilre free of th() old Uaskct or 10nlting compound.
7 FIt a new uasket Jnd then the lea, cover and secure wIth the ten bolts and spring washers. The cover bolts protrude IntO the fillal drive hOUSor1U so it is important that a SUlwble oll·resist.Jr1t scaling
... __ ro*
Fig. 8.9 Usill(J the special Ford tool to removc the axlesllilfl henring (Sec 5)
r;olllpoulid IS SlIll:ilr() d onto lioe Ihro,'ds of each boll bef ore it IS [,twd. 8 TIUhwll tllr: cover secu,,"!.! holls 10 lhe spec,[,ed torque Wfl:IICh
se ttln\)
9 ReCOlillect
Iht! h,lndbr,l~e components with re ference to ChJp ter 9. 10 R efil l ti,e 1e;1I ,ule with the correct 9rJde 01 oil then lower the C,lr to
the UIOUIl(i
G
2 Axle reM cover
7
Pinion oil seal -re"cw,,1
This ope r,ltion may be performed WIth the rear axle in position or on
the benc h
2 Undo ~nd remove the two holts. sprinU Jlld plain washers that secure lhe centre bearing support to the under51(fe of the body (reler to
Chapter 7) 3 With a sc"ber 0' fde. Ill<lrk a 1000e across the propeller shalt alld rear ~xle drive fI~nu()s so thatlhcy Illay be ,cll ed \()gelloer ill thell o&#34;gin~1
positions <1 UndO ~nd remove the four bolts Jnd sprinu washers secu"n9 the propeller shalt and rear a~le dlivOllg flanges and carefully lower the
propeller sha h to ttt() flool I I
J m
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Chapter 8 Rear axle 136 )
5 C~rellJlly cle~n Ihe Ir Oll 1 01 the Im,ll d"ve housinU ~s there will Ilroll<lhly be a considerilble <!IllOUni 01 drll and orl rl Ihe se<ll has heen leilkillg lo r a willie (phO IO). 6 Remove Ihe wheels ,lilt! b.ake drums Ihen U Sing ellhe. <I sp"ng halance and a lenUth of co.d w'illlpcd .ound lho drove pUlion. 01 a
10lque w.ench. check and . ecor d the lurnrng IOrque of the pillion. On eally models lilted wllh ~ tl~ed longlh spacer (see SectIon 1) lI11S procedure is nOt neceSS<lry . HowevC/. unless the ',nill drive hilS beell conlplelely dismanlled prevIously. there is no WJy 01 delerminlng which spacer is !rued. 7 USIng a suilahle long·hilndled tool or large w.ench. g"p Ihe re", ,"xlf) p,nIOn flange and wllh il socket undo and . emove Ihe pillion lIan\Jo ,elainmg sell·lockmg nul. ThIS nUll11uSI be dIscarded ilnd il new Ollr. oblalned .e<ldy for rea ssembl y. 8 PI,lee il conWlIler undcr tho ir ani at tho lon<ll drove hOUSlllg to ciltch ""Y all Ih<ll rn<ly como out. then uSIng a unlvorSal puller and sUlt"llle thrusl p"d putt o ft tho 10 M <lxle pillion lIanUC from the alive pInion 9 USing a screwdrivcr 01 slllJl1 chlsol C<lrel\,lIy renlove the old all sl!,,1 It Will plOb"bly be necess<lry 10 p<llti;;llly destroy rt Note t he COIII~&#39;:1 way round is wrth the hp I;;ICnln ulw<lrds to Belo.o Iruill!1 a ne w so;;ll apply son'e !)re"s o 10 Ihe lillIe. 1.1I:e )I\\ICCII the two h,)S 01 the so,,1 11 AplllY;1 hule IOlnlon\! compo"nd 1 0 Ih,;! outer I,lce 01 tlie 50,,1 • USnlg a tuhuh .. drov o 01 :,ulwhle <I.;;III1<;tr:r. c;ucluliV dnvc the all
.,1 "\10 Ihe l ,n ,11 dllv!! hOllslnu unto! Ihl~h w'lh Ihe cas",o 13 Ilcfo1 Iho 1(';;1' "xlo p""nl1 fI.1IlUc ilnd on,:o "!I'"n hold sqll;,,,:ly wllh til" luol 0' wrench. 1~ SClew on " ncw s&#34;II·I()c~&#34;lll I1l1t IJIlIII Illl: (,ndllo,,1 ,s III~I dlll"n.llcd . II"", l'Uh h,n Iho nUL .1 1,;,,:11011 ill;r I"'h' whll" du":k"'!lII,,, prmO" lumlnu lor<ll'" wllh Ihe SI""'!I IJolrolllCU or 10r'l"0 wH;nd, COlltinuc tluhlen,"u untIl tho to '{ lue Cllu;rrs IIr<lt recnHle<l III l'a"'\I'''llh 6 1)lus <I furthel 02 1 0 04 Nm (015 to 030 Ihl It) to .1110w lo r tho ,l(ldruonallr,ct,on 01 tire new all se,,1. Do nOI trHhten the IIl1t lurtl"". olherwlse. rl a collapsible SllolCOf .s Illled. II Will he over·cornprr:sse<l and the assembl~ Will Ihell h,lVe 10 be drsnwntled to hi ;, new ~p;rcu&#39; Howover. il Ihe minimum speClfred torq uo wrench scWng lor th e pInion nut h"s not been re"ched. the sp"cer I'lle d IS p.olJi"lbly 01 Ihe
fixed ICllnth type "nd I he nul should be tIghtened lurthor WhIle domu Ih,s cheC k Ih"l Ihe pimon lurnrnn lorque doos not mcre;;lse. 15 flelll the h",ke <I"ml mId whee ls I G fl" co.mec i Ihe IlrOIl()lIe' ~h;llt ;rhlinmu thl,! p • ..,vlousty rllade fII;'lks 1)11 Ihe lIan!lf:S. '''III rc!lttlrll holts wuh new Splillg w.1"hels TIUhll!ll tel lire spec"'ed ta.que w.ench ~C1llll0 1 7 fle llt lir e r.:ellile I'c;un'!] ~&#34;I)P(Ht ,.ecllllI'(J l,olt5, ~I&#34;&#34;&#39;!J ;uHI pl.1111 w;r~lrerS ;;Inti t'lllrll'lI. 1 B FIIl.1l1y check IllI! (HI IlIvr:1 "' th" "';11 ,1>1" ,,"d l O p up II 1\&#34;,:eS~lIly
P ReM axle -o verh;;lul
Note: Mosl ymilycs wtlf Ilft'h" 10 If.'IWW Iflt' comfllelC IC,ll ,Jxfc ,15 .1 111111 d II IS WOII! ,.II/IC' I/Ioll! 10 rf,SllliI",fc Ille UII/I 10 lel/t·w '''IV r/;/11I.Jycd 01 WOIII poll Is ro do tlw ,ob correclly Icquires Ifle usc 01 spccial <111(1 cxpellsive loofs willch tin' "'",u/lly of y"WY"'S do 1/01 h,lVl' The P"n1<UY oh,eC I o f Ilrose speCIal lools is 10 e""hle Ille mesh 0 1 Iho crownwhcelto Ihe pIllIon 10 be very accur,1lely SCI "nd thus cnsuro that n o,se is kcpl 1 0 <I mm"num II illly lI,c ,e,lse In nOIse cmmot he 10loJHI\ed (p,ovlded Ih<ll the ,e,l, "de 'S nO t already na,sy due 10 "
, le lccl,v e Pol.l ) then IllS besllo Ilu.ch"se "II e~ch;lnHe bUIlt UJl le;;l. ilxl/! 01" Uoad secon (lh,lnd Uillt 1 Remove the rO;;lr "xle I,orn the ,:,1r (S(.'(;t,on 3) illld tha,oughly cleiln
,' . 2 Remove the a xlesh;;lhs (Sec lIon 4) "nd the;lxle ,e". covel (Secllon 6) . If rleceSS;;Jry remove lire !H" ke !liIckpl;,ws 3 WOlk,n!) inside IIlI! axle casUlU . undo .lnd .emove Ihe four bolts th" t hold Ihe IWO U'Shill>cd dlllerentl,ll be"rmg CilPS III the Cilsing. 4 W,lh a sc.iber. m<llk Ihe .e lilhve paSltlons ollhe Iwo be",,"U caps so Ih;uthey C,lll bo .elllled III therr o"g,nal poSItIons. LIlt away the twO end caps. the'e may ;rl .e"dy ho mallng numbe,s shown In FIg. 8 .1 1 . 5 OIJlaln Iwo,) JlIC'- OS 01 50 mm (2 in) squ",e woo d al le<lst 300 mill (12 in) long and. wrth a sharp knlle. !<Ipor the ends "iang J lenglh 01 150 mm (6 in) 6 Place Ihe tapered ends 01 the ..... ood..,o lr:vc lS rll the two cut'i1ways
i h a dlffl!renliiJl casrny (Illd. uS"'IJ the lea, cove. 1;;Jr.:e o f thl! Irnal drrvo asing as" lu lc ,um. CDielully leve , Ihe (Mle.entlal asS(!mbly I.om the Ilna l d"ve housrng.
15 Froni I'll Im<ll dflvo housing showIIlg pinIon n"nge ilnd nul
7 1I'lls IIfJcess,lIY la ",move th e Iwo (hffelenlral casc l1'-'alll'gs Ihese
",.IY I,,, ",move(1 Ih:xl uSlnU " ulllvers,,1 two·leuged puliCI and sui!<lhle
111111'.1 1,.ld C"rfully uase e;lch bca'"'IJ Irom liS local ron . necovor Ihe ~IIOIII p.IO:k s hom hehmll e"ch be"rrnu nOlmU from whIch SId e Ihey (.,rlOr'! 8 thou!] a sCflhcr. m;;lrk Iho relative positions of Ihe crawnwhee l ilnd ,hU",,"rtl.,llrousinu so that the oownwhcelmay be f,tte d on rts origin al p&#34;~H&#39;OII. unless ,t .s to be lenewed. 9 Undo ,11", r enlo ve the eruht holtS thai secure Ihe crownwheello the ,hl,,,""'11:11 hOllS"'II. U S1nll a solt·faced h"n""cl. I,ll! 0\11 Iho cllJwllwhuci Irom liS locillion on Ih e d,ffe,enl,,,1 housin!) I 0 lJ~III\1 ;r sU I\(Ih l{) (i"unete. parallel pIn pmch. lap 0\11 Ihe pin Ihal Iud , ... Ilu, rI,'lcrelll,;,1 Illnial1 gea. Shilll 10 the dlftmrmll.11 housrnlJ.
NOLI! : 1 hu h"le 11110 willch thc peu Irts IS shghlly "'I>c.ed. lind the I>pl''''.'I'! "",1 may he IrIJhLly peelH)d over ;'Iml should he r.:!e;rned with a ·.u,I.II,I" ,".11111;1". ,tr,ll 11 th'''!1 a ... "It IIlI;t.11 dllfl. "'i> out Ihe drllelenli"l p"uon Ue", slr"h. 1.011 .Iw.ly tlr" d,lh;u!Oltl;r1 pinian ue,us. sido {leMS "lid IhruSI was hers; IA"'!l':,"" 10 ell::ure Ih"t the th,usl washe.s ",e lell wllh Ihe ir relative
liP,"" 12 1&#39;&#34;,1&#34;~&#34;If)f .. ,1 Il1te.s (It Ihe <le<lle'5 usc a 51)OClal 1001 la r hlJldln(lthe pillion ,llIvl: lI;rllue StilIIOllil'Y wlulsl Ihe nul OIl Ihe cenl.e 01 rhe n"nge IS \l1I ... ".;w"d SI nce II IS ve,y \Oght ,I Wlllle(IUOfe sOllie lor ce 10 ullda il. ll,,! .IV\l,.IHe oWlle, w,1I not n O''''iJlIv hilV C the use 01 Ihls ~p(.&#39;C,.111001 so.,,~ .1" "11,,,11;lllve method. clamp the pnllon lIanU e in;r vic e "lid then unoi"lir" "ul Any (1'''''"\le cJused 10 I he edge of Ihe flail!] " hy the vice ~llIluld I,e calelully I lled smOOlh This nut must 1101 he u s1!1I .1\).111' SO II l1"w """ WIll he le' 11JUed durinU ,eilssem!)ly 1 J lJ.."'!I ,1 ullive rs;tl Iwa·lenued pullel "lid suilable th.uS I polll drllw (1)0) jllI"')I) dllve lIiuIue from Ihe en d 01 the pInion shMI 14 11", pmlon shalt m"y now be Icmoved from the I,nill (h ,ve housrng. C,'lI"lully "'SIICCI lire la'ge w per loller beirring behInd Ihe pUlIon gear .111(1 " ,I :.hows s'Ul1s o f weill or 1);lIing an tho roliers Of cilge the lm:ulIl\1 must Il() renewed. 1 5 U~&#34;ll1 " lllllversaltwo·leVged pulle. ""d soitable th.uS I pad. dr~w till! !>,)<III"\) 110m Iho 1)1Il10n shah 1 G Tllu slI1;;1l1e. taper rolle. heolllnu and oil seil l may next be ,emoved IlUm till! 1111011 (IIIVO housing. pillion dlivo flanVe end. 1.0 do Ihis uso a solt l\lr:wl drift wllh a I<lpered end 01 $ui l<lble d'ilmetCI lube <Ind. wo,kl"!) OIlsI(le Ihe housing. lilP Ihe bC,l'"IU circumfe,ence OulwardS so rel e;;lsII' U fllst the 0,1 se al and then Iho OOallnu . 17 AU,,"1 u srn g thO solt metal drrft and wo.kmU ,n Slde Ihe housing. d,,1t olllll1e I>carrn!) CUllS. These mUSI nOl be used wllh new beallngs. 18Th" Ilnal UIIV(! assembly rs now drSl1lilllllod and should ho washed ,,,,,I d,u,d wrth <I cleJn tinl· I,ee rag leildy for inspoctlon Check all be;;l,rrilis lor silIns at WColl or piwrrg "nd II ovidenl a new ~I&#39;I 01 h Catings ~h{)uld he ohlmned 19 Ex;r"",,e the lCelh 01 the crownwheel and prn,on or J/'Ulllg. score marks. ch ll >PinU and uene'ill weal. If a c.ownwheel ami pinIon is .equllt.-d. a mated c.ownwheel and p inion muSI be II1I..,d and undor no
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4 5 6
2 3
14
1 3 @~~-@
9 10
Fig . 8.1 0 ElIl>loded view o f the reM C1Kle {Sec 8)
I Axle housing 2 Diffcrcnlilll case (lJper lolle/ belJriJlg 3 DiffcIClltiDl r;ase Sillill 4 Crowflwhccl 5 GoskCI 6 COVCI 1 Drive (Jillion flange
8 Od seal 9 Drive pinion Ii/per follt·, bemiflg 10 Drive 11111;0'1 SIJaCCf _fixcd Icoglll 01 CQfl.1psllJlc II VI.IIIl Vilfve 12 O,ive {limon
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'¥' 16
.~
\\~
CIt I
~ I
~J
13 PmiOIl yea! 5".111 14 DlflClenliM C(lSf! 15 Sil/C yellr 16 O,flCfCIJ/ii!l pillion 17 Rctllininy filly 18 Axfcsh,1!1
137
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. )
r'9' 8.11 Differential ClOsing and bCiHillU C<lP identificatio n '''nrks (Sec 8)
Fig. 8 .1 3 Removing tholockinu pin IrOtlllh c pinion goar shaft (Sec 8)
•
' • .'.....
• • I , , ,
I , , '<' • . ,
~( I
' ...... ,
~i9. 8.1 5 Checking tho d iff erential sid e gear ontilioal (Sec 8)
Fig. 8.12 RClll ovin!J the differential assemhlv (Sec 8)
'.
}
fig . 8 .1 4 Oiffercntiill cOIllI)oncnlS (Sec 8)
Fig. 8.1 6 Chocking the crownwheel and pinion backlash (Sec 8)
1
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Chapter 8 Rear axle 139
ci,cumS«"Ulces mny only one pmt of the two be renewed. fnspect the dllfe,enti,ll pinions nnd side gems for signs of pitting. score mMks. Chipping nnd general wem. Obtain new gears as necessa,y . Inspect the th,ust washers lor signs of weM or deep sco,ing. Obwin new thrust wnshe,s as necessary. Once the pinion o il senl has been disturbed it must be discMded and a new one obtained. 20 When new pnrts have been obwined ns required. reassembly cnn begin. First lit the thrust washers to the side gems and place them in position in the differential housing. The ground side of the thrust washers IllUSt lace the side gC.Jrs. 21 Place tile thrust wilshers behind the dillelentini pinion genrs i1nd mesh these twO Oems with the Side gears through the tWI) ilpertores in the lilllerentlill housing. Milke sure they ilre diametlicilily opposite 10 each other. RO«l!e the clillerent'i11 pinion gears through 90' so brinUlI1\j them into line with the pinion genr shnlt bore 111 the housinlt 22 Insert the pinion genr shnft with the lock In!) p'n hole III line with the pill hole. 23 Usinu leeler 1),IU!Jcs. measure the en{lll(",t 01 ench s,de Be,,,. II the speclficd h\Jure IS excecrt"d. IU!W tl&#34;u~t washlllS mu"t he olJt,uned
-omnlllie the a~~el)lhly ,lg,llll ,trld ht new thll,st wa:,lu'<IS . Lock the P""O" near shalt U~I&#34;\I the pill whn:h should hc wpped hilly h01)1I, UStrlO n SlIlIah l" d,a",,:ter parallel pill pUIH.:h. Peen ()V,,' thc ()I the p", hole to stop the pill WOlklll!J liS wily out t." The tlowllwhcui m;,y next I,,, Idllted F,,~t heat 11 101 nppro~I&#39; ","lllly 10 nHIHltc~ III 1I0111IIIJ W,lter Wipe the ,,,nl"IIJ l aces 01 the c,ownwhuui ,Ind dllferuntlal houslI'U ;,nd. II OliOlnal p,lItS ,lie l,utnU used. plate the Clownwlll!cl tnto p(l~ltton With the prev,oll~ly m,llie marks nhOllud Relit the elO1ot IHlllS th;11 sucule the ,;r()wllwlwel ,trld tighten Ihese III a I"og'esslve and dla\lunill rlt"nner to the spe.:,fled torquc. 26 PI<lce the Shlill packs b<ltk III thell Oll!)lnal foiled pOSition on the differential housing be<lrlllU IOC<lllon USllllJ .1 p,cce of sUlla!Jle diameter tube ve,y c,1refully ftt tim d ifferential housln!J bearlllgs with the smaller dlnmeter 01 the taper outw,Hds The hearing t,lge must nut in nny wny be dilrllnged. 27 PI,1ce the shims hehllld the hcnd of the pinion geM nn[1. using ,I
suilahle dinmetci tul!c . cmclully lit the larg"r ti!per rollI)' benllll\) onto Ihe pillion shafl. The lar\ler dlilllleter 01 the be,lllllU !\lust be nex110 the pInion head
28 Using soitable diameter tubes. fit the two Wper roller bearing cones into the finnl dlive housing. making sure that they ale litted the correct way round. 29 Slide the shim and spncer onlO the pinion shalt and insert inlo t he final drive housing. 30 Relit the second and smaller diameter wper loller bea,ino onto the end of the pinion shaft lind 101i0w Ihis Wilh a new oil seal. Sefore Ihe senl is nctually fitted. apply some grense to the inner Ince between the two lips of the seal. 31 Apply n little jOinting compoond to the outer Ince of the seD I. 32 Using n tuhulilr dllft 01 suitable dinmeter, carefully drive the oil seal into the fillal (hive housinlJ. Make quite sore thnt it is lilted squarely and flush with the housinU. 33 Refn the drive pinion IInnge nnd hold securely in n bench vice. It II fixed lenIJth spncCl is Itlted. fit ilnd tighten the pinion nut 10 the spec ,lied lorque. If a collapsihle spnce r is f,tte d. follow the prOCedlHe
g iven in Section 7 paragraph 14. setting the pinion turning to'que to hetween 25 nnd 2.7 Nnt (1.810 2 0 Ihf It) which includes 0.2 to 0.<1 Nm (0.15 10 0.30 Ibl It) lor the ndriitional friction of the new oil senl II new hea,inns h~ve heen filted. logether With n li~e(l len(Jth SP,lCer. check thm the tOrlllllg torque is bel ween the limits just stmed. If not. a longer or shorter spilcer must he I,tted until the setting IS correct 34 Fit the healing cones to the cf,fierenllal houslIlg heallll(Js and carefully ease the housing Into posilion in the finill drive housmg 35 Relit the be,IIII'!J CilpS in thell originnl pOSitions. Srnc,ll n httle JOlntmg compound on the threilcfs 01 each cnp secuIII'O bolt nnd fit 11110 position. When ,111 low halts have bcen rein ted tiUhten these up in a (h"IJonal and progresSive milnne, to the speCi fied torque. 36 I I pOSSIble. 1Il00nt n dlnl in(licntor onu(Je so thnt the probe IS resting on one of the teeth of the crownwheel and determine the backlash hetween the clownwheel and pillion. The bileklash may be vMicd by elecreasll'\) the thickness of the shims bellind one beilling nnd incrensing the thickness of shirns behind the othcr. thus moving the crownwheel ;nlO or out ofmcsh as requi,ed. The tOt.llthlckness 01 the shims must not be chnn\)ed. 37 The hesl check the do·it·yourself owner cnn make to aSCerta", the correct meshinu of the crownwheel ilnd pinion is to smear ,I htt le engineer's blue onto the crownwheel and pinion iJnd then lot"te the pinion. The con1<lct lIlil,k should nppenr rl\fht ill the Iluddle oJ th..,
COlleCI 100110 CO"t.1ct
_
t Heavy conWCl 0" huel. at 100lh !,leu Move p'",on lowa,ds crownwhcd u:.!:.crt:1 3nd c,ownwhuel towards p,n,on
.~\;!~&#34; •. ,;.';,;,"",.,=,"--
l ' Fig. 8.17 CrownwheeJ and pinion setting chart (Sec 8)
, ,
, ,
"
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Chapter 8 Rear axle 141
lings apm! and compress the clutch plntes. The nction is varinble. depending on the power npplied. so tlMt under full power the dIfferential will lock completely nlld full torque will be appl;ed to both
11 Fa ult diagnosis -rear axlo
Symptom
NOIse
"Clonk· Oil nccelera tlon nnd deceh:ontlun
,... Ilenka\Je
)
renr wheels . Under coasting or overrun conditions the differential will operate as a normal stnndard unit. The unit incorpora tes four different;nl pinions <IS <lgninst the two pinions lilled to standard units.
Roason(s)
Worn axleshaft bearing Insufficient luhricant
Worn dlfferentinl houSIng bearings Worn crown wheel and pinion Incorrect crown wheel nnd pinion mush
Worn 1I. leshalt splrnes Excessive crownwheel nluJ pinIon bncklnsh
Pm ion oil senl Icnkrng ReM cove r gasket leaklllg 011 seal on <lxlesh<lfl bearing leakIng
, , ,
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) Chapter 9 Braking syste m 143
2
Fig. 9.1 DU<lI linc hydn.ulic brnke circuit (Sec 1)
1 2 Fron! br,)k(1 disc ,1nil c<1IijJ~&#39;f M,lS/IH cylinder and I/uid resefvoir 3 V,KIIUIn sClva unit 5 ReM drum brake 4 Prcss1ltc (h!fetcH/i.)1 wi/filing swi/cl!
2 ROlltine maintenance
Al III<, u,h!lvals speClficed in the Routine M<JinlellilllCC sectIo n in the frOllt of tlw 11,;)1111<11 Colny oul the lollowlIl(J procedures
Check hrilke fluid Ivvel 1 CI",<;k 110.11 Ilw hrake thud )"vcl in the reselvoir is .1, or nc." lhe 1Il,,~i&#34;&#39;lI&#39;&#34; ',,,10k The ,c~;cr\loi( is localed on the master cylinder on the nghl-hillld sule 01 the IJulkhead III the cl1uine cOIllpnnlllCII!. SliUht Va-"I,ulls of I"vel Will occur ilccordlfl!) to the wear ollhe II/<l ke linings. If lI,v(!1 (hops wW ;1,ds the ""Ilimlllll mn,k the cornplclC hydraulic system should he Chec ked lor le<lks,
2 ·'h tim cm rnlsed. c,lIe1l1lly inspect illl the hydraulic pipes. hoses ;lnt. .. ,lions lor chJlmg. c'ilcks. Illilks ilnd corrosion.
2.4 ;-.-
uejJ.es~ the rubue' membrJne to check the fluid low level
Warning IrUht
3 To top up the fluid unscrew the fill er cap whrle holding the c,lhle connector sWtionar y. and add brake lIuid ns necessJr y. R efit the cnp on completion. 4 When checking the brnk e fluid level it is n good practice to also check the low level wnrning light With the hnndbwke rele<lslId and the iunition switched on. depress the rubber membr<lrlC on the rIl511'VOII hi ler C<ljJ (phOto) If the wilrning light filils to came on check the bulb ill1d <lssocimed circuit.
Check disc p<1d and rear bwke shoe linings 5 Jnck up the Iront nnd rem of the Cilr nnd support all il xle stands,
Re leuse the hilndb'<lke. 6 Although i t is pOSSible to check the Iront disc pari 1illillUS with <l mirror and torch. it is recommended thnt the front wheels <lre Illst
,emoved. 7 Mensufe the thickness 0 1 lining on e<lch disc p<ld <lIlt! If ,lilY IS less thnn 3 .0 mm (0,1 18 in) renew the complete set of front [Jose pnds 8 II the ren, b'nke h<lckplntes incorporn\(! inspection hOles. remove the rubher plugs nnd check thnt the thickness of the hmn\js IS not less
thnn 1 .5 mm (0.059 in)
Fig. 9.2 Handbr a ke lin k ag e lubrication points (arro\Ncd) on early models (Sec 2)
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144 Chapter 9 Braking systom
9 II there Dre no inspec tion holes, remove the wheels and drums In inspect the linings . 10 Where any lining is less Ih,111 the nllnimufll thickness, renew Ihp. complete SCI 01 re,ll b,~ke shoes. 11 Refi ' the drums lind wheels as necessary then lowe. tho em \0 thl) 9lOund.
Ch eck operation of servo lIoil 12 Visually inspCCllhe vaCUUll1 hose IClIding hom the inlet mlllllfolll Of air box 10 the servo unit fOf dc\c,iOf1l1lon and security. 13 Wit h the engine Slopped. dCI).es s the bra ke pedal several ,imes to dissipate t he VOC U\Ull hoUl the sorvo Imit. 14 Depress the b'i1kc 11Cdll1 wilh moderate pressure then Sin' I the
cnU illC . As the V<leuum bwlds up. the l)Cdal should move sh Utl1ly IOw ;uds the floo. indlc;uulg that Ihe $Crvo is p.ovidlllg .esis tilnCfl
L ubrietl!£! /wndbh7ke linkage 15 Jilck up Ihe .eolf of Ihe Colf illid SIIIIPOII on ilxle Slilnds . 16 Oltthe prim,uy eil!>le connOChon to the boltom of Ihe halldh&#39;;,~&#34; level. 17 011 1974/1975 models. u,ease Ihe pflmolfy callie whe,e II p;,sses over Ihe pulley wheel. ,111(1 0,1 Ihe pull ey ilnd lever pivot pO"'IS . 18 On lillCr models grease Ihe 1,i1nw c.se rod SUI)I)Olt hC;lfinU 19 011 the clcv is IIUIS i1I the w", l>olckpl" ,es. 20 lower thc cm !O the gr ound
R/mew fhe /)rilke I/Ilid 21 lJIucd Ihe hyd.; ."loc sySle m as d"scllherl III Seelloll 15 ilUOwnl! II",
Ihe new h ,,,k\) Ih"d to COnlph: lely 1,lIlhe C:"CUtt he"I!1 bled . 22 AI Ihe sanl\) I"ne rcn,uve Ihe 'Ci" ",ake \I'lOn,s alld check tho wlu,,,1
cylonclers 10' leak"IJe.
3 Front disc pl1ds - renewal
Apply t
he handbr<lke then Jack U') Ihe Ioonl of the Cill <lnd supporl on <I~le s tandS.
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2 RemOV(l Ihe hont wheels.
3 It Ihe fhnd level in the maste' cylondel reservoir is high. when the pistons l1re moved into thei, respecI,ve bo,es to accommodate new pi1ds. thO leyel could rise sulticienlly fo, Iho fluid 10 oyerflow. Place ilhsoruent clOlh .1round the reSe,yO". o. syphon a Imlo Ituid oul. so 1)'Cven tUlg Pil"ltwOlk <lilmage UCUlIl caused by the hydraulic lIuid . 4 Usmg iI 1)11" of tong·no~ed pile,s. exl,aCt the two smiltt clips Ihat
hOld the m;"n ,clalfl,ng pins in plilce (photo) 5 RemOYfl Ihe m"in le tainm g pin~ which ,un through Iho c.lliper and the mel,, 1 h.,r. krnn of th o pads and Ihe ShUllS. 6 The flll ;t, o n l),le1S cil n now bo removed from the cahper. If they prnv!! \III1ICIIII to ,emove by Iland . II pair of long·nosed pi ie,s can be lIscd Lill :Iway the shims and tens.on sPflnus (whe,e lilted) (phoIOS). 7 Ca.eh,liy clcall Ihe .ecesses in the cahl>Of in which Ihe h,ction pads :md ShUllS he. and Ihe exposed faces 01 caCh pis ton. rem oving allu3ces 01 d"t 0' rllst 8 Us",u a p,nte 01 wood. e.l,eh,lIy rUlI,1et Ihe pis tons. n 1'1,11;\1 IhH t&#34;,&#39;~e p"d tens,on SI""'U" Oil Ihe hr~ke 1)o1ds i1fl<l shims ililfl locale mlhe t,lhpCf . NOle Ihi11. whe,e ,11)I)hcal)le. the affOWS on the ~hUllS m&#34;~1 I<le.: Ihe lo,w.,rd rOIi1UOII 01 Ihe iron! wheels (photo). 10 ,,,,,Crlthe maon p;,(1 Ictitlll,nU prlls. tIIilklt1IJ ~&#34;,e th,11lhe 1i1nus of the IUII51(1I1 SP"II\j" .lIe under Ihe rCtallllll\ J pins Secure Ihe pillS with Ihe ~&#34;,,,II w,w d,l's 11 R&#39;·IM~<lt (hf! I" ocl,tlu,e on the .emil"' .. ,\! hom bri1ke then ,cl,t the ....heels <llIti lowe, Ihe Cilr 10 Ihc U,ou'HI 12 To co,,,,(;l ly ~eill t hc p'stons. 1l'''''))lhe !,,;.ke pedal suveral tim cs ",,<I j,n:,lIy top "p Ihe hydri1uh c Ih"d level in Ihe m.1ste, cylinde.
&#39;&#39;&#39;~&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#34; ;,S n,~:&#34;sS,l&#39;y
<1 F rollt brake caliper _ rcmoy'll iltld refitting
1 nemove the f,on! disc pads i1S tie sc"lJc(/ in Section 3. 2 1111 'S Itll,,,,d,,(1 10 lit ncw Ci1tiper pistoll s "nd/o, seals. dep,ess the tH.1k'J Iwel,,1 10 hlUlU the pistons i"to COI11i1ct with thO (fisc and <lssist ~&#34;hs<:qllc&#34;l H:fllOV<l1 of the p'stons. ) FII a h{JS(l ciilt1lp 10 the lteK'ble hose ICi1d,llg \0 thc c'l hpcr. If a hose dallip 's not ilYil,li1bto. tighten" p,ece of l)Qlylhelle she"t beneath the
3 .4 A pad .et<llnn1U pin and clo,) (ilffOWt:d) 3 6A Ret1lovinU a d,sc pad 3.6B The two disc pads remOved
.>.6C Disc pad and shim 3.9A T he shim allow must lace tho forwa,d rotation o f Ihe f.ont wheel
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3 .9B Fitting the tenS ion springs
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灲潣慲浡湵慬献捯m

) Chapter 9 Braking system 145
/ll.Iid reservoir tille , cap \0 help roduce any fluid loss. 4 Where a rigi d brake line is connec ted \0 the calipe r, comple tely unscrOw the union nUl . Where Iho flex ible hose is connected directly \0 Ihe caliper. loosen only .he union (lnd unscrew Ihc caliper f.om Ihe
hose later. S Prise back the laus on the locking plale and unscrew Ihe mouming boilS (photo). The cJliper may now be wit hdrawn ove r th o disc and where neCessary unscrew ed from Ihc flex ible hose, 6 Refilling is a revCfsal of fernOv;!I, but lit a new locking plate and
l ighten the mouming bol ts \0 the specified torque. Bend the Inbs \0 Io<:k I he boils. On comple tion bleed the hydwulic system wit h
reference \ 0 Sec tion 15.
5 Front brake caliper -ovorlulU l
1 With the c~liper removed . cle~n away all external dlr1. 2 Where applicable, prise out the dust cover cirClips <Jou wleilse the
dust covers from the external ~onular groove. : lIr"ct the pistons: keeping them idenhlied side lor s.de. If nt .... "ss"ry. use low [lir P"CSSlU(! frOill a foot pump to lorc e the pistons
IrOIl' lho bores. 4 nove tho dust covers Irom the pistons or bores as apphc<Jblo. 5 Prise tho pisto n seillinU rings from tho hores tnkino Cilre not to scratch the bore suri<Jce. 6 It is impOrliln1 liw i tho twO h<Jlves olthe caliper are not separated under any circumstanr:es . If hydr.1ulic lIuid lenks ,l,e evident from tho join!. the ca liper must be ronewed complete. Thoroughly wash all p.1,t5 in methylated spi ri ts. or c lean hydraulic lIuid. DUling reassemhly. new rubbe .. seals must be lilted. These should bo weiliubricilted. wrth clean
hydrau lic Uuid . Inspect the piSlons and bores for signs 01 weilr . score markS. or damage and il evident. new par ts should be obtained !Cady for lilting. or a new ca lipe r obtained. 7 R eassem ble tho components using a reversal of th n disnwn tling procedure. but before inserting the pis tons dip them in clen n hydrnulic fluid to assist entry through the seals. On comple tion press the pistons fully into the bores.
45 Front brake caliper mounting bolts (arrowed)
6 Front brake discs -in spection. re rnovnl and refitting
Apply the hilndlxake then jn ck up the hom of the car and support on :1xle st:1flds. Remove the Iront roadwheels . 2 Rotate the disc by hand and examine il lor deep scoring, grooving or cf1lcks. light scoring is normal, but if excessive the disc must be
renewed.
3 SCrJpe <Jway any loose rus t fro m the oute r edge of the disc, lhen mensu.e the disc thickrless using a micrometer or cnlipe rs. If less lhan the minimum specified thiCkness rhe disc mUSI be renewed.
RUEO '.(RlW
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1-""£0""""" ~Plf&#39;l ~-____ ttIP
BI&#34;&#39;~( &#34;.&#34;,~&#34;&#34; PI~I()&#39;
4IOUf llltlGOOLI tCCKltlG PLATE
R( 1 Altl{R RltlG
BRAKE (VLIHOER PISTO'l
(l001
Fig. 9.3 EKp loded view of the front brake calipe( on fater models (Sec 5)
RING
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procarmanuals.com

Chapter 9 Braking system
4 Note that in order to m,lintOIll even braking both discs should he renewed ill the sal1 1 e lime
5 T o remove il dl~c. first remove the tHlb as described in Chllpter 10 . 6 Prise lip th(J locklllU I"hs. unscrew the fOlll bolts. and remove the disc from Ihe huh.
7 Clcilll the Illllirnu !ilces of the disc and hub then locale the diSC on the huh and allgel the holt holes.
8 InScrt new holt~. tOI){)ther w rth new locking plates. and tiuhten them to the specrfre(1 torque_ loc k b y bending the tabs. 9 Th e huh Illily now he ref Illed with reference to Chapter 10.
7 ReM hrake shoes -rt)rlewal
Check the front wheels th!:n lilck up the rem of the CM lind support on ,1~le stands. Rel(,a5e Ihe handbr,lke lind femove the reM roadwh~~els
2 Unsr",w th" I"ake drum lewinrnu scrow then t.1p off the ,IIurn \Jsing ;I ~&#34;It f.lced milliet (photos) 3 Barsh away all dust I.orll the brilke shoos, backplate ilnd drum, ",killfl can' ""I /0 11111""., II ;I S 1/ is iHjmiaus to "e,11Ih Del&#34;&#34;~~ ,,;och shoe hold-down sprrng (photo) ,lnt! rOt,lte the sprrn!! ",w"nIlH w.r~I&#34;&#34; th,ou!lh 90" , to rhsengage ,t from the pm sel:rr",d 10 Ihe had' pt. 'I" 1.,11 ,"wily 1Ill! w;'shel and spm}!J
Early moth'ls (iippmxilllawly pm Df!c()tllbcf 1974) 5 Eas,) .. ad} shoe loom ,t~ loc;rllol1 slor III the lixed pivot nrrd tllen detach th,-othe! &#39;~nd 01 ea(.11 shoe f,om the wheel cylind'lr, 6 Note whld, W.1Y fOwul and IIltO which holus in the s hoes tlH~ two retracting sP""Hs Ill. 7 lift ,lway t ho two brake shoes "nd retracting springs. 8 TUf(lthe self- ad lust'ng ratchot wheetum,1 it alJuts the shoulder on t he s lot head bolt.
FiO_ 9.4 Renr brake shoo components Oil e,lrly moclnfs (Sec 7 )
I Pili 'm froft! dowII sWIIIII 2 Buc/."liTlt! J B&#39;,l~&#39;l! shot's <1 II,-IIIrflHiiAe opcra/jllY h-v", 5 lIo/d d"wII slNil/ys
Lawf lII oduls
6 fir"",,:, (/",,1 r:lJvlH 7 IId;III1I1'!IIII.llr!S 8 flNr;Il:IIl'!! .,'I,"IIIIS 9 WI",,:II:yllJldl!l
fJ N Ole the local,on of the shoe 1"lpacl,no sprrll!ls nrld thell unllook tlwm \lSUl!l a s(;lewrh,vef or SUil;!tJle plo~&#34;s. Remuv,) th" lorw,lrd shoe Unhuok tho small pelurn spring loom the reill shoe and then rumuve the shoe lenvinlJ the adJus!Cr in pos,tiol} (ph o tos)_ 10 Tu remove tim adjuster unit. del<J~h the hllluH)p,lke cahte or pod <It the clevis (Jlmer side of backpl.1ll)) <lnd withdp,lW the adJl,stef
'nech<lnism (photos)
7.2A Re<lr t,r<lko shoes With (IrUIll removed (eilr ly models) 7.2B Rear brake shoes with drum removed (Iatc! models) 7.4 Brake shoe hold down sprinO
cylinder (later models) 7.98 Brake shoe attachment to anchor ( later models) 7.10 Halldbr~ ke tra nsverse rod connection to opera ting lever on backp!ilte (Jrlowed)
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