light FORD CAPRI 1974 Workshop Manual

General repair procedures
Whenever scrvie,,,U. repair or overhaul work ,$ c;nric<i out Oil the eM or its components, ,t IS nl:c",ss;uy In nUsc."o the lollowtll\j procedures (Iud ulslruct'{JIlS. Ttus w,lI assis t III ca"ylll(j out Ihe opcrJlion eff Iciently ,1nd to " p,()lcsslollal slanlia,d of workmimstup
Joinl mating ftlces ,7l1d gaskets Where 1'1 gasket IS lIsed tmlwl:CIl the ",,,,ill\1 [<lees 01 two components, OnSlIr(l Ih;)t It IS renowed un Icassclllhly. Bnd 111 it dry unless O(IHJlwise Slaled III the rcp;Hr plOGcdw() Milke SlUe that the nmling (<lees nrc cle;m [lnd dry with "II II,lees of uld \Ja~;kCl rClllov ct1 When cleaning 11 tOnH j<lCC. use il 1001 which,s not likely to scorc Or dalllil(lC the l<lcu, [l1ll1 reillove <lny 1>I'''s or nIcks wnh an oilstone or hno Ide.
Make SUfi) lh,,[ tnppcd holes nrc ciedncd WIth il pI pc clcilncr, and kcep thcm flcc 01 101l1llng compound If tillS IS helll\) used unless
speCIfIcally Instructed otherWIse Ensure that "II ollfrtes. (:hannels 0 1 pIpes ,lie Clt'ill ilnd blow thlough Ihelll. p,eleriluly llsing compressed ill(
ai/ seal s
Wheneve, nn od sCill is removed flom its wOlkll1\1 10Ciliion, eIther mdlvidu"lly or "s p"rt of iln assemhly, It should be lencwcd The very finc sc"lIng IIp of the sei'll IS e"slly dama\Jcd and WIll not seal If the surface it COI11<1(:15 IS not completely c lean and free frOlll
SCHl\ches, nicks 0' grooves. If the o'iginal scaling surfi'lce of the COlnponern cannOI he restorCd, Ihe component shoul d he renewed, PrOlect lhe lips of the scal from any surlace which mi'lY damage them in the course of fmlng. Usc wpe or a conical sleeve where POSSIble, LUb ricate the senl lips WIth 011 befole fruing and, on dual lipped se"ls, fill the space be twcen the hps With grease. Unless otherwise stated. all seills must be hlled with then sealing hps toward the lubricilrH to he seillcd Use iI\ubuli'l' <111ft 01 block 01 wood 01 the npploprime sIze to II1sta ll
) I he scal ilnd, lithe sCi,1 housing IS ~houldeleu. drive the seill down to the shoulue,. If the scal hOUSIng is unshouldcred, the seal Should be fItted with its lace flush W ith the hou$lIlg top face,
Screw IhrCiU/s and lasleoings Always cnsurc that a blind t"pped hole is completely free from orl. U
reilSe,
wilte, or other flUId hcfore instatllng the hott a' stud. Fililu'e 10 do tillS could C,luse thc housm\) to c"lck due to the hydrilulic <1ction of the bolt or slud ilS It IS sc,ewed '" When tluhtenlllU ,1 cilswllilled nut to ilCCCpt iI spht pin, tIghten the nut to the speCIfIed torque, whele ilpphcilh le, and then lIghten furthe, to the next split pin hole Ncver slilckenlhe nulla "lrgn a spirt pin hole unless ~t<l1ed III the ,epil" plocedure When checkIng or retlghwnlllg il nut or holt 10 ,1 specified 10'Que setUIlg. slilcken the nul o r bolt iJy a qua'ter of a turn. "nd then retighten to the speclflcd setting
Locknuts, /ockt.1bs and wasliers Any fo1SlC(1Ong which wdl rotate agaillst a cO!llponen! or hO\ lsing in the course of lI\)hlemng shmrld illways hilve a wilsher between it ilnd the relevil"t component 0' hOllSlllg Sprm<J or spirt w.1she,s should illwilyS be rencwcd when they ilre uscd to lock a c'"trcnl con'ponem such n5.1 blg·end beillmg letalll"'g nut 0' bolt. Locktilbs which il'e fohied over to re t;1in a nut or bolt should illwilyS b e renewed. Self -lockIng nU1S c<ln be reused in non-crit'cal il reJS, p roviding reSlstJ l1Ce Ciln be felt when t he lockmg portion passes ove, the bolt or stud th,eild. Spht pillS must always be ,eplaced with new ones 01 the correct size lor the hole.
Special tools Some repal( procedures III this manuill enWil the lise of special 100ls such ilS il p,ess, two or t hree-legged pulle,s, spring compressors etc Wherever pOSSIble, suitJble ,eildrly ilvailable altcrnatlves 10 the manul(lctu,ers special tools a,e descrrbed, and are shown in u sc. III
SOllle Inswnces, where no a lterniltlve IS poss ible. II hilS been necessary 10 resort to the use of a manufilclurer"S tool and thIS has been done for reilsons of safety as well as Ihe eHlcien! completion of the repair
operation. Unless you are highly Skilled ilnd hilve a thorough unde,standlng of the procedure desc(lbed, neve, " tWlllpl to bypass the use of any specl,,1 tool when the procedure descrIbed specllies ils use, Not only IS I here a ve,y great risk of pe,sonal Injury, but expensive dillllage could be causJd 10 Ihe components involved
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Fault diagnosis 21
Starter motor ((/rns cngino slowly Parti ali V disch~rilcd b<ltlcry (rClch"'!le. usc Jump INlds. or push
sian) Ballerv terminals loosc or COli oded Batte.v earlh 10 body delcctrvc Enuine ear th s tr,1p loose Slarle. motor (or solenoid) wiling loose Slaricr mOlr ill1crnlll laull (see Chaple. 12)
Engine ((/"'S normally but 1,1ils ( 0 SIMI Damp or dirlV HT !eads <lnd dlS1"h\l10r CllP (cr<lnk cngine and
check 10 ' sp<l.k) DirlV or inco.rClCtly g;1ppe(1 .1I51"h(lIOf pomls (If nppllc<lblu) No fuel In wnk (chcck 10' dchvclY .11 C;1dJU.etlor) EKceSsive chokc (hOI cn\JlIlc) O. II1su l!,clenl choke (cold CI\\)Il1c) Fouled or incorrCCtly \lapped ~pnlk p1l'\lS ('1I1I10ve. clean .11)(1
regnp) Olher ignilion syslcml",,11 (~ee Chapler II) Olhel luel sySlem 11Ildl (se c Ch"plm J) POOl compression MaJOf mechanic;1 1 l<l,hlle (ell c~lIllsh.11t \I',;1r ICClh sl"ppc<l)
Ellgine lires but will not fUll In su!hcicnl choke (cold flfl!)lIln) Arr le"ks al CilrUurC110. 0' mlill m;1",lolli FuClI sta,vatlon (sec Ch"111C' 3) []"lIast rCSIStor de!ecllvn. or OIlier 'H",II<HI f,lIlll {s.~e CIl;1""" ill
Engine ClltS Ollt ;1nd wilinOI roslinl
fngine culS out suddenly -ignition I,wlt Loose or d'$Conncetcd l T wi.es WCI HT Icads o. d'S I"buiOI C;1P ("lIer tr;1VC'SOll!) w;1'er spl;1sh) Co,1 o . condenser lallulc (cheek 10' SI);lIk) Olhc. ignition laull (see Ch,'plfll 4)
Eflgine mistires belore CUlling oul IlIcll,wlt Fuel I,,"k Cillply Fllel pump dClfecl1vc o. 1,ltcl IIlo .; k(H! (dwck 1m dellvl"V) Fuel tank hllcr vcnl blut;kcd (StII; llon Will II" flV,{Io"'1 Oil lI~h&#34;&#39;~II&#39;H C,11l) C;1llJulCIIor nccdlc v"lvc SIII;klll!J (WIU.'1I1 "ppI1c"hle) C,1lUwellor leiS blocked (ha:l COIII,lIl1ln,Hcll) Othcr lllcl sys!Cm l<lult (sec Ch~,II<!I 3)
DISCHARGED
BATTERY
lSin.MIN
POSITIVE
JUfl11) Slart lead conneClions f o r neg!Hive earth vchicles­connect le;1ds in orde r shown
fllgine euls Ol1t -olhor eimses SCIiOliS ovcrhC~ling Mnior mcch<lnic,,1 !<lilUIC (elJ cmllshMt drive)
Engine ovcrhe<Hs
Igllitioll (llo-clwrgcj wt1fllillg IigM illuminated SI;1ck o. broken d"vchelt felCn$IOIl 0' Icncw (Ch;1ptr,r 21
Ignitioll warning light /lot illuminBted Coollllll loss .Iuc 10 In!emnl 01 CXierr'JI ICJk<lile (sce Ch"PICI 2) TlIClmO~I<ll "clecllve l.ow 011 leve! fj.,lkcs hllldlll'J R;1(1"llor clomJcd cXifllllJlly or IlIICIIl<lIlV EnU"'e W<ltclw~ys cIO!JUC(1 'Un'h{)Il !IInll'!) Incorrcct or <lIIIom"IIC .1<1V;IIICC nl.lllllIlCI,OIIll'!j MIxture 100 we,lk
NOIC: Do 1101 ,11M coM WMCf 10 ,111 oV~-f/&#34;&#39;.I(C(1 ~·lIy&#34;&#39;., Of d,,,",l[Jf1 m,ly I/)SII/I
l.ow cnuinc oil JlfC!ssuro
G,wge reads low or warning lighl Illuminated wilh engillc
rWllling Olllcvcl low or mCOlfeel 0.,,<10 Deit.'Ctivc gllU!jC 01 sendCI 11111 Wife 10 sendCI UIII' C.1I.hC(1 Engonc ove.hC.1l ing O,lllllcr CIO!19c<1 01 byp,1SS v;1lvc delccllvc O,I ,llcssule lehef v'llve dc!ec tlve Oil pick-up strllll,e. ciomled 0,1 pUIllP WOIil or IllOlllllll1\l~ I\,osc Wo,n Ill,l'" 0' h'!J-cn(i hC.1I1I1!)s NOlO: Luw or! 1"t'HlifU III a IImh III&#34;C&#34;f1~&#34; (.'IIYIIIC .J/ 11l;~()VI.&#39;r I.~ 1101 1II.'I:<.'",.","/y,1 (.",lIlSV {o, CIIII{:"/U Suddel! fJf&#39;~SS!lle {U$S ,11 SlIced IS {M "'/!IC SI{Jl!lflca"l (I! ,my cve/l/. .:In',·j. I/le .<I,U/ye or ...... l/lllllyl,yIJ/ S(1/1(h'f /)<.'/VIC cIJfI.h·flllm,y 1/1<.' C/I!l1IJ1!
Crank engine and chock for Sl)ark. Note use of il)sulated tool 10 hold plug load
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Chapter 1 Engine 35
3 Examine the rocker shah ,md ,oc ker il,ms for we~r, II the rod", alill rl tha t conwcts the valve stem IS conSiderably worn. n,new the " ."'"nl I f it is worn shqhlly step-shnped it may be cleaned up wIth rOc e r ". . a fi ne oil stone. . , commencing Jalluary 1984. modolled ,oc ker shah sp"nOs have ~een fi n ed. Where wppet no,se IS evident 011 e~rlier models hl'lw",en e n g ine speeds of 1500 ,111d 2000 'p'll. the later type 01 SP,,,llIS nl.1Y he
I , n ed .
.
5 Od t he parts and reas~r)!llhle them on therr shahs III thO) n"lI,n;.1 or der With both rockel shafts f,tled the 001 holes must face downw.l,ds to th e cylindel heads Th.s po~&#34;tlon IS lIl(hcated by a notch 011 Oil" "nd
lace of th e rocker shaft
13 Tappets and pushrod s - eXill11inalion 1It HI renova tion
I Examine the v<llve 1;11'1"'1'> 101 wr:<lI "nd (lan1.11Ie. r",new II ~I,·,t&#34;&#39;Lt 2 Check the pusluods for ~&#34;I&#34;S 01 hendiPl\l or we"l Co",,<;t '" 'o:11O".\'
JS ncceSSary .
14 Can,shaft ilnd ciln ls h Hft b earings -cxmninatio n "" d
rCll ovntion
II there is excessIve WO),11 III lhe camsh;lft thp.y will h,lVl! t" lJ" lunc wed. As the 1'1lI1'11 ul '''"1'11 Iwarrll\lS w!(lI"es speel,lI [(",I, thl~ ~houtd be left 10 your 10c,, 1 FOI(! dealer. 2 The camshaft n1;IY show SI\II1S of wear Of) tlH! I)(:''''''!I 1""""'1s 00 C;In lobes. The main d(:elsloll to lake IS what de!)",,, "I I'll"," n ec e ssitaleS renewIng the camshaft. which IS e xpensIve S<:'H"'!IOI da&#34;,~ge to t he bearIng 10",()"ls cannO I he ren'OVNI hy ''''I,,,,,I'''!I. runew,)1 0 1 the camshnft IS the only so lutioll J The CJm lobes mny show SlUns of ridgIng or piltmg on Ill" I"U" poin ts . II ridging IS sllghl then It may be pOSSIble 10 rel\\OVC It woth "
lonc oil stone or emery clOlh. The cnm lobes. however. ;"" ~urf;It:e hau Jencd nnd once the h<l,d skill 's penetr;lled wem Will he v,,,y '''pld
.'
,

15 Cylinde r heads -dismantling . renova tion and rCils sembly
Clenn the d "t nnd oil off the cylinder he<lds. Renlove lhe carbon deposits Irom tlie combusl10n C I\11'11be,s <lnd vnlve heads with il scraper 01 ,olary wire brush.
2 Remove lilt! valves by comp,ess>llg the valve springs WIth a suiwble v"lve spPlng compressor and loft,ng out the col lets, Relense the v<1lve sprin\j compreSSOI nnd remove the v<1lve sp"ng retainer. spril~,) ami valve (photos). M;llk each valve so that Ihey can be fltled u, the S<1me 10CfltIOn 3 WIth th" v,llves removed. clenn out thC Ci1,lJon Ir{)m the POltS l EXnlllUH! the hearts of the valves nn<lthe v"lve SC,lts for pIt lIng and l1urn ll1\1. If thE' p'tton\l on vall'c and sent IS 511\:)111 II CJll be removed by Uflnclong the v&#34;lve~ and sents togelh(" WIth coalse, ana !hen fIne. valve ~1&#34;ndon!1 P&#34;~h~ Ilihe jll!1lnu IS deep l1lo vnlves will h~ve to be leground on" v;,lv" O""dlnUl\1iJchinc Jnd t h(: S(:ilts WIll have to be reCli t WIll' iJ v;Ilve So,It CUlh" rloth these op(:ratlons .lre n loh 10' your 10(";,11 Ford
d ..,;II(:, or nlUll>l fJngmeerini) speCIalist. 5 Check IhE' valves guides lor wear hy "'s(:'II"U the valve on tho (J",de. the valve stem shovkl move eJslly '11 tho gUide withoul SIde
pl<ly R()newa l 01 wOln gui(lcs requires speelnllOols <111(1 should be left
t o yOl H 101:,,1 Fo, d de"ler G When !J"ndlnU sllgh11y pIned vnlvcs ,'11d '· .llve se"ts w ,th ca,ho,uIHI"ll) pas1e pro1:eed as fOllows Apply ,I Illtio coalse I) "ndon>! p;,S1C !O tlo" valve seal <Ind &#34;S&#34;I~1 ,1 SuctIon lype valve fJ"lHlrn\j tool. UIIl1d th" v"lv" ,nto I1S scat w'th n scnll-IOWry 1\10&#34;&#39;:~1ll0&#39;11. IIftu'\I the vil lve fro"" Hm o to li"lO. A light sp rmi) under the valvc head WIl l ass,s l '" 11"5 ope,,,tl"" When a dull mati even surface firnsh ,'jlpeJ,s on bOlh the v"lve ,,,,, I the v;llve seat. clean off the con,se paste .lnd repe"t Ihe \1,ond,nU OP,,,;IlOOI' w,th n I, ne grindln(J paste unli! n contInuous rlnn 01 trUIH U 'ey l1I.1tl I"llsh appears on both vnlve nnc! vollve seat C.1refully
clean off ,III lr;lC()S of 9,in donu paste . Blow Ihrough the gas pass<1ges With comp",ssed air 7 Check the valve springs for dn!1ln\le and .1lso check the free len\jth. rcler to the Spceo/ lcntions at the beginnong of this ChJpter, Renew II defeclive .
.. ··'1:
. ,
•
,r· ' .
t5 2A Comp' ess the SP'Ii") woth II valvlJ
! ' Il "nU comp,esso, . 1
5 .2£1 thu" """ove the collets (n'il\l'lellC 15 2C. followe(1 by the ,elnmer
1520 ... an d valve SP"Il\!
p,ohe show,,)
t;. "" &' '
'('ii" " 18 ... ,,,
'" ' .
. '
15 2E RlInlov,nU nil 'nlel valve 15 2F Inltl valve (top) and cxhnust v<1lvU {bot 10m) COlllpo"ents
.. ----------------------------~, 灲潣慲浡湵慬献捯m

Chapter 1 Engin e 47
--;; ble chec k ~II littings nnd elcct"cill connections. Ensu,e thnt the 2 .,",or is correctly lilted ilnd Ihil t Ihe IUnil,on tlmmg StJtlC Selllll\) 's distrlU
I CI , t II in doubt Ie el 10 1npler . eorr~~ ~10VO 1110 SPJlk plugs nnd the '- ' conneC lion from Ihe 1\)111110n 3 '1 Turn Ihe engine over on Ihe st~rler motor unlil Ihe 011 pres~!II{! co'· . light is e~til1gu,shed or unlIt 01' pres sure IS .ccorded on IIl{!
warnu"lg . d I This witt ensure Ihill Ihe engme ,s no l Slarve 0 0,1 dU"I1!11he g~~ge,. I,w minules running alte. IflIlJ.1t SI.:lrl·Up. The l uel syslulll W Ill ,,,toea . I· • be p!"iOled dunng IllS ope.atlon.
: SOReconne<:llhe '_ ' conneclion on the 'IIn'tlon co,1 and ,elll th e sp.:llk
lugs and loads .
Stilrl .Ihe ~ngme .. ~ AS soon as Ihe engme Ilfes and .uns. keel) ,t gOll1g ill il lilst \lckov(;.
nl (no las te,) and bring it up 10 nOlll1nl wo.kong ICmpernturc ~ ~s the engine WilflllS up there WIll lie (){I(I smelts nnd SOfll~ "mol Il
hom pariS getting hOI and uUI.l1Ing olf all (leposIl5. The Signs IU luok
10' arc l eilks 01 w<l!er or Ol!. which WIll hll uhvlOus If SllrlOus Che(:k ,d~u he exhauSII)ipe llnd I1lJI111old connections as lhese do nOl ,lIwilY s Iond :he
i•
exact gos liUht position unlil lhe w:1I1l11h ;oml vlh!al'On hiwU ;I(;t,," on Ihem, and il is almos t CllrWU1 th.11 th(ly WIlt ncrHI I'Hhw1l1l1H hllth". Tills should be done. of course. wllh Ihe C"( ,,nc slopped 7 When nOrmal running lefllJ}Coallll e hilS hecn .cnch",<I. &#34;dl,,~t th" l"'OiflC ,die speed as desoil}Cd In Ch.1ptc. 3. 1 S lOP Ihe engine and wnll a lew ""11,,1,,,5 10 sec ,I any I"l",cam or tool')flt os dflJlP lng out when t he ",nuone oS ~tallona.y 9 Alief the enuinc has run 10. 20 ""lltltIlS .(!move lhe en!Jllu: .oc~e, cove's ~nd rocke r shafts .1nd rllCh(,c.k Ihe tluhtncss 01 lhe cylondc . Ioc.111 boilS (photo). Also check the tiuhlness 01 lhll sums) bolts. In hOlh taSCs usc iI torque wrench. 10 Road teSllhe tar 10 chcck Ih.11 thC Im"nU IS correCI ~n<l Ih"t Ih" enOine is giving the necllss~ry Sl1100tllllr.SS <ind power. Do 1101 .ace Ihe
(lnuine -il new bemings and/or pistons "nve hcen lIlted II shollid he
I' !.tilled as a new engine and run IIl.1t.1 .cducc(1 spcud tor Ih~ IUS I 1000 miles (1600 km).
PART B: 3.0 LITRE ENG INE
39 Gener;!1 description
ThC !lcne'il' conl,uu'illion 0 1 the 3 0 hue enuine is sil11l'nr 10 the 2 8
( \:\.~ ,..d r •• -~~ .. ; ~
389 Recloeck,,'u Ihe Iluhlness 0 1 Ihe cyhnder head bolts afte. ,,,,,.loIlU lhe enu")e fOf 20 'I1In ul('"5
hire nllu""1 d(:~c&#34;hed III Sec(,on 1. Thc Slunillcan t dltferences iI.e .1S follows
(i') FI,'I •. yllll(/vr ht',1(/$ ",'III the combustion cl.,1mba,s itl lila I&#34;.~I()IIS (b) Imhvr(/",llly IIIOUlIlCd rOC~t&#39;f ,Jrms illstead of a lockct sitaft (c) W"lvr pump 10C,11cd 011 Ihe ,i!llu of the allgine ((f) DiSlfllmto' ,WI/ orf ,,"1/11' (I,ivell f,om thc front of thc c,lrmllllft (e) ML'ch,mic.1llllcl,Jl/flfP ollcfMed by ,1f1 ccccntric on tllC frolll vllhc c,lmshMt (f) /rr.';" (Ill sC;llloCMCII '" ,1 S':l'olfall: c,ltric, (y) OJ! trltvr IOt';llvl/ on tlw "I}fI1 lef(-h,mrf sidc (If tlw clI{Jlln'
Fig. 1.9 Sectional view o f tho 3.0 litre engine ( Sec 39)
i
"
'j
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7
Chapter 1 Engine
Fig . 1.1 8 R ear oil sen I ilnd ildaptcr pliltc (Sec 84)
84 Renr oil se;1i ,,,,(I lIywheel - rc fitti"u
1 I'll the ()n!J&#34;I(~ .r,," ,,(1"1'10' pla1<:1 and s(:clIre ,I wllh 'I S IIv(: holls. 2 Smenr en\J1ne (ld OlltO the CI,mkshah '''". Smear 0,1 on the lip 01 the sea l tlnd pos(( lon tlon ';".11 on th e cran hha ll. 3 Align the seil l c;""er holos wllh Ihose 011 the cylrnd(:, hlock . Insell the loul bolts and 11!lhlCll Ihem 10 the SpeCifIed 10lqUfl 4 F it the flywher.:l . or dllveplalc on au lOlllallC lwnsrnis sion Illodels.
InSerll h e six holl S ;",d u\llole rllhem 10 Ihe 10 lque w rench sell"'U Uiven in lhe Speclllcm'olls
8 5 Sump -rciiuill!)
En~&#34;,,, lh;ol Ill" ru,rI "'!) ',u.l,u :e s 01 hoth IllI.! Slimp a"d t h e c(,1nkcilsc ,lie cl ea" ,mol IIi,1I n", '.""I",!) SlIrJ ,u;e 01 the Sli mp IS not d'S lo lte d. 2 Apply IO" ,I,,,!! c"'''pollnd 1 0 the pOUltS wllel(~ Ihe l"llllll) cover ablilS lhu ,;yir r"lr" 1,Io ck .lIId where Ihe rea' 001 $u,,1 carr.(:r "dIOIllS II 3 Pln ce tloo \J,,~k&#34;l '" fJo~.t.on, lIt tlo" SlIm l} ,'Ild IIlS(). 1 lhe r0Io1111il1l)
bolts ImUO I tl!lhl 4 PrO!lres~lvely 1I!llIt,," llw sump holt s 011 opposIte I'ilr ts lIllt,1 all 0 1
t
hem ,H" il l tl", ~ 1&#34;&#34;:lllI&#34;d IOlllUU , 5 FII ,1 now w;,~h&#34;, 10 Ihe ~Ul1lp II"'UI pili!) , IIlscrl lhe dl,lIll pllll) and
t ,uhlen ,t
8 6 Cylinder h e"ds re;rssernbly
L~y the cylrnd" r h",.\! on .IS s Ide. luhrrcnt e cvcry valve Uu ide with eng;l1(! oil. ,lilt! ,&#34;~,,&#34;t the valves 11110 the \Ju, dc Irom whIch lh ey wele remov(:d 2 To ,WOld d<l(11;U)III\) lhe II p 01 the stern 0,1 sonl , with consequent rncreJsed 0.1 con~UI1&#39;ptIUIl. wrnp <I p.cce 0 1 ndheslvc wpe. or fo il. fOund the \JrOove o f cvery v,llve SWill Sh( le lhe scn ls over t he valve sIems and push th clll over th.: lupS of the vnlve u",des 3 Remove Ihe &#34;dh&#34;~lve wpc. or fOIl. horn Ih e vnlve S1(~I1IS. 4 F,t the valve sp"nl) ovc, the valvc. Wi lh thc close cOllcd end 10wnrtis the Cylrnd er head. lhen fll thc sprin\J relarne r on top 01 lhe
sprlll\). 5 US1ll\J a vnlve ~prul!) compresso r. com press lhe splln\) lus t enou\)h 10 inse,t the IWO Splil COIl,,15 If lhe vnlvc spml(j is compressed 100 filr.
lhero.s dilnlJC' oltl1<.: ~I&#34;&#34;IU rcW""C' dillllil\)IIlU tllC villve SHlm 011 sen l
G Ahcr "lsert")!J tit" ~pllt collets. r eleilSo the spllny compressor (111(1
rcmove II 7 C hcc k th"t lh..: ~pl&#39;l cull":IS hilve seilled properly and t<lp the top o f
t he v"lve S1C1lI hUhl1y w llh a plJstrc headed hJmrne, to ensure 1I11S,
Fi g. 1.1 9 Tightening sequenc e for cylinde r head bolts on the 3.0 litre enuine (Sec 8 7)
a Repe"l liln pruccdwn orven III p;ua!Jrnphs 1 to 7 o n the (CmJlnlllU
v,llv"s
87 Cylinder heads - re fitt;nu
11 the tappels w ere rcmoved. luiJricnle lhe lilppets nnd I heu hores wnh enoine orl nnd insor t thOlll wilh lhc;, d Ished cnds uppermost Ensule lha l every tappet ,s rclltlcd Into lhe hore hom whIch II wns
t nkcl1
2 Mak e sure tha t Ihe rna t"'!1 surlaccs o f lhe cylinder block. cyl lndor henrJs ;Uld 1111,,1 Ill,lIlIlold ;lIe de;"l. then plnce new cyhndcr head \Ja~kets ove, the Wildes un thn cylrmh" block. Tho cyirnder head \I,,~k ~IS beilr thO malkln\! TOP f:nON T ilnd nced to h e pOSII,oned
cOII(:ct ly .
3 Low ul Ille cyl ""lcr he,1ds ov"r the" posl tlonrngst u(!s, Although t he cyhlld\~r headS ,"0 Id entlc;,I, they should h,lVe been Illtlrke d when remuved ilnd should be lehllUd III thcrr ()IIUinal positions t1 Inse rt the cyirndcf 11I)"d boilS f"'!I(:r t.!Jh l then tIghten lhelll prUglC SSlv(: ty OIl the olde, shown III r,U I l!J and III llle stnucs",s U iven
m the SpcelirC;lt'OnS
88 Rocker arms and cover
s -refiUing
Ensure Ihm "II Ihe puslllOlls ,lie ,nselwd I!ltO the" p'llpor placos ;II1<J lh at thc" lowcr ends nle on\J"gcd in the ClipS o f the t"ppelS 2 Place the roc ker arms over tho jlllshrods. fIt the fulcrlllll seMS and ;ldllJS 1o r nulS. an d liuhten the ntl)usting nulS !"'ger light 3 Se t No 1 cyllllder at TO C <Jnd reh t the dis tllbu tor (see ChilP1C' 4) 4 I\dlust the vil tve clea ra n ces as descrohed in the foll o w rng Section 5 FIt the roc ke' covers , uSlIl g Ilew \Jilskc IS . ens uring tho t the gilskets arc senlOd e venly n il round l ho cylinder hend. Fit the cover altilchlllont
l
)olt S nntl lighten them t o the spec ,f led torque.
89 Valve clearnnees -checking nnd adjustment
R eier
to SeC!lon 3 5
90 Engine ancillaries -refitting
R eier 10 Sec tIon 46 and ref, t lhe I. ste d componenlS w,th refercnce
to th e Chaptels ind,cilte(f
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) Chapter 3 Fuel and exhaust systems
FiU _ 3.13 Components to he checked (Sec 9)
A
8
C/u':(:A fur wP.olf alJd (/illlli'f/I.l Clwck '(If .~/I&#34;lIitJfJ
C CI)(xk for hd,ill{J {) Check (Of spfrlling
10 Weller cnrhurettor ""tom,lIie choke - rcmov,]L overhaul
and refitlinu
1 DlsconlH!~1 Ihe i)illicry nC\j<ll lvc IC.ld. 2 RClllOVC lhe <I" ,Icaller ns dcsc"hcd in Section 3
3 UnscI!;w the contlC hoi! ""d remove the cover. 1 Remove the three SCfClWS. dewell the housing <lnd unhook the bi·mctallic spring
5 Detach Ihe interna l hCill shield . 6 Remove the smgle U· clip and disconnect the choke plote OpCfilting link, 7 Remove the three screws, disconnect the choke link ,It lhe opefiHing lever nnd dctilCh the chokl:! assembly . 8 Remove the three screws <lnd dC1<lch the v"cuum d,aphr<lgm assemhly. 9 Oisn1nlltle the !Clllnin,nU p"rts of the choke n1cch"n lsm. 1 0 Cle,ln ,III the components. II1spect them lor we"r [111(1 damaUe MId wipe them (hy with" IInt ·flee cloth. Do not use [lny lui>ric"nts dlllinU
le"sselllhly. 11 Ik"ssemhle the choke meCh'1I11SI11. 12 Relit ll1e v"CUUIll til"phl1'lI)lIl alld hOUSII1,). enslllinu th"t lhe (hilphl,l()fIl IS lIolt before lile housing IS fllted. 13 Ensure thm the O-IIllg is correctly locmed in the choke housinU then reCOllnect the lower choke I",k Position the assembly and secure il WIth the thr ee sClews . ensure thnt the upper choke link loc"tes
cOlrectly tluouUh the c"rlJlJretlOf body 111 RecOllllec t the upper choke Imk to the choke Sp"l(tie. 15 Check the V"CUUIll pull· down <lnd choke phasing. [IS deSCribed in
Sect ion 11 1 G RelIt Ihe mlern,,1 heat shield enSlllinu that the hole in the cover loculCs correctly onto the peg C[lst III the housing. 17 Conllect the bi·mewl Sp"llg to the choke lever. position the housing and loosely lit lhe Ihree relnining screws. 18 ROlnte the houstng untIl Ihe marks ,lre "Iigned. then light en Ihe three screws. 19 Refll lhe cover logether WIth [l new g<lSkCI and lighlen Ihe centre bolt. Top up the coohng sySleml1 neceSSJry. 20 Reconnect the batlery. run the engine and adjust the 1"51 idle speed. "s descflhed in Section 11. 21 RefIt the ,111 cleaner.
11 Weber carbur e l tor automnt ic choke -adjustment
Note: lile pfOccc/<IIe is dcscribed for a C,,,bUfel/or wllieh is fl/ler! ill Ihe C,lr. bul wllh llic cxccptiun of fast idfc specll alljUSlmcnl. alf tiisks «In bc c,1rried oul 011 Oil! bcnch if fcquitcd where Ihc cafbuff!/lOf has
bccn rcmoved 1 D 'scOllncct Ihe bn(lcty canh lead . 2 Rcmove the illf cleaner. ilS deSCribed in Seclion 3.
.l.I. .... , •• ,. ••. • .. .• . ,,~ ......... , •• , •• .;..,.: .•• ' •.•••• 1 . ;."
.,.', .,1,,/. 1,,' .. 1 . .. . , 1.,.: .. 1,.1.1,.1 .•. : ...
J
Fig. 3.1 4 F loat level adjustment t<lg -<lrrowed (Sec 9)
Fit!. 3.15 Automatic choke housing re taining screws­ilrrowed (Sec 10)
.------
./ /' (
Fig.
/
3 .16 Automatic c hoke h ousing alignment (Sec 10)
A Rich c B Normal scl/lllg
marks
71
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)
Chapte r 3 Fu el an d exhau st systems 79
Ii
0) G
\E )
' .. ~ ee)
Fig. 3.33 Fuel injuctiOIl system circuit di<lUrnrn (Sec 22)
1 /J,1I1C 1V C W"lflll (If! luyu/',lor plMC
2 Sialicr I/Iolor /) Axll/,-"y ,1i, device G Theo1lO/lmc switch
3 fgnitioll switch E FIII;I/Iump H St,lfl valve
A M,lin con(Iol r(;/,)y F S<!fCly swllcil on senso! J Impulse module
8 Power supply rcl.1Y
Tho safety switch is provided to cut olf illl power !O the fuel injection sySl(!m if the air sensor plJIC (mixt\HC COlllrol assemhly) IS il the rest position even if the ignition switch IS all. The s[lfcly switch would ell! off the power to the fuel pump for oillllpic ,I il fllOJllmu W<lS darnol\jC(t 111 ,111 t1cciden t or hurst through deHH,or,11'QIl lhc ~wltch is located close to the mixlluc cont,ol lin'!. On f,lIer models th\! Sille ty switch h<ls been repl<Jccd by <I S<llcly control module. ThiS Illodule supplies power 10 Ihe luel pump prOVided Ill.ll It IS "xe,vlIl\j pulses Irom Ihe 'V'1I1Ion co,I, Ihese pulses helnl) evidellce thm the env,ne is 1I'''ning. When the engine stops lor wh<ltever reason. the salely control ule cuts 011 power to the fuel pump.
23 Aoutino maintenance
AI the IntelV<lls specihed ill the Routine Milmtenill1ce 5 eC1l0n ,n the Ironi 01 the m<lnual cmry oul the lollowing procelillle$.
Check (Jnd adiusl idfing spoed 1 COllnecl11 11Ichomeler to Iho engine then rlJll the enVine to 110rmal Oper<llll1g lemperilture. 2 Incre<Jse the engine speed to 3000 rpm lor 30 seconds then allow
., '
,. ,
< &#39;(:,,~ , • . . ;::~t,·· . , ,
.' ) . ;~ ~~;:;: ~iJ&#34; .. ,
n fr.X l
the engllle 10 'die.
3 Check Ihill I he idle speed is lIS given in the Specificmions ilnd il nccnssary "dlust the idle speed screw 10cllted heneillh Ihe Ihrottle housinv {photo).
Check conditiorl o f fuel hoses " Reier to SeClion 2.
Tighte/l the inlel manifold boilS and /luis 5 Refur 10 Section 29 and lighten the inlel rll<lnlfold bolts illld nuts in tile sequence viven.
Reflew Ihe fuel filter 6 Refel to Sec tion 25.
Renew the air filter element 7 Disconnect the h<J\leIY. 8 Release the spring clips on the air cle"ner {phow) 9 Lill Ihe <lir cle"ncr cover. logether W ith the fuol distributor
assembly, ,1rld hit out the air filler element {photo). 10 Cle<lnthe inside o f the ai, cleilner body and covel 11 F,t il new clement then refitlhe cover. 12 Reconnect the bllllery,
23.3 Idle speed ildjustrnellt sc rew (arrowed) 238 Releasing the .. II cleane l spring Clip 23.9 Removing t he air filter element
-
I',
I t, ' .
;
!
" , ' .• I
! 1 I'
: 1'1 1 . ,
I
I '
I
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~9.1D Tn~ Inrel m<lnirold (loskm
"
-'. I.: .,
I
:
29 2A Unscre w Ihe holts ...
) "Ig 3.361n101 m<lnifold nul ilnd bolt lightening sequence for 2 .8 lilre enginos (Sec 29)
- z-.~,.......------...-.
,
29 1 E Se,~hn!J !;oIllJ)ound locJlIon 1l"IOIc fo1lU1!J the O,ls~&#34;t
,
292B . ;md rClilOve the outlet elbow alld WllPlll·Up rcuu l,1\or mOunt",\) Ilr;1Gk..,t
293 TlulllcnUl!) tho IIIle l mnn "old IHIIS nnd botls
,
d
procarmanuals.com

Chapter 4 Ignition system 93
8 Distributor (2.8 lilre engine) -overhaul
There arc only two overh"ul jol)s possible. these being the fitling of a t"UUcr carl krtllnd the renewal of the vacuum advance uni\. Excessive
I -
Fig. 4.5 Exploded view 01 the distrihutor fitted to the 2.6 litru cnginc (Scc 6) 13
, DIS/111m/or Cill' 2 HOIQ'lIrm 3 Du,~1 covtJr 4 Rolf I,m , Clrchjls 6 T,iY(Jt'f ,1m! ,lssl.'ml!l y 7 Tii{Jllt'/ coli 8 SWim <lim ,lSsom/)ly
9 Sc/ow
'"
BaSOI/Mlo
" SCIOW
"
a·rillg
'"
SCIOW
" Vacuum ullil
"
Dis/li/)uiQl body
'6 Ch,1 c/.ll11/1
"
Clip
weM or dllmage to the distri butor body or drivesh"ft wrll I11C<ln Ihe
r enewal of thO complete distributo •. 2 Refer 10 F'g. 4.5 fo r the order of fomov<ll of tho coml)onents and lightly oil the shalt <lnd vacuum unit MOl during rCilsscrnhly (photos).
~
, @---3
1j---4
<f2)-----5
~__6
~--5
~
-7
'" ~ ~ .
~-5
8---~ ,::::. -;:.
I .J
U-9
® -IO
II_--g
--15
iltjL" ,
~~-12
16
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94 Chapter 4 Ignition system
i ' .
. --8 2A Removill{J the IllnSlre dust COve, (28 hl'c Cllume)
./ :,
, , ,
(\. I ,
" 'v
J 2C W'''I1!j connector i'Uld seCUJlIlg screw (lHOwS)
9 Ignitio n timing -adjustment
Wnh the (.lIs\"OuIO' III!Cd ilS dcscllbed OIl SectIon 6, check Ihilt 1Ill! COHCCt llllllng m;l!ks "'0 ;1119110d. 2 To check the ;1111,,11 (5 t;1I,e) setting, .emovc the (I'51"lIu I0' c;lll [11l\( check IhJllhc rOl0' ;lIm IS PO"1I1119 to the No 1 cylmdc. scgmon!.n the Cill) rndlcmed by the sial on the 11m. 3 On the 3.0 lUre engIne the cont,le l poullS ll\u~1 he ,ust SCI)ilril\U'!J Tho e~ilCt Instant C,1" he checked by connect"'u il 12 vol1 lest lamp between the contilC, brcilke r low tenSIon Iemur),,1 iUl(t O,"lh, W,th the iUnilion Oil, tho d is trlbuto. ShOllld be turn ed nrl\,·clockwisc unlol lho bulb luSlligh(s. " On (he 28 li(re enuule the ("gger arms and stator ;HIllS must bc aligned It not. (um I he (hst"bulOr as necessary . !:i Tighten the (hSI"buto. clamp boll and .ehl the cap 6 Set In thIS way the lUlling WIll be alll)'Olmalely co<rC(:t but a morc ilccurate rne thod IS by using a stroboscopIc tu"ing hghl. 1 HIghlIght the spcclilcd lIming marks on the trrllll1U cover an" cronkshalt pulley WIth wh,le pamt or chalk 8 Connect a timing liijtH to Ihe No 1 spar k pluij le;l d, 9 Disconnect the vacuum mlvance pIpe at tlHl carhure1l0r or au bo~ juel injection) and plug the pipe then .un the engine unt" nOlln,11 ope.ating telllpera tur(!s a.e .eached.
, ..
8 2B UtJlle. vIew 01 the l.imJer Mrn .lrld Call (28 lIt Ie enU"Wj
.1
,I,
.. .."
8 20 Vacuum un.1 sC(:u"ng screw WIth e')Hh lead termmal
10 W,lh Ihe enij1l1e I(lIrng pornt thc \fmlng hgh( at the cr",lksholl1 pulley The wh,le 1),1mte<l mar ks WIll ;lIme", sliltlonary ,111d If thO tlmlno IS COller. 1 (hey WIll be III ahgnment. 11 To adjust the tllnm9. stop (he engine. sla ck en Ihe cl;'lmp bolt iln(1 turn the (I ,st"l)uto. slIghtly_ TIghten the clamp bolt. star t the engrne ;md .Ct;heck the (umng Repeat tillS 11IocedUie unlll Ihe rIlilrks ,)re In
hne
12 To check the mechanrcat adv.1nce. Increase the engIne speed and note whelher the wh,te malk on the pulley moves away Irom the mark on th e pOInter . 11 It docs the mechanical advance is lunctioning 13 W,th the enOlile Idlmu the vnCU\ Jm advance can be checked by suc kIng the oldv~ncu pIpe that W.1S removed from the carburellOI o r air box ThIS should also c.Juse the while rnark on the pulley to move away horn the mar k on the pointer 14 On completIon remove Ihe timlllU hght and rC(:onnec lthe v.1CUUIll pIpe
10 Ignition illlllllifier module (2.8 l i tre enuine) -removal and rClittinu
Thc Iunitlon illl\J}l lflcr module is locmed on Ihe left· hand SIde of the engIne COnlpar tment. tUSI behind Ihe hOnt suspenSIon strut upper mounting.
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