ECU FORD CAPRI 1974 Owner's Manual

Chapte r 4 Ig nitio n sys te m
6,SA Unsc rew the clamp bolt, 680 ... and remove the (tistJlbu to. 68C Rotor nnn alignmen t ;]lter re movnl Irorn engine
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F ig . 4.3 IU "i\iol1 timinu ma,ks o n the 3,0 lit.e e:1Uine (Sec 6)
Allow ;//(lic<1leS din'cliu" 0' !(JIM;oll
7 Distributor (3.0 litre engine) -overhaul
W,th the diMJlhuto. removed from the entl,ne. 'emove the rotor arm and the cont.1CI breaker assembly . 2 Prose Ihe small Clfclll} I'om the v"cuum u,,,t p,vo l IXJSt. 3 flemove th e two sc,ews wh,ch sucure the hfllaker pl,lI!! to Ihe d,slJlbu tor body and hit the ,}I'rte orl.
" Slacken Ihe self'lappmg SCfew which SC<:UlCS the condense, and low tenSion leads 10 Ihe contact l .. eaker a ssembly and shde OUI Ihe lo.ked ca ble terminations, 5 Undo imd remove Ihe condenser rCI.1,nlfl!.l screw and remove the condense •. 6 Remove the c" chp. lIiJt washer and wavy wash er from the pivot post. Se parat e the two plates by h,ingmu the holding down se,ew Ihrough Ihe keyhole sial in Ihe lowe. 1)late , Ta ke care not 10 lose the e.Jrt h spring on the prvo t flOst. 7 Remove the two se,ews seeu"n\) Ihe vilCuum un,t to the d IS t"lHIIO' hotly .Jntl remove the vacuum uni t. S To d,snl.JllIle Ihe vacuum unll, remove the plug I.om the end 01 the
unit (md withdraw the spring. vacuum stOp and shims 9 Oelo,e disll1<1ntling th e centJllugal .Jtlvance mech.Jnism. note thM th e tw O spri ngs arc d.lle.ent and ma,k them so th.Jtlh ey .Jre ref'tled in th ei r OJlgHlall}lilces . Remove the sp. ings. pJlse all the circ lil)S securong the cenlJlluga i weights. nl.J.k the weight s 10 'dent'fy their o"ginal positions and then remove them ,
1 0 M3 lages w llh the s tol) m Ihl! ;]C hOn I)I"le II II" s IS not dono. II rs ~ s, llle to h.Jve th e ,oto, ,'Jln 180' from 'I S COf/,-ct pOSition. 11 Remove the lelt pad 1 10m t h e centre 01 the C.JIll. e~pand the circhp
x - ------:::-.
z
y -
Fig . 4.4 Distrihutor lilting position on the 2.8litrc e ngine (Sec 6)
XX Re.1r "U;,.' of ellgmc yy V,1CI/(JIII flllil Mas Z = 0 '10 11/'
A Triggcr (lffll U Slillor l!fII!
whICh'S Ihen exposed Ilntl ,emove ,I L,lt all Ihe Ci"n and 1l(IV3ncc plJle ;Issemul y,
12 Do nOI .cmove t he d,stJluutor Sl)indle unless II 's necess.l'y to "1 a new ge.n. 0' S I)iJldle To remove Ihe uear . usc <1 IlUnch Ilnt! hJmmer t o dJlve outlhc lock P'" and Ihon pull tl)() !.Ic", frO'11 Ihe sprndle T"ke cn,e
1 0 rOIil'" ilny slums, 0' wllshe,s wh,ch fll.Jy be In led . W,t h the ueJ' lell'Ov\:(\. the sl)lIldle .Jsscmbly can be withd,awn hom the d ,s'Jlhu tor 13 Belore reassembhng. ca,elully clc.J1l the body 01 th e d,s lnbulOr and "II a s CO'llpo llent p"'ts. II th e sp,n(!ie has been .emoved. lulmenlC II w'lh e'lu",e oil h efor e ,ellssemhly. 14 Reassenlbly.s <1 SUa'ghtIOrw<1Jd ,eve'SilI 01 d,sman tling bUI t he,e Inc several pointS which shoold be noted.
15 Lut)JJc;]te th e ce Jltlil ugnl weights and otho. p3rtS ol the cenlrifugal
advnnce mechanism. the diSlrrbutor shah a nd Ihe pa'l 01 the spindle wh,eh c.l"'es Ihe cam assembly. using engine all. Do not orl excess,vely. 16 " Ih e dr'veshnlt hilS heen .emoved. firSt re fi t th e thru st wash ers below tho action plnte. bolore "'se,ting the S h .l h into thc disl. ih llto,
hody . FII the w3vy washer .Jnd IhrUSI washcr to the lowe! end 01 the shah and then relilthe ge.Jr. secuJlnU it with a new spring p in. II a now gear. or a ne w u"ves hnfL h,15 been fllt ed . a n\lW hole should be d"lIed .1t 90' 1 0 Ihe e~is'U1g hole 17 Alte • .Jssemhhng the centJll ug.J 1 weIgh ts .Jnd sprrngs. check that Ihl!Y movo hccly. w,thout I)inding, 18 8clOle assemblmg Ihe breaker pla tcs . make sure thill the three nylon bearing slUds a.e located "1 tht) h oles ,n the uPllC' uearinU plale and Ih3tthe e.Jrth,ng sprrng ,s foiled to the p,vOt post 19 On complet'on of assemlJly. adlust the conlnCl b'eake , gilp to the spc cified selling
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94 Chapter 4 Ignition system
i ' .
. --8 2A Removill{J the IllnSlre dust COve, (28 hl'c Cllume)
./ :,
, , ,
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" '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 , ..
8 2B UtJlle. vIew 01 the l.imJer Mrn .lrld Call (28 lIt Ie enU"Wj
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.. .."
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 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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,6 Chapter 4 Ignition system
9 The spark plug gaf} is 01 conside rable impor1~e. as. if it is too lilrge or too small. the size of the spark ilnd its efficiency will be seriously impilired. The spilrk plug should be set to the ligure given in thl} Specifications ill the beginning of this Chapter; IOTa sel it, measure the gilp with a/cere, gauge. and then bend open. or close. the outer plug electrode untillhe correct gap is achieved. The centre electrode should never be benl as this may crack the insulation ilnd cause plug fAilure if nothing worse. 11 Relit the plugs, and re/ilthe leads from the distr ibu tor in the correct I"ing order. which is given in the Specifications. Screw the plugs in by hilnd initiilily then tighten them to the specified torque using the plug spilnnel.
12 Fault diagnosis -ignition system
By lar (he nlo1jori (y 01 brCJkdown and running troubles ilre caused by InUits In the igrlOlron system er(her in (he low (enSlon or high tens ion circuns There LJratlon or fuel Injec tion Setlln(Js, ilre normally tllle to faults in the d,strrllulOr Or 10 Incorrect I(Jrlltion tlllllrl!J .
Engine fails 10 staft 1 If the engine falls to StM( and t he cal was IIJnning norll1t1l1y when.t wns IJst used, first check ther e is fuel in the petrol wnk. If (he engille tums ovel normally on (he starter 1I10tor and the bilHery is evidently well chmged. then the lault mny be in either the high or low tension circuits. Firs( check Ihe HT circuit. Note: If lire hal/cry is known 10 hI! {(Illy ch,}lged, Ihe ignilion liglll cOllies on, ,1I)d Ihe s/arler 1II010r {,lils /() tum IIIe ongine check the tightness o f the le'lds on the biltlely terillinilis ,1I)d <1Iso (lte seCUIIHWSS oflhe e,l,th leold (0 irs cOllllec/ion 10 tire body It is qui(e common for tlie le,1(ls /0 Ii,}ve wOlked loose. l.'vc'1I If Ihey look ,1n(/ lecl seclI,e. /I one 01 the boll/my ((:{minM {Josts [11.'1.1' vC'IV liot wi".." (Iyiny (0 wOlk Ihe s/mler 1II0tOl (his is ;/ sUie IIId'C,7/IUI/ 0/ ;/ I;wlty COllllel;('On 1(1 1h.11Ie"lIillal. 2 One of tile commonest rOilsons lor bad stmtln!J IS wet or d;UllP sp,uk plug lead~ and dlstribu(or. Hemove (he distllblltor cap. H "JOdenSil(Ion is v iSIble IIlte!llillly dry the CJp With il rag and also wIpe ;lCf the leads nelu the cap_ 3 If (he enUiue sull fmls 1 0 St.l.t. check that cunent IS reachlllg (he JUS, by dlscounectln!1 ench plug le,l<1 in turn ilt the sp1Hk plllU end, .. ,ld holdlllg Ihe end olthe callie about 5 mm (0.2 Ill) aWilY from the cylillder block. Spin the enu'ne all the sta rter motor. 1 Spa,klllg between the end of the cable ilnd Ihe block should he fa"ly strong With J strong leuulm blue spark_ (Hold (he lead WI(h wbber to ilvold elec(IIc shocks) If Clluelll is reilching (he plugs. then rel110Ve them and clean and reg,lp them. Tho engine should now SWrt 5 If there is no spilrk ilt the plug leilds. wke of! the HT lead from the cenlre of the d'sltibutor C 6 If Ihere me no spmks Irom the end of the lend 110m the coil check the connections atlhe coil end of the lead. If il is in order 5(31 1 checking (he low tension circuit. 7 Use iI 12V voltmeler or a 12V bulb ilnd two leng(hs of w ire. On conventional distributors switch on the ignilion i1nd ensure tha t the points arc open. On breakerless dlstlibulOlS ensure thilt Ihe segments on the rOlor are nOt adJilcenl to (he triggel coil. Make a tes t between the low tension wire to the COil ( + ) terminal nnd eilrth. A leading of 7 (0 8 'lollS should be obtained. N o reJding indiCiites a break in the supply from the ignition swilCh or il f,1UIl in the ballast resiswnce wire. A correct rending indicn(es a faulty cojl or condensel, or n blok en lend between the coil ilnd the distrIbutor. On breokedess ignition systems the (rigger coil and ilmplificr module are suspect . H~ve (hem checked by a Ford dealer. . 8 Take the condenser wire off the points assembly Jnd with the points open test between the moving point ilnd eMth. If there is now a leildrng then the tault is in (he condenser. Fit a new one as dcsclibed in this Chapter, Section 5 9 W,th no reilding from the moving point to eilrth, wke ,1 reildrng between eil/th ,1nd the ell or negiltive ( - ) teminal ot (he COIl. A rendm(J here shows a broken wire which will need to be renewed hetween (he COil ilnd dis(rihutor. No retlding confirms thil1the coil hilS failed ilnd must be renewed, afler which the eno"te wdl run once more Rcmtmher (0 rel,t tho condenser wire 10 the pomt$ ilssemhly.
Engine misfires 10 If the enOlnr. mlsfues re!Julariy. run It ilt a f~st irllrng speed. Pull off eilch 01 the plu(! C,lpS III hUll nnd hsten t o (he note 01 the engrne. Hold the phl(J cnp In il dry cloth or with a rubber g love other Pollt of the dlstllhu(or. These lilles J,e p,lths which now conduct electllcit y Jcross the CJp lhus lewng it run to e,,'th. Tile only answer IS a new distllbutor CilP_ 16 APilit frorn the Ignition tll1l1ng being Incorrect. other Ciluses of rlllsl,,,ng hilve already been denl( w l(h under Ihe section dealrng with the f,lriUre of Ihe enuine to star I. To reCi!p - these 0110 Ih,lt:
(,J) The cOllm.lV be {,lufly giving ,111 iniNmil/elll mislile (b) Thele limy he ,1 (/iJmiJged wile or loose cOrlflee/ioll in till! low (eflsion circuil (c) The condensel /II,lY I;e shOll circuiling (i{ filled) (d) There nwy be a meehanic,lllolUI! IiI Ihe dis/flbll/or (bfOken dliving spindle or eOlllac/bleaker spring. if filled)
17 If the ignition (iming is too far reto1lded, it should be noted thallhe engine will tend to overheat. and there will he a quite no(iceable drop in powel. If the engine is overheating and Ihe power is down, and Ihe ,oni(ion tim in!) is correct. then Ihe carburenor or fuel injection should be checked, i1S ,I is likely that this is where the Iilult lies.
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104 Chapter 6 Manual g earbox and autom ati c transmission )
PART 1, MANUAL GEARBOX
Gener"l description
The nl The reverse Ilear all the l.1ynenr has St,nluht·cut sp'" teeth which dllve Ihe 1 st/2"d synchrOlliser huh via the reverse Idler IJeM when I(~velse geiu IS (J1l\Jilge Ge;u$ "re ell!J 2 ROlltine Illainten,lIlce
At the "It,,"v "cc k Yf.'ilfbux oillevul
J.1ck up th,! C;lr amI SUPpO'{ on a xle s!;lIlds. m;lklll\j sure lh"lll 'S levI,1 Alt""l.ltlvely PO~III()n Ihe Cill over .111 "lsfH:r.IIUIl I"l 01 on lamps
) US"'~J ,I s\III, II,le SqLl,lIU key. un~r:",w IllI< hiler pili" f'O'l1 Ilw Idt h;1I1d ~I(h, of Ih(, oe"rI)Ox (pholo) Not" Ihm Oil Ihc lo"r-sp<:ed 11".101)0 the hll", ph,O IS 101: 4 Make UP" piece of bent w ire to Ihe d"llells'ons shown III r-'!I G] lhen IIlSCll II ,II1d ,eSl Ihe ho.ilOntal seetlO'l 011 Ihe tllIca(is of the pIli\! hole. Remove the wire and check Ih e all level On all lour-speed
\Jearhoxes . ,11l(1 f,ve·speed ge.1rhoxes m.1nufactlltud ,,(w, M"y 191;1S (!wlld code FIl) the 011 should be level with (]I a milx"num of 5 0 111111 (02 Ill) helow Ihe iJottOIll edne of the ph)~J hole. I: or ('ve-speed !1(;"'IJ()XI!~ m;lIlufactured liP t o Ap,,1 1984 (Iwlld co(ie EG) Ihe 011 "'list I,,, I"v'" W ill, 11,,; bOllom of Ihe plUH hoi" On I,ve· speed Ilca,hox cs "h"nda<:tu,,,,II,(,twe,)Il M"y 198<1 ,IIld 1\.11111 1985 (Iall sulf,x (,n(iIlHI II'
E) the o'("ltI~1 h" ""'w""" 1 0 0 ""d 150 """ (0 <1 alld 0 G 'n) 1,,;low 110" I)()UDl Il "d~I'! of Ihe I'lu~1 hoi,!
G WI",,,! "'";"s~.,,y top "I' l h " lev,,! with II", ~1'(!<:I(oed !jI;I(),., 0 1 001 (phulo)
" n,,(ot and "!Ih,,,n Ihn fill", plu!) Ihen lowe, Ihe "II to lloe ~)lolllHf
-;;e.1l'lJox -rmll()val ancl .efiuinu
If the IJ"ilrl,ox IS to he 'emov"d from Ih e Cill wllhcHJI romovlIIU Ihe ""II"l(J, Ih" !1'''"j,UX IS rumov,!d Irom heneallo lloe car Jnd il (,IIUe wound cle.11le. support It securely on hlocks 0' stands ,1nll chock the wheels 2 O'SCOIU10Ct the ha tlery
Fig. 6,1 four-spoed \Joarhox (Sec 1)
Fi\J. 6,2 Five-speed !Jcarhox (Sec 1)
I.e , ..
-~
t 25 W II I !
t A • I I I 15 I
7 (11) no I I ~
~-
" I /
~ 10\,
· ... 1--=" ...
Fig. 6 .3 Wire dimensions for IlHlking a geilrhox oil level dipstick (Sec 2)
All dUllet/SIOIIS J/l IIUn A File lIole/n's
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! ,,;
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,j/
' I
live-speed 25 TopP lng'up the gearbox oil 3 ,4 A On the lIve -spee d UOilfhox remove the pack,n g
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) Chnpter 6 Manual gearbox ililel '-
Fin. 6.<1 Usi",! a cranked spalliler to unscrew the goar Inver retainer (Sec 3)
Uus';",,,, 111" !I";)' '"'1''' knOiJ and ",lllOv,! 1he COVlJt ly !:';lIlkud spanner 01 ca",Iloi II~" 01 aha"""", .",,1 dill! On llw j,vC 'SI",,,d (ype. remove tl", 10;"" P oil wl"d, Ira" not d'ni"ed,
Fig. 6_5 Gearhox erossltH!lllhcr {Sc. ; 3)
'I 0,,,(I)I)I
:C1 the cl,,[r,h c011 st:ClII"'!i lire tr,"'Stl1l~5'()1l to (he "';11 "1\~J'IlC mourI(tll\! ox C'OSSIl\('mIH" to lhc floo, (photo). Remove Il,c C'''''',IIII:rniJcr 1 2 l.mV<'1 [he (,nnSIlHss'on a lillie ,Ind II\S(:r[" block 01 wood hctwecll lhe SW"I' ;Ind the II()nt ellUHw mOI" lll\J so lhm 1hc cllOllle rioes not d,op too I;" when Ihu 1r,IIlSIllISSlon IS '~I))()ved 13 [l"mI)V" 1hc bolts secu"l1g the clutch hOIlSlIl!! 10 [Ile en~l'l\e ;)l1d
hn ekpl.,,!! (photos) Pull the ['.lI1SIlHS",OIl ;,sselllhly I() Ihn 'c;" 10
.,..
3.4C [ho) gc"d)ox e,ossmumhe.
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3.13A Two upp.:. cllllCh houSIIlU-lO·engrne boilS (arrowed)
3 13B A lowe, clutch houslflg-lo·hackpl"te I)olt (I,ve'speed (JeJrbox)
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·06 Chapter 6 Manual gearbox and automatic transmiss io n
disengilge the gearbox inpu t Shill! hom ,ho clutch p,Iot bearing ,111(1 clu tc h friction disc. I, is imporlanllhal,hc engine and transmi ssion <'lre kept in lino while this is being done. 14 When the gearbox shaft is cleDr of the clutch, remove th e
tran smissio n assembly from bCn(!illh the car.
15 When refiuing, ensure 1il1 the clut ch pilot h earing in the end althe tfilnksha h is ill plilce Jncl is scrviceDble. Tic the clutch lever 10 the clutch housing, 1 0 pr(!venllhe release le.rertrolll slipping out while the ,Wnsmission assembly is being lined. 16 Smear some molybdenum-based grease OntO the end and splines 0' the gearbox input s!mh lind refit the gearbox by reversing the fcmovili p.ocedure. 17 II is impO.IMll when offering up the {jOMOO)(. th,lt il is e~ th e clutch ffiction drsc i1nd the Cfankshnft. Ifthe.e.s d.iilcul1y Inlnatinn th e splrnes 01 the gea.box shillt ,1no the frrctio n oisc. select iI \)em to 'CSlrain the movemcnt of the gc,lrbox shillt nnd turn the gearbox
slightly until the splines enter Do not iluempltO lo.ce the tfilllsmisslOn
ontO thO enlJlnO ThiS Illay (i ImpOSSible
'8 Ahe •• el,uinn has been completed. chuck the 011 level Ifl t he .r Gearbox (4 'S II001l) -dismantling
Romoye the lou. bolts hom the 1011 cove. 01 the t.ansm.sslon c~t()"sion housin!J ilnd f.om the lri"'snHs~ir)Ol eo'S<' Ilcmovflthc \:oye. s.
t.1king c from th e seloclOl shalt. 4 Remove tho twO bolts from the selectol sh 5 Remove the Ih.ee bolts from the selector hOUSing COVCI. Remove the cove. with the shaft. then ro tate the selec tor sh th c 15t/2nd. 3!d/top and .cve.se oe,1'5 suiliClently to rele plullger ill th o 3.d/top selecto. '<1'1. Remoy e Iho th.ee selecto. lorks. J Remoye the plug hom the side 01 the c rca •. Allow tho laygeal cluste. to drop into the ho ltom 01 the box. out 0 1 mesh wilh tho lIl<1inshalt gea.s. 15 Withd.aw the mainshalt and elflension assembly from the ge tho '.ont 01 the gembox and slide the retainel 011 the input shalt. 17 Remov e the circlip hom the outside 0 1 the fronl bearing and tap the outer raco of the bearing to d.ive the inpu t shillt and bea.ing assembly into the gea rbox. then lilt them out olthe box . 18 Remoye Ihe laysha lt geaf cluste •. Ihe two th.ust washe.s and any I"'o se needle 'OIiOfS.
R emoYo the .eyerse idle , shah by sc.ewing a suitable bolt into Ihe end of Iho shah and then leye.ing the Sh;'lit Out uSing Iw o open ·ended spanne.s. Fi\)
.
6.6 Removing the seleclor 10lk rolillins (Sec 4)
A CIfC/'11
Fin. 6 .7 Revorso gear interlock nnd light swil c h (Sec 11)
A Ravelse liyh, switch 8 Swing C Plf/ngcr
o h!/ellocl< ball E Sc,ew IJlug
Rct.1ininy bolt F
5 M Remoye 3rd/top gear s yn chron ise. hub ci.clip Ense the hub amf
thud gear lotwald lly lel/erinu the,n gently wrth a p th e mainshah nUl and lemoye it 4 R emove the loc kpli/te . speedometer dfivegem. ilS d.ive ball and Ihen level 011 the reaf bea.ing. complcte With bearing IClaine •. Separate the bea.ing and its lelainel. 5 Remove the 011 scoop ring and lils i gear . 6 Removo 1 sl/2nd gear synchronisc. ci.clip and pull 011 the hub with the bi/ulk .ings and second gear. 7 Check thallhere is a mark to align the selec to. sleeve in .elation to the hub. II no malk can be seen. make one with a dab of paint ~nd then dismantle the synch.oniser hubs. 8 8010/0 sta.ting .eassembly. Clean all parts thoroughly 3nd check
their condition. Smear all Pi/ItS wilh tr3nsmission 011 befo.e fitting .
9 Reassemble the synchroniser sleeve and hub so that the nlafks on thorn align . Inse.t the sliding keys and 1IIIhe shdrn\) key sp"ngs so Ihat Ihei. open ends afe stagge.ed re lat ive 10 each other
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Chapter 6 M anual gearbo x and autom atic transmission 109
Fig. 6.10 Rcvcrsu [JC>lrill[J '"cill[J fo rwMd s (Scc 5)
10 l'I:IClllhl} syllchlonl~!"!! t,,1nlk "n[J onlO Ihe COl It! 01 second !Je,'. ,1n(1 511110 11 onl0 I he Ill:H(\sili,l t tOIJlHiler wltil h t/2nd lIe,,, wnclHOlliStH iluh. Thn \In", on Ilw huh should Iilcn 100war d. 11 Fit Ihe sync hronise, lJ;oulk WI(I >llld the c"clop ""Iudl holds th n
sV"ch'Olllser hub in ,)I;lCC 12 Slide on hisl Ulli". so th>ltthe sync hronise. conI.' pO"'Oll 10,,5 ins ide the synch'Onlsing .i"U which ha s lust ~en f'IlC(1. 13 Fit thc oil scoop. wilh the all [JIOOVC lilCinU .e;lfwa.ds. 14 Apply !11ulii-pu'l)oSC [Jrf:ilse to thc billl·hciI.il1!J seilt 01 the ilc,,,,"U rctaine •. flellt the lelllinCf with the be>lll"g insCrtll(1 >llId Ihell slldll on lhe sr)acer. 15 Insetlthe d.ive hall 01 rh e speedo meler geM inl0 rhe sh"lt >lnd shue the spcedomete. wo.1lI ueM over i\. 1 6 1: ,1 I h e loc kpl>lte so thm the twO wbs ht II1tO rhe speedolllelC. wOlin \lCi" I(.'C'"SS Soew all t he not alld tl{.lhlen II to the to.que wICnch
SCllln!) !/,vun III the SI)()Clhcallotls. Ihen lock Ihe IIUt hy bendi"" th C
I"IJ w;osh!"!! 11 Fit lhu synchltJIu~r iJ,IlIlk 1II'!110 thll COliC 01 thUd !Jea. ;lIId lit them to Ihu 1,0'11 01 Ihu I"al,,~,h,,1t ,"It the 3.d/wp !W~. sYlldllOliiSC' huh.
With Its Wide ho~s IOWiUd~ Ihe le,u illid (illlil leWII) I( III pl;lce hy IIlllll!)
"'e t.:llchp
11I1)ut shaft (4·slleed) -dism 'Hlllillg and reasscmbly
It IS
not nccessa.y to (los",,,,lIlc Ihe Input sh pOssible to ht the la'!Jc cllch" whldl .etillllS Ihc I/Ca.ing in 1)lilCe III the housinu. 5 Eilhe. SIJnd the UlpUt shalt up.iUhl on a bench and tilt> the be~.ing IntO plncc U5in!J a piece oltllhc 01 suiwble diMlete •. or usc the jilws 01 a vicc to SUllpO I! the be;uill\J ""d wp the rem ollhe i"flut shill! with a soft l.1ccd hammer. 6 When the b earing IS lully home. III tilC cllel'l) which .etains the bearing 011 the shall.
7 lilY!Joa r (4·speed) _ dis milnlling and reassembly
R e
move iI shim Irol11 cilc h end of t he layUMr. ,elllove 22 needle
rolle.s hom each enu of tha \JC Wh",n alllh!;! rollers a.e III 1)lilCC. sm ear g.ease ovel thl;!m CO .etain them alld then sccule the sh un ave. Ihe ends ollho rolle.s Wllh y.ease . Due F
ig .
6.1 1 Position o f oil scoop ring with groove facing gcar (Sec 5)
Fi ". 6. 12lDyshDIt and !Je>lr cluste r (Sec 7)
10 Ihe h'!Jh levels of corque lfanSllulled th.ough the gealbo~ " IS ,mllo.tilnt Ih;)t all the needle rolle.s have exac lly Ihe s,1me dlamele. II Ihe n eed le .ollers ,n iI be,ulng have dlffe.ent (liamelc,s. thiS Will cause
t HIeve" IOile! dls urbu!ion which call .e sul t In prelll;)lu.e we 8 GCiI.box (4·speod) -e xamination and rcnovation
ThO.oughly cleall the inle"Or of the gearbox. and check lor d.oppcd needle . olle.s ilnd spr ing pins.
2 Ca.elully clean ilnd thcn e xamine all the component pa.ts fOf gene,al wea •. d,stOltion, slilckncss of f it . and damage to IlIac hi ned
I"ces and th.ead s. 3 E~alllllle the gea,s for e xccsslve wear and chipping of the teeth. Renew them as necessa.y . beDr. II a small rodge can be felt at eilhe. end 01 Ihe shah il Will be necessa,y to renew it. R ene w the thrU St w ashe.s at eilch end. !i The four synchroniser baulk rings a.e bound to be badly worn and II is lalse economy no! 10 .enew thelll. New rings W ill Imp,ove tile
smOOlhness 7 Exam ine t he condilion o f the twO batl·beDring assemblies. ono on the Inpu l Shaft and one of Ihe mainsha Check Ihem for nOIsy
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~10 Chap ter 6 Manual gearbo)( an d automatic transm iss io n
operlltlon. looseness between the inner ;mel oulC. ';)ces. imd 10f genera' wear. NOfIll.llly they should be .enewed on a gearbox lh<11 IS being .ebuil l. 8 II Clther 0' the synchrOnise. unllS ;nc WOUl II w Ill be ncccssmy 10 buy" complete assembly as the Pill ts ,lIC not sold individually. Also check the sliding keys 10' we;'!. 9 Examine tho ends 0' IhO scl(!C I(ll' lor ks where they rub "g.1In51 the channels in the peJiphery of the synchrOntSfl f units_If I)()Ss,ble cOIllp.."e the sclecw. lorks with new Units to hell) dC1Crminc the weill lh,,1 h,IS occtJUcd Renew thelll " worn. 10 If the bCilring bUSh ,n Ihe CXI(mSlon is b;uliy worn II,s OOS110 [ J Ge1Hbox (4·speed) -reassembly
When any hOlt screws "110 a throuUh hor". JOllll11\!J COlllpnulI/t Should hc nj)lllted to I he lhwads 011l11! holl helorc It ," InS/"h~1 2 Fit Ihe /cve.so Idle. He"r WIlli Ihc It,oolle on the !le;1I tuw;IId,. Ih,' lenr.lnsel! Ihe .dle, s h ah nnll dlllle 11111 with .1 pla~t.c·IIIl:IIIt].1 h;""""" unllllhc OOltOnl ollhe Slel) on the end ollhe shalt.s IIIIsh WIth lhl! ,,11.1 0 1 the gCJloox. Thc mIlled " t he OIl lellHn horo 01 Ihe Ui ls k e l ,1nd tW:illnlJ IfJlilinur .lte ah\jl1fJd as III
FlU. 6 13 Apply 101ll1lng compoullll to the threilds 0 1 Ihe bolts. lIl~e SpecIIIC(ltIOns .
0,1
the new IIlput sh,ll! ncedle rollel heilrlllg ilnd push I t 11)10 tllC oJorc 01 the input sha ft Slide the lOP gC(lr synchroniser baulk IInu on to the cone olthe IIlJ)u I sha h 8 FIt the extension houSll19 gnske!. lhen InSerl the ,1s~",hlcd mainsha/t into Ihe rca. 01 the box anll (frille II III untIl the nose 01 Ihe Illalnsh~h is fully engaucd in I he II1PUI shilh necdle l>c,l11nU 9 Carefully lu.n the ge;ubox upSIde down. so thilt the layshalt \}e,lr elusler dIOI)S mto engJgelllenl with the malnshillt Jnd IIlpIII shalt Check thilt the gear and the two lluust wilshe.s il.e III line and then c,l.elully push in the layshalt from thc leal. If necessary till) Ihe S h ,ll! In with the p lasuc·headed IHI/llmer. bllt take grC;lI CJre not to dlslodUe Ihe thruSI washels or needle .olle.s . When fully home. the h Ollom of Ihe slep on the .dlel shalt shOuld be In hnc with Ihe face 01 the box and Ihe mIlled flats should be in IIno wllh the Idler shalt oo.e. 10 Turn the geilrbo~ the lighl w;ly UI) Jnd align the hole in the 1>.111 bemll1g SUpj)Orl WIth the dowcl on Ihc cxtcnsion housing. Fit the eXlenSlon housing. Apply jOlllllnu coml)ound to the ttlle<1ds of Ihe bolts. InSClt them and tightcn 10 thO torQuc wrench seHlng gillen In the SpeCll l
C3tions . 11 1/ a new cxtension bush has been fllle(1. check Ih~t the notch 01 011 groolle III II ilhgns wllh lhe o ll,elurn grOOlle In thoJ extension housing. If thc now exlension housinU 011 senl hilS not illready been filled. slide It Ollel the extension Shill t and enrelully tap it in wilh n h~nllller and n
b lock 01 wood.
1 2 FIt J ncw O ·ring to the spcedomeler pll110n assembly. relit the ~Sembly and f it the C llcli l) to socure i1. ,3 Inser t the r(,lIerse gear interlock plungel. ball and spring. Fllihe boll with aloek plate and lIl$crl tI,c l.Iol t. TIghten the boll and bend Ihe lock plilles to seCure ,to
Fig. 6.1 3 Posilionin g of Iront hearin\} .e lainer oil return \}Ioove (Sec 9)
=-*.------t---.---- ---
FiU . 6.14 R olitting the Inyshaft (Sec 9 )
A hlSC//ing /,1vs/!I!f/ B ClJflec / lIi1:qlll!!efl/ of /,J)'$/I,III illld 'fJve.se IdlfJf sl!,lfl
1/1 Insert ~II Ihrce selecto, 10l~s Into Ihcn I)ositlons 111 lhe gearl)o~ 15 Shllc 1~1/2n(1 \le,1r selector ,,111 through Ihe r,ghl-hilll(1 bo.e mille
I:ilse. Ihell tluead ,t through the 1 S I/2nd gCM selector lo.k Align Ihe holes 111 tile lo.k and r~11 ,111(/ t<1l) in the 101l1)ln. Insert the plunUe/ into thc c,lse 16 FIt Ihe pltlllgc/ '1110 Iho 3rd /lOI) ge,ll selecto. lad. inscrt lhe 'illl
t h .ough Ihe ccnHe hore III the C,lse ;lnd Ihread the raIl Ihrough Ihe 3rd 101) gea. sel()(: tor lo.k. Fit the clfchp to Ihe groolle ;n the se lecta' lilll Ahon Ihe holcS III the selectol 100k and ,;lil. insert the loll pIn and lal) .t home. 17 PUSh lellerSC gc,'1 seleelo, r;llt Ih/ough Ihe lelt·hand bore in the hou$"'g. and then thread 11 through the rellerse gear seleclol fork. Align Ihe holes III Iho IOrk and 101.1. inserl a roll pin and tap it home. 18 FIt Ihe interlock plungC/< apply sealing compound to the plug and dfille In Ihe plug 19 Inse!! ICllerSe ueJI ,clay lever and secu/c it wilh a roll pin. 20 Inse't thO sCleCtOr shalt ItHough the selcctol housing COllel and fit the co~er using a new gaskel Insert the COlier rewining bolts and screw them in Iingel lIghl. 21 FII the sel/lCIO' sh:lh b'lIcket 22 Shdo lhe S(lIOClOr flnge. onto the selec tol shalt. Eng~gc the strew III the ,ece~~ in th O shaft ~nd tIghten the sc rew. 23 0101) lhe Ihloo dctent ba lls 1I1tO thcir bores in t he casc. g1Case the thleo sprinus alld Ilise rt thcm Into the recesses 01 tile yeJ.1>ox COllel. FII
a new COlier gasket and positIon Ihe COllcr onto II Insert the COllel holtS and tlghtcn Ihem to tho 10Ique wrench suiting (Jillen III lhO SpeClf,callons
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