1974 FORD CAPRI Workshop Manual

Chapter 9 Braking syste'm 153
3
Fig, 9 .13 Foothr 1
Spring clips 7 Clip 2 Washer 8 Bushes 3 Shafl 9 Clevis " in , Spacer 10 Rdl/fn sp,illY
5 Bushes /I Rub/u."r P,lI/
6 Pl1d;1I
172 Stop lilOlP switch iHld witi:lg plug
18 Handbrake -adjustment
)Jack up the ,e 6
11
Early (1974/1975) models 2 loosen the locknul on the end 01 the primMY c b,acket. Tighten the Jocknut.
3 Loosen the locknul on the IIgill·hnnd end 01 the secondnry cable then IUfn the adjustment le"ule until Fig. 9.14 Handbrake primary cable adjustment nut an d locknut (arrowed) on early models (Sec 18)
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)4 Chapter 9 Braking system
Fig 9 .16 H an dbrak8 cable adjusting nul (A) on later models (Sec 18) ~'9. 9 .15 Handbrako secondary cable adjustment fonu le and lockn u t (arrowed ) on early models (Soc 18)
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Fig. 9 .17 Hnndhrnke operating lover n n d (llwtment (ldjuSlment gn p ·A' on later models (Sec 18)
'-iller mode!!s 4 LO(:,'I" trw r.al,lo .1dlUS1Cf lust forWi1f(1 01 the 10." axle dillCrcntinl , ;;.~.IIl!J (,.holn). then Sflp,l'ate Ihe ndjus\ing nul and sio eve usinIJ II se.ewtl""cr ["n,'IIO lhe keyed sleove in the bracket.
5 T 11m Ihe lldlu sling nul unlot all c.,l>lo slilc k is eliminated and a cleiuallr.e of I 0 '0 1 5 mill (0.039 to 0.059 in) exists at tho handb'Jke ope.aling 10l'm .. butment points (Fig. 9.17) Temporarily apply the holn(i!),,,kc 10 cnUage t he ilujus\ing nut with the sleeve then recheCk the ildJuSlmcnt.
All models 6 Lower Ihe r.'lr In the ground.
1 9 H ,1"dbrako lover -removal and refilling
Chock till) front whecls then lack l'P thO tcat 01 t he Cllt and SUllport on ilxlc swnds . Rclc~!se the halldbmko . 2 Whete applicahle remove the centre console with reference to Chapter 11.
3 Disc;onnecl the l>fiOlilJy cable from the lower end of t he h andbrilke
lever beneath the etlr . On early mooels baek all the cable adjustmen t
and unhook the c lev is (photo). On lale r m odels remove the splil pin and withdtaw the clevis pin (photo). <1 Remove the SCHlWS and withdraw the gaiter over the top 0 1 th e lever.
S Unbol t the hanrlhtake lever Irom the lIoot. 6 Relinin g is a revetsal 01 removal, but check the handbHlke
ildjustment as desClibed in Section 18 .
19 .
3A Prim ary cable connection to
handbtake lever (early models) 19.39 p.ima.y cable connection 10 handbrake leve r (Iale. models)
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) Chapter 9 Braking syste m 155
20 Hllndbrake ctlble(s) and rod -removal and refitting
I Chock the hon wheels Ihen jack up Ihe rea, ollhe car and support on a~le stands. Release tho handbfilke .
p,imary cable 2 Disconnect \heCllble flom Ihe lower end of Ihe handbrilke lever. On
c1'IIIy mOdels back 011 the cable ad,ustment and unhook the clevis . On latcr models remove the split pin and withdraw the clevis pin. 3 On early models, unscrew the locknut and adjustme nt nut hom the rOlll end 01 Ihe cable. disconnect the cable Irom Ihe lever, and withdraw it Irom the underbody guides and pulley.
4 On l F ig. 9. 18 Handbra ko components on Iille r models (Sec 20)
•
I HaN/brake lever 2 Clevis pin lIml chi) 3 Prif!!lIfY clIble
4 Gllidc 5 Clevis {lin illld r:hiJ 6 TWf/sveISC lOti
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156 Chapter 9 Brakin g syste m
Secondary cc1ble (early models) 5 Loosen 1I1c lock.nut ~nd unscrew the adju stment ferrule from the right-hand rear clevis.
6 Remove the split pin and clevis pin securing the secanda.v caulo \0 the left-hand Icar operating le ve l. 7 htrac the clip, remove the clovis pin. and withdraw the pullcy wheel from the lever on the Ical a~le. 8 Remove Ihe cable from the lever.
Transverse rod (later models) 9 Disconne ct the cable from the righi-hand rear opCfating Icvcr by
removing the split pin and clovis pin. to Uncl.p the cable hom the 'Hlnsvcrse rod . 11 Remove Iho spli, pin and clevis pin securing the fod 10 the Icft·h~nd le;!1 operating lever . 12 Slide the transverse rod Irom the guide on the rOM axle . 13 Check thO {luide bush lor wear and dama ge and renew It il necessary by prising il oul and pressing a new bush irllo POSilioll.
All models 14 Refining is a r e versa' of removal. but lubr icllto the lin kage as )scflhed in Section 2, and atljl' stthe cable as (fescri bed in Section 18.
21 VilCUUrll sorvo unit -dosCrilHion
A vacuum servo unit is linod Into the lir,lk e hydrallirc cil cu il. 111 series with I he 111,1S ler cylinde f. to provide assiswnco to the dllver whlln Ihe brake pedal is depressed . Thi s reduces the eHolI le{luired try the driller to oper,lIe the brakes, under all brak ing condi tions .
This unit operates by vacuum, obtained from Ihe indu ction mnni rold and comprises basicall y iI booster diilphragnl and check lIallle . The servo unit and hydraulic master cylinder are connected
t o gether so that th e serllO unit piston rod acts as the master cylrnder pUShrod. The driller's b rilking ellon is trilnsmitted through allot her PIi ShlOd 10 the serllO unit piston and ils built-in COmrol system . The scrllo unll pislon docs not fit tightly inro the cylinder. but has a strong ,lltl flhril!Jlllto ke el) liS edges in COllst ilnt COntaCI with I he cylinder Willi_
23 rilult diagnosis -hrilking system
~ylllptom
-'ceSSllle ped,,1 u;tllel
nrakcs pull 10 ono Side
Or;tke ludder
E~cessive eHor l to stop car
so ensuring an i1inigh t seal between the two parts, The fo rward
chamber is held undelllaCUUm condi tions cleilted in the inle t manifold of the engine and during periods when the brake pedill is not in use, the controls open a passtlge 10 the rear ch ambe ., so placing it under lIacuum conditions as well. When the b.ake pedal is dep.essed. the lIacuum pass.Jge to the rear chamber is CUI oH and the chamber expos ed to atmospheric pressure. The consequent rush 01 ail pushes
the servo piston lorward in tile lIacuum chamber and operates the main push rod to the m.Jster cylindcl. The controls are designed so that assistance is given under all condllions. When the brakes are 1'101 requ ired, vacuum in the rear chamuer i s .e -es tabl ished when the br.Jke ped.J1 is released . All air Irom the atmosphe.e entering tho rear ch.Jmbe. is passed through II sma ll air trlter. Und er normal opcr.Jting cond itions tho IIflC(IUm serllO unit is lIery relraule and does not require ollerhaul e~cepl at IIcry high mile,1geS. In this case it is far bcner 1 0 o bta in a serllice e~hange uni l. r,1the, than rcp;ti . the o,igi'lo11 unit . Although inlernal components we,e once .Jv'lIlaule 10 ' ovcrhauling purposes this service has no w been
d,scont,nue(t .
22 Vacuulll servo unit _ remOlla l MId re filtillg
I RemOIlO the master cylinder as desc.ihed In Section 10. 2 D,scolllwc l thc vacuum hose from the non·return lIalve on the serllo \lI1it. 3 Work i,,!) insido thc cal. remOlle th e lower l;t cia panel below the stccring column. 4 E~tractlhc clip and l)ul1 outlho clellis pin attaching Ihe push.od to the l ootu .ake ped;t!. 5 Unsc.ew the nuts securing thc mount ing b.ack.et to the bulkhead.
then withdraw thc serllo unit and bracket from the engine COlllp,lJtlnen t, 6 UnSClew th e nuts ar1(1 serlar,lle the braket 110m the SCIIIO uni, . 7 netrning IS;t rell e.sal 0 1 remOllal w ith leference .Jlso 10 Section 1 0 when retrumg Ihe master cylrnder.
Renson(s)
RC.Jr blake self adju sting mechanism faulty All i n hydrilulic system
WOIll or cont,llllina led /rnin{Js Seized Caliper or wheel cy linde r
E~cessille run-out or distortion of discs o. drums
Worn Of cont aminated linings Brake backplate or caliper l oose WOIll suspensio n bailloints
SerllO unit faulty
Worn or conwmin.Jted linings
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rhapter 10 Suspension and steering
F Specificatio n s
Front suspension
Rear suspension
, . , enflg gear (manual) Type ................... ....................•................ Steeling whecl turns (lock to lock) .. . LUbrican t type ............. ................. ...... . lUbricant capacity _ ............................. .
" G 3 ,
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Powel stCCIlIlg Ilump .. remOllal ,111(1 fcllting RCiU leill SI)II119 . emoval. bush renewal .1nd Iclottlng Flo;"), shock iJbSOfOO' removal ,m(/ felUtlng , ............... , Rein sl ROlltlllc m"IIH ennncc .
Steering column -rCmov Slecrong gear (manual) -overhaul and adJustmcn t .. Steeling ge'lf (manu"l) -removal and relrn ing •...•.•...
Steeling wheel -rCfllov Track rod and baliJoll1l -renewal
Wlleels nlld lyres -uencrill CilfC and maintenance ...................... .
17 10 9
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Independent. MacPherson strutS with Integral telescopic shock
ab sorbers Seml·elllpliC leaf springs with flgld and stabiliser bar
Rack and
pinion 3.36 SAE 90 EP gea r oil 0.15 IlIre (026 pint)
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)8 Chapter 10 Suspension and steering
Power steerin g gear Type .. Steer ing wheel turns (lock to lock) lubrican t Iype, Lubricant capacity . Fluid Iype .
Fluid cilpacily: Sepilrilte reservoir . Integli!1 reservoir .
Front wheel alignment C",nbc, M;lXll11um dlffcrence side \0 side C -yres SllC . <;JSsu,es Illl/m' (~(Jflclll'). 185170HR13: Up to 3 persons . More than 3 persons. 1 B5170VR13: Up to 3 persons . More \h,1I1 3 persons. 205/60VR 13: Up \0 3 persons . More (h,m 3 persons .
195/50VR15: Up 10 3 pe.sons . Morc th(ln 3 persons.
Torque wrench settings Fran! SIIS{!cl!siotJ Stlut upper 1110untrng . P,ston rod nut Suspen Sion ')~",{Jont St;rhiliscr birr mount"'lt . Stab iliser h;rr to track control ,)In,
Track cOIHlol ~rrn p,vot
,H'o1( slIspCIlsion od abso,bcr lower mountH'g .ock absorber upper mounting Stabillser bar to axle .. St;rl.lIlIscr har 10 underbody
U ·bol . Sprinu I.ont mount"'g . Spring rear sh;rckle
SINNing Steering gear (m~nual) Track rod end uall,oint Coupling shaft to pinion. Coupling shah t o column . Steering wheel.
Steering column.
Roa(/wiJec/s Wheel nuts/holts: Conicall;rce . FI(lt face.
General description
, -'The flonl suspension is of Independen t MacPherson Strut Iype incorpotating inleglal telescopic shock ~bsorbers and a stabilisel b~r. The ,eal suspens ion is o f semi ellip tic leaf spring·with· 'l ive ' axle Hydrau
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ic assisted rack tlnd pinion 3.25 SAE 40 oil 0.20 litre (0.35 pint) AulOm 2.2 litre {3.9 pint} 0.5 lure (0.9 pinl)
1- 0 ' 30' I" O· I l' O' O ' 45' 01070 nun (0 !O 0 28 ",)
185170HR13. 185/70VRI3. 205/60VR13 o. 195f50VR15 Front Rear
23(1.6) 23 (1 6) 28 (20) 28 (20)
2<1 (1 7) 28 (2.0) 28 (20) 32 (22)
28 (20) 28 (2.0) 32 (22) 32 (22)
26 (1 8) 26 (1.8) 32 (2 2)
32 (22)
N'H Ibl It
20 to 2<1 151018 40 to 45
30 to 33 <11 to <18 30 to 35
28 to 33 21 to 211 21 to 61 15 to <15 25 to 30 18 to 22
53 to 63 39 to 11 13 27 to 33 20 to 2<1 40 to 50 301037 35 to 41 26 to 30 25 to 36 181027 35 to <11 26 to 30 11 to 14 8 to 10
20 to 24 15 to 18 24 to 30 18 to 22 16 to 20
12 to 15 231030 17 to 22 27 to 34 20 to 25 17 to 20 13 to 15
85 to 115 63 to 85
115 to 140 85 to 103
type, incorporating telescopic shock absorbers and ;l stabdiser bill. The steering is of rack and pinion type, but may be either m(lnual or power·assisted . The steering wheel incorporates 11 convoluted cam which is designed to collapse rn the event 01 (In accident to prevent
injur y to Ihe driver. It is not reco mmended that the power steering gear is dismantled on Ihis work is best entrusted to a specialist.
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Fig . 10.1 Front suspension and steering components (Soc 1)
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