air bleeding FORD CAPRI 1974 Workshop Manual
Page 153 of 205
152 Chapter 9 Braking system
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OIOIN -.1
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Fig. 9 .12 Modified screVlldrivcr f o r CC01t;llisillg {he IHcss urc different;", switch pisto n (SIlC 15 )
15 Hydraulic systerll -hfccdiliU
The correct functioning 01 the bfl,kc hyd,~ulo<.: sy Stem IS only possible aile! removal of all ai, from the components ilnd CIICUI1. Ihis is ilchieved by bleeding the system. Note \h<ll only etc;on IInus.:d tUilke fluid, which hilS renlilincd unshaken 10/ at least 24 hours, l11uSl he used. 2 IIlhcf(l is any POSSibIlity 01 jncolfI~cl flUId havU\g bee n usc\ 1 III the sys tem. the brilkc hnes "nd component s must be compll!lely flushed wllh IInconl,lrll'Jlilled fluid ,mel new seals hned \0 the componCllIs. 3 Never reuse lJ<ilke fluid which hi'S been bled Irom Ihe syswrn . " DUJmU tlHI prm:edure. do nul illiow Ihe level of br(lke fluid 10 lhup IIlure th,]I hilifway Ilown the .ese.voll 5 Uclorl! Sla rtlnu wmk. chock Ih<1l illl I)II)OS imd hoses ale socllfe. UIHons IIUht allli bleed screws closed. T"ke U,eal Cilre not to .. lIuw hr"ke flUId to come inlO COn1ilCt wllh the cal pil;ntwork, othe.wlse the ~h WIll 1)0 scrlously do1"'ilued . W<lsh 011 any spilled lIuld .Icrlr;llely wilh cold wawr. G If the hydraulic SYSlem h<ls only heen Ihl.t;"lIy (hsconneclCd .md ~ ble l)reC"utions were laken 10 prevent fuuher loss of fluid. Ihen il shlll/id only he nccessmy 10 hleed the hfllke conce.nCl!. or Ihill pill I of the ci,cull 'downstreDrll' frorn where the work look !}Iace 7 Where a I),es su.e dlf!e,enlial SWlich is !I!wd (Section 12) it will 1)0 I1ecessnry lor an asslstanl to hold the mtemal pistun in the cen tral positIon du.ing Ihe bleeding opcf1llion. otherWise " WIll be dlfficuJ t to uelthe warning h\)htto go out ilnd stay oul A screwdllver mOdIfied as shown in Fig . 9.12 should lJe inselted through thO baso 01 the hydrauliC body after removing the ,ubber cover.
8 II possible, one 01 the DIY brake bleedIng k'ls avaIlable frorn ncccssory shops shoul d be used, paltlcul1\lly tho typo which p,essulisos the system. as they \)rea tly simphly the task and leduce the risk 01 expelled air and lIuid being drawn back rlI10 the systelli. Whell.! ono of these kilS is being used, follow Ihe milnlliacturer's instructions concerning its operiltion. 9 If a brake bleedmg ki t is nOI being used, the sys!Cm may be blcd in the COllVCntlOllill Wily ilS lollows: 10 Ohlain a cleill1 glass Iilr. a suililble lel1glh 01 pillstic or rubbe. tubin g willch IS a 1Ight fll over the bleed sc rews. a tIn of the speciflod hrake lIuld ~nd the help of an ilssis tant. 11 Depress the b.ake pedal seve'<lltimes to dlssipille any vacuumlrom tho servo uni •. 12 Clean Iho area around the bleed screw ilild remove Ihe rubbor dust COlD (photo). If the complele ~ystem is 10 he bled. stalt at the 1I{JllI·hand Iront bl(lke 1: I the tuhe to the bleed screw, inse" Ille 111)0 end of the tube into
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15 12 Ruhhe. (i'lsi C,lP 011 Ironi brake Cilllper
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J;II ill111 porn 111 sull,c.(,:nt hrilkc lIuld 10 keep Ihe end 0 1 Ihe tube ,"uhml!r!Jed . Opel1the IJIL'Cd screw hall a ilIOn anti hnve your ilSSlstilnt dnp,nss IIII! IHilk e pedal In the flOOr and then relColse il. Tlghton Ihe billed ~r.rew ill Ihe end 0 1 cilch downstoko to prevent Ihe e_I)OJled <IiI ;111(1 fhud lroml)Olnu drllwn IhlCk IntO the system Repeatlhe puxodure IInt,1 clean blake fluili. fICO from all buhhles, ell" be sccn emcrging hUln the rube. then hllally lighlen the bleed screw . ..,,,,ove the tuho illld ,elll the dust Cilp . Remember to check the hwke flun! level 111 the IflSCIVOII pellod,cillly and keel) II lopped tip III !lepeat Ihe procedure 011 Ihe left-hand 1,0111 "rake 1"lIowell hy Ihe Jelt-hand rca. hr;lke. Note thai there '5 110 hleed screw on the IIUhl ·h lll1( llI!ar iI'ilk,] as the flUId ,s supplred dlll:l;tlhr{lII!11i Ihe wheel ,:ylnldl!r to Ihe l"'l ·hilllll,c." h •• ,ke When cOllipleted. rec heck Iho flu.d l"vl·1 Ul the leSl!rVUIf. lUI' IIp If n(,:ccssil'y ;Inl ,01,1 the cap .
1 5 D,'press the hlake pcllal sevel,,1 I""es, It should feci 111111 <llIti free ito", 'SPUIIUIIICS5' whIch would ",lflcHte ill( IS slllI presenl 111 the
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16 Foolbrake pod,,1 -removal and .elillinll
Wo.kll1g InSide Ihe CM, ,emove the lower In c. a I","el below the 511,."," Ill!! C()IUIllIl 2 F.xlrilct the chI' ilnd pull out the clOVIS pIn "t1achlng thc servo pushrO<i 10 the 1)(1(1011 3 Unhook the rei"," Sl)ring. 1 Hemove lhe SpIIIIg c!rp and slide the pedal from the shah. 5 Clea" the cmllllOIIcnts ehen ex1lmrno them lor wea, and damage.
Th o bushes may be renewed separately if neCeSSilry by driving thel11 hom the pcdaL G Rehlllng.s a reve,sal 01 ,emoval. but lubrIcate Ihe bushes, sh<lll and devls pIn wllh a !rille grease .
17 Stop lamp switch _ removal, refilling aile! il(ljuslmenl
WOlking inSldc the car. remove the lower I"cia p"nel bolOw the slcCllng cOl ullin. 2 D,sconnoct the wiling plug, unscrew the locking nut and detach the swiech (photo).
3 Refilling is il revers<ll 01 lemov<ll, bUI adjust the Jlosition 01 Ihe switch so Ihal when Iho 100lbr;lke pedal is al Ihe reSt pOSlilon the switch is depressed hatl it s 10tal travel <1 On completioll, check Ihat the swiech operales correctly.
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Page 199 of 205
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Index
A
Accelerator cilble removal ilnd refining -14 shnft ilnd pedal removal and refining -75 Air cleaner removill Jnd ref,nrng cal buren or mod cis -68 fuel injecllon models -80
P rnator .,rushes inspecllon. removal and refilling Bosch -202 Femsa -203 Lucas - 202
dismantling and rcassembly -203
removal and refining -201 Antifreeze mixture -60 Automatic transmission descrip tion -122
B
downshift cable removal. refi11ing and adjustment -121 extension housing oil seal renewal -121 faull diagnosis -127
maintenance. routine -123
removal and refOlting -123
selector mechanism ildjustment - 126 rcmovill. overhaul ilnd refl11lng -125 speclflf:iltions -103 SI.1r1er IIlh'bilm/reVerse lamp switch remov<ll <lnd refIlling - 127 lorque wrench senings -103 'iliary (driving) light ,oIigrllnell t 212
Bilttery clrilrgmg _ 201 description and testing -200 removal and rcfll\lng -201 Big-end bearings -37. 52 Bleeding the hydr<lulic system brakes -152 power steering -168 Bodywork IJnd fittings -173 el seq Bodywork and fittings bonnet -186 bumpers -1 78
centre console -189
demister
noules reOlov<l1 and refi11ing -197
description _ 174
doms-178.180. 18210 185 face level vents removal and refItting -197 facia panel -188 fuel filler flap -188 heater -192 to 194. 196 10<ld space trim panel removal and refitting -186 -'alnlenance
) bodywork and under/rame _ 176 routine _ 116
uphOISlCry
and carpets -176 mirrors
-
192 open rem quarter glass assembly
removal and refitting -186
re~r qllMlcr trim panel removal and refitting -185 repi'lir millor damaue -178 minor damage -176 sent belts -191 seats -192 sunroof-189la 191 lailgate -180. 187. 188 torque wrench scuings -173 windscreen -180 Bodywork repair sequence (colour) -174, 175 Bonnet release c<Jble removal ilncl refitting -186 removill. reflt1ing and adjustment -186 Bml<ing systll'm -14201 seq Braking system deseriPlion -142 lilUl1 di<lgnosis -156 fOOlbrake ped .. 1 removal ')nd rel ining -152 fronl disc brakes -144,145 handtHake -153 \0 155 hydraulic system bleeding -152
p ipes <lnd hoses -151 n1<lintcnance. routine -143 n1<lSler cylinder -148. 149 presslilc uIHe"~llIial switch removal and relitting -150 pressure reducing v~lve rernov~llInd refining -151 rear drum brakes -146 10148 specif'Cil!ions -142 stop IJmp swilCh removal. refi11ing ilnd adjuSlmeJl1 -152 lorque wrench se11ings -142 vacuum servo unil -156 Bulbs. lamp 'Tenewnl -213 to 217 spcclflcntions -199 Bumpers removal and refIlling -178
c
Camshaft (3.0 litre engine) retitting -54 removal -50 Camshaft and camshaf t bearings examination and renovation 2 _8 litre engine -35
3 .0 litre engine -51 Camshah and front intermediate plate (2.8 litre engine) refilling -41 Capacities. general -6 Carburetlor (Weber) aulomat ic choke
adjustment -71 removal. overhaul and retitting -71
dismantling and reassembly -69 general -68 idling adjustment -73
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