Chapter 10 Suspension and steering 171
19 4C Removinu the top steering column Shroud 19 G lunitlon SWitch ,1nd wirlllU (A). also COllll'lII upper mOlUllnl!J holt (0) 19.7 Removing the steering column uppcr mounlul(J holt (arrowed)
'5 Secure Ihe SIt:(;(1I1(1 lock 10 Ihe colulIlIl ,lIal ~heil' the h eads I,om ,he m:w holt~ 11) U~e the stecrin\J lock to locate the shaft in Ihe column. then III Ihe )ct,on mdlGltor OICIlJalinn GUll alld Stecrmn wheel. CtlCC~ that Ihe ruadwheels afC st,lIln the 5trai\jht·ahead P05,110l1. 17 Install the Stce!Ul(J column orommet Oil the lowm en(t. 18 LOCille the column assembly ami sr:c",e It wrth the Iwo mOllrlllng bolts. 19 The ((,milliuler of the rellllUI\J proccrl",e ,~ th" reverSI! of lhe removill procedure,
20 F ront wheel alignment and steering ilngles
Accurate front whcel alignment IS essential lor good stoer"'g and lyre WOiJr. Scion) cons,dering the steering angle. check Ihat Ihe tyres
are correctly inflated. tllnt the front wheel s arc nOI IJlJckled. the hub hea"nns arc not worn o r mcorrectly adjusted und thilt the sleflr"'g IlIlkaUfl is in IJood order. wllhout slackness or we,ll at thu Jo,nls
2 WIH;f; 1 "I'!JIununt co"s'st~ 01 loUl I"ctors, C;"lliJcr_ IS the ""Ule "t wilich the front whet:ls ,lie sci from Ihe
verllcal when v'ewud 100'" the IrOnt 01 the c"r 1'0sIt,ve camber 's Ihe .. mount (111 de\J'ee~) th"t til() whucls ,ue toited outwards at the lOp 100'"
thu vert,c;,1
Castor. ,~tho i"'~Jlu between the SIl,erlIlU ,,~,s OIrld.1 v..,'I,e.11 lone len viewud IrOIll p,lch ~,dfl 01 the C,lI 1'0~;llIve castor 's when the ~tcermu ",x,s 'S ",cloned rUiHw,,,ds ill the top jStcerinu ilxis inclin,,{ion 's lhe illl\Jle. when VIewed frOI11 the .It 01 the Cilr. bel ween the verltcal and "n 1Il'''U>I1.1ry hne drawn betwCl)n the upper ilnd lower suspensIon strut p,vots, Toe-i n IS the ilmoUl,t by wh,ch tlte dl5li"'Ce helween the frOrlt
IIlsuJu ed\Je~ 01 the rOildwhecls ('He,lsu1ed m huh heiuht) ,s less thiln lhe d'sWrlCI) ",e
5 PI"ce the Cilr on level ground WIth the wheels 111 the sualghl·uheild pos' lion,
6
Oht"in or m"ke
ne:w components have heen I'lted. set the ro"dwheels ,n the stral\jht·ilheil(f p05otrOn and also cent",lrse the steering wheel. AdJ"st the len\Jths of the track rods hy lllll1ing tltem so th,,! the track rod end IJ,litJoinl studs w,11 drop eils,ly onlO the eyes of the steer inu ilrlllS Measllfe the dislilllces between the centres of the hilllfOllllS illld the grooves on Ihe inner ends of the track rods and ildjust. ,r neceSSilry. so Ihiltthey me equ,ll Thl~ is all lII,t,,,1 sellinlJ only and prec,se ildillstmellt mu~t he carried oul as descrrhed earheL
21 Wheels and lyres -uonNal care and milintenl1nce
Wheels ilild tyre~ shOuld give no reill problems in usc provided thm ,1 close eye IS kept on Ihe", with re\janlto excessive weilr or dilmilge To llns end. the following pOllltS should he noted Ensure thm lyre pressures ",e checked re\Jularly ami ma,ntallled correctly. Checklllg should be c,Hried out woth the tyres cold alld nOI IIlHlledialely alter the vehicle hilS heen "I usc. II the pressures are checked w'th the tyres hOI. iln ap(l,Hently hi\jh readmlJ w,1l be ohw'lled OWlnH to heilt expJnsron. Under n<) Cllcumst"Iucs.
eSpecii\lIy 111 the s,dewalls Remove any na,ls or stones ell\bedded 111 the tread hefore they penetr"te lhe tyre 10 cnuse dcfliltlon If remov,,1 {)i
dilll1i1ged by ·kerbing· wh,lst par king. and simililrly stee l wheels may hecome denIed or buckled, Renewnl of the wheel rs very ohenthe only course of rellled'ill ilct,on poss,ble, The balance 01 each wheel Jnd tyre ilssembly should be mainta,ned to ilvoid excess,ve weilr, not only 10 the tyres but illso to the s teering and suspension components. Wheel imbillilnce 's normilily S'\ln, f,ed by v,i)rilllOn through the veillcle·s bodyshell. illthouUh III many c~ses it IS piullcularly nOliceahle Ihrouoh the steenng whuel. Conversely. it ~hould bc noted thilt weilr o r dilnlaUc 111 suspellS IOll or steer ing components may '.:ause e~ceSSlve tyre wear. Out·of·round or out-of· t!Ue lyres, damaged wheels and wheel !leafing weilf/ nlilladJustntent also lilll into th
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