MG MG6 Series 2011 - Page 169

EngineMechanical-1.8VCT
Engine
13.Removeanddiscardoilsealsfromcamshafts.
14.Remove16tappetsfromcylinderheadandstorein
ttedorder.Inverttappetstopreventoilloss.
15.Measuretheoutsidediameterofeachtappet.
Measurementmustbetakenhalfwayalongtappetbody.
a.T appetoutsidediameter=32.959to32.975mm.
16.Ensurethatoilholeineachtappetisclear.
17.Cleancamshaftsandcylinderheadbearingsurfaces.
18.Inspectcamshaftandreplaceifscored,pittedor
excessivelyworn.
19.PositioncamshaftsincylinderheadandplacePlastigauge
acrosseachjournal.
20.Retcamshaftcarrierandtightenboltsinsequenceto
10Nm.DONOTrotatecamshafts.
21.Progressivelyloosenbolts,removecamshaftcarrier.
22.MeasurewidestportionofPlastigaugeoneachjournal
(Refertospecication).
23.Ifclearanceisexcessive,tnewcamshaftsandrepeat
check.Ifclearanceisstillexcessiverenewcylinderhead
andcamshaftcarrierassembly.
24.Removedrivepinfromoldcamshaftandttonewwith
splittowardscentreofcamshaft.
25.Positioncylinderheadonitsexhaustmanifoldfaceand
supportonwoodenblocks.Removeinletvalveswith
cylinderheadinthisposition.
26.UsingtoolT10005compressvalvespring.
27.Remove2colletsfromvalve.
28.Releasevalvespring.
29.RemovetoolT10005.
30.Removeremainingvalvesprings,capsandvalves.Keep
Version2.0153