Service Manual

G210–2&G210–4ValveSpringInspection(continued)
g338829
Figure174
2.Inspectthevalvespringforbentcoils(thespringshouldstandstraight).
3.Cleanandinspectthespringretainers.Replaceifdamaged.
G210–2&G210–4ValveSeatReconditioning
1.Usinga45–46ºcutter,removeenoughmaterialtoproduceasmooth,
concentricseat.Followthevalveseatcuttermanufacturer’sinstructions.
Note:Alwaysturnthecutterclockwise.Continuetoturnthecutterwhile
liftingfromthevalveseat.
g338833
Figure175
2.Using30–32ºand60ºcutter,narrowandadjustthevalveseat.Thevalve
shouldcontactthemiddleofthevalveface.Ensurethewidthofthenished
valveistospecication.
Standard:0.8mm(0.0315inch)
ServiceLimit:2.0mm(0.0787inch)
3.Afterresurfacingtheseats,inspectforevenvalveseating.G210–1Valve
FaceContactT est(page7–12)
4.Replacethevalvesetifnotmakingfullcontact.
5.Repeattheprocedureontheothervalveseat.
CompressionSystem:ServiceandRepairs
Page7–30
G210EngineServiceManual
3439-732RevA