VALVE CLEARANCE — Adjusting (Cont'd) (Supplement-V)
EM-5029prose procedureAdjusting (Cont'd)
Valve clearance — Adjusting (continued)
- 2Place Tool KV109B0100 around camshaft as shown in figure.Be careful not to damage cam surface with Tool KV109B0100.
NEM285 - 3Rotate lever so that valve lifter is pushed down.
NEM286 - 4Remove adjusting shim using a small screwdriver and a magnetic finger.
NEM287 - 5Determine replacement adjusting shim size using following formula.Using a micrometer determine thickness of removed shim.Calculate thickness of new adjusting shim so valve clearance comes within specified values.R = Thickness of removed shimN = Thickness of new shimM = Measured valve clearanceIntake: N = R + [M − 0.15 mm (0.006 in)]Exhaust: N = R + [M − 0.30 mm (0.012 in)]Shims are available in 59 sizes from 3.20 mm (0.126 in) to 4.90 mm (0.193 in).Select new shim with thickness as close as possible to calculated value.
SEM145D - 6Install new shim using a suitable tool.Install with the surface on which the thickness is stamped facing down.
NEM288
| Specification | Value |
|---|---|
| Shim formula — IntakeTarget intake clearance midpoint 0.15 mm | N = R + [M − 0.15 mm (0.006 in)]mm |
| Shim formula — ExhaustTarget exhaust clearance midpoint 0.30 mm | N = R + [M − 0.30 mm (0.012 in)]mm |
| Available shim range — thinnest1 of 59 sizes | 3.20 (0.126)mm (in) |
| Available shim range — thickest1 of 59 sizes | 4.90 (0.193)mm (in) |
| Available shim countStepped from 3.20 to 4.90 mm | 59sizes |
Shim formula — IntakeTarget intake clearance midpoint 0.15 mm
N = R + [M − 0.15 mm (0.006 in)]mm
Shim formula — ExhaustTarget exhaust clearance midpoint 0.30 mm
N = R + [M − 0.30 mm (0.012 in)]mm
Available shim range — thinnest1 of 59 sizes
3.20 (0.126)mm (in)
Available shim range — thickest1 of 59 sizes
4.90 (0.193)mm (in)
Available shim countStepped from 3.20 to 4.90 mm
59sizes