1.
Inspect the cam height.
Using a micrometer, measure the cam height.
Cam height
Intake : 44.15mm (1.7382in)
Exhaust : 43.55mm (1.7146in)
If the cam lobe height is less than specified, replace the camshaft.
Inspect the cam height.
Using a micrometer, measure the cam height.
Cam height
Intake : 44.15mm (1.7382in)
Exhaust : 43.55mm (1.7146in)
If the cam lobe height is less than specified, replace the camshaft.
Check the cranshaft journal for wear.
If the journal is worn excessively, replace the camshaft.
Inspect the camshaft journal clearance.
Clean the bearing caps and camshaft journals.
Place the camshafts on the cylinder head.
Lay a strip of plastigage across each of the camshaft journal.
Install the bearing caps and tighten the bolts with specified torque.
Tightening torque
1st step
M6 bolt : 5.9 N.m (0.6 kgf.m, 4.3 lb-ft)
M8 bolt : 9.8 N.m (1.0 kgf.m, 7.2 lb-ft)
2nd step
M6 bolts :
11.8 ~ 13.7N.m (1.2 ~ 1.4kgf.m, 8.7 ~ 10.1lb-ft)
M8 bolts :
18.6 ~ 22.6N.m (1.9 ~ 2.3kgf.m, 13.7 ~ 16.6lb-ft)
Do not turn the camshaft.
Remove the bearing caps.
Measure the plastigage at its widest point.
Bearing oil clearance
Standard :
0.027 ~ 0.058mm (0.0011 ~ 0.0023in)
Limit : 0.1mm ( 0.0039in)
If the oil clearance is greater than specified, replace the camshaft.
If necessary, replace the bearing caps and cylinder head as a set.
Inspect the camshaft end play.
Install the camshafts.
Using a dial indicator, measure the end play while moving the camshaft back and forth.
Camshaft end play
Standard : 0.1 ~ 0.2mm (0.0039 ~ 0.0079in)
If the end play is greater than specified, replace the camshaft.
If necessary, replace the bearing caps and cylinder head as a set.
Remove the camshafts.
