Tribeca F6-3.6L (2008)
2) Check the journal for damage and wear. Replace if faulty.
3) Check the cutout portion used for camshaft sensor for damage. Replace if faulty.
4) Measure the outside diameter of camshaft journal. If the journal diameter is not within specification, check the oil clearance.
5) Measurement of the camshaft journal oil clearance:
(1)
Clean the bearing caps and camshaft journals.
(2)
Place the camshafts on cylinder head. (Without installing the valve rocker.)
(3)
Place a plastigauge across each camshaft journal.
(4)
Install the bearing cap.
NOTE: Do not turn the camshaft.
(5)
Remove the bearing caps.
(6)
Measure the widest point of the plastigauge on each journal. If oil clearance exceeds the standard, replace the camshaft. If necessary,
replace the camshaft caps and cylinder head as a set.
Standard. 0.037 - 0.072 mm (0.0015 - 0.0028 in)
(7)
Completely remove the plastigauge.
6) Check the cam face condition; remove the minor faults by grinding with oil stone. Measure the cam height H. If it exceeds the standard or offset
wear occurs, replace it.
Cam height H.
Standard.
Intake: 45.90 - 46.00 mm (1.8071 - 1.8110 in)
Exhaust: 44.65 - 44.75 mm (1. 7579 - 1.7618 in)
Cam base circle diameter A:
Intake: 36.0 mm (1.4173 in)
Exhaust: 36.0 mm (1.4173 in)
7) Measure the thrust clearance of camshaft with dial gauge. If the clearance exceeds the standard or offset wear occurs, replace the caps and cylinder
head as a set. If necessary, replace the camshaft.
Standard.
Intake 0.075 - 0.135 mm (0.0030 - 0.0053 in)
Exhaust 0.075 - 0.135 mm (0.0030 - 0.0053 in)
