S15/T15 2WD Jimmy L4-151 2.5L (1985)
Camshaft: Service and Repair
Camshaft Removal/Installation
Removal
1.
Disconnect battery ground cable and drain cooling system.
2.
Remove side cover as described under ``Side Cover, Replace.''
3.
Disconnect power steering reservoir and set aside, then remove upper fan shroud, drive belts, fan and pulley.
4.
Remove crankshaft pulley and hub.
5.
Remove front cover.
6.
Rotate crankshaft until timing marks on crank and camshaft timing gears are aligned.
7.
Remove distributor cap and plug wire assembly, mark position of rotor and distributor body, disconnect electrical connectors and remove
distributor.
8.
Remove oil pump driveshaft cover and driveshaft.
9.
Remove air cleaner and EGR valve.
10.
Disconnect vacuum hoses at intake manifold and thermostat housing, then remove rocker cover.
11.
Remove valve lifters as described under ``Hydraulic Roller Valve Lifters.''
12.
Disconnect hoses and transmission cooler lines from radiator, as equipped, plug cooler lines, then remove radiator.
13.
On models equipped with A/C, proceed as follows:
a. Remove A/C condenser baffles.
b. Remove condenser mounting bolts, raise condenser to provide clearance for camshaft removal and block in position. Care must be taken
not to bend or twist condenser fittings when repositioning condenser.
14.
On all models, remove headlamp bezel, grille and bumper filler panel.
15.
Remove bolts securing camshaft thrust plate, then withdraw camshaft from engine, taking care not to damage cam bearings.
16.
Inspect timing gear on crankshaft and replace as needed.
Installation
1.
Coat camshaft journals and lobes with suitable assembly lubricant.
2.
Insert camshaft into bearing bores, taking care not to damage bearings.
3.
Rotate crankshaft and/or camshaft as needed to ensure stamped timing marks are aligned when camshaft is fully seated in block.
4.
Install thrust plate/retainer bolts, and torque bolts to 75 inch lbs.
5.
Align and install front cover assembly as outlined in ``Front Cover, Replace.''
6.
Reverse remaining procedure to complete installation. With cam and crankshaft timing gear marks aligned, engine should be in number 4
cylinder firing position and distributor can be indexed to marks made during removal procedure. However, if crankshaft is rotated
during reassembly, rotate crankshaft until engine is in firing position for number 1 cylinder, with timing mark on balancer indexed at
TDC on timing pad, then install distributor with body in original position but with rotor arm pointing toward number 1 cylinder spark
plug contact in cap.
