Jeep Cherokee

 Service Manual

Engine » 4.0L engine » Service procedures
Fitting connecting rod bearings

INSPECTION

BEARINGS

Inspect the connecting rod bearings for scoring and bent alignment tabs (Fig. 29) (Fig. 30). Check the bearings for normal wear patterns, scoring, grooving, fatigue and pitting (Fig. 31). Replace any bearing that shows abnormal wear.

Inspect the connecting rod journals for signs of scoring, nicks and burrs.

CONNECTING RODS

Misaligned or bent connecting rods can cause abnormal wear on pistons, piston rings, cylinder walls, connecting rod bearings and crankshaft connecting rod journals. If wear patterns or damage to any of these components indicate the probability of a misaligned connecting rod, inspect it for correct rod

Valve timing

Valve service

Piston fitting

Piston ring-fitting

Fitting connecting rod bearings

Fitting crankshaft main bearings

Form-in-place gaskets

Engine performance

Honing cylinder bores

Repair damaged or worn threads

Service engine assembly (short block)

Hydrostatic lock

Engine oil service