Crankshaft Inspection
WARNING: This page is about a different variant/trim than selected.
- Clean the crankshaft in solvent. Remove all sludge or restrictions from the oil passages.
- Dry the crankshaft and bearings with compressed air.
- Inspect the crankshaft for the following conditions:
- Crankshaft journals (1) should be smooth with no evidence of scoring or damage
- Deep grooves (2)
- Scratches or uneven wear (3)
- Pitted surfaces (4)
- Wear or damage to the thrust journal surfaces
- Scoring or damage to the rear seal surface
- Restrictions to oil passages
- Damage to threaded bolt holes
- Inspect the crankshaft pin for damage:
- Measure for proper installed height (a). Correct height should be 2.00-2.25 mm (0.078-0.088 in).
- Replace the crankshaft pin if it is damaged.
- Inspect the reluctor wheels for cracked, bent or broken teeth.
- Measure between the crankshaft shoulder and the front reluctor wheel (1).
- Measure between the gap between the front and rear reluctor wheels (2). The maximum allowable gap is 0.15 mm (0.006 in).
- Measure the crankshaft main journals and the crankpins for out-of-round and taper.
- Using a suitable fixture, support the crankshaft.
- Measure the crankshaft runout using J 7872 .
- Crankshaft runout should not exceed 0.051 mm (0.002 in).
- Inspect the crankshaft thrust wall surface (1) for wear and/or excessive runout (2). Refer to Engine Mechanical Specifications .
IMPORTANT:
Use care when handling the crankshaft. Avoid damage to the bearing surfaces.
CAUTION:
Refer to Safety Glasses Caution
in Cautions and Notices.
IMPORTANT:
The crankshaft pin is a pressed-in- place roll pin. The pin only needs to be removed from the crankshaft if the pin is damaged.
IMPORTANT:
Do NOT attempt to remove the crankshaft reluctor wheels. If the reluctor wheels are damaged and/or removed, the crankshaft must be replaced.