Caterpillar — Crankshaft Deflection
Adjustments
From a Caterpillar service manual covering: G3600, G3606, G3608, G3612, G3616. Check it applies to your exact model before use.
Applies to: Caterpillar G3606, Caterpillar G3608, Caterpillar G3612, Caterpillar G3616, Caterpillar G3606 engine, Caterpillar G3608 engine, Caterpillar G3612 engine, Caterpillar G3616 engine
Procedure
- Perform cold and hot crankshaft deflection tests.
- Place tool within 10 mm (0.39 in) of counterweight end.
- Deflection at middle section must be within +/- 0.0406 mm (0.0016 in).
- TIR must not exceed 0.08128 mm (0.0032 in).
- If exceeded, loosen mounting bolts, correct soft foot, and ensure thermal growth not constrained.
Tools required
- deflection gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- +/- 0.0406 mm
- TIR 0.08128 mm
Full service-parts list: Caterpillar G3608 →
Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.