Caterpillar C317 — Valve And Injector Adjustments
Adjustments · Valves and unit injectors
For the Caterpillar C317, from the Caterpillar service manual.
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Procedure
- Make all adjustments with the engine stopped and cold.
- Set Intake Valves to 0.015 in. (0.38 mm).
- Set Exhaust Valves to 0.025 in. (0.64 mm).
- Set Unit Injectors to Zero Clearance plus 1/2 turn (180 deg.).
- Follow the sequence table; rotate engine 360 deg. and adjust the remaining valves and injectors.
Tools required
- Feeler gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Intake 0.015 in. (0.38 mm)
- Exhaust 0.025 in. (0.64 mm)
- Injectors zero clearance plus 1/2 turn (180 deg.)
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.