Isuzu — Inspection/adjustment of valve clearance
Adjustments · Valve train / rocker arm
From a Isuzu service manual — check it applies to your exact model before use.
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Procedure
- Remove fuel injector harness, leak off hose and cylinder head cover
- Rotate crankshaft to No.1 cylinder compression TDC
- Insert 0.15 mm thickness gauge between rocker arm roller and camshaft
- Tighten adjusting screw until gauge movement becomes tight, then fasten nut
- Adjust per cylinder table for No.1 and No.4 compression TDC
Tools required
- Valve clearance adjust nut wrench 5-8840-2822-0 Amazon
- 0.15 mm thickness gauge Amazon
- Screwdriver Amazon
- Ring spanner Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Valve clearance intake 0.15 mm (0.006 in) cold
- Valve clearance exhaust 0.15 mm (0.006 in) cold
- Rocker arm adjustment screw nut 18 N·m
Source: Isuzu 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.