Iveco/FPT — Adjusting the rocker arm clearance
Adjustments · Valve train
From a Iveco/FPT service manual covering: N45, N67, NEF45 SM2. Check it applies to your exact model before use.
Applies to: Iveco/FPT N45, Iveco/FPT N67, Iveco/FPT NEF45 SM2
Procedure
- Find TDC of cylinder n.1 (unperforated part of phonic wheel uppermost).
- Adjust the clearance of cylinder n.1's valves using hex key, polygonal key and feeler gauge.
- Rotate the crankshaft as shown in the firing-order table to adjust the remaining cylinders.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- intake valves: 0.25 ± 0.05 mm
- exhaust valves: 0.50 ± 0.05 mm
Source: Iveco/FPT 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.