Iveco/FPT — Check and setting of tappet clearance
Adjustments · Rocker arms / valves
From a Iveco/FPT service manual covering: GE NEF 100M, GE NEF 125M, GE NEF 130M, GE NEF 160M, GE NEF 200E, GE NEF 45M, GE NEF 60M, GE NEF 75M, GE NEF 85M, GS NEF 100M, GS NEF 125M, GS NEF 130M…. Check it applies to your exact model before use.
Applies to: Iveco/FPT GE NEF 100M, Iveco/FPT GE NEF 125M, Iveco/FPT GE NEF 130M, Iveco/FPT GE NEF 160M, Iveco/FPT GE NEF 200E, Iveco/FPT GE NEF 45M, Iveco/FPT GE NEF 60M, Iveco/FPT GE NEF 75M, Iveco/FPT GE NEF 85M, Iveco/FPT GS NEF 100M, Iveco/FPT GS NEF 125M, Iveco/FPT GS NEF 130M
Procedure
- Adjust clearance between rockers and valves using setscrew wrench, box wrench and feeler gauge.
- Intake valves must be 0.25 ± 0.05 mm and exhaust valves 0.50 ± 0.05 mm.
- Rotate drive shaft, balance cylinder 1 valves and adjust valves marked by asterisk in the table.
- For 6 cylinder engines repeat with cylinder 6 balanced.
- For 4 cylinder engines repeat with cylinder 4 balanced.
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.