Replacement of valve seats (page 2 of 2)

Make

Alfa Romeo

Model

155 Factory Service Manual

Year

1992–1998

Section

Replacement of valve seats

Engine – mechanical (V6)Replacement of valve seats · page 2 of 2

1. Withdraw the valve seat while tapping on the mandrel end protruding from the cylinder head.

1. Check that the diameter of the valve seat housing "A" is within the prescribed limits.

Valve seat housing diameter "A"
intake	42.000 to 42.025 mm
exhaust	37.000 to 37.025 mm

1. Check that the outer diameter of the replacement valve seat "B" is within the prescribed limits.

Valve seat outer diameter "B"
intake	42.065 to 42.100 mm
exhaust	37.095 to 37.111 mm

07 Engine