Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 155 Factory Service Manual (1992-1998)02 · Vehicle characteristics and maintenance
02 · Maintenance

Adjusting valve clearance - intake

Make
Alfa Romeo
Model
155 Factory Service Manual
Year
1992–1998
Section
Valve clearance check › Adjusting valve clearance - intake
Vehicle characteristics and maintenanceAdjusting valve clearance - intake · page 1 of 2
  1. To check that the reference notches on the central caps are in the correct position, remove the caps and, using tool N° 1.820.116.000 (A.4.0199) and plate N° 1.820.123.000 (A.4.0221) check the relative angular value.
Camshaft with chain tensioner being adjusted downward
Angular value of the reference notches on the camshaft caps
Intake shaft cap 5° 30'
Exhaust shaft cap 13° 15'
Tool and plate for checking angular value
  • If the reference notch is not positioned in accordance with the specified values make a correction by cutting a new notch on the cap.
  • Refit the caps and rotate the crankshaft until the reference notches on the shafts are aligned with the new notches on the relative caps.
  1. Loosen the screw securing the chain tensioner and push the chain downwards. Lock the chain in this position by re-tightening the relative screw.

Adjusting valve clearance - intake

  1. Remove the three camshaft caps from the intake side.
Engine with camshaft caps removed on intake side

Parts & tools for this job For 1992 Alfa Romeo 155

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