Alfa Pages

Brit01 · Gold Cloverleaf Joined: 24 May 2010 Posts: 665

Always had an issue balancing one of the barrels with a higher vacuum. Air bypass screws always seem to be very unstable.

Now after removing the heads to replace tappets I see the small pin holes that connect to the oil vapor rebreather circuit. New to me.

Little brass threads that sit under the butterfly in the manifold and can affect idling if not clear.

They had substantial amounts of oil crud. This could have been affecting the vacuums of each barrel quite easily if one was blocked.
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S2 33 1988 1.7 QV
Dellorto DRLA40 (32mm venturi)

Brit01 · Gold Cloverleaf Joined: 24 May 2010 Posts: 665

BAD NEWS - FAILED TAPPET AND DAMAGED LOBE.

Now do I need to replace the camshaft or can it be reground?

Confused

Expensive... Confused

http://imageshack.us/photo/my-images/853/damagedlobe.jpg/

http://imageshack.us/photo/my-images/827/damagedtappet.jpg/
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S2 33 1988 1.7 QV
Dellorto DRLA40 (32mm venturi)