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richard111 · 15-05-2008

Hi,

hate to say it but agree it could be the cam timing. Am in the process of replacing the belt on my 1995 164 as something made contact with the belt, thankfully without snapping it but caused it to jump a tooth - on the rear bank, of course. Runs a bit better when cold but generally a bit lumpy. The rear inlet cam jumped forward a tooth but tooth jumping can also cause it rev poorly - had a cam out by 2 or 3 teeth on my X1/9 once (Fiat made a batch with the timing mark in the wrong place!) and it just would not rev beyond 5000rpm - instead of the usual whizz round to 8000rpm (into the red but pretty indestructable engines those).
Definitely try everything else first though - changing the belt is a bit of a dog.

15-05-2008	#15 (Post Link)
richard111 Newbie Join Date: May 2008 Posts: 20 Member car: Alfa	Re: 164 3.0 v6 24v poor throttle response! Hi, hate to say it but agree it could be the cam timing. Am in the process of replacing the belt on my 1995 164 as something made contact with the belt, thankfully without snapping it but caused it to jump a tooth - on the rear bank, of course. Runs a bit better when cold but generally a bit lumpy. The rear inlet cam jumped forward a tooth but tooth jumping can also cause it rev poorly - had a cam out by 2 or 3 teeth on my X1/9 once (Fiat made a batch with the timing mark in the wrong place!) and it just would not rev beyond 5000rpm - instead of the usual whizz round to 8000rpm (into the red but pretty indestructable engines those). Definitely try everything else first though - changing the belt is a bit of a dog.