Engine Knock

General chat about the car goes in here.
Kjay
Posts: 23
Joined: Tue Feb 22, 2022 10:19 pm
Your car is a: 1978 Fiat 124 Spider

Re: Engine Knock

Post by Kjay »

redcars wrote:Above the rear axle there is a vent valve that gets plugged up over time. It can be cleaned so as to let the tank vent.
Thanks I’ll check it out.
Kjay
Posts: 23
Joined: Tue Feb 22, 2022 10:19 pm
Your car is a: 1978 Fiat 124 Spider

Re: Engine Knock

Post by Kjay »

Going to start reassembling my engine this week. I was able to get another block with good crank, rods and pistons. New bearings, gaskets and rings came in today.
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geospider
Patron 2020
Patron 2020
Posts: 585
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: Engine Knock

Post by geospider »

You mentioned gas blowing by the needle valve. check your fuel pump pressure; if too high could cause your gas problem.. should be between 2-4 psi.
also, for kicks: check/adjust your carb float.. If you don't know age of carb; might as well rebuild with all the other work you are doing.

geo
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