Timing Question

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NickFerrell

Timing Question

Post by NickFerrell »

I did my firs timing belt this weekend, and it went quite smoothly! After getting it all back together, and paying meticulous attention to having everything lined up, I started it to find that the idle was too low. Didn't quite stall, but it's darn close. It's a 1978 (made in October of 77), so I believe it's a non-interference engine (?). Any theories? I set the crank pulley to align with the longest mark on the timing cover, per my shop manual's (Haynes) instructions. Thanks
For any input!
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Kevin1
Posts: 399
Joined: Tue Feb 17, 2009 8:55 pm
Your car is a: 1980 Spider 2000 FI
Location: Maine, USA

Re: Timing Question

Post by Kevin1 »

put a socket on the crankshaft nut, and turn the engine over clockwise until the timing mark lines up with the TDC indicator again. (easier to do with the plugs removed) Double check that the camshaft marks are aligned and that one is not off by a tooth. It is easy to be off by one when everything had looked right before.
vandor
Posts: 3996
Joined: Sat May 23, 2009 1:23 pm
Your car is a: 1971 124 Spider
Location: Texas, USA

Re: Timing Question

Post by vandor »

Very likely it is an interference engine at the valves. The auxiliary shaft can always create an interference!

Likely your ignition timing is off. Adjust to ~10 BTDC (the second smaller mark) with a timing light.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
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