Timing belt

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nibbes123
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Your car is a: 1979 Fiat 2000
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Timing belt

Post by nibbes123 »

Can someone help me out to resolve this issue. I replaced the timing belt 1month ago , it seems to have slack between the two cam wheel , no matter how many times the engine turns. The tension-er wheel is one year old, I am really confused.

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GeorgeT
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Your car is a: 1982 Fiat 124 Spider

Re: Timing belt

Post by GeorgeT »

Two possibilities: 1. The belt is too long. 2. The tensioner pulley needs to be adjusted or the spring is bad. I would suspect #2 if the belt came from a reliable source.
coise

Re: Timing belt

Post by coise »

It´s kind of impossible to have a slack between the two cam wheel unless one tooth jumped. I would redo my cam timing and check the tensioner spring in the process.
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azruss
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Re: Timing belt

Post by azruss »

The only thing locating the 2 cams is the belt. Only adjusting the overall tension will change that. As others have said, reset your tensioner bearing.
nibbes123
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Re: Timing belt

Post by nibbes123 »

Thanks for the replies will try #2,
vandor
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Re: Timing belt

Post by vandor »

Sounds like not all the slack was taken out of the belt when it was installed. The tensioner spring is not strong enough to move the cam wheels if there is slack somewhere. One has to be sure all the slack is in the part of the belt that the tensioner rides against, then the nut bolt fixing the tensioner can be tightened.
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76was124
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Re: Timing belt

Post by 76was124 »

I remember reading a post where someone used spring clamps on the lip of each cam to hold the belt in place on each cam until you get it full installed around the tension pulley.

Also here's a thread I haven't read.....but seems pertinent to your topic. http://www.fiatspider.com/f08/viewtopic ... on#p104132
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