timing off?
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raceguy20
timing off?
hi guys i have a 1981 fiat spider 2000 and we had a valve job done and we put a new timing belt on it and you put the plug wires on the way the cap says and it starts but it does not rev up but when you unhook the number two cylinder plug wire it revs up to about 2500 rpm so i don't know what it could be
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carl55
Re: timing off?
Your plug wires could be connected in the wrong order. 1-3-4-2
Also you set your timing on no. 4 cylinder
Also you set your timing on no. 4 cylinder
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raceguy20
Re: timing off?
it is set at number 4 cylinder and it is 1342 and i dont know if this matters but the guy at the machine shop shaved the head and said to retard or advance (i cant remember) the timing because it was shaved so much
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carl55
Re: timing off?
If he shaved enough off to change the timing then you will probably have to use adjustable cam sprockets.
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So Cal Mark
Re: timing off?
the machinist could have been suggesting to retard the ignition timing to prevent detonation. What clearances do you have the valves set at?
Ignition timing can be checked on either 1 or 4, doesn't matter which.
Ignition timing can be checked on either 1 or 4, doesn't matter which.
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raceguy20
Re: timing off?
when cold the valve clearance is about 1 thousandths above what it should be
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carl55
Re: timing off?
Yes to what Mark said. I should have said when you install the distributor it should be at no. 4.