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Fulvia 3 Not starting

Posted: 22 Apr 2016, 09:03
by foggy
can anyone give me some ideas? Huib?
I have just removed the engine, removed the front cover and replaced the oil seal, I put it all back together and re fitted the engine and now it won't start, it is back firing when turning over and I did not remove the distributor, only the cap. I've checked the cam timing which is correct and removed the distributor and re set the timing and it still won't start, still back firing and spitting through the carbs with flames so definitely a timing issue? all the leads are correct 1-4-3-2 points gap correct .45mm I can't see any cracks in the cap or anything broken or missing and I'm now struggling for ideas?
I had to remove the oil pump and fuel pump to get the front cover off and when I put it back the fuel pump now doesn't work so I've used an electric one with 3psi?
The car was running before I removed the engine which is even more frustrating!
Thanks,
Tony.

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 09:30
by Huib
Indeed. Most probably timing issue.

The leads should be 1 - 3 - 4 - 2 to start with.

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 10:09
by foggy
sorry, my typo error, they are 1-3-4-2

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 10:21
by Huib
Well. Carefully check timing again.

Take rocker cover off. Put fly wheel on igition mark. Feel if rockers on #1 can be moved or on #4.

If you can move rockers on #1 the finger of rotor should point roughly down the side of the engine which corresponds with the terminal to which the lead for #1 is connected.

If you can move rockers on #2 the finger of rotor should point upward which corresponds with the terminal to which the lead for #4 is connected.

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 10:27
by foggy
Yes, had tdc no.1 with cam marks aligned and finger point at no.1, all lined up on flywheel with 1/4 against 8, it is all lined up perfectly.....

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 10:41
by Andrea Nistri
This is often the result of the distributor being 180 degree out. I don't know how it could have happened but it looks a likely cause, Andrea

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 12:45
by foggy
Yes, it's definitely ignition timing but I can't work out what is wrong? I will go back to it tonight and start again.

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 13:07
by Huib
A bad / intermittent electrical contact somewhere functions sort of as points opening and closing.

Years ago there was a bad batch of points on the market. The spring which functions as conductor was riveted to the moving arm. The riveting was done badly causing intermittent contact.

Re: Fulvia 3 Not starting

Posted: 22 Apr 2016, 14:49
by foggy
This is what I am thinking Huib but I can't think what wire would make it backfire, it is spitting back flames through the carbs as well so it is igniting when the inlet vale is open? it's definitely timing but it is all correct and it was running before I took it apart? also mechanical fuel pump not working now? how can I put that back together wrong? I have rebuilt 100's of Fulvia engines and can't ever remember a problem like this? :X

Re: Fulvia 3 Not starting

Posted: 23 Apr 2016, 22:06
by foggy
180 degrees out!! how did I do that? ?tt?