Engine Timing

NDTrav · Post by **NDTrav** » Mon May 11, 2015 10:42 am

So I have an issue. When timing the cams, crank, aux, I get them all lined up and or put the belt on then I JUST about 2 full turns on it when it I am unable to turn it any further. I've tried several times. In my manual all it says is that if it doesn't work then the belt is put on wrong and to try again.. I really do not believe this to be the case.

It is freshly professionally rebuilt. They stopped assembly at the head because they didn't have the tappets. Thats where I started the assembly and now I'm stuck. Any ideas?

wizard124 · Post by **wizard124** » Mon May 11, 2015 11:33 am

Things to check:

Aux pulley timing hole at about 1 o'clock at TDC?
Are the cam pulleys reversed?

What kind of head work was done? Is there interference between valves and pistons?

azruss · Post by **azruss** » Mon May 11, 2015 11:34 am

take a close look at the aux shaft timing.

76was124 · Post by **76was124** » Mon May 11, 2015 7:15 pm

Nice pictures courtesy RRoller in link below showing how to check Aux shaft position as stated by previous posts.
http://www.fiatspider.com/f08/viewtopic ... ng#p147189

zachmac · Post by **zachmac** » Tue May 12, 2015 12:41 pm

Definitely sounds like either the fuel pump lobe on the aux shaft hitting #2 rod cap or a valve contacting a piston. When it won't turn any further I assume you can crank it backwards for almost three revolutions before the same thing happens the other direction? Check aux shaft alignment first, after that it may be cams / valve lift. Did you reinstall the cams? Are you sure you have the cam gears on the correct sides, exhaust and intake wheels are NOT the same. Also, did you set up cold valve lash to spec before trying to time / install the belt?

Engine Timing

Engine Timing

Re: Engine Timing

Re: Engine Timing

Re: Engine Timing

Re: Engine Timing