Technical cambelt tmiing not quite right?

[Sir16v]

thought punto section may be useful as its mk1 sporting 16v ive dropped into my cinq,

having a issue with timing,lock the cam,line pistons 1 and 2 with eachover using locking tools i own,yet when this is done i cant turn engine by hand,had it almost running of two cylinders or three by the sounds of it lost my place again and i cant get it going,any thought or tips that may be useful?

 

[fingers99]

Something is wrong. (Assuming you mean "can't turn the engine over by hand, all sparkies (and locking tools) out".)

Compression test, dry and wet.

 

[Sir16v]

dont have a compression tester :/ all tools out got it turning by hand and then starter no issue just not firing and still have fuel and spark

 

[fingers99]

Did you remove the alternator pulley?

Not looked closely at the 16v, but the 8v has a pip on the crank pulley which must align with a hole on the alt pulley. If those are fitted up wrong (and I suspect that the 16v uses a similar system), you'll get fuel (past the injectors) and a spark, but the spark will be 120 degrees out, and the engine will never, ever fire.

It's -- by a long way -- the most common "car won't start" after rebuild issue on the FIRE lumps.

 

[Sir16v]

alternator belt was of to be sure alternator wasnt seized,all posts ive searched show got to have timing tools and everyones car seems to start after,no marks on 16v engines :/

thought punto section would have a clue as its from a mk1 sporting

 

[fingers99]

Not the belt, the pulley on the end of the crankshaft.

Mk1 Puntistas are either asleep, watching football, or at Stanni!

 

[oldhammer]

Did you remove the alternator pulley?

Not looked closely at the 16v, but the 8v has a pip on the crank pulley which must align with a hole on the alt pulley. If those are fitted up wrong (and I suspect that the 16v uses a similar system), you'll get fuel (past the injectors) and a spark, but the spark will be 120 degrees out, and the engine will never, ever fire.

It's -- by a long way -- the most common "car won't start" after rebuild issue on the FIRE lumps.

(Not looked closely at the 16v, but the 8v has a pip on the crank pulley which must align with a hole on the alt pulley.)

yes 16v has this too,

 

[oldhammer]

was pistons 1&2 at MDC when you locked cams off

you can tell by pip on crank if timing is out .. if pip is pointing to cranksensor
its miles out,

 

[mrcinquecento]

When timing the engine, make sure that when you are setting the pistons to mid stroke (1 and 2 level with timing rods), cylinder one is on the down stroke.

 

[blu73]

I was thinking about this for you last night... And in my memory there is 2 points you can lock the cams but one 1 point you can lock them both at the same time - so make sure you drop the inlet mani off and lock both cams.

I have only done this once but how i remember doing it was the as above, the piston levels should be the same with 1 on the downstoke. With both cams locked and the crank in correct position you slacken off the top pulley so it freely rotates without turning the cams before you stick the belt on - this means when you tension the belt the top pulley rotates a bit but doesn't move the cams. Then tighten up the pulley again, remove the cam lockers and turn engine over by hand, at least a couple of full rotations and then check the marks on the tensioner are right.