Timing mark off??

[malpaslane]

Hi Everyone,

i have a 944 2.5 1984 that has been stood for a while and after giving it a clean up, sorting out some problems and changing the belts, i have a question about the timing marks.

the question i have is that when i turn the engine over by hand acouple of times and the cam sprocket mark lines up with its mark on the housing the crankshaft mark is about 2-3mm out, but if i line the the crankshaft mark up to it,s mark and then look at the camshaft mark it,s all ok and hasn,t moved, is this right or not, belt is the right tension and the engine turns freely.

thanks
Rik

[kfanazini]

Are you looking down thu the top at the flywheel mark or looking at the mark from under the car? I found it eaiser (for me) to line up the flywheel mark from under the car.

[malpaslane]

I,m looking from above as the engine is out of the car,..

[Volhv]

I don't think the early cars had the bottom mark notched into the flywheel.
My 86 did, but I've put a 84 flywheel in, so now it does not.


How do the marks on the balance shafts look? Very slim chances for both belts to slip.

[malpaslane]

Here are some pictures of my problem, looking at it again i think i,m a tooth out on the crankshaft, would i have any valve damage after turning over by hand?

[mattdavis11]

It's fine, mine doesn't line up exactly either. If you can turn it over by hand and feel no resistance, no valve damage has been done.

[strath44]

+1 mine was the same had no probs and ran sweet

[strath44]

also i thought i was a tooth out and changed it +/- 1 and it made it much worse, how are you locking the flywheel?

[mattdavis11]

Flywheel locks mess the timing up. You certainly wouldn't use one after the crank bolt is tight.

[Volhv]

That looks about the same as mine did. I guess it all depends on the angle you look at it from. Mind you, the flywheel has a much larger diameter than the crank timing gear.

[CHICKS]

Originally Posted by mattdavis11

Flywheel locks mess the timing up. You certainly wouldn't use one after the crank bolt is tight.

Uh, say again? That's not true at all, unless I'm not understanding what you mean...

[malpaslane]

thanks guys, here,s some better pictures.

[malpaslane]

camshaft sprocket marks line up fine with the flywheel mark like this, i can move the crankshaft back so the flywheel mark is in line without the cam sprocket moving off of it,s marks...

[strath44]

Originally Posted by mattdavis11

Flywheel locks mess the timing up. You certainly wouldn't use one after the crank bolt is tight.

Eh no not true quite the contrary unless I'm miss understanding.

If the engine is out I use a starter motor out flywheel lock that bolts in place of the starter.
If the engine is in I usually put it in gear but there is a bit more free play this way.

How are you locking the flywheel? If not at all it can be a pain to align because the belts move the flywheel obv which is sort of the prob you are having!?

[malpaslane]

The engine is out of the car, so i've locked the flywheel in place with a flywheel lock though the starter hole, the mark was locked bang on the mark when the belt was fitted and the cam mark was bang on the mark, but when i turned it over by hand afew times and lined the camshaft mark back up, the flywheel mark was this far out, as i said i can move the flywheel back so it lines up and the camshaft mark doesn,t move....

[mattdavis11]

I'm just saying that when I use the flywheel lock, the timing changes a tad from TDC. Once I tighten the crank bolt, I take it off, then set the timing.

[Sherif123]

Hey guys, I'm kind of having the same issues, if anybody has experienced my situation right now anything helps, basically, timed everything bang on, once everything tight I turn the engine by hand, check marks again everything is still bang on, wich is perfect, but when I start the engine , runsss very rough, so I check the marks again after start up and the cam mark is off for some reason, to make sure belt didn't skip, did the whole process again and after start up same thing happened.. I have an 1984 944 NA BTW, thanks

[mattdavis11]

Roll cam back (counter clock wise) one tooth. This removes the slack in the belt. Rotate 2 times, set tension, done.

Mine has never lined up with a locking tool.

[Sherif123]

Yes I already know that, that's what I've been doing, the issue I'm having is after start up for some reason, once I start it then shut it off, the cam mark is way off..