1987 924s replaced intake manifold gaskets per minor vacuum leak. Ran fine for 40k miles. Since i put it back together it will not not start? There are a couple teeth missing off timing belt. A mechanic told me it jumped time and huge repair bill because a couple teeth missing off of timing belt? But it ran fine prior to manifold gasket job? Does a couple teeth missing off timing belt mean major trouble for sure??

 

Are you using correct definition? A couple is 2. Is it actually 2 or is it more. If it's 2 I can't imagine it did any harm but the easiest way to check is a compression test. I would be careful tho, bc if you finish the belt off during a compression test, then you have the major trouble your speaking of for sure . If it were me, I'd change the belts prior to testing, it's easy to see if it jumped or not by getting it to TDC and checking marks, refer to a manual or search the timing marks

 

Two is all i could see and they were not close or side by side

 

If they are not side by side then It only jumped a max of one tooth, I would have a Trustworthy shop do the belts if your not capable, I'd caution against trying to start it if the belt is that bad, Take it to someone that is honest and not hurting for work enough to tell you that the head needs rebuilt if it doesn't

My guess is that if this happened right after a manifold job, that timing isn't your issue

 

It ran fine for 40k miles since when? Since the last timing belt? Since the manifold gasket was replaced? Before the manifold gasket was replaced?

I wouldn't even do a compression test... I'd turn it over by hand to TDC and see where the camshaft mark is. *If* it's in the right place, then I'd do a compression test.

I know I'm conservative on this, but 3 years or 30k miles is a good timing belt interval.

 

...and you are saying you saw this and didn't change it?

...or it could have jumped one tooth per revolution.


Good advise, but I would still change the belt before doing a compression check, why take a chance with the old belt, it's obviously badly degraded.

 

There is enough wrap on the cogs that one missing tooth shouldn't make the belt slip. You would need to be missing several side by side to slip.

 

Was running the car for 40k prior to changing the intake manifold gaskets.when done changing gaskets.crank no start.that is when i discovered 2 teeth off timing belt

 

after 10 or 12 years (the teeth) flake off them things.

 

There's no way it slipped once per revolution without the car even starting with 2 teeth missing at different places. Either way, it's easy to check

 

see post providing my advice on the subject in the other thread you started on this exact subject. You will get better advice if you only start one thread per subject. And, yes, you are 100% foolish if you don't fix this immediately and hope you still have compression. If you don't, a valve job is a grand if you do your own labor. if you cant afford that, you now own a parts car. take it apart and sell it piece by piece and be more alert next time.

 

thank you all for your input.i will let you know the outcome hopeful later today

 

Other cars beckon.

 

ggrecian is way ahead of this guy (I hope!)
http://mustangforums.com/forum/5-0l-...-this-car.html

 

gee thanks.i guess you are laughing at my expense. Logic is.the car ran fine with a little misfire due to vacuum leak. Fixed the vacuum leak. Now crank no start. In trouble shooting found a couple teeth missing off the timing belt. Asked a question about this and possible link to crank no start. By no means is that moronic.