Timing belt noise
10-03-2003, 09:39 AM
#1
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Timing belt noise
i had this problem ever since ive owned the car.the timing belt makes a ticking sound on a cold start,but after 10 mins of warming up its gone for the whole day until you turn it on in the morning again.what was the cause of this,is it a real threat to my engines life and how much to fix it.TIA
10-03-2003, 09:43 AM
#3
Got Nothin'
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I don't know about the noise. But have you ever taken your car to "air cooled? It's a Porsche only shop downtown. I used to take my car there when I lived in Honolulu.
10-03-2003, 10:42 AM
#5
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I've seen a few timing belts that were cut wrong from the sleeve. Didn't track straight on the pulleys. I ususally get another belt and don't use the wobbly one for long.
Think of a long tube that looks like the timing belt inside. Then cut a strip at the width you require for the application. Timing belt!
Think of a long tube that looks like the timing belt inside. Then cut a strip at the width you require for the application. Timing belt!
10-03-2003, 12:17 PM
#6
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Your balance shaft belt is loose!!! Get it adjusted quickly!!!!
Exactly the same thing happened on my old 84' NA. Pull the belt cover and see for your self.
HTH
Jason
Exactly the same thing happened on my old 84' NA. Pull the belt cover and see for your self.
HTH
Jason
10-03-2003, 12:30 PM
#7
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If you are SURE it's coming from the belts, sort it out quickly, strange things can happen. I would second the opinion that it sounds like valvetrain noise, however....YMMV Al
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10-03-2003, 01:00 PM
#10
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our 83 had this problem. shortly after we had new belts, the timing belt stretched, and would tap the top of the cover close to the distributor when it was cold. when it warmed up the belt tightened a little, and it was fine. get the timing belt tensioned a little tighter, and you'll be fine.
-Michael-
-Michael-
10-03-2003, 01:03 PM
#11
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I had the exact same problem until yesterday. My sound was a rattling noise that only occured the first two minutes of cold starting the car. It also only occured at idle. Once the car revved everything sounded fine.
I took the car in for service yesterday to have the noise looked at and asked them to check the timing belt tension. Turns out the previous owner had a "non-porsche" mechanic install the timing belt. Mechanic said that the belt was so loose that in another couple hundred miles it would have slipped. So, I would strongly suggest you have your timing belt tension looked at. Scary stuff.
Started up the car this morning and there was no sound at all. In fact the car runs *much* better now after the belt re-tension.
Hope this helps,
Peter
I took the car in for service yesterday to have the noise looked at and asked them to check the timing belt tension. Turns out the previous owner had a "non-porsche" mechanic install the timing belt. Mechanic said that the belt was so loose that in another couple hundred miles it would have slipped. So, I would strongly suggest you have your timing belt tension looked at. Scary stuff.
Started up the car this morning and there was no sound at all. In fact the car runs *much* better now after the belt re-tension.
Hope this helps,
Peter
10-03-2003, 10:04 PM
#13
Nordschleife Master
You've got two 944s and a 928 and you've never had the belts adjusted? Talk to your friendly local Porsche mechanic.
Maybe an hour labor on each one, and it can save you a lot of money.
Maybe an hour labor on each one, and it can save you a lot of money.
Last edited by Peckster; 10-03-2003 at 10:19 PM.
10-03-2003, 11:04 PM
#14
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My recent repair bill was around $171 which included 2.5 hours of labor. Not all 2.5 hours were spent on the belts however....the oil was changed, and lots of things were looked at. I am guessing around 1 hour of labor to re-tension the belt.
If you look at it the other way and just let the noise continue, that could result in $x,xxx's of dollars in damages. I choose to pay the first figure... :-)
Peter
If you look at it the other way and just let the noise continue, that could result in $x,xxx's of dollars in damages. I choose to pay the first figure... :-)
Peter
