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Old 08-05-2010, 08:23 PM   #1
knclark67
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Default Timing belt and associated damage?

If the timing belt snapped, how much damage can this cause to the engine?

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Old 08-05-2010, 08:31 PM   #2
mrtube
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Default Re: Timing belt and associated damage?

very few engines are not damaged atall by design.

Most engines can sustain enough damage that they will need a complete rebuild or a top end rebuild at a minimum.

point being, don't let it happen you won't be happy.

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Old 08-06-2010, 01:41 PM   #3
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Default Re: Timing belt and associated damage?

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If the timing belt snapped, how much damage can this cause to the engine?
What engine? I think the L81 (GM-OPEL) V6s used in the 02 and 03 are "interference" engines. A broken belt would result in the valves and pistons crashing together.

Perhaps the Honda and GM posters will add to this post.

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Old 08-06-2010, 02:28 PM   #4
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Default Re: Timing belt and associated damage?

I have a 2003 V6 on a Saturn Vue.

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Old 08-06-2010, 09:57 PM   #5
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Default Re: Timing belt and associated damage?

Quote:
Originally Posted by knclark67 View Post
If the timing belt snapped, how much damage can this cause to the engine?
Minimum will be bent valves.

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Old 08-06-2010, 10:55 PM   #6
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Default Re: Timing belt and associated damage?

Many years ago I had a 73 Nova that the timing chain slipped teeth on from old age. I got lucky and only bent push rods. I don't want to take that chance ever again.

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Old 04-11-2011, 08:28 AM   #7
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Default Re: Timing belt and associated damage?

I have a 2003 VUE V6 and just replaced the timing belt. As luck would have it the AC compressor siezed up and as a result caused the serpentime belt to lock and the timing belt to shear apart (or so the shop says). Now I am looking at $3500 in repairs as I have a bent valve, need a new AC compressor, the hear has to be sent out to be machined for the new valve and ann the other parts that have to be replaced. I really question how this is possible since the AC compressor should cause the serpentine belt to rip off first (I would think).

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Old 04-11-2011, 08:38 AM   #8
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Default Re: Timing belt and associated damage?

Sorry for the repairs needed. For the above poster I would think that $3500 is close to the value of the vehicle. If it was paid off, I would consider parting it out, donating it to charity or giving it to a junkyard.

Last edited by mikec; 04-11-2011 at 08:47 AM..

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Old 04-11-2011, 09:50 AM   #9
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Default Re: Timing belt and associated damage?

Quote:
Originally Posted by cw2899 View Post
I really question how this is possible since the AC compressor should cause the serpentine belt to rip off first (I would think).
There's been at least 2 reports of shredded Serp Belts getting under the Timing Belt Cover. Seems hard to believe, but apparently it happens. I think I better replace my leaking A/C Compressor before it siezes.

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Old 04-11-2011, 10:15 AM   #10
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Default Re: Timing belt and associated damage?

2 things...first my apologies for the spelling errors in my last post. And second, I have to wonder how the AC compressor "siezes" and causes the timing belt to shear apart. I would think the serpentine belt would "squeal" and come off before the timing belt would come apart. If anyone can make sense of this for me it would be appreciated. Oh yea, I did notice a rattle noise that was getting louder ever since the timing belt was replaced. It sounded to me like the belt was rattling inside the timing cover and would make more noise with increase in RPM. So I wonder if the shop screwed something up.

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Old 04-11-2011, 11:29 AM   #11
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Default Re: Timing belt and associated damage?

Quote:
Originally Posted by cw2899 View Post
I have to wonder how the AC compressor "siezes" and causes the timing belt to shear apart. I would think the serpentine belt would "squeal" and come off before the timing belt would come apart. If anyone can make sense of this for me it would be appreciated. Oh yea, I did notice a rattle noise that was getting louder ever since the timing belt was replaced. It sounded to me like the belt was rattling inside the timing cover and would make more noise with increase in RPM. So I wonder if the shop screwed something up.
What I believe happens is: the Serp Belt fails -for whatever reason -and pcs get inside the Timing Belt Cover and then get under the Timing Belt which causes it to jump some teeth. Did they replace your Tensioner and Idlers when the Timing Belt was replaced?

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Old 04-11-2011, 11:54 AM   #12
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Default Re: Timing belt and associated damage?

Thanks for the reply! Yes, when they did the timing belt they also replaced the tensioners, waterpump and new serpentine belt.

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Old 04-11-2011, 12:18 PM   #13
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Default Re: Timing belt and associated damage?

Quote:
Originally Posted by cw2899 View Post
Oh yea, I did notice a rattle noise that was getting louder ever since the timing belt was replaced. It sounded to me like the belt was rattling inside the timing cover and would make more noise with increase in RPM. So I wonder if the shop screwed something up.
Sounds to me like they did screw something up like not doing the proper adjustment on the tensioner before torquing the bolts (hence the rattling)
sorry about your loss.

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Old 04-11-2011, 12:45 PM   #14
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Default Re: Timing belt and associated damage?

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Originally Posted by Someclown View Post
Sounds to me like they did screw something up like not doing the proper adjustment on the tensioner before torquing the bolts (hence the rattling)
Maybe too coincidental that the A/C Compressor would fail right after the Timing Belt was installed. I don't suppose they showed you the seized unit?

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Old 04-11-2011, 01:01 PM   #15
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Default Re: Timing belt and associated damage?

Quote:
Originally Posted by Chazberry View Post
Maybe too coincidental that the A/C Compressor would fail right after the Timing Belt was installed. I don't suppose they showed you the seized unit?
I believe the serpentine belt would burn off before the timing belt with a seized compressor , Im sure the serp. belt would spin on the compressor pulleye
Coincidink maybe !!
A way out for the mechanic or shop from having to pay for the damage probable

I dont recall ever hearing of a compressor seizing but others may know better than myself about that

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Old 04-12-2011, 12:36 PM   #16
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Default Re: Timing belt and associated damage?

Yea, it is very "odd" and I can guarantee I will demand to see the old compressor. Especiallly since it was not making any noise before I brought it into the shop. And the noise I heard was too much like a timing belt slapping the inside the cover to me. And when I mentioned it they said it was "a noisy compressor". Regardless, guess I will be driving the vehicle for quite a while to recover the expense.

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Old 11-11-2018, 07:35 AM   #17
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Default Re: Timing belt and associated damage?

Quote:
Originally Posted by Chazberry View Post
Maybe too coincidental that the A/C Compressor would fail right after the Timing Belt was installed. I don't suppose they showed you the seized unit?
It seized because the new serpentine belt and tensioner pully put much more force on the pully system that a already weak a/c failed under the tension. Makes alot of sense this would happen.

Only reason I created an account was to explain this since noone had an idea

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Old 11-11-2018, 09:08 AM   #18
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Default Re: Timing belt and associated damage?

Joined just to revive a 7 year old topic?

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