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timing belt/ no start/ no compression

 
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Old 17 Feb 2010, 10:27 pm
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Default timing belt/ no start/ no compression

Sooooo....my 'O3 died on my way back from work the other night. I was in 4th gear doing about 115kms.....still accelerating (empty stretch of road on my way out) and then....nothing.

Got it towed and my mechanic says....timing belt....cheaper to just buy another engine....OUCH!

He checked the compression and a big whopping 0 .....reading on here it seems that even if the timing belt breaks...you don't do damage to the valves or the engine....would I still have 0 then?

I ok'ed the repairs....all 2500$ according to his estimates, but starting the wonder about the accuracy of his diagnosis.

I trust the mechanic....always have, just wonder if he missed the boat?

My car is not stock...Stage 1 and stuff....but would it be any different than any of the others on here that had timing belt issues.

Please advise!

Sylvain
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Old 18 Feb 2010, 03:43 am
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Default Re: timing belt/ no start/ no compression

Quote:
Originally Posted by sylster View Post
.....reading on here it seems that even if the timing belt breaks...you don't do damage to the valves or the engine....would I still have 0 then?
Sylvain,

Sorry, but you read the other posts wrong. When the timing belt breaks, the valves can't hit the piston tops BUT the valves from both camshafts can hit each other. It doesn't happen often but with the scenario you posted (4th gear and still accelerating) it's a likely outcome.
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Old 18 Feb 2010, 06:42 pm
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Default Re: timing belt/ no start/ no compression

I'm not sure how there'd be compression with a broken timing belt - what would close the valves??
$2500 sounds high - won't know what's up until head is taken off, but new engine? Why? At most, a rebuilt head & timing belt.
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Old 28 Feb 2010, 09:03 pm
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Default Re: timing belt/ no start/ no compression

You won't have any compression with a broken timing belt. The only way to find out is to put a new belt on and then test for compression. I've seen a bunch of belts break but haven't seen it do any damage. It's possible buy highly unlikely. Have him put a new belt on and check again.
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Old 01 Mar 2010, 10:46 am
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Default Re: timing belt/ no start/ no compression

Ended up replacing the engine with a younger one...that's why the higher price. Let's just say that my engine had a rough life

Now unfortunately, the car seems to "hesitate" or miss? especially noticeable when accelerating....almost seems like misfiring.....not enough not to run....but definably feels something wrong.....any ideas?

Sylvain
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Old 01 Mar 2010, 03:23 pm
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Default Re: timing belt/ no start/ no compression

Plugs, Plug Wires!!
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Old 01 Mar 2010, 04:52 pm
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Default Re: timing belt/ no start/ no compression

Quote:
Originally Posted by Hooligan View Post
Plugs, Plug Wires!!
Most common cause - and don't waste mony on stock wires - even autolite are better - gap at 0.030 for turbo w/stage 1.
Easy on an '03 turbo with aluminum manifold.
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Old 01 Mar 2010, 07:31 pm
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Default Re: timing belt/ no start/ no compression

Already have the Mopar wires and plugs were gapped like 6 months ago....noticed my air filter is very dirty...just bought the stuff to clean it.....but since the car didn't hesitate before the engine swap....it's got me concerned a little.

S.
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Old 01 Mar 2010, 07:42 pm
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Default Re: timing belt/ no start/ no compression

There's so many thing that could have happened with the engine swap you have to start somewhere to find the problem. The plugs and wires that were recommended already is a good place to start. Make sure all the plug wires are secure at both ends too.

Double check on the vacuum lines and electrical connections for a tight fit as even a small vacuum line letting air in will cause problems.
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