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No start after broken timing belt

 
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Old 31 Dec 2009, 04:36 pm
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Default No start after broken timing belt

My wife's PT has ~115,000 miles, it's a 2003.

Last week the timing belt broke as she was coming home from errands. I've replaced the timing belt and water pump and been unable to start the car now.

My symptoms are:

Fuel is present
Spark is present
I will perform a compression and leak down test(s) tonight

The engine turns over with no noises (metal on metal), but turns quite fast, as if the engine is failing to make compression. I thought that sense the belt broke (I was unable to align timing marks on operating engine), perhaps I had aligned the crankshaft 360 degrees off. So, this evening I reinstalled the belt rotating the crank 360 degrees, or one turn, while keeping camshafts timed.
I still experience the same engine symptoms, as if a lack of compression.

My timing marks currently aligned:





Any ideas?
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Old 31 Dec 2009, 06:14 pm
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Default Re: No start after broken timing belt

After viewing the manual, it appears as though my camshaft timing may be off by 180* each... I get this impression because of the writing on the gears. The manual shows the writing facing up (seems obvious now), when disassembling I noticed two pronounced timing marks and used those. Will retime the engine and get back.
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Old 31 Dec 2009, 11:35 pm
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Default Re: No start after broken timing belt

Hmm... Well it looks to me (little tight on the picture) that your right cam in the picture (intake) is correct, but the left (exhaust) is 180 off.
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Old 01 Jan 2010, 12:51 pm
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Default Re: No start after broken timing belt

New timing :



The car tries to start and misfires, after cranking for a few seconds... Does that help to point out a problem?

After retiming the engine and adjusting belt tension, I've rotated the engine two turns and then taken a picture.
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Old 02 Jan 2010, 08:36 pm
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Default Re: No start after broken timing belt

Finally got this worked out, after replacing spark plugs.

Having disconnected the A/C lines, what is the best method to get the system back in working order? Anything that can be purchased at a parts store?
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Old 02 Jan 2010, 09:26 pm
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Default Re: No start after broken timing belt

R134a charging kits are available at the auto parts store, however, you now have moisture in the open lines. Maybe there is an HVAC guy on here that can tell you how to proceed.
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Old 03 Jan 2010, 01:10 pm
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Default Re: No start after broken timing belt

Quote:
Originally Posted by mojojo View Post
Finally got this worked out, after replacing spark plugs.
Good for you!
Hope you replaced wires, too...
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Old 03 Jan 2010, 03:53 pm
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Default Re: No start after broken timing belt

Did not replace the wires, I did this about 15K miles ago. I replaced the plugs due to fuel fowling. My guess is trying to start it with the intake cam 180 off, or my wife trying to start the car after the belt broke...

Any help with the AC issue?
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Old 03 Jan 2010, 05:09 pm
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Default Re: No start after broken timing belt

To recharge the AC system you are supposed to evacuate the system with a vacuum pump to remove the moisture that has gotten into the system now.
It is a bit of a complicated job but it can be done yourself if you can rent a vacuum pump, and an AC recharge manifold set.
But it may be easier to find a shop with an AC recharge special.
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Old 04 Jan 2010, 07:14 pm
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Default Re: No start after broken timing belt

Quote:
Originally Posted by mojojo View Post
Did not replace the wires, I did this about 15K miles ago. I replaced the plugs due to fuel fowling. My guess is trying to start it with the intake cam 180 off, or my wife trying to start the car after the belt broke...

Any help with the AC issue?
Where are you? Maybe somebody local can help?
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