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Old 10-25-2012, 12:31 AM   #1
DeM3n
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Default Car won't start. Zero compression.

So on my lunch today my car died on me while driving. Popped the hood and saw the bottom a/c pulley shredded. Belt completely gone and the pulley itself gouged into the timing belt cover.

Took it to a local indy shop. Called me a bit again and said timing marks looked good. Replaced broken parts and car wouldn't start.

He saw crank sensor was the issue and replaced it. Still nothing. Did a compression test on the intake side and it read zero. He thought it might be his instrument but after trying it with a new one same results.

He says that he's gonna have to take the head off and check the valves. Any ideas?
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Old 10-25-2012, 12:46 AM   #2
Uncle Scotty
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ooooohhhhhh...that sounds like bad juju to me


if there is no compression on one side.....the 'timing marks' shouldnt look good

there is a deeper issue here
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Old 10-25-2012, 12:53 AM   #3
rocketperson7
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hole in piston?
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Old 10-25-2012, 02:18 AM   #4
DeM3n
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Quote:
Originally Posted by Uncle Scotty
ooooohhhhhh...that sounds like bad juju to me

if there is no compression on one side.....the 'timing marks' shouldnt look good

there is a deeper issue here
That's the strange thing. Guy says the timing marks matched up and that's why he put it back together the first time.

After trying to start it.... Nothing. With all the work entailed in the upper rebuild he estimates $1500!
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Old 10-25-2012, 09:46 AM   #5
Tripintaz
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No compression means the valves could be open during the compression stroke(assuming you didnt put a hole in all 4 pistons which seems unlikely).

If the timing belt was not installed correctly that could cause the issue. Maybe he forgot he has to make sure the cams and crank are lined up properly before installing the belt?
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Old 10-25-2012, 09:56 AM   #6
MRGierut013
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It sounds like he attempted to perform a cylinder leak-down test...on the intake side?
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Old 10-25-2012, 10:01 AM   #7
berge56
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Is he using the correct timing mark on the crank pulley? It's not the arrow, it's the line on the backside of the pulley. The arrow should be pointing towards the 3 oclock position roughly.
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Old 10-25-2012, 12:40 PM   #8
DeM3n
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I'm going to talk to him here in just a bit and mention some of these things to him. Thanks for the input. I'll post back with more info later today.

Edit: just got off the phone with him. So I was mistaken ij thinking he said he retimed it. He says he didn't since all timing marks were still on.

No leak down test, just compression test. He thinks all the valves are bent. The crank pulley had the a/c belt wrapped completely around it. Says it took him much longer than it should have to take it off.

Last edited by DeM3n; 10-25-2012 at 01:48 PM.
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