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I had someone bring me an 05 neon 2.0 they replaced timing belt water pump and tensioner pulley after it had broke it starts but wont idel the first thing i thought was bent valves but it also crossed my mind they didnt set timing marks right i ask them how they set timing marks they told me they lined up the timing marks at tdc they never checked to see if it was on compression or exhaust stroke could it be 180 out and still start just wont idle or no power.
 

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1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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Welcome to Allpar. If the belt broke while it was running or cranking over, the valves likely got dinged. The 2.0L is an interference engine.
Begin with a compression test.
If the #1 piston was at TDC, it wouldn't matter if the cam timing was 180°off. It would just be at the end of the exhaust stroke instead of being at the end of the compression stroke.
If the rest of the car is worth it, a valve job or reman head isn't the end of the world.
 

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Discussion Starter · #3 ·
Welcome to Allpar. If the belt broke while it was running or cranking over, the valves likely got dinged. The 2.0L is an interference engine.
Begin with a compression test.
If the #1 piston was at TDC, it wouldn't matter if the cam timing was 180°off. It would just be at the end of the exhaust stroke instead of being at the end of the compression stroke.
If the rest of the car is worth it, a valve job or reman head isn't the end of the world.
Yeah i though about it after i posted this that the crank dosent matter as long as its at tdc and yes the car is worth it im gonna get another head and change it i already ordered gasket set and bolts heads next thanks fir the reply
 

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I had someone bring me an 05 neon 2.0 they replaced timing belt water pump and tensioner pulley after it had broke it starts but wont idel the first thing i thought was bent valves but it also crossed my mind they didnt set timing marks right i ask them how they set timing marks they told me they lined up the timing marks at tdc they never checked to see if it was on compression or exhaust stroke could it be 180 out and still start just wont idle or no power.
The bottom of the engine doesn't care if it's compression or exhaust (and rotates twice per a rotation of the top), so it is impossible for the bottom to be 180º off.
 
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If the car is in park or neutral the rev limiter may be cutting in that early.
 

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It is easy for these to be a tooth off. After installing the belt with the marks lined up, always roll the engine crank over 2 turns. Then recheck the marks. I have had things set perfect, but after the belt settles into the sprocket path, it can fall back a tooth.
Some scan tools offer a cam/crank 'relearn' which is an adaptive value on these cars, but that won't fix a mis-timed belt.
 

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I'm trying to set my timing marks having a real hard time. when i try to align the intake cam it jumps as i turn it clock wise and lands just pass the alignment spot then when I crank it counter clock wise it loads the spring creating a of of pressure. Is this normal and or how do i get it to line up right???
I did have it idling once didn't like being revved. I took that as a good sign tried getting it closer but failed badly.
 

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