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2003 pt cruiser no compression

 
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Old 16 Apr 2011, 08:09 pm
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Default 2003 pt cruiser no compression

Help...gotta 2003 pt gt 2.4L water pump failed causing the timing belt to stretch (we believe) replaced the timing belt and water pump had timing marks all lined up put it all back together and......she won't start did a compression test today and she's not getting any compression, took of the valve cover all the springs look great and nothing out of the ordinary.....any suggestions??
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Old 16 Apr 2011, 09:26 pm
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Default Re: 2003 pt cruiser no compression

Is it 180 Degrees out of time? Remember the crank goes around twice for each rev of the cams. Hope that is it and you did not bend any valves when it last ran or after trying to start after belt replacement.
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Old 16 Apr 2011, 10:44 pm
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Default Re: 2003 pt cruiser no compression

N its not 180 off timing and no we have pulled the valve cover and checked the valves they are all properlly fuctioning, bout to pull the harmonic balancer off again and recheck this damn timing...we had it dead on when we put her back together but we r utterly stumped
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Old 17 Apr 2011, 01:24 am
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Default Re: 2003 pt cruiser no compression

Ok so the timing is still DEAD on maybe when the car died the asd relay blew?? Idk guess we will check that again next
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Old 17 Apr 2011, 11:59 pm
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Default Re: 2003 pt cruiser no compression

The only way I know of to check for bent valves short of pulling the head would be with a fiberoptic scope. Watching them move up and down from the topside of the head will not tell you if they are straight and true and seating 100% when closed.
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12 Regal Turbo
06 PT - Base with BLING! TRADED 5/27/13
01 PT LE - Kid's Car - TRADED 01/13
01 Beetle Sport - SilverSport - 150+ MPH
93 Del Sol - 32+ MPG
90 F150
73 Mach1
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Old 18 Apr 2011, 12:54 am
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Default Re: 2003 pt cruiser no compression

we checked the valves they appear to be operating fine< also replaced the thermostat, crankshaft position sensor and camshaft position sensor......arggg no luck wrenched on it all weekend (again) and still nothin.... driving us crazy what is going on???
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Old 23 Apr 2011, 05:40 pm
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Default Re: 2003 pt cruiser no compression

hey there is something definetlly wrong if u aint got any compression, was it running befor this or did the belt jump and the car stalled. I would be almost certain valves contacted pistons either bending valves or it put cracks in the pistons from them hitting. Its kinda a bear of a job but i would pull the head and visually check the head and pistons. well hope this helps
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Old 23 Apr 2011, 07:19 pm
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Default Re: 2003 pt cruiser no compression

Quote:
Originally Posted by 2006cruiserBruiser View Post
I would be almost certain valves contacted pistons either bending valves or it put cracks in the pistons from them hitting. Its kinda a bear of a job but i would pull the head and visually check the head and pistons. well hope this helps
Sorry Bruiser; The PT engine is a NON-Interference engine. The vales CAN'T hit the pistons. The valves can hit each other if the timing belt brakes at extremely high speed but no piston damage will occur. Out of the hundreds of owners that came to the forum with a broken belt, no piston damage has ever been done and the tiniest percentage, maybe 1% had valve damage.
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