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engine compression test; idk
Topic Started: Feb 1 2013, 02:52 AM (719 Views)
Pavelivanov22
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I did a dry test on the engine my results were going from right to left side of engine 160 60 and 30 . Anyone point me in the direction to a thread that would explain what can be wrong? pistons or piston rings? Also my corroborator seems to be having tom much fuel in there.. anyone might know whats wrong i don't think its fuel pump.
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patrickbruce
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average teenage gearhead

Are you sure its a carb? I didn't think the 93 came with those.......
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Vkhelldog
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Your fuel injectors probably bad, your valves are burnt, rebuild engine, test all the sensors, and test your fuel injector.... I can help if you want to drive 5 hours to see me :-)
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Woodie
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It's simply worn out. Doesn't matter what is wrong, makes no sense to take it apart without doing it all.
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Hanuman
"The Almighty Grounds Cleaner"

yep, bad valve at the minimum.....my geo was 18, 90, 160..........the #1 cylinder valve looked like a pizza slice hAD been removed. it would often flood out too.
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Hanuman
"The Almighty Grounds Cleaner"

yep, bad valve at the minimum.....my geo was 18, 90, 160..........the #1 cylinder valve looked like a pizza slice hAD been removed. it would often flood out too.
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Pavelivanov22
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Should i just get a new moter then? well not new but get one out of a different car? Its the only car i have.
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Old Man


if you can find a motor with good compression then change motors. Be sure and check the compression BEFORE buying the motor, no matter how good the salesman says it is, even if it is garrenteed.
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Pavelivanov22
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whats normal compression on Geo? Also i dont know how to test compression on a motor that is pulled out of a car..
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Pavelivanov22
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Vkhelldog
Feb 1 2013, 04:23 AM
Your fuel injectors probably bad, your valves are burnt, rebuild engine, test all the sensors, and test your fuel injector.... I can help if you want to drive 5 hours to see me :-)
appreciate your help but i dont think it will get me that far.. :banghead :die :stoner :shit
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patrickbruce
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average teenage gearhead

150+ is good

180+ is great

all cylinders readings should be within 10% of each other
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Old Man


Pavelivanov22
Feb 3 2013, 02:21 AM
i dont know how to test compression on a motor that is pulled out of a car..
engine sitting on bench or floor. battery to starter. compression gauge hooked up. hit the starter button for about 10 seconds.
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Reista
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Clutzy Shadetree

Old Man
Feb 3 2013, 03:10 AM
Pavelivanov22
Feb 3 2013, 02:21 AM
i dont know how to test compression on a motor that is pulled out of a car..
engine sitting on bench or floor. battery to starter. compression gauge hooked up. hit the starter button for about 10 seconds.
If his intake manifold is on, won't he have to have a wide open throttle as well to insure adequate air flow?
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