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OK... I'm a 'tard - compression question

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Old Nov 2, 2013 | 06:16 PM
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OK... I'm a 'tard - compression question

I'm not a big iron mechanic, I'm a tech. I've made no claims otherwise. I am getting ready to do a compression test on Stinky, and I have no clue what the proper method is. I'm thinking faster is better (with the starter), but I can see where slower is better as well (hand crank). If I have to hand crank, I'd prefer to pop all the GPs (with only the tested cylinder compressing) to make it easier to turn.

Input?
 
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Old Nov 2, 2013 | 06:28 PM
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If its like a test on a gasser, you want fast. Leave the batteries on a charger, or you'll get artificially low results on the later cylinders.

Mark
 
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Old Nov 2, 2013 | 06:29 PM
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You want all the GPS out.

Mark
 
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Old Nov 2, 2013 | 06:30 PM
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Pull all the glow plugs and use the starter. A remote starter button/switch is nice to use.
 
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Old Nov 2, 2013 | 06:35 PM
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That's what I thought. Thanks for the quick reply... I'm on my way back to the garage, 10mm deep drive in hand.
 
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Old Nov 2, 2013 | 08:31 PM
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How were your compression readings?
 
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Old Nov 2, 2013 | 09:02 PM
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dont forget to unplug the injectors. D2 coming out of the GP hole at you is not fun.
 
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Old Nov 2, 2013 | 09:23 PM
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42-pin is unplugged and there is no fuel... or oil... or coolant. I have to pull all the injectors to do a cup leak test... I have fuel in my coolant. The compression test is a "while I'm in there" thing. Before I go tearing into the cup project, I want to know that my compression is good and I'm not just stacking bowling *****.
 
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Old Nov 2, 2013 | 09:34 PM
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Which ever route you go just make sure you do it consistent on each hole.
 
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Old Nov 2, 2013 | 11:58 PM
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You got it handled.
 
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