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compression check, what 2 look 4

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Old Apr 24, 2002 | 08:12 PM
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compression check, what 2 look 4

i am going 2 check compression saturday. pls offer suggestions on how 2 perform and what 2 look 4. how much compression should i get?

thx for all the help,

dave
 
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Old Apr 24, 2002 | 10:04 PM
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compression check, what 2 look 4

Best results are with a warm engine. Disable ign. system, open throttle fully. Highest and lowest readings should be within 80% of each other.
 
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Old Apr 25, 2002 | 06:07 AM
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compression check, what 2 look 4

Do you still need to disable the ignition if you use a remote starter switch and the ignition switch turned off?
 
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Old Apr 25, 2002 | 10:52 PM
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compression check, what 2 look 4

no.
 
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Old Apr 27, 2002 | 03:18 PM
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compression check, what 2 look 4

[updated:LAST EDITED ON 27-Apr-02 AT 04:36 PM (EST)]why disable ignition? I performed the test today by taking all plugs out (to minimize battery strain and eliminate compression in other cylinders) and let the plug wires hang down. Seemed to work but maybe i did it wrong.

By the way, my results on the 300 six were from front of engine to rear toward cab:

147, 150, 160, 149, 155, 156


 
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Old Apr 28, 2002 | 03:49 AM
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compression check, what 2 look 4

With some electronic ignitions you can damage them if you don't allow for all that energy to go some where. I think you can do it that way if you ground all the plug wires.:-staun
 
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Old Apr 28, 2002 | 03:18 PM
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compression check, what 2 look 4

 
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