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Dec 30th, 2023
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 Compression Test Question
#11035009
08/11/15 03:33 PM
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Joined: Sep 2006
Posts: 141
tdavis184
OP
Outdoorsman
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OP
Outdoorsman
Joined: Sep 2006
Posts: 141 |
1995 Mercury 200hp 2.5L Xri EFI
When doing a compression test on this engine, is there any special steps other than just hooking up the test gauge? Is throttle to be held open during test? Or any other step before performing the key turn?
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Re: Compression Test Question
[Re: tdavis184]
#11035049
08/11/15 03:48 PM
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Joined: Nov 2007
Posts: 5,514
ssmith
TFF Celebrity
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TFF Celebrity
Joined: Nov 2007
Posts: 5,514 |
let the motor warm up first
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Re: Compression Test Question
[Re: tdavis184]
#11035387
08/11/15 06:37 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Pull the kill switch and yes to full throttle will give more accurate reading after warm up.
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Compression Test Question
[Re: tdavis184]
#11035411
08/11/15 06:46 PM
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Joined: Sep 2006
Posts: 141
tdavis184
OP
Outdoorsman
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OP
Outdoorsman
Joined: Sep 2006
Posts: 141 |
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Re: Compression Test Question
[Re: tdavis184]
#11035453
08/11/15 07:12 PM
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Joined: Aug 2006
Posts: 7,182
steve@S2Marine
TFF Celebrity
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TFF Celebrity
Joined: Aug 2006
Posts: 7,182 |
do leak down test also.
tells you a lot more about the condition of the cylinders with pistons at top dead center.
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