compression test results (not good)

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Jan 23, 2013 | 06:54 PM

#11

stewie01

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From: Fredericksburg, Virginia

Quote:

Originally Posted by 97tn4x4

You're suppose to hold the throttle wide open while doing the test. That can affect your readings.

How so? I ask because I did a compression test a while back (for ***** and giggles) and didn't know that I was supposed to hold it WOT...

I think I saw 150 on all but 1, cylinder 1, was a tad lower...

Jan 23, 2013 | 06:54 PM

#12

greanbeans

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Quote:

Originally Posted by merc225hp

Yes sir it is, but I have found it at other stores as well just have to hunt for it on the shelves. Great product.

Cool ill ha ve to get me some

Jan 23, 2013 | 06:55 PM

#13

greanbeans

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Quote:

Originally Posted by stewie01

Exactly

Jan 23, 2013 | 07:03 PM

#14

crazzywolfie

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From: orangeville ontario

Wot will increase the compression numbers by giving the engine all the necessary amount of air to reach is full compression

Jan 23, 2013 | 07:09 PM

#15

stewie01

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From: Fredericksburg, Virginia

Quote:

Originally Posted by crazzywolfie

Wot will increase the compression numbers by giving the engine all the necessary amount of air to reach is full compression

Ah. Makes sense. I should go buy a compression tester and see what my numbers really are

Jan 23, 2013 | 07:15 PM

#16

crazzywolfie

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From: orangeville ontario

i wouldn't mind getting one of those fancier compression testers just for the extensions. then i could hook my air chuck to the adapter and do a leak down test.

Jan 23, 2013 | 07:41 PM

#17

dhvaughan

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From: Gainesville, Ga.

Quote:

Originally Posted by stewie01

How so? I ask because I did a compression test a while back ..... and didn't know that I was supposed to hold it WOT....

wide open throttle allows in maximum unrestricted air to compress. it might or might not give you slightly higher numbers. with throttle plate closed and iac closed the engine could theoretically starve for air.

to OP. those numbers aren't too bad. drive on another 100K miles.