I might have a compression issue

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11-23-2010, 04:33 AM

#21

crush02342002

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yeah autometer isnt the best in the world

11-25-2010, 03:52 PM

#22

AZGuy

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Leak down test showed I have a ring issue, time to tear into it.

11-26-2010, 04:09 AM

#23

BlackKnight

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How many rotations did you allow before pulling readings? Do a minimum of 4-5 dry and then do 4-5 with a squirt of oil to see if the readings to see how much they change.

11-26-2010, 08:53 PM

#24

AZGuy

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Quote:

Originally Posted by BlackKnight

How many rotations did you allow before pulling readings? Do a minimum of 4-5 dry and then do 4-5 with a squirt of oil to see if the readings to see how much they change.

Same as what I do and then after the low reading gave it an extra 1-2 cranks with no change.

The leak down test is different than normal compression test and tells you where it is leaking.

11-27-2010, 12:39 PM

#25

OuterHeaven

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In the leak down test you do not turn over the engine, you use compressed air at different parts of the compression stroke to try and find out the problem.

12-03-2010, 09:42 AM

#26

BlackKnight

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Quote:

Originally Posted by OuterHeaven

In the leak down test you do not turn over the engine, you use compressed air at different parts of the compression stroke to try and find out the problem.

There are several ways to do it, that is one of them.

12-24-2010, 03:26 PM

#27

AZGuy

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Just as an update, it did end up being rings and I am fixing it now. Just as a reference for anyone in the future looking at this thread.

Funny isn't it, supercharged guy has an issue and it isn't the supercharger lol even though I have tons of confidence in my SC.