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  #1   IP: 99.203.119.81
Old 05-11-2019, 05:59 PM
nyvoyager nyvoyager is online now
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What the heck is this?

Water in oil saga continues. I'm about one inch from pulling the A4.
In the meantime I run a compression test and pressurized the block. I don't have confidence in either test yet and will redo. I pulled the valve cover off. Just to the right of the right most valve? What the heck is it?
Note I can't see directly so took pictures with flash on
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  #2   IP: 222.165.249.162
Old 05-11-2019, 06:28 PM
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roadnsky roadnsky is online now
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Quote:
Originally Posted by nyvoyager View Post
In the meantime I run a compression test and pressurized the block. I don't have confidence in either test yet and will redo.
Can you explain WHY you don't have confidence in those tests?

Quote:
Note I can't see directly so took pictures with flash on
No pictures?
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  #3   IP: 97.93.70.7
Old 05-12-2019, 09:50 AM
Dave Neptune Dave Neptune is offline
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I can't "see" your picture but does it look like a rusted out pipe plug? A few engines have a casting "fix" from the factory as I recall.

Did your tests show maintaining pressure?

Pics may just help.

Dave Neptune
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  #4   IP: 74.88.0.97
Old 05-12-2019, 10:32 AM
nyvoyager nyvoyager is online now
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Sorry i don't know why the photo didn't post
There is a metallic looking thing by the red arrow...under the rusted spring
This and the plug are for the #4 cylinder.
definitely something going on with #4

Compression test: the motor sounds okay when running
Block pressure test: i think the home depot gauge is leaking

Almost have the head off
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Last edited by nyvoyager; 05-12-2019 at 10:42 AM.
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  #5   IP: 24.152.132.140
Old 05-12-2019, 11:09 AM
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Quote:
Originally Posted by nyvoyager View Post
Block pressure test: I think the Home Depot gauge is leaking
Why do you think that? What evidence is there of a leaky gauge?

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Almost have the head off
At what stage is the head removal? Once the seal of the head gasket is broken or the manifold is removed you can no longer pressure test.
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  #6   IP: 74.88.0.97
Old 05-12-2019, 12:25 PM
nyvoyager nyvoyager is online now
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i put the gauge on a short length of hose and it didn't hold pressure.
There are also many reviews on the HD site which state the same

Good point - I only have about half the bolts loosened - the rest are soaking in pb blaster. haven't broken the seal yet. I'll try to test it again. But i think I'm pulling it anyway
This engine is on borrowed time
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  #7   IP: 174.62.214.55
Old 05-12-2019, 10:32 PM
vtbob vtbob is offline
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the picture with the red arrow looks something like a problem that I had. If you do a search using vtbob you can see my water in oil post.
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