Compression/Leak down test results.

[Badarse97]

Compression test:

175,165,160,150

No time to put oil in the 4th because i had to go. but i assume it would of went up though.

Leak down:

first and second=no leaks.

third was something like 5%

4th was around 10-12%

so you guys think my rings are ready to poop out?

 

[pboglio]

Could be carbon deposits. I had my #2 cylinder reading 12% leakage, did an extensive Sea foam treatment, and brought it back up to 6% leakage. I had to put seafoam thru the FP regulator vacuum port to get it to into the #1 & #2 cylinder, then for the other cylinders thru the BOV vacuum port.

 

[Badarse97]

Oh ok cool. ill try it out.

I forgot how that stuff works. just put the hose from the FP or BOV Vac into the can while its running?

 

[pboglio]

I usually dump that Seafoam into a spray bottle, and spray it in so the motor doesn't die. Though I think you could "probably" let the motor suck it in on its own, that one I never tried before.

 

[Calan]

I just run a line from the P port on the TB to 1/2 can of seafoam, and tweak the throttle enough by hand to keep the car running until the can is empty. Then I let it die, sit for 15 minutes, and then start the smoke show.

 

[Badarse97]

Lol my neighbors are going to kill me.

 

[tsi4g63dohc]

I thought using seafoam could sometimes find leaks you didn't know existed and make things worse instead of better ?

 

[Badarse97]

it can if your engine has 150,000 miles and has never been cleaned. All the carbon on the valves might be keeping those leaks plugged. When you clean that carbon out you opened up a whole new problem. As long as you maintain your engine that shouldn't happen.

 

[Calan]

I thought using seafoam could sometimes find leaks you didn't know existed and make things worse instead of better ?

It's great for finding exhaust leaks around the manifold and turbo

 

[SpawnedX]

I would still do the oil test, it's pretty accurate at deciphering issues, compression goes up, rings are worn. Compression stays the same, possible HG.