Leak down test

[1NASTYGN]

Performed leak test.

 

[pacecarta]

thats a compression test , numbers looks ok ..plugs not so good

leakdown uses an air compressor and a leak down gauge and the results are a %

 

[1NASTYGN]

Yes sir. I will perform the leak down next. I’m getting some vapors from breathers and not sure if it’s the E85 or something else. Thank you gentlemen

 

[1NASTYGN]

Tested passenger side. Very little to no movement

 

[1NASTYGN]

Should the pressure be 100psi ? I read to put it a 30 to 49 psi

 

[THensley]

You have a nice list of go fast parts
I think a fresh set of plugs and revisit your tune

 

[JayC]

Should the pressure be 100psi ? I read to put it a 30 to 49 psi

Ive always used 100

 

[Mr.Spool]

Performed leak test.

The plugs are not uniform along with other things I see.
The afr and timing needs to be changed

 

[Mr.Spool]

I prefer a cold and hot compression test numbers
It tells alot

 

[Chuck Leeper]

The leak % shown in the "set" frame says to me that there's not enough test psi.
Plugs are nasty.

 

[THensley]

Personally his compression number all look good
Leakdown test will tell you if its rings , valves or head gasket on a cylinder that is low compression
Yes 140-149 has some split but the plugs are rich fouled and that can cause some split
I truly have idea what a E85 plug should look like, but those don't look so good.
I would think E85 could wash the cylinder down if to rich and give you some vapors. Is my thinking wrong here?

 

[Mr. Michael]

You want it 100psi so that you are representing compression. That way you will get a "leak" through the rings, or a valve seat etc. At 30psi you re not even making enough to show squat. I am sure you tried it at 100psi yes?