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      12-22-2018, 04:18 PM   #9
wheelpro
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Drives: M5,F10,JB4,DP,CP,METH,SSP
Join Date: Sep 2012
Location: CAIRO

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Is this all on the same bank the way you numbered them?

How did you break the engine in?

Boroscope of those cylinders?
Quote:
Originally Posted by SapphireM5 View Post
Is this all on the same bank the way you numbered them?

How did you break the engine in?

Boroscope of those cylinders?
Yes all the same
Break in like normal steps
Or there is something wrong ?
Anything above 20% - 30% usually indicates a problem or time for rebuild/tear down. I'm not being insulting just want to confirm:

- TDC for cylinder tested?
- Cams timed?
- what exactly was the break in procedure?
- could you hear air escaping while conducting the test? If so where?

60% leakage is pretty bad.
Tdc yes
Cams out of cylinders head
Break in like you stole it but not all time
And now only 1500 km
Air hearing from under pistons
But i cant feel air directly
Oil pan out too
If you are hearing air from under the pistons and in the oil pan then it's the rings. If the issue was in the head/valves you would hear the air coming out of the intake and exhaust.

What was the other side percentage?
All cylinders the same
Only air hearing from oil pan
Yeah then the rings are allowing the air to pass.

Maybe ring gap or they didn't seal during break in.

Sorry buddy i know how hard you have been working to get her back up and running.

But may be rings need more mileages to set ?
Its total seal brand
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