After rebuild 1500 km

wheelpro · 12-22-2018, 02:32 PM

I removed my engine to inspect all parts and see if my project good or something wrong
Checked pistons, rod bearing, rods, sleeves , camshafts
All good
But I checked cylinders leakage test
With camshafts out
Share with you results
And i am confused thats normal or not
Cause i know fresh engine leakage normal from 5-10 % only
My piston rings gab first .060
And second .065
All cylinders Tdc

SapphireM5 · 12-22-2018, 03:16 PM

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

How did you break the engine in?

Boroscope of those cylinders?

wheelpro · 12-22-2018, 03:18 PM

Quote:

Originally Posted by SapphireM5

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

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 ?

SapphireM5 · 12-22-2018, 03:24 PM

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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.

wheelpro · 12-22-2018, 03:42 PM

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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

SapphireM5 · 12-22-2018, 03:45 PM

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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?

wheelpro · 12-22-2018, 03:48 PM

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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

SapphireM5 · 12-22-2018, 04:08 PM

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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.

wheelpro · 12-22-2018, 04:18 PM

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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

SapphireM5 · 12-22-2018, 04:26 PM

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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

Hopefully someone who knows more than me will chime in, but I would think at 1500km those rings should be seated. We're the cylinders honed / machined during the rebuild?

wheelpro · 12-22-2018, 04:47 PM

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

Quote:

Originally Posted by wheelpro

Quote:

Originally Posted by SapphireM5

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

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

Hopefully someone who knows more than me will chime in, but I would think at 1500km those rings should be seated. We're the cylinders honed / machined during the rebuild?

Dont forget

Engine cold

Cylinders head not torqued as well

My pressure 70 psi only
100psi target from 0-10 % leakage

70 psi = target 70- 60 leakage
Right or wrong ?

SapphireM5 · 12-22-2018, 05:48 PM

A cold engine will effect results. Usually you Zero out the gauge with the regulator before you connect to the line in the spark plug hole. Once you connect it gives you the percentage loss. Just want to confirm you did that.

wheelpro · 12-22-2018, 05:50 PM

Quote:

Originally Posted by SapphireM5

A cold engine will effect results. Usually you Zero out the gauge with the regulator before you connect to the line in the spark plug hole. Once you connect it gives you the percentage loss. Just want to confirm you did that.

I will do this steps tomorrow
With updates
Thanks for your reply

SapphireM5 · 12-22-2018, 05:54 PM

Quote:

Originally Posted by wheelpro

I will do this steps tomorrow
With updates
Thanks for your reply

I found a good video here for you, it will explain it better than I could lol

Good luck bud!

SapphireM5 · 12-22-2018, 06:24 PM

Quote:

Originally Posted by wheelpro

Dont forget

Engine cold

Cylinders head not torqued as well

My pressure 70 psi only
100psi target from 0-10 % leakage

70 psi = target 70- 60 leakage
Right or wrong ?

I missed this before, yes if you were introducing the air directly without Zeroing the gauge and you cranked it to 70 and the gauge on the right read 60 then yes that would be 10% loss if thats how you did it, which wouldnt be bad for a cold engine. But if thats how you did it.

Sales@RKautowerks · 12-23-2018, 02:39 PM

You're suppose to do this all with the engine warm for accurate results. I honestly don't know why you guys even went to the lengths you did to tear apart a good engine. All you've done is introduced issues now for no reason.

-R

wheelpro · 12-28-2018, 08:59 PM

Quote:

Originally Posted by Sales@RKautowerks

You're suppose to do this all with the engine warm for accurate results. I honestly don't know why you guys even went to the lengths you did to tear apart a good engine. All you've done is introduced issues now for no reason.

-R

Do you want to know why ?
Cause thats not normal

SapphireM5 · 12-28-2018, 09:15 PM

Rings bad?

wheelpro · 12-28-2018, 09:23 PM

Quote:

Originally Posted by SapphireM5

Rings bad?

All 8 cyl rings bad ?
Not normal ?
And i inspect them looks good
I have photo not clear but you can see too

SapphireM5 · 12-28-2018, 09:25 PM

Tough to see in the pictures, but does it
Look like oil is getting passed the rings?

wheelpro · 12-28-2018, 09:32 PM

Quote:

Originally Posted by SapphireM5

Tough to see in the pictures, but does it
Look like oil is getting passed the rings?

No oil
But i worried about leakage too
And engine like rich

Dwaynos · 12-29-2018, 02:26 AM

Did you go back and do another leakdown after ensuring everything was sealed tight and zeroing the gauge?

12-22-2018, 02:32 PM	#1
wheelpro Lieutenant 176 Rep 594 Posts Drives: M5,F10,JB4,DP,CP,METH,SSP Join Date: Sep 2012 Location: CAIRO iTrader: (0)	After rebuild 1500 km I removed my engine to inspect all parts and see if my project good or something wrong Checked pistons, rod bearing, rods, sleeves , camshafts All good But I checked cylinders leakage test With camshafts out Share with you results And i am confused thats normal or not Cause i know fresh engine leakage normal from 5-10 % only My piston rings gab first .060 And second .065 All cylinders Tdc Attached Images __________________ Mohamed kamal elkasaby
	Appreciate 0 Tweet Quote

12-22-2018, 03:16 PM	#2
SapphireM5 Major 711 Rep 1,107 Posts Drives: 2013 M5 Sapphire Black Join Date: Feb 2017 Location: New Jersey iTrader: (3)	Is this all on the same bank the way you numbered them? How did you break the engine in? Boroscope of those cylinders? __________________ '13 Black Sapphire Metallic - BPM Stage 1 Tune - RPI Exhaust - KW HAS Kit - 12mm spacers all around- Carbon Fiber front lip - High Kick Trunk Spoiler - Rear Roof Spoiler - IND Kidney and Fender Grills - 20% Tint all around 50% Front Windshield - PPF
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12-22-2018, 05:48 PM	#12
SapphireM5 Major 711 Rep 1,107 Posts Drives: 2013 M5 Sapphire Black Join Date: Feb 2017 Location: New Jersey iTrader: (3)	A cold engine will effect results. Usually you Zero out the gauge with the regulator before you connect to the line in the spark plug hole. Once you connect it gives you the percentage loss. Just want to confirm you did that. __________________ '13 Black Sapphire Metallic - BPM Stage 1 Tune - RPI Exhaust - KW HAS Kit - 12mm spacers all around- Carbon Fiber front lip - High Kick Trunk Spoiler - Rear Roof Spoiler - IND Kidney and Fender Grills - 20% Tint all around 50% Front Windshield - PPF
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12-23-2018, 02:39 PM	#16
Sales@RKautowerks Lieutenant 357 Rep 435 Posts Drives: e92 m3 Join Date: Aug 2013 Location: United States iTrader: (0)	You're suppose to do this all with the engine warm for accurate results. I honestly don't know why you guys even went to the lengths you did to tear apart a good engine. All you've done is introduced issues now for no reason. -R
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12-28-2018, 09:15 PM	#18
SapphireM5 Major 711 Rep 1,107 Posts Drives: 2013 M5 Sapphire Black Join Date: Feb 2017 Location: New Jersey iTrader: (3)	Rings bad? __________________ '13 Black Sapphire Metallic - BPM Stage 1 Tune - RPI Exhaust - KW HAS Kit - 12mm spacers all around- Carbon Fiber front lip - High Kick Trunk Spoiler - Rear Roof Spoiler - IND Kidney and Fender Grills - 20% Tint all around 50% Front Windshield - PPF
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12-28-2018, 09:25 PM	#20
SapphireM5 Major 711 Rep 1,107 Posts Drives: 2013 M5 Sapphire Black Join Date: Feb 2017 Location: New Jersey iTrader: (3)	Tough to see in the pictures, but does it Look like oil is getting passed the rings? __________________ '13 Black Sapphire Metallic - BPM Stage 1 Tune - RPI Exhaust - KW HAS Kit - 12mm spacers all around- Carbon Fiber front lip - High Kick Trunk Spoiler - Rear Roof Spoiler - IND Kidney and Fender Grills - 20% Tint all around 50% Front Windshield - PPF
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12-29-2018, 02:26 AM	#22
Dwaynos Captain 380 Rep 948 Posts Drives: F10 M5 Monte Carlo Blue Join Date: May 2018 Location: UK iTrader: (0)	Did you go back and do another leakdown after ensuring everything was sealed tight and zeroing the gauge?
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