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Z4M S54 Cylinder Compression Pressures
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Argenta
- Senior Member
- Posts: 1051
- Joined: Sat Feb 07, 2015 7:49 pm
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R60BBA
- Senior Member
- Posts: 1776
- Joined: Sat Sep 30, 2017 7:53 pm
- Location: London, United Kingdom
Z4M S54 Cylinder Compression Pressures
Have you done a leak down test?Argenta wrote: ↑Mon Jan 23, 2023 8:41 pm Sorry to hijack thread, but I got 11.8 on all cylinders but nr.2, 10bar. Got some oil in there, and bam up to 11.9bar. So….
Snapped pistonrings..?
Engine has been really cared for with calm cold starts etc, but yeah over 200000km’s now.
A few trackdays but never mistreated.
I only tested cos I have a SLIGHT misfire on stone cold startups for 1-2min.
I sense a whiff of something expensive…
Current: 2002 E46 M3
Current: 2005 997 Carrera S
Gone: 2004 R53 Cooper S
Gone: 1998 E31 840Ci Sport
Gone: 2007 Z4 E86 3.0Si Sport
Gone: 2001 Z3 E36/7 2.2i San Remo Individual
Gone: 2015 F21 116d M Sport
Gone: 2012 A3 Sportback 1.2TFSI
Current: 2005 997 Carrera S
Gone: 2004 R53 Cooper S
Gone: 1998 E31 840Ci Sport
Gone: 2007 Z4 E86 3.0Si Sport
Gone: 2001 Z3 E36/7 2.2i San Remo Individual
Gone: 2015 F21 116d M Sport
Gone: 2012 A3 Sportback 1.2TFSI
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Argenta
- Senior Member
- Posts: 1051
- Joined: Sat Feb 07, 2015 7:49 pm
Z4M S54 Cylinder Compression Pressures
Dont have the equipment, a pro mechanic (on S54’s) I know does, tho. Will check later this week.
Still.. Can't be much else than rings by now.
Still.. Can't be much else than rings by now.