Reply With Quotechamber, intake ?
Major Contributor
Chinese M20 compression. "Won Is Lo"
Helped neighbors kid do compression test on M20. Five 150s and Won Is Lo at 60 psi. Few good shots of Marvel Mystery Oil and Won Is Low pumped out solid 175 psi. Won Is Lo is #1. Recent head gasket. Runs well so low cylinder a surprise.
What causes one cylinder to be Lo if oil test shows valves OK?
3 Grand Master
where was to oil squirted?
chamber, intake ?
Vee ave vays of dealing vid your kind...........
Major Contributor
I think the rings may be bad. The oil poured into the cylinder creates a temporary seal between the piston and the wall. Having bad compression without oil and good compression with oil signifies worn piston rings.Originally Posted by Gene in NC
deleted air conditioning
2 Grand Master
Won is Lo may be Broke Wring. My M50 had a Lo cylinder, same diagnosis, similar figures.
Later,
Dave M
10/90 Build 525im, 630,000+km, Eibach/Sachs, Engine Rebuild
*RIP Oskar the DOG*
Grand Master
why do you refer it as a "chinese" compression.?
www.KaRealtySF.com
Build Date: 05-1995 /Engine: m50tu /Automatic Transmission /ABS /NO ASC /Open Differential /EAT Chip
2 Grand Master
Maybe his neighbors are chinese? thats my best guess anyways
Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
southwest WA
Grand Master
Sorry but I'm confused by the "won is lo" What does this mean?
Cheers
Wingman
'89 525i/A Exec 193000kms
'94 Subaru Liberty AWD Wagon
Looking for Merc 300TE
NSW, Australia
Big Time Poster
mmm i think you need to say/read it with a chinese accent - not to offend any of our asian friends
kev535i south oz
Big, Big Time Poster
What about a reekey (leaky) injector on # won. That would wash the cylinder dry and give a false reading. How did the plug look?
SOLD!
3 Grand Master
if were gonna hate on the chineese in this thread....
don't take the chinese compression with the marvel mystery oil....
cause an hour and a half later, it'll just be low again..
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