| Author | Topic |
|---|
Location:
Brisbane
Registered:
May 2002
|
|
Re: oil pressure drama's???
|
Thu, 11 December 2003 05:13
 
|
 |
Blowby occurs when the compression rings aren't sealing properly, allowing some pressure from the combustion chamber to leak past and into the crankcase. Obviously a pressurised crankcase will cause the phenomenon you described above.
Blowby itself isn't necessarily damaging to the engine but it is a symptom of existing wear in your engine. Worn compression rings will result in reduced cranking pressure which is obviously bad for power, and combustion gases will gradually contaminate the oil thus reducing its effective lifespan.
As for fixing it, that should be fairly obvious - install new rings and hone the bores (or overbore if they're too worn). Basically you're looking at a bottom-end rebuild.
|
|
|
