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turbo flame trap 700 1988

posted by  someone claiming to be Evan S on  Wed Oct 3 09:23 CST 2001 [RELATED]

I just read on the 700/900 FAQ that, and I quote,

"Diagnostics: Check Flame Trap Function. [Response: Gene Stevens] Before replacing the rear seal, have you made absolutely sure that the crankcase vent system isn't plugged? The N/A engine uses a flame trap (which doesn't belong on the Turbo, but that doesn't stop some guys from installing one anyway) and when it gets blocked causes excessive crankcase pressure, pushing oil out wherever it wants to go. I've heard of new replacements seals being pushed out of the bore from the same pressure that caused the old one to leak. Curing the pressure may slow or stop the leak."

The operative part of that quote is "which doesn't belong on the turbo"... crankase pressure just blew my front main seal, and I want to ensure this doesn't happen again.

Does the turbocharged 740 have a flame trap? If so, what tools are neccessary to clean it? If not, what is the equivelent? I had oil spraying from the filler cap, and the aforementioned oil leak. Everything points to high crankcase pressure.

Help!

Evan





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