Re: Turbo cool down

Posted by buickanddeere on March 23, 2006 at 14:22:41 from (216.183.150.45):

In Reply to: Turbo cool down posted by NC Wayne on March 21, 2006 at 21:31:01:

Unless the turbo is allowed to spool down to minimum rpm befroe shutting down then extra bearing/seal wear will occur.
If the turbo bearing section exceeds about 300F with mineral oil or 475F with a quality synthetic. That oil will coke into abrasive soot and ash.
So the 1-2 minutes required for the turbine wheels to slow down is likely enough cooling time. This is in addition to the period of time most machines see between being worke dhard and being driven at light loads to it's parking spot.
Anyone who gives the throttle a couple of snorts just before shutdown needs a good swift kick in the *ss.

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