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javadog javadog is online now
Join Date: Apr 2005
Location: In the wind...
Posts: 30,090
That’s not possible. If the cat plugged completely, the engine would stop immediately. As long as it was running, exhaust was flowing in only one direction through the cat. The flow may be substantially reduced but it is still moving in the same direction as normal.

Even if what you say is possible, and it is not, it still doesn’t get into the crankcase.
Old 09-09-2020, 01:54 PM
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