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Join Date: Apr 2005
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Originally Posted by cabmando View Post
Not true. It plugged completely once and it did indeed run. I'm telling you from experience. I'm not guessing. The engine shut off completely and black smoke belched out of the tailpipe when it happened the first time but then started and ran and yes the cat was completely plugged off.

How does silicone from a lack of filtration get into the crankcase?
OK, explain how an engine can run with no flow through the cat. Think about it, for a minute, before answering.

Silicon (no e on the end) can get into an engine in a bunch of different ways. What you are likely referring to is silicon from dust, which gets into the cylinders because of inadequate air filtration. Some small percentage of this gets in the crankcase via the blow-by gassed that get past the piston rings.

In any event, read this for more information on silicon in an engine oil analysis. Itís not always necessarily bad news. 2f
Old 09-09-2020, 03:38 PM
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