Re: type3-d Digest V2003 #79

["Everett Barnes" <everettb@thesamba.com>]

>I never see mud accumulation in engines which have been in use. I think
the engine vibration breaks these up and the airflow blows it out. Grime
made of oil and dirt is certainly a problem, however. I see a lot of oil
coolers which need to have their airflow passages cleaned out.
>
My '63 Notch engine was the dirtiest I have ever seen on a driving car.
 Imagine driving on dirt roads for 10-15 years with leaky oil cooler seals
and a leaky oil pressure sender.  At least 40% of the case was caked with
a combination of mud+oil but the cylinder fins and oil cooler still remained
relatively clean.

On the other hand, my '55 Kombi had a very minor oil cooler seal leak. 
After a couple years of driving it in AZ, the fins had a thin layer of oily
dust.  After the fix, my oil temps. dropped via my unscientific grab-the-dipstick
method.  The oil cooler was clean.

>From this I would state that, at least in the case of leaky oil cooler seals,
I think the upright engine is more likely to blow oil over the fins and
slowly clog them up.

- Everett




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