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Bob & Bob,
Oil cooler threads are all 18 mm........Not sure how reverse flow will effect thermostat
operation........Even when oil is cold (less than 150 f) thermostat open, about 10 % of
oil still flows through the cooler........Reverse flow will make all the oil from the engine
flow all the way through the cooler (further cooling it) before contacting the thermostat
and actuating it........May not be a problem except in a cold climate where it could retard
warmup or not let oil reach desired operating temp at all.........FWIW
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2
-------------- Original message from "Bob Perkinson" <bobperk@bellsouth.net>: --------------
> Bob,
> What year model is the cooler that you have? Attached are a couple of
> photos of the cooler that I have. It came with straight fittings, not banjo
> fittings. I am not sure what size the fittings threads are. I think the one
> that I have is from an earlier model but I can't be positive of that. The
> diagram that is in the Haynes manual shows a drawing of the oil system that
> has a cooler that is the same as in your picture. It shows the inlet where
> you indicate outlet and the outlet where you have the inlet. If I use this
> particular cooler it is my intention to mount it with the Thermostat facing
> up.
>
> Bob Perkinson
> Hendersonville, TN.
> RV9A N658RP Reserved
> If nothing changes
> Nothing changes
>
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