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On Jun 15, 2006, at 5:24 PM, Joe Hull wrote:
I don't think that you can just remove the thermostat
from the oil cooler. I think that it opens to close
off the bypass port and opens the path through the oil
cooler, or something like that.
Ok. I took it out because yesterday I flew around the patch with my new and
much bigger scoop and had higher temps and felt end of the oil cooler and it
was cool to the touch. So I started to think something wasn't letting the
oil through the cooling coils/fins. I thought removing the thermostat would
open up the core - guess I've got that backwards!
When I had my engine being rebuilt last month I flushed the oil cooler with
mineral spirits and took out the thermostat and tested it in the kitchen for
correct operation. It opened (grew or shrunk - can't remember) at about 175F
if I recall. Whatever Haynes says it's supposed to do - it did.
Thanx,
Joe Hull
Cozy Mk-IV #991 (In Phase1 Flight Test - 29.1 hrs flown)
Redmond (Seattle), Washington
Joe, I'm using the same oil cooler and even with my turbo here in FL it was adequate. Looks like your thermostat is open all the time? When you remove it, you open the flow to go directly from the IN chamber into the OUT chamber without being forced to take the long path through the core. If you are removing the thermostat you must plug the bypass hole.
Reversing the in and out hoses does not seem to affect the performance.
Buly
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