Friday, December 01, 2006

Oil cooler shutoff modification





















I modified the oil cooler mount so I could shut off the cooling air to it. I have found that in the winter here in Canada that it is impossible to get the oil temperature up to operating temperature without restricting the air flow to the cooler. I don't like fixed restrictions that you can only adjust bu pulling the cowl. (What do you do on a trip and the oil temp gets too high)
So I added a flap into the oil cooler mount. The hinge is rivited to the firewall using blind pop rivits. (the ones used in the fuel tank back bulkhead)
The door does not go completely flush againts the firewall when open due to the small bracket that the cable connects to.
It does close all the way. I don't know if the air pressure at 200 mph will be enough to force the door open in flight. I'll cross that bridge when I get to it.
I made some cable anchors for the throttle, mixture, and prop cables from 1/2 inch bulkhead fittings. The ID of the fitting is 3/8 in which matches the cable outer diameter. I cut the fittings lengthways, and put a crosscut at the end. Cable goes in, nut gets tightened to firewall, and the end nut and ferrel go on the end. When tightened, the cable is held very securely. A bit of high temp silicone or proseal when final assembly should complete it.

Comments: Post a Comment



<< Home

This page is powered by Blogger. Isn't yours?