Mailing List flyrotary@lancaironline.net Message #58762
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Standard oil cooler port.
Date: Sun, 19 Aug 2012 07:30:15 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
If you just remove the oil thermostat in the stock Mazda oil cooler - you will seriously impair your oil cooling ability.  The removal will permit major oil flow directly from input port to output port without going through the cooling coils of the oil cooler.

It is likely that you could block the cross feed hole - and remove the thermostat, but I suspect it won't be easy.

Looking at the diagram in the RX-7 manual, it appears that if you could find a threaded plug (undoubtedly metric threads with an hex socket head for inserting Allen wrench and tightening) that would screw up into the thermostat hole - you could block the oil cross feed.  Then you would, of course need to block the normal outlet port and find an oil fitting that will screw  into the hole where the large plug now exists.  I've never looked but I suspect you may have trouble finding such.

Good luck

Ed

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From: "Bobby J. Hughes" <bhughes@qnsi.net>
Sent: Saturday, August 18, 2012 10:17 PM
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Standard oil cooler port.

Chris

I think the thermostat hole can be plugged but I don't know the details.

Bobby Hughes







Sent from my iPad

On Aug 18, 2012, at 6:57 PM, "Chris Barber" <cbarber@texasattorney.net> wrote:

On the standard Mazda oil cooler there is a port next to and 90 degrees off from the port on the end of the cooler. What is this port for?  There is a large hex topped bolt in the hole.

Could I use this location to run a line to instead of the one on the end? It would greatly clean up a plumbing issue I have as currently my the port on the end protrudes out of my cowl slightly. If I can use this other port I could likely eliminate adding a blister.

Thanks.

Chris
2nd gen 13b
1.6 hrs As of yesterday. Flight five.

Sent from my iPhone 4
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