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Message-ID: <4ACA6ABA.4010301@gmail.com>
Date: Mon, 05 Oct 2009 16:52:58 -0500
From: Dave <david.staten@gmail.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Seepage, no more.  Oil system
References: <list-3875274@logan.com>
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Chris Barber wrote:
>  
> I do know the system was plumbed in series, however, my ignorance 
> prevents me from knowing why re-plumbing them in parallel would change 
> things.  Does plumbing in parallel prevent the front cooler from being 
> a restriction point since oil can flow past the front cooler while 
> still filling it with hot oil for cabin heating??? Hmm, not sure how I 
> would plumb this.
>  
Without a temperature bypass or manual shutoff valve placed on the front 
cooler oil tubing, you may be re-visiting the current problem - cold 
thick oil getting hammered down 22 feet round trip of 1/2" aluminum 
tubing through a nose radiator.

Pressure follows the path of least resistance, so if the main mazda 
cooler's vernitherm is open, bypassing that cooler, it may be a non-issue.

I have no guarantee that vernitherming the nose cooler (at the firewall, 
at the fittings) will not cause the current problem, but I feel 
comfortable estimating that it is much less likely.

I'm not even sure theres a way to get a vernitherm off a mazda cooler 
without messing it up.

Dave