From: <daveleonard@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: More run time, fewer issues
Date: Tue, 16 Mar 2004 5:04:34 -0500
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>    Are you running full engine oil pressure (70 psi+) to the turbo. I seem 
>  to remember someone else over powering the Turbo oil seal. The problem 
>  was solved with a restrictor in the Turbo oil line to reduce the pressure
>  to about 40 psi. This was using a TO4 Turbo. If you are using the stock 
>  Mazda Turbo I do not know if this info holds true. I do not know if Mazda
>  put a restrictor in their oil feed line. If you are using the stock feed
>  line check it out. If using a feed line you supplied it will need restricted
>  if the stock line was. On the other hand the oil seal may just be worn. IMHO
> 
>     Kelly Troyer 

Thats a great thought, Kelly.  I'll see if I can dig up the rest of the stock oil line.

Speaking of oil pressure.  I have 70+ psi on engine start and warm up, but after the oil gets hot the oil pressure drops into the 30's as soon as I throttle back.  Is this normal?

Perhaps those 2 issues are related.

Dave Leonard