Mailing List flyrotary@lancaironline.net Message #55475
From: <Lehanover@aol.com>
Subject: Re: [FlyRotary] Re: Fwd:
Date: Wed, 29 Jun 2011 19:14:32 EDT
To: <flyrotary@lancaironline.net>
The old round style Peterson Gerotor pumps are just fine. The new square style Peterson Gerotor pumps are a disaster. We ran through three of those. Pressure section splits open to produce a massive high pressure oil leak. The second failure brought a comment from the driver who suggested I was probably putting them together wrong. He has an unnatural fear of apexes, so I guess we are even.
 
I sent the last failed pump back to Peterson for their opinion and to have them rebuild it. Their opinion was that I abused the pump and was probably running over 100 pounds of pressure. So they charged me just a bit under new pump prices for my used pump back with a new pressure section. It failed the following weekend, running exactly 100 PSI.
So you only have to hit me in the head three times to get my attention.
I went to the round Moroso three stage pump. I has run 4 years with no attention, putting out 100 PSI. Still on the car.
 
Pressure vessels are round for a reason............. 
 


Lynn: Rotor I believe Brand is Peterson. However I am always open to a direct Tutorial from one much more seasoned then myself:)While I am at it. Is it possible to have the existing system operational in case the belt driven pump were to fail? I am also thinking about a Rotrex super charger. Your thoughts
I was at a car show a few weeks back. I build oddball engines for a friend who restores cars. A fellow there had one on a Dodge charger.
Not too big. Very noisy. Like an air raid siren. Drive belt seemed under quite a load turning the pig. No room for one on a plane, plus a turbo removes the muffling problems.
 
Lynn E. Hanover

Tom Giddings
VP Avionics Sales
MIDWEST AVIONICS
200 Hardy Roberts Dr
PO Box 219
West Paducah,KY 42086
877-904 9966
Cell; 727 858-1772
FAX:270 744 3466
tom@midwestaviation.net


On Jun 29, 2011, at 3:56 PM, Lehanover@aol.com wrote:

What brand of pump? Gears or Gerotor?
 
Lynn E. Hanover
 
In a message dated 6/29/2011 12:45:21 P.M. Paraguay Standard Time, tom@midwestaviation.net writes:
Ernest: There is no room below the plate for an oil pan. The retractable nose landing gear takes up that spot. so I will be using a dry sump system with remote 3 Gal oil tank and three stage pump. I think this will be a better way to do the oil system.

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