X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from mail04.syd.optusnet.com.au ([211.29.132.185] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with ESMTPS id 1661605 for flyrotary@lancaironline.net; Sun, 10 Dec 2006 17:59:52 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.132.185; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-210-143.dsl.nsw.optusnet.com.au [220.236.210.143]) by mail04.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id kBAMwuC3011140 for ; Mon, 11 Dec 2006 09:58:58 +1100 Message-ID: <003001c71cae$c84d60f0$8fd2ecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] PSRU oil pump update Date: Mon, 11 Dec 2006 08:58:25 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0029_01C71D02.84A0CFA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0655-1, 08/12/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0029_01C71D02.84A0CFA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable George, Did you take Tilton to task on the issue, a nice profit margin and = expecting to double-up on your misfortune, this is not what I consider a = reputable company. George (down under) My oiling system for the RD-1A has been challenging. I used a Tilton gearbox pump ($199 from Pegasus Racing) to circulate = the oil through a transmission cooler, to cool my homemade tranny based = gearbox. This worked fine, as there was no pressure involved. The system appeared to work fine on the RD-1A at first, but a leak = developed in the head of the pump, after a few hours. I ordered both rebuild = kits for the pump, but they did not contain the seal that had failed, which was the internal relief valve seal. = After many consults with Tilton, they explained that I would need a new pump, as = that seal was not available. I then found the exact same pump at Tractor supply = for $70. It is a Flojet water spray pump. I replaced the seal and was back in = business for another few flights. I then plugged off the internal (leaking) relief valve, and installed = a hydraulic adjustable relief valve in the pressure line. This item has solved = the leak for the time being. The pressure is set at 50 psi (it will adjust to = above 100psi). I have an pressue alarm and temp sender on the pressure line, we'll = see. George Graham Mazda Rx7ez N4449E Sarasota Florida -SRQ -------------------------------------------------------------------------= ----- Everyone is raving about the all-new Yahoo! Mail beta. ------=_NextPart_000_0029_01C71D02.84A0CFA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
George,
Did you take Tilton to task on the = issue, a nice=20 profit margin and expecting to double-up on your misfortune, this is not = what I=20 consider a reputable company.
George (down under)

My=20 oiling system for the RD-1A has been challenging.

I used a = Tilton=20 gearbox pump ($199 from Pegasus Racing) to circulate the
oil = through a=20 transmission cooler, to cool my homemade tranny based gearbox.
This = worked=20 fine, as there was no pressure involved.

The system appeared to = work=20 fine on the RD-1A at first, but a leak developed
in the head of the = pump,=20 after a few hours.  I ordered both rebuild kits for the pump, but = they=20 did not contain
the seal that had failed, which was the internal = relief=20 valve seal.  After many
consults with Tilton, they explained = that I=20 would need a new pump, as that seal
was not available. I then found = the=20 exact same pump at Tractor supply for $70.
It is a Flojet water = spray=20 pump.  I replaced the seal and was back in business for another = few=20 flights.

I then plugged off the internal (leaking) relief = valve, and=20 installed a hydraulic
adjustable relief valve in the pressure = line. =20 This item has solved the leak for
the time being.  The = pressure is set=20 at 50 psi (it will adjust to above 100psi).

I have an pressue = alarm and=20 temp sender on the pressure line, we'll see.


George = Graham
Mazda=20 Rx7ez N4449E
Sarasota Florida -SRQ

Everyone is raving about the=20 all-new Yahoo! Mail beta. ------=_NextPart_000_0029_01C71D02.84A0CFA0--