Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Thu, 17 Oct 2002 22:02:07 -0400 Message-ID: X-Original-Return-Path: Received: from fep04-mail.bloor.is.net.cable.rogers.com ([66.185.86.74] verified) by logan.com (CommuniGate Pro SMTP 4.0b9) with ESMTP id 1830922 for flyrotary@lancaironline.net; Thu, 17 Oct 2002 19:30:06 -0400 Received: from cr754193a ([24.102.183.31]) by fep04-mail.bloor.is.net.cable.rogers.com (InterMail vM.5.01.05.06 201-253-122-126-106-20020509) with ESMTP id <20021017232947.TBEP4298.fep04-mail.bloor.is.net.cable.rogers.com@cr754193a> for ; Thu, 17 Oct 2002 19:29:47 -0400 From: "Neil A. Kruiswyk" X-Original-To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EWP adapter pics X-Original-Date: Thu, 17 Oct 2002 19:30:12 -0400 X-Original-Message-ID: <000e01c27635$23f331c0$1fb76618@cr754193a> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2616 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Authentication-Info: Submitted using SMTP AUTH LOGIN at fep04-mail.bloor.is.net.cable.rogers.com from [24.102.183.31] using ID at Thu, 17 Oct 2002 19:29:47 -0400 Either Ed is asleep or I am. The 5/8" recirc hole is in the water pump body. Todd's super-looking adapter replaces the water pump body so the hole goes bye-bye. Since the EWP is temperature regulated, why would you add a bypass hole? Neil K. ZZZZZZ Ed wrote... I do have a question. If you recall -the stock Mazda water pump has a 5/8" dia hole for recirulating water through the engine while the thermostat is still closed. Once the coolant heats up, the thermostat opens and also "plugs" this 5/8" hole. Racing Beat (amongst others) state that if you do not use a thermostat and fail to plug this hole you can loss 20% of your cooling effectivness. So the question is do you plug this hole or not? Ed Anderson