X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from hrndva-omtalb.mail.rr.com ([71.74.56.122] verified) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4175147 for flyrotary@lancaironline.net; Mon, 22 Mar 2010 20:02:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=71.74.56.122; envelope-from=clouduster@austin.rr.com Return-Path: X-Authority-Analysis: v=1.0 c=1 a=YWISOAoqAAAA:8 a=TDfWlKphKgfNnsUwSYgA:9 a=lmT94zmVA7R-OWOqrfwIE7stKBEA:4 a=CjuIK1q_8ugA:10 a=4PR2P7QzAAAA:8 a=p0uCMDRfvKYHcMGinqwA:9 a=qSpxaJGGYmVZjGocr1sA:7 a=XuSepqxPnyVHEiaxHwaVNmkKCqoA:4 a=VvPTdWEW8HYA:10 a=djSSOgbfo6cA:10 X-Cloudmark-Score: 0 X-Originating-IP: 66.25.157.35 Received: from [66.25.157.35] ([66.25.157.35:2181] helo=[10.0.0.99]) by hrndva-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.2.39 r()) with ESMTP id 9D/FB-28072-9E408AB4; Tue, 23 Mar 2010 00:01:46 +0000 Message-ID: <4BA804E8.5050705@austin.rr.com> Date: Mon, 22 Mar 2010 19:01:44 -0500 From: Dennis Haverlah User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] coolant capacity References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------050706090602070201060905" This is a multi-part message in MIME format. --------------050706090602070201060905 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit I don't know exactly how much coolant it will take - could be as much as 2.5 gal. All depends on the size of the hoses, radiators etc. I do know that you can easily think it is full enough and still have air trapped in the water pump - this has resulted is some builders having to rebuild the motor!! I installed a radiator drain valve in the top of the water pump outlet. When I refill my system, I open the valve and leave it open until coolant leaks out during the fill process. After installing and using the valve I have not had any problem with air trapped in the pump. You should also make sure the water pump outlet hose and return hose feel warm during the first few minutes of running. This confirms there is coolant flow to the radiator. Dennis H. Reneisi/RV-7A kevin lane wrote: > how much does a renesis hold approx? I have been priming my engine > for a first run. the first gallon seemed to all go into the > radiator. today a second gallon seemed to empty into the block, once > I loosened the bubble line from the front rotor back to the expansion > tank. I've been cranking the engine, tho' I doubt it pumps much at > such slow rpm. my expansion tank is the highest point in the cooling > system. [by 3"?]. just wondered how much air might still be > trapped. I realize that I will need to run it a bunch to get all the > air out. any big problems [besides noise and burning up my trailer > floor] with not having a complete exhaust system yet? I have the > exhaust manifold going back and then pointing straight down at the > mock-up firewall. > > > KevinLane Carpentry > www.KevinLaneCarpentry.com --------------050706090602070201060905 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit I don't know exactly how much coolant it will take - could be as much as 2.5 gal. All depends on the size of the hoses, radiators etc.

I do know that you can easily think it is full enough and still have air trapped in the water pump - this has resulted is some builders having to rebuild the motor!!
I installed a radiator drain valve in the top of the water pump outlet. When I refill my system, I open the valve and leave it open until coolant leaks out during the fill process. After installing and using the valve I have not had any problem with air trapped in the pump.

You should also make sure the water pump outlet hose and return hose feel warm during the first few minutes of running. This confirms there is coolant flow to the radiator.

Dennis H.
Reneisi/RV-7A

kevin lane wrote:

how much does a renesis hold approx? I have been priming my engine for a first run. the first gallon seemed to all go into the radiator. today a second gallon seemed to empty into the block, once I loosened the bubble line from the front rotor back to the expansion tank. I've been cranking the engine, tho' I doubt it pumps much at such slow rpm. my expansion tank is the highest point in the cooling system. [by 3"?]. just wondered how much air might still be trapped. I realize that I will need to run it a bunch to get all the air out. any big problems [besides noise and burning up my trailer floor] with not having a complete exhaust system yet? I have the exhaust manifold going back and then pointing straight down at the mock-up firewall.

KevinLane Carpentry
www.KevinLaneCarpentry.com

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