Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 764398 for flyrotary@lancaironline.net; Tue, 01 Mar 2005 09:12:25 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.rr.com [24.74.185.127]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j21EBbkd017717 for ; Tue, 1 Mar 2005 09:11:38 -0500 (EST) Message-ID: <001401c51e68$9cc42720$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Filterr or not to Filter: [FlyRotary] Re: FW: Cooling system update Date: Tue, 1 Mar 2005 09:11:50 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0011_01C51E3E.B3B757B0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0011_01C51E3E.B3B757B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Words are wrapping just fine now, Mark I don't disagree that flushing a screen is certainly easier than = flushing a radiator - however, I would be concerned that the degradation = of the cooling capacity of the radiator would be a slow thing whereas = the screen could possibly become clogged much quicker. I guess in my = case (as well as Tracy's) we have not seen any clogging in over (300 = hours in my case) 1600 hours of flying. Clearly it does happen, just = makes me wonder why it does in some cases and does not in others. =20 Ultrasonic cleaning of a radiator would remove most/all scale - might be = cheaper than having a new radiator made. The service is offered by some = radiator shops - but not all by any means. Ed A ----- Original Message -----=20 From: Mark R Steitle=20 To: Rotary motors in aircraft=20 Sent: Tuesday, March 01, 2005 8:46 AM Subject: [FlyRotary] Re: Filterr or not to Filter: [FlyRotary] Re: FW: = Cooling system update Ed, The ease of cleaning a screen over backflushing a radiator shouldn't = be overlooked. If I knew that cleaning or replacing a filter at every = oil change would keep my cooling system free of junk, then I would = gladly install a filter. Once the barnacles start to form in the = radiator, I think it is time for a new radiator. =20 Do you recall the trouble Perry Mick had with his cooling system? If = I recall, he attributed it to adding stop-leak to his system. I think = it all settled in the radiator tubes. He replaced the radiator and all = was well again. =20 Mark (word wrap working on my screen) =20 =20 I am of the opinion that an inline coolant filter is likely to get = blocked sooner and more quickly than the radiator (should you have a = contamination problem). The radiator core would likely experience a = slower degradation in its cooling capability - as Chuck Dunlap's = experience indicated. Now, whether a clogged filter could withstand the = pressure head of coolant moving at 20-30 gpm or whether there would = always be some flow - hard to say. =20 By the way, Mark. On my e mail browser your emails line fail to wrap, = they simply extend to the right in one LONG sentence. =20 Ed A ------=_NextPart_000_0011_01C51E3E.B3B757B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Words are wrapping just fine now, = Mark

I don't disagree that flushing a screen = is=20 certainly easier than flushing a radiator - however, I would be = concerned that=20 the degradation of the cooling capacity of the radiator would be a slow = thing=20 whereas the screen could possibly become clogged much quicker. I = guess in=20 my case (as well as Tracy's) we have not seen any clogging in over = (300=20 hours in my case) 1600 hours of flying. Clearly it does happen, = just makes=20 me wonder why it does in some cases and does not in others. =

Ultrasonic cleaning of a radiator would = remove=20 most/all scale - might be cheaper than having a new radiator made. = The=20 service is offered by some radiator shops - but not all by any=20 means.

Ed A

----- Original Message -----
From:=20 Mark R Steitle =
To: Rotary motors in = aircraft

Sent: Tuesday, March 01, 2005 = 8:46=20 AM

Subject: [FlyRotary] Re: = Filterr or not=20 to Filter: [FlyRotary] Re: FW: Cooling system update

Ed,

The ease of = cleaning=20 a screen over backflushing a radiator shouldn=92t be overlooked. = If I knew=20 that cleaning or replacing a filter at every oil change would keep my = cooling=20 system free of junk, then I would gladly install a filter. Once = the=20 barnacles start to form in the radiator, I think it is time for a new=20 radiator.

Do you = recall the=20 trouble Perry Mick had with his cooling system? If I recall, he=20 attributed it to adding stop-leak to his system. I think it all = settled=20 in the radiator tubes. He replaced the radiator and all was well = again.

Mark

(word wrap = working on=20 my screen)

I am = of the=20 opinion that an inline coolant filter is likely to get blocked sooner = and more=20 quickly than the radiator (should you have a contamination = problem). The=20 radiator core would likely experience a slower degradation in its = cooling=20 capability - as Chuck Dunlap's experience indicated. Now, = whether a=20 clogged filter could withstand the pressure head of coolant moving at = 20-30=20 gpm or whether there would always be some flow - hard to=20 say.

By = the way,=20 Mark. On my e mail browser your emails line fail to wrap, they = simply=20 extend to the right in one LONG sentence.

Ed=20 A

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