Return-Path: Received: from relay01.roc.ny.frontiernet.net ([66.133.131.34] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2956638 for flyrotary@lancaironline.net; Thu, 29 Jan 2004 23:59:16 -0500 Received: (qmail 29263 invoked from network); 30 Jan 2004 04:59:15 -0000 Received: from unknown (HELO frontiernet.net) ([170.215.102.232]) (envelope-sender ) by relay01.roc.ny.frontiernet.net (FrontierMTA 2.3.6) with SMTP for ; 30 Jan 2004 04:59:15 -0000 Message-ID: <4019E4EB.32B134E6@frontiernet.net> Date: Thu, 29 Jan 2004 23:00:28 -0600 From: Jim Sower X-Mailer: Mozilla 4.77 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Cruddy water passages References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit <... I'm amazed at the amount of crud (scale, rust, etc.) there are in the water passages. ...> <... I think it's possible that some scale or flakes broke loose from the water passages and jammed in the small passages in the radiator ...> I too have a relatively old core. I haven't opened it up yet, but I think I should prepare for the worst. How do you remove the scale, etc.? Is there a "chemical solution" or do you just scrape and brush it out? Sure ain't looking forward to no "hand job". :-( Wishing for an easy way .... Jim S. -- Jim Sower ... Destiny's Plaything Crossville, TN; Chapter 5 Long-EZ N83RT, Velocity N4095T Finn Lassen wrote: > I've started to clean the 13B that I got out of junk yard car some 7 > years ago. > > I'm amazed at the amount of crud (scale, rust, etc.) there are in the > water passages. > > When I overhauled my first junkyard engine, I didn't pay much attention > to the water passages in the end and center housings. They are not all > that easy to get to as they pass beneath the side surfaces. > > For quite a while now I've been puzzled why my left radiator only flows > 1/10th of the right radiator, and thus runs very cold. But when I first > ran the engine it was just a hot as the right rad. So, I think it's > possible that some scale or flakes broke loose from the water passages > and jammed in the small pasasages in the radiator. > > Of course I'm going to try to clean the current engine as best I can > (any suggestions on how to get to those passages are welcome), and I > might just run the engine for some time without the rads - simply > connecting a hose from a water post to the pump inlet and thus flush it > while it runs. > > But I'd like any suggestions of suitable filters to put in line with the > hoses from the engine to the rads. Does not have to be very fine - just > enougth to stop particles that could get caught in my new rads. > > Finn > > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html -- Jim Sower ... Destiny's Plaything Crossville, TN; Chapter 5 Long-EZ N83RT, Velocity N4095T