Nc97 Posted January 8, 2010 Share Posted January 8, 2010 Has anyone seen a L8743039-1 heat exchanger installed? It is the newer Heat Exchanger and was supplied to me unpainted, (It is stainless steel). The older 85027-1 Heat Exchanger is aluminum in construction and painted with Black Wrinkle (High Heat) paint. Just wondering if anyone has seen the stainless steel version installed, or knows of a paint spec or type for the L8743039-1 exchanger. Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 8, 2010 Share Posted January 8, 2010 Has anyone seen a L8743039-1 heat exchanger installed? It is the newer Heat Exchanger and was supplied to me unpainted, (It is stainless steel). The older 85027-1 Heat Exchanger is aluminum in construction and painted with Black Wrinkle (High Heat) paint. Just wondering if anyone has seen the stainless steel version installed, or knows of a paint spec or type for the L8743039-1 exchanger. The drawing shows no requirement for paint. Why would you want to ruin a perfectly good piece of stainless steel? Quote Link to comment Share on other sites More sharing options...
Nc97 Posted January 8, 2010 Author Share Posted January 8, 2010 Tiny, where did you find the drawings? Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 8, 2010 Share Posted January 8, 2010 Where I always find them... I am authorized to view them through JEDMICS. Quote Link to comment Share on other sites More sharing options...
Nc97 Posted January 8, 2010 Author Share Posted January 8, 2010 I too am authorized to view JEDMICS, but can not locate a drawing for p/n L7843039-1. You sure that was for the stainless exchanger? Can you provide me a drawing number, discretely or publicly? Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 8, 2010 Share Posted January 8, 2010 Don't use the -1 at the end of the number, use a %. Here's the part list and notes. Quote Link to comment Share on other sites More sharing options...
Nc97 Posted January 9, 2010 Author Share Posted January 9, 2010 Thanks Tiny, but unfortunately the drawing I am after is the weld drawing number, L8743034(-1). We have seen this drawing, but there is not enough evidence to support whether this newer style heat exchanger requires paint or not. Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 11, 2010 Share Posted January 11, 2010 (edited) If it came in with no paint, then why would one assume it requires it, especially if it's CRES. Stainless normally isn't painted since it takes a special application process. That, and it would be a dumb idea, which, well, OK, this is the USAF... I digress. You said it yourself though, there is not enough evidence to support that it requires paint. Quit looking at the glass as half empty, look at it the way I do, the glass is too small. Edited January 11, 2010 by tinyclark Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 11, 2010 Share Posted January 11, 2010 BTW, the older exchanger, 85027-1, has a paint requirement on the upper level drawing, so if this new one needed paint, it should be so stated. Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 14, 2010 Share Posted January 14, 2010 Damn, dude, I hope I didn't piss in your Wheaties... Quote Link to comment Share on other sites More sharing options...
Nc97 Posted January 16, 2010 Author Share Posted January 16, 2010 Tiny, you have been a great source of information for many of my questions. In my original post, I asked if anyone has seen a CRES Heat Exchanger installed. That is what lead, not just me, but many others around me to question whether the newer style Exchanger required paint. So, have you ever seen a non-painted Heat Exchanger installed? Quote Link to comment Share on other sites More sharing options...
tinyclark Posted January 16, 2010 Share Posted January 16, 2010 Last time I saw one changed was over 5 years ago. I couldn't tell you what it looked like cause I've slept since then. I only got involved because there was a "fit" problem. Sorry. Quote Link to comment Share on other sites More sharing options...
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