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914World.com _ 914World Garage _ Heat exchangers rebuild.

Posted by: mb911 Oct 10 2018, 10:30 AM

Because I can .[attachmentid=670389] Attached Image

Posted by: mb911 Oct 10 2018, 10:31 AM

Attached Image

Posted by: db9146 Oct 10 2018, 10:58 AM

Ben,

Given the apparent condition of the tubes you haven't replaced, is it really worth the effort? what about holes inside the clamshells?

Posted by: VaccaRabite Oct 10 2018, 11:31 AM

QUOTE(db9146 @ Oct 10 2018, 12:58 PM) *

Given the apparent condition of the tubes you haven't replaced, is it really worth the effort? what about holes inside the clamshells?


"Becasue I can" almost never comes attached to a statement that makes sense for purely logical reasons.

Instead its almost always attached because of the challenge, art, or just because it seemed like a good thing to do at the time.

To me, this seems like a bit of all three.

Zach

Posted by: mb911 Oct 10 2018, 12:15 PM

Actually inside the clam shell is perfect.. I vote scoped..

Sit back and wait for the finished results.

Posted by: IronHillRestorations Oct 10 2018, 12:23 PM

We coulda made a deal. I made a set of L&R jigs for replacing the rear tube

Posted by: mb911 Oct 10 2018, 01:55 PM

QUOTE(IronHillRestorations @ Oct 10 2018, 10:23 AM) *

We coulda made a deal. I made a set of L&R jigs for replacing the rear tube



I made a simple Jig to do the job.. Gonna spray weld the pock marks.


Posted by: restore2seater Oct 10 2018, 03:47 PM

QUOTE(mb911 @ Oct 10 2018, 02:55 PM) *

QUOTE(IronHillRestorations @ Oct 10 2018, 10:23 AM) *

We coulda made a deal. I made a set of L&R jigs for replacing the rear tube



I made a simple Jig to do the job.. Gonna spray weld the pock marks.


spray weld? Had to look that up. Is that something you do at home or in your class? Would be cool to see it being done in a video in this thread. poke.gif welder.gif

Posted by: mb911 Oct 10 2018, 04:51 PM

QUOTE(restore2seater @ Oct 10 2018, 01:47 PM) *

QUOTE(mb911 @ Oct 10 2018, 02:55 PM) *

QUOTE(IronHillRestorations @ Oct 10 2018, 10:23 AM) *

We coulda made a deal. I made a set of L&R jigs for replacing the rear tube



I made a simple Jig to do the job.. Gonna spray weld the pock marks.


spray weld? Had to look that up. Is that something you do at home or in your class? Would be cool to see it being done in a video in this thread. poke.gif welder.gif



I will see what I can do..

Posted by: mb911 Oct 11 2018, 11:16 AM

Attached Image

Posted by: mb911 Oct 11 2018, 11:17 AM

Attached Image

Posted by: mepstein Oct 11 2018, 11:50 AM

Seeing how even version 2.0 of the dansk reproductions leave something to be desired, I think it’s really worth bringing these back.

Posted by: johnhora Oct 11 2018, 12:50 PM

Isn't it crazy how these things rust and get all the pock marks...I'm really amazed at the good condition on the inside tubes on this set.

mepstein...what are you taking about on the new dansks ones...are they not the same?

somebody is making new style HEs biggrin.gif

Posted by: mepstein Oct 11 2018, 02:06 PM

QUOTE(johnhora @ Oct 11 2018, 02:50 PM) *

Isn't it crazy how these things rust and get all the pock marks...I'm really amazed at the good condition on the inside tubes on this set.

mepstein...what are you taking about on the new dansks ones...are they not the same?

somebody is making new style HEs biggrin.gif

Yes, dansk is making the new ones but they have some issues. They are not an exact copy of the originals. Version one didn’t fit. Version 2 has some issues.

Posted by: mb911 Oct 11 2018, 03:02 PM

QUOTE(johnhora @ Oct 11 2018, 10:50 AM) *

Isn't it crazy how these things rust and get all the pock marks...I'm really amazed at the good condition on the inside tubes on this set.

mepstein...what are you taking about on the new dansks ones...are they not the same?

somebody is making new style HEs biggrin.gif



I think becuase they get fresh air around them blowing constantly so they must control moisture or not heat up as much?


Posted by: mb911 Oct 11 2018, 03:04 PM

Also the best bang for the buck are my stainless ones. Attached Image

Posted by: seanery Oct 11 2018, 03:19 PM

I soooo wish I could buy a pair of your stainless HE's right now! Soon. Hopefully, soon!

Posted by: mb911 Oct 11 2018, 03:50 PM

QUOTE(seanery @ Oct 11 2018, 01:19 PM) *

I soooo wish I could buy a pair of your stainless HE's right now! Soon. Hopefully, soon!



Jan 1 there is gonna be a big price increase..

Posted by: seanery Oct 11 2018, 07:48 PM

QUOTE(mb911 @ Oct 11 2018, 05:50 PM) *

QUOTE(seanery @ Oct 11 2018, 01:19 PM) *

I soooo wish I could buy a pair of your stainless HE's right now! Soon. Hopefully, soon!



Jan 1 there is gonna be a big price increase..


I've read your posts and I just can't get it done by then. Sins of the past fuck up the future sometimes.... ;-) Soon, though

Posted by: mb911 Oct 18 2018, 10:22 AM

So I rebuilt the other side today and confirmed that the factory tubing is cast steel.. This is a very similar setup to the -4 heat exchangers material.. That is why there is the pock marks.. It is very thick material. Welds nice ..


Posted by: mb911 Oct 18 2018, 10:52 AM

Attached Image

Posted by: JeffBowlsby Oct 18 2018, 11:26 AM

Easy enough to pressure test these just to be safe.

Posted by: mb911 Oct 18 2018, 02:20 PM

QUOTE(JeffBowlsby @ Oct 18 2018, 09:26 AM) *

Easy enough to pressure test these just to be safe.



Yup..

Posted by: maf914 Oct 19 2018, 08:55 AM

Ben, You do nice work. Is that finish a ceramic coating?

Posted by: mb911 Oct 19 2018, 11:30 AM

QUOTE(maf914 @ Oct 19 2018, 06:55 AM) *

Ben, You do nice work. Is that finish a ceramic coating?



No just powder paint. Most of it will burn away

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