 Heat Exchangers, can any maintenance be done? (YES: updated) |
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| malcolm2 |
 Jan 6 2015, 09:17 PM
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#1
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Advanced Member  Group: Members Posts: 2,749 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States 
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I am preparing to send Dr Evil a patient, my crunchy, grindy trans. I decide to remove the exhaust and the HEs to give me some room.
The HEs are complete, but they do have some loose rusty areas. Mainly at the fan end. Even a hole in one where the axle dimple is. The welds on both ends are loose or broken. I am probably losing some heat efficiency. if there is such a thing. (IMG:style_emoticons/default/blink.gif) Is there anything that I can do while the trans is gone to close up some holes and tighten up the seams? I found some repair tape made for this sort of thing. I used another similar product on my 85 VW Cabriolet. I cut up a coke can and patched the hole, then wrapped it in the heat sensitive material. Once the muffler got hot it all sealed up. Anyone do anything to these old exhausts and HEs? dealing with a '75 BTW. Thanks, Clark |
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| stevegm |
Jan 7 2015, 05:46 PM
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#2
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Advanced Member Group: Members Posts: 2,111 Joined: 14-July 14 From: North Carolina Member No.: 17,633 Region Association: South East States
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If you decide to buy a pair of HE I have a set of SS 2.0 exchangers that the previous owner had coated. They are black. They look awesome. Used about 10 minutes. I'm going with an original 1.7 and plan to sell them. I also have a couple other sets of SS 2.0 HE that are not coated.
EDIT - If your current HEs curve up at the back right before the muffler flange, I do not believe that 2.0L HEs will work unless you also change the muffler. |
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| malcolm2 |
Jan 7 2015, 07:36 PM
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#3
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Advanced Member Group: Members Posts: 2,749 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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QUOTE(stevegm @ Jan 7 2015, 05:46 PM)  If you decide to buy a pair of HE I have a set of SS 2.0 exchangers that the previous owner had coated. They are black. They look awesome. Used about 10 minutes. I'm going with an original 1.7 and plan to sell them. I also have a couple other sets of SS 2.0 HE that are not coated. EDIT - If your current HEs curve up at the back right before the muffler flange, I do not believe that 2.0L HEs will work unless you also change the muffler. Where are you in NC. My folks are in Hendersonville, below Asheville. I visit often, so freight savings would be big. Clark |
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| stevegm |
Jan 7 2015, 08:16 PM
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#4
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Advanced Member Group: Members Posts: 2,111 Joined: 14-July 14 From: North Carolina Member No.: 17,633 Region Association: South East States
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QUOTE(malcolm2 @ Jan 7 2015, 08:36 PM) QUOTE(stevegm @ Jan 7 2015, 05:46 PM) If you decide to buy a pair of HE I have a set of SS 2.0 exchangers that the previous owner had coated. They are black. They look awesome. Used about 10 minutes. I'm going with an original 1.7 and plan to sell them. I also have a couple other sets of SS 2.0 HE that are not coated. EDIT - If your current HEs curve up at the back right before the muffler flange, I do not believe that 2.0L HEs will work unless you also change the muffler. Where are you in NC. My folks are in Hendersonville, below Asheville. I visit often, so freight savings would be big. Clark I am just north of Charlotte. I am frequently in the Hickory area and could meet them. But, do you need 1.7L, 1.8L or 2.0L HE? My 2.0L HE will not work with a 1.7L (or 1.8L I think) muffler. The 1.7 (and 1.8 HE I think) curve up at the back. The 2.0L ones do not. So, you have to use the same muffler as HE (based on size of engine). I don't think there are other changes. But, others on 914world could speak to that better than I. Just let me know if any of the SS sets I have will help. |
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| mepstein |
Jan 7 2015, 08:19 PM
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#5
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914-6 GT in waiting Group: Members Posts: 20,662 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region
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QUOTE(stevegm @ Jan 7 2015, 09:16 PM) QUOTE(malcolm2 @ Jan 7 2015, 08:36 PM) QUOTE(stevegm @ Jan 7 2015, 05:46 PM) If you decide to buy a pair of HE I have a set of SS 2.0 exchangers that the previous owner had coated. They are black. They look awesome. Used about 10 minutes. I'm going with an original 1.7 and plan to sell them. I also have a couple other sets of SS 2.0 HE that are not coated. EDIT - If your current HEs curve up at the back right before the muffler flange, I do not believe that 2.0L HEs will work unless you also change the muffler. Where are you in NC. My folks are in Hendersonville, below Asheville. I visit often, so freight savings would be big. Clark I am just north of Charlotte. I am frequently in the Hickory area and could meet them. But, do you need 1.7L, 1.8L or 2.0L HE? My 2.0L HE will not work with a 1.7L (or 1.8L I think) muffler. The 1.7 (and 1.8 HE I think) curve up at the back. The 2.0L ones do not. So, you have to use the same muffler as HE (based on size of engine). I don't think there are other changes. But, others on 914world could speak to that better than I. Just let me know if any of the SS sets I have will help. Steve's right as long as you include the proper muffler hanger. |
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Posts in this topic
malcolm2 Heat Exchangers Jan 6 2015, 09:17 PM
mepstein Sounds like a bigger problem than a coke can and d... Jan 6 2015, 09:22 PM
malcolm2
Sounds like a bigger problem than a coke can and ... Jan 6 2015, 09:38 PM ndfrigi
[quote name='mepstein' post='2131031' date='Jan 6... Jan 6 2015, 10:13 PM colingreene i repaired mine, it can be done. Jan 6 2015, 09:27 PM infraredcalvin Whatever you use it needs to resist the high heat ... Jan 6 2015, 09:46 PM malcolm2 I have some FIBER FIX, but they have a style that ... Jan 6 2015, 09:51 PM r_towle Best thing you could do with those is toss them in... Jan 6 2015, 10:23 PM rhodyguy ....and REAL heat. Do the backdate. Hardest part o... Jan 7 2015, 07:42 AM malcolm2
....and REAL heat. Do the backdate. Hardest part ... Jan 7 2015, 10:08 AM malcolm2 He is a picture of the early HE currently for sale... Jan 7 2015, 10:17 AM rhodyguy you will need to covert to the earlier ducting sys... Jan 7 2015, 10:17 AM malcolm2
you will need to covert to the earlier ducting sy... Jan 7 2015, 11:21 AM bdstone914
[quote name='rhodyguy' post='2131192' date='Jan 7... Jan 7 2015, 11:48 AM r_towle
[quote name='rhodyguy' post='2131192' date='Jan ... Jan 7 2015, 03:38 PM monkeyboy I am pretty sure you will need the whole kit. New ... Jan 7 2015, 10:45 AM rjames Convert. It's one of the biggest 'stock... Jan 7 2015, 10:48 AM rhodyguy A is where the warm air elbows attach. B is where ... Jan 7 2015, 11:02 AM rhodyguy Correct on the 2.0 he's and where the pieces a... Jan 7 2015, 11:40 AM Chris H. Correct sir. The 1.7/1.8 muffler flanges are curv... Jan 7 2015, 11:41 AM barefoot If your CFO won't approve the backdate budget,... Jan 7 2015, 11:50 AM larss I had a (good) welder to repair my heat exchangers... Jan 7 2015, 11:51 AM rgalla9146 Convert ! go stainless !
Price of admissi... Jan 7 2015, 04:45 PM stevegm
[quote name='malcolm2' post='2131430' date='Jan ... Jan 7 2015, 08:27 PM rhodyguy steve, do yours have ss flanges or steel? try a ma... Jan 7 2015, 05:50 PM stevegm
steve, do yours have ss flanges or steel? try a m... Jan 7 2015, 06:02 PM colingreene Pretty sure he means his wife. Jan 7 2015, 06:01 PM pilothyer Clark.........I have a really nice set of the late... Jan 7 2015, 08:40 PM stevegm
Clark.........I have a really nice set of the lat... Jan 7 2015, 08:52 PM rjames
Clark.........I have a really nice set of the la... Jan 7 2015, 11:58 PM malcolm2
Clark.........I have a really nice set of the lat... Jan 8 2015, 08:24 AM malcolm2
Clark.........I have a really nice set of the lat... Jan 25 2015, 10:08 AM |
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