Heat Exchangers, can any maintenance be done? (YES: updated) Options

[larss]

I had a (good) welder to repair my heat exchangers, worked out well.


/Lars S
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[r_towle]

you will need to covert to the earlier ducting system. those darned accountants get in the way every time. the 1.7/1.8 and 2.0 he's will bolt right up.

I've been practicing my "searching" and found lots of old ads with pictures. (IMG:style_emoticons/default/piratenanner.gif)

did I get it right?



It looks like the 2.0 HEs have shorter and "flatter" pipes from the HE to the muffler flange. Is that the difference? Then comes the diffs with the muffler, I guess. Am I missing any other diffs?

You also need the earlier warm air guides. Those are the plates that go between the heat exchangers and the engine case. And a matching muffler bracket for which ever type muffler you get. The only parts from you system that are used are the flapper boxes. I gave most if not all of those parts and a pair of SSI heat exchangers if you decide to go that route.

I was hoping Bruce would chime in, he should have everything.

rich

[rgalla9146]

Convert ! go stainless !
Price of admission is tough but you can subtract the money you would waste on attempting to repair those late boxes.
After converting there will be no hassle finding parts like there is with late boxes.
And you'll have heat.
Accountant ....... Really ?

[stevegm]

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.

[rhodyguy]

steve, do yours have ss flanges or steel? try a magnet if you're unsure.

[colingreene]

Pretty sure he means his wife.

[stevegm]

steve, do yours have ss flanges or steel? try a magnet if you're unsure.

Do you mean the vertical plates that the muffler bolts to? If so, a magnet does not stick to them. I just checked. Here are a couple photos of the coated ones. Sorry the photos aren't better. It is cold in the garage so I was in a hurry. I also have two sets of SS exchangers that have not been coated.

[malcolm2]

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

[stevegm]

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.

[mepstein]

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.

[stevegm]

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.

Good point, Mark. The muffler hangers are different. So, if you go with 2.0L HE and muffler, you need the 2.0 hanger. I have one that I will include with the HE.

[pilothyer]

Clark.........I have a really nice set of the late (75 - 76) you can have for free. they look like stainless. Let me know if interested and we can arrange to get them to you.
Jerry

[stevegm]

Clark.........I have a really nice set of the late (75 - 76) you can have for free. they look like stainless. Let me know if interested and we can arrange to get them to you.
Jerry

That's a deal you can't beat. Take it. :-)

[rjames]

Clark.........I have a really nice set of the late (75 - 76) you can have for free. they look like stainless. Let me know if interested and we can arrange to get them to you.
Jerry

That's a deal you can't beat. Take it. :-)

Free is good, but they didn't make a late model in stainless and I still say go for the backdate. Extra horsepower and more heat!

[malcolm2]

Clark.........I have a really nice set of the late (75 - 76) you can have for free. they look like stainless. Let me know if interested and we can arrange to get them to you.
Jerry

Thanks Jerry. That will be a good middle ground fix for now. Better than HEAT TAPE AND A BUD CAN. (IMG:style_emoticons/default/beer.gif)

I can start to accumulate the backdate parts and make that my next upgrade.

I'll call you soon.

Thanks to everyone else for their input, I did learn something this week.

Clark

[malcolm2]

Clark.........I have a really nice set of the late (75 - 76) you can have for free. they look like stainless. Let me know if interested and we can arrange to get them to you.
Jerry

UPDATE: My apologies to all the back-daters out there, but I went with cheap and available and good condition on this one. (IMG:style_emoticons/default/shades.gif)

I hooked up the Jerry and relieved him of ALL of his early HEs and air guides, etc....

He was correct, he had enough stuff to make a nice set. The airguides were only slightly deteriorated in the hot spots. I removed air guides cleaned them up and hit them with some rattle can exhaust paint.

I also sealed up any and all cracks or holes in the HE and joints between HE and exhaust pipe with Permatex muffler seal from Advance Auto. My other 3 FLAP stores did not have Permatex. Also bought a Mr Gasket 10x10 sheet to make me some triangle gaskets. Plus the small thin gasket at the mouth of the air guide.

Looking forward to getting the tranny back from the Dr so I can put it all together again. (IMG:style_emoticons/default/driving-girl.gif)




I know it is rare, but if anyone WANTS late HE, etc... I got 'em and you can have them for pick-up or shipping cost. Lots to choose from.

Clark