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

[malcolm2]

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

[rhodyguy]

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.

[malcolm2]

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?

[bdstone914]

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.

[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