This one is riveted to the bottom, towards the front. It was welded by the previous owner and then still leaks. I just want to find a good replacement instead of messing with this one.
Look closer. It is welded to the bulkhead down the sides of the heat exchanger. At the top edge it attaches to the tunnel, but down the sides it is welded. It is also welded across the bottom to the frame assembly. That is unless your sled is a frankenstien that has been butchered by a previous owner. From the factory they were welded and you can't just buy the heat exchanger.
Not available unless you find another chassis and remove it from that chassis. Then you know how it comes out....then try the same with yours. Good luck
All I have left to remove is the engine. Got to give the whole thing a good wash. Figured it would be easiest to get at it if everything else was out of the way. It was welded by the previous owner, but the way it looks, it failed too. I'm a welder and a fabricator for life. So this isn't something I can't do. I wondered how much damage was done to the inside of the heat exchanger and how much restriction it had with the weld job on it. Beings you can't see all that with the ****** weld on it now, I wanted to just get a different one and swap it.
If you cut it out it has to go back in correctly and I advise helium for gas call some scrap yards and see if they will cut one out for you if you do it that way... might not be worth the efforts though
just went through this with my 97 it is not replaceable you have to either get another chassis or they sell after market exchangers for the front of the motor some mods required I decided to part out my sled
I figured I would check it out good tonight. If it won't come out easily, I will just grind out the weld in the damage area and reweld it myself. I will try to get some pics on here also. I was going to do that last night, but got busy drinking beer instead.
I am going to pressure test the heat exchanger and see where it is leaking from and then grind out the weld and check the inner parts of that area and then weld aluminum on the outside to seal it all good without having to burn weld into the exchange itself.
Just weld it.
I have done 10 of them at least.
After welding, cap one side with a nipple and hose clamp
Then make a gauge on a radiator hose with a air shut off
Pressurize it to 20 psi and leave it for a 15 minutes.
If you don't lose any pressure, you are good
Here is my latest project that was welded
click below
I lost a stud and it damaged the front heat exchanger badly. I cleaned and cleaned and cleaned. Then I used panel bond, same stuff that the body shops use to glue car panels together, same stuff the auto manufacturers use. 3 years and close to 5000 miles later no issues. No welding required, less likely to plug up the heat exchanger. The key is simple "it must be free of ALL anti freeze residue". I used carb cleaner. Simple, cheap and it works.
I'm kind of pressed for time with this one. Just got it home two weeks ago. My mother was diagnosed with terminal cancer all over her body in July. She is still hanging it strong with us all for now but it is only a matter of time. We go and spend every weekend with her and my father to get in as much time as possible. I only have time to work on this on the week nights for now. I just need to get it ready so I have some thing else to do all winter than build bikes in my garage.
My 95 has a removable front heat exchanger that's riveted in place. I wonder how easy it would be to just cut yours out completely, weld a couple pieces across for strength and rivet one of these older ones in to place.
I've been looking at that also. I have found another chassis that I can get the whole works out of. So for now I think I'll aim towards that route. All the heat exchangers I could find early off when I started looking into for a fix for this, were all riveted in on older sleds. I thought, that would be nice!
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