Been there, done that. You'll find that part at Haydays without a problem. But, in the winter if that happened a little JB Weld would hold up for a weekends riding. Those heat exchangers are a chore to replace.
this is the 2nd sled that this happened to this past winter, i got one heat exchanger welded up and plan to get this one welded too. I already have a big enough list at haydays, lol. 2 new belts, 1 pair of carbides, 1 pair of slides, 1 track, hopefully some new clutches, and anything else i find. luckily most of the list is for my dads sled so i dont have to pay for it obviously since the sled aint mine.
I should start charging my dad for labor on his sled lol. I've got 5 hours into the sled already (taking studs out of the old track takes forever, but with an impact wrench it goes quite nicely) I know if i didn't do any of this, it wouldn't be done till november. My dad FLIPPED out when i said since we had the trailer out to cut down an uprooted tree that almost fell on the sleds, that we should work on his sled. He wasn't happy, but me and my mom agreed that we should get it done, and we all know, mommy rules. I ended up doing everything except my dad helped me pull the driveshaft out because the cogs were pinched on the lugs of the track but that took a minute.
Here's some step by step pics that i posted on another site. It's a tool site and guys didn't think i used my tools much if i don't work on cars. I proved them wrong
My dad's sled-1999 Polaris XC SP 700
An overview of what i tore apart
Bogey wheels, limiter straps, and shocks
Torsion springs and some shafts
Front and Rear torque arm
My work area (i never got off my butt.... lol)
All the tools to do the job (1/2" drive sae impact sockets, impact wrench, 3/8 & 1/2 ratchet and sae sockets, allen wrenches, a pliers, and a couple box end ratcheting wrenches along with the compressor)
Track off, goofy lookin huh?
The inside of the tunnel
The bad heat exchanger, as you can see, a stud hit it MULTIPLE times
Chaincase torn apart
Clutch off, driveshaft housing out
POS track
The stud that tore out that ruined my winter (even though this was my dads sled, the exact same thing happened to my sled)