Hole in Heat exchanger how to fix ?

[Vmax540]

2001 SX600R track torn around stud and allowed stud to eat away at exchanger.

-Can exchanger be removed from under the tunnel or pull engine ?
-Sled seemed to run ok but, son thought flashing light was low engine oil notice discolored head on PTO side. Should I pull head and replace gasket ?
-Anyone have an exchanger or track for sale ?

 

[ottawaair]

how's the compression on the cyl.? that looks like it got quite hot, probably didn't do the piston any good. I would pull head & cylinder to check it over if it were mine.

 

[Vmax540]

Looked in the cylinders with a piston/cylinder light and could see no damage on any of the piston tops. I wonder if the heat could of made the piston/rings brittle. I will do a compression check. Anyone know what all models and years of exchanger's will fit ? What should the torque be at on the head nuts ?

 

[jboar]

I know its not the proper fix but I fixed one like that with JBweld and its still working fine after 2 years. We intended to change the exchanger over the summer but forgot about it and he is still riding it like that with no problems.

 

[sleddineinar]

Ouch! You might be able to pull the track and get a good welder to fix that w/o pulling it out of the sled. Or with the right torch and a product called Alumaweld, you could fix it. I tried a big hole like that with Alumaweld, but all I had was a small propane torch and I couldn't get the exchanger to stay hot enough for the Alumaweld to flow. Alumaweld is an aluminum "brazing" rod for lack of a better term.

 

[ottawaair]

I've not had good luck welding heat xchangers, they bubble & pit like crazy. i think either the aluminum is not very pure or over time the coolant has absorbed into the pores.

 

[A couple of bucks]

H/exchanger is not worth fixin. Plus, the fix might leave you high & dry out in BFE. A used h/exchanger is @ 50 bucks. WHOOPEE
That cylinder should at least have the heads taken off, and visually inspect everything in the combustion chamber. This is theminimum.

 

[Yamanewf]

If it were mine................replace exchanger and remove head for a look. In my mind, if it was hot enough to discolor the paint, then it is hot enough to cause damage. definatly worth the teardown. My 2 cents.

 

[ottawaair]

I usually see wrist pin bearings shot when overheated. Naybe not shot, but when they're blue, i toss them for new ones.

 

[BBlueSRX]

I would make sure the head isnt warped or cracked. As for how to fix? start by removing the studs. they can be welded but are not fun to replace