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kcusscam

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Howland, Maine
Ok I went for a ride today got back home eat supper and then went outside to change my oil. Before I put the side panel back on I started the sled to make sure the filter and plugs were not leaking and noticed that the front heat exchanger was really leaking coolant. After really looking it appears that it was sliced about half the length of the exchanger on the right hand side; sure enough broken outer stud, it must have broke off and sliced open the exchanger. I have a few questions.

1. I assume because I didn't get a warning light that it must have happened close to home and that no damage (other than exchanger) should have been done because when I started it after changing the oil coolant was actually coming out; does this sound correct? The tank was empty when I checked.

2. My second question is this; does the exchanger have channels or is it just one big cavity? It looks like it could be welded as long as there are no channels.

Thanks
Jeremy
 
had the same happen to my old warrior last season,my warning light came on,stopped and looked underneath,sure enough,it was leaking bad,damn stud went thru,a guy i work with tig welded it,not sure if it has channels in it,i know it worked fine for me,didnt have to pull the suspension either,the hole was low enough,we did have a hard time sealing the hole with the tig though,even with the coolant gone the heat would still attract some drops of coolant and just as we had the hole sealed,the coolant would make its way thru a small pin hole thru the weld,we undid a few rad hose and rad cap to releive the pressure and we managed to do the job,it took over an hour to fill in a 1/8 hole and that guy is the best tig welder in our area,but it can be done.this is why i dont stud anymore cuz 1 little stud can ruin a day's ride
 
I bought my nytro about 3 weeks ago, and the guy who had it before me ran something over, and caught the lower edge of the front HE and ripped a hole in it. Pat's Yamaha in Greenland, MI had pulled the HE out and welded the hole. I've had no issues in almost 1000 miles since I bought it, so it can definitely be done.

Another option is to buy a replacement - they can be had on ebay for not too much. I'm thinking about buying one to keep on hand in case mine goes junk, or in case I stud test it by accident and put a second hole in it.
 
Can the exchanger be taken out without taking the suspension and track out, I know it could be welded in place if I took them out but I just am not in the mood, if not then I am thinking this will be a fall project. It's getting time to think about boating season.
 


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