So my ski had been running pretty much perfectly for the 4 gallons of oil I've went through this season after a fresh rebuild, up until I fried my stator due to a stupid mistake.
The first ride out this season, my pipe and waterbox weren't getting much water at all due to lack of back pressure from short hoses and the fact that I put the restrictor before my fcv. This caused my chamber to melt my shop vac air intake tubes, along with the cooling line right off of my stinger. I'm pretty sure it made my waterbox heat up like crazy too due to the fact the contact cement on it turned dark brown and looks like hell, plus the metal outlet looks like it melted the loom I put on my throttle cable, and it melted the cable sheath in one spot.
Fast forward to second ride- restrictor put in proper position. Put the ski in the water on the trail and tuned my cold fusion pissers until I got enough flow going into all circuits, and ended up putting a hose clamp on both lines coming out of the head to tune the pressure as well. Got the cooling dialed in perfect. Chamber still runs a little cool to be on the safe side, but everything is at a good temp and has been for the last 30+ hours and I haven't touched anything.
So today, I pull my tank to access my flywheel and stator but I was surprised when I looked at my waterbox. There's a bunch of cracks in it and some of them are very bad and definitely fractured the structure. However I dont think there's an exhaust leak because my ski runs perfect, but I can flex the smc when I push hard on it. Cracks run up to the glue seam too. Plus it's all black and oily on the outside which seems weird if it's all sealed. If I had an exhaust leak somewhere my ski would run like poop.
I have never heard a backfire before and I know it had been over heated once, but I don't really monitor my waterbox temp at all since everything else is at a perfect temp, but my flow control valve is turned in quite a bit and I have a 3mm restrictor right in front of it. I feel like more would be melted and messed up if my waterbox was getting too hot? I don't know if heat is why it's cracked. I pound the hell out of my ski so I wonder if it's from impacts? My hoses are kinda ballooned where they clamp on but isn't that normal?
And my dual cooling routing is what zack at php recommended so it's right..
Pics:
Thanks for the insight ahead of time!
The first ride out this season, my pipe and waterbox weren't getting much water at all due to lack of back pressure from short hoses and the fact that I put the restrictor before my fcv. This caused my chamber to melt my shop vac air intake tubes, along with the cooling line right off of my stinger. I'm pretty sure it made my waterbox heat up like crazy too due to the fact the contact cement on it turned dark brown and looks like hell, plus the metal outlet looks like it melted the loom I put on my throttle cable, and it melted the cable sheath in one spot.
Fast forward to second ride- restrictor put in proper position. Put the ski in the water on the trail and tuned my cold fusion pissers until I got enough flow going into all circuits, and ended up putting a hose clamp on both lines coming out of the head to tune the pressure as well. Got the cooling dialed in perfect. Chamber still runs a little cool to be on the safe side, but everything is at a good temp and has been for the last 30+ hours and I haven't touched anything.
So today, I pull my tank to access my flywheel and stator but I was surprised when I looked at my waterbox. There's a bunch of cracks in it and some of them are very bad and definitely fractured the structure. However I dont think there's an exhaust leak because my ski runs perfect, but I can flex the smc when I push hard on it. Cracks run up to the glue seam too. Plus it's all black and oily on the outside which seems weird if it's all sealed. If I had an exhaust leak somewhere my ski would run like poop.
I have never heard a backfire before and I know it had been over heated once, but I don't really monitor my waterbox temp at all since everything else is at a perfect temp, but my flow control valve is turned in quite a bit and I have a 3mm restrictor right in front of it. I feel like more would be melted and messed up if my waterbox was getting too hot? I don't know if heat is why it's cracked. I pound the hell out of my ski so I wonder if it's from impacts? My hoses are kinda ballooned where they clamp on but isn't that normal?
And my dual cooling routing is what zack at php recommended so it's right..
Pics:
Thanks for the insight ahead of time!
