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Hisun/Coleman 550

Bret4207

By Bret4207
in Hisun UTV SxS Forum

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Bret4207

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Someone mention unhooking the O2 sensor on  my  Hisun/Coleman 550 to see if it affected the no start when warm (even slightly warm) condition. Sure enough, once it cleared the crap out of the cylinder it started repeatedly with no issue! So I figured I'd run some dog food out to the LGD's with the sheep. On the way back I, not doing more than 4-5 mph because the stupid retarder still kicks in regardless of the seatbelt being buckeled, I hear "KAZING!!!" and the engine noise changes and I start getting smoke. Turns out a piece of what I think is the decompression system on the top gear on the timing chain let go and punched a hole in the timing cover. I also discovered, as I suspected, the timing chain is loose as a goose with a good 1" of play inside the case.  The tensioner doesn't seem to be doing anything at all. I'm not sure where all the pieces ended up, so I'm going to do some exploratory surgery. What a hunk of crap. We're still paying for this thing, it's got only 176 hours on it. Screwed doesn't begin to describe our condition!

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