motor went bye bye

[endofitall9]

Hauling ballss down the fire road and the right side cylinder leaned out and burnt a hole in the piston.......tore it apart trying to fine the causes and the only thing I found was the oring on the bottom of the coolhead dome blew.....exhaust smoke on cylinder and half the oring is gone anybody have this prob with the coolhead? also its a bummer the 5th ride on my motor now i have to put a new piston on the right side...would you guys re-ring the other side?, even considering its a new motor?...........I got lucky though no damage to the cylinder just got shit all down in the case on the crank. flush it out, new piston and orings and up and running again

 

thanks Josh

[dirtyernie52]

if you got piston in the bottom end i would split the cases, you will never get it all by flushing. other side i would leave alone if all looks good.

[sheefreak]

Definately split the cases!!!

[akita8]

I had this problem with a set of cylinders. I had to install the stock head- I don't think they were decked right. When you install the coolhead, torque the head bolts before the cylinder nuts.

 

My banshee blew the oring out and then the compression from the engine would pressurize the coolant and blow the cap off the overflow bottle. When I stopped riding the coolant would rush into the cylinder and that was the end of the story.

[DUB]

Hauling ballss down the fire road and the right side cylinder leaned out and burnt a hole in the piston.......tore it apart trying to fine the causes and the only thing I found was the oring on the bottom of the coolhead dome blew.....exhaust smoke on cylinder and half the oring is gone anybody have this prob with the coolhead? also its a bummer the 5th ride on my motor now i have to put a new piston on the right side...would you guys re-ring the other side?, even considering its a new motor?...........I got lucky though no damage to the cylinder just got shit all down in the case on the crank. flush it out, new piston and orings and up and running again

 

thanks Josh

ME ME ME! I lost an o-ring on the right side twice with my cool head and a couple of other people I know also fell victim. When mine blew it pressurized my cooling systen also and blew my coolent out the overflo. I took my coolhead to work and let the guy that runs the laser tracker shoot it in and my assumption was right it was not machined flat.

[endofitall9]

I think i can get it all out without splitting the cases, Ill part it out before i split it open, most of the shit went out the exhaust anyway my pipe was full, just a little bit around te deck on the cases that i already got out....

also I dont runn a coolant bottle but the over flow looked like ole faithful.......

[alcoholbanshee]

For what it's worth......you should reconsider your decision!!!Split the cases. It takes a half hour to pull the motor and another hour or so to split the cases and reassemble. If you don't do this, you most likely will have more problems. Chances are good you will not get everything doing it your way.

[suzuki0702]

i agree bro... sooner or later your going to have to split the cases...so youd part that bottom end out before u replaced a siezed crank? its easy and you'll learn..then you can charge your buddys to do theres when their shit goes bad!

[endofitall9]

Yeah, I reconsidered, kinda pissed off about the thing, its all brandnew! so, it would be smart to do it right. Unfortunately I'm the only one around here that really rides a banshee, all the rest are built for drag at the local strip, never see them in trails so I right now have the right to be called king of the hill(on a banshee) thanks for the info though guys should be back up in about 2 weeks.

 

Josh

[CadillacBanshee]

split the case and do the seals. You'll thank us later.