Moments before implosion.

yamanube

yamanube

This Is The Way
Staff member
Location
Mandalor
My self ported 760 mutt has been ripping in my Rickter for 4 years now. It started to develop some strange noises a few months ago but was still pulling hard and pushing solid compression. I decided to do a full tear down along with a returf.
One of the wrist pin bearings fell apart when I pushed out the pin and the middle lower crank bearings had been puking their guts out which somehow was retained inside the bearings.
Overall, I think I caught it moments before it totally came apart. Not bad for a bare bones budget build with all the cheapest parts running 190psi on zeel with 89 octane fuel.
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Big Kahuna

Big Kahuna

Administrator
Location
Tuscaloosa, AL
Years ago I took my Freak to the beach on vacation. Only rode once, on the way back around from the ocean back to bayside, The ski felt funny. Could not put my hand on what it was...... Get it home, pull the pugs and everything looked good. Reached under and grabbed the coupler, everything felt right. Rolled the coupler around......... "Tick Tick Tick"............. I could rear bearing "rolling up, over then falling"................ Pulled motor down. One of the end bearings had literally come apart, the cages holding the bearings had come apart. No damage to the bore........ Sounds like the same thing. 5 more minutes and Boom!!!!!!!!!!!!!!!!
 
WFO Speedracer

WFO Speedracer

A lifetime ban is like a lifetime warranty !
Location
Alabama
Big Kahuna said:
Years ago I took my Freak to the beach on vacation. Only rode once, on the way back around from the ocean back to bayside, The ski felt funny. Could not put my hand on what it was...... Get it home, pull the pugs and everything looked good. Reached under and grabbed the coupler, everything felt right. Rolled the coupler around......... "Tick Tick Tick"............. I could rear bearing "rolling up, over then falling"................ Pulled motor down. One of the end bearings had literally come apart, the cages holding the bearings had come apart. No damage to the bore........ Sounds like the same thing. 5 more minutes and Boom!!!!!!!!!!!!!!!!
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I got a 750 Polaris in like that one time, the guy asked how I knew the engine was toast , I told him I could the bearings slapping each other when you cut it off.

The guy didn't believe me , said there was no way I could know that by listening to his engine .

It gets better, he then accused me of swapping out his engine with a bad engine , he said he was calling the Sheriff, I very politely told him to back his truck up to the gate and get his ski off my property.

He kept saying he was calling the sheriff , about the third time he said it I told him to just hold on a second and I would call them for him , funny part was when they showed up and he was cool as a cucumber then, he knew I had called his bluff, he hooked that POS up and left.

Soon after that I stopped working on Polaris stuff altogether , those customers were the worst.
 
yamanube

yamanube

This Is The Way
Staff member
Location
Mandalor
Big Kahuna said:
Years ago I took my Freak to the beach on vacation. Only rode once, on the way back around from the ocean back to bayside, The ski felt funny. Could not put my hand on what it was...... Get it home, pull the pugs and everything looked good. Reached under and grabbed the coupler, everything felt right. Rolled the coupler around......... "Tick Tick Tick"............. I could rear bearing "rolling up, over then falling"................ Pulled motor down. One of the end bearings had literally come apart, the cages holding the bearings had come apart. No damage to the bore........ Sounds like the same thing. 5 more minutes and Boom!!!!!!!!!!!!!!!!
Click to expand...
Yeah, this one was audible while riding for sure...it probably got 4 or 5 sessions after I really started hearing something. It honestly could have been sold as a good running engine, good comp, ran well, no signs of damage. I did notice a bit of what looked like detonation as well. It did a couple rough tow ins towards the end of its life dragging swamped skis in and I think it really did not like that.
 
JetManiac

JetManiac

Stoked
Site Supporter
Vendor Account
Location
orlando
Reliability could have been soon liability huh? Looks like it was put up wet a few times possibly, looking at the wrist pin.

Crank was definately close to grenading as was that wrist pin and bearing.
 
Quinc

Quinc

Buy a Superjet
Location
California
You going to rebuild her now or wait to see what kind of deals the King of parts JM brings us this year for the holidays? =)
 
kevbo

kevbo

Location
dfw
yamanube said:
Yeah, this one was audible while riding for sure...it probably got 4 or 5 sessions after I really started hearing something. It honestly could have been sold as a good running engine, good comp, ran well, no signs of damage. I did notice a bit of what looked like detonation as well. It did a couple rough tow ins towards the end of its life dragging swamped skis in and I think it really did not like that.
Click to expand...
This is why I NEVER buy a used PWC engine unless I can inspect all its parts.
 
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