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Offline WizBang

Saving a Crankshaft on Uforce 800
« on: August 29, 2019, 09:25:22 AM »
So i bought a basket case, '14 U800 High mileage (10,000km) with a knock. Turns out
it ate a rod bearing and the crank pin was damaged.. I had read an old post about someone
using Toyota bearings and regrinding the crank. So i did my own digging.

New (CFMoto) main bearings ($50), Resized rods ($50) & Toyota Rod bearings ($22), and reground rod pin ($125)
all said and done under $250 .

Seemed like easy math to me, as opposed to a new crank assy.

This i what i am in the process of doing... any interest in the particulars of this???


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Online NMKawierider

Re: Saving a Crankshaft on Uforce 800
« Reply #1 on: August 29, 2019, 10:00:14 AM »
The only thing I might toss-in is that the only guy I know of that did that had an issue with oil pressure and turned-out the company that ground the crank made a mistake. I'm not sure what he did to rectify it..may have just put undersized inserts in it but it's something to watch. 
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline WizBang

Re: Saving a Crankshaft on Uforce 800
« Reply #2 on: August 29, 2019, 12:04:47 PM »
Thanks, i did recall seeing that... also, his issue with Oil pressure related to his cooler... all of
that stuff i check / clean anyhow.

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Online NMKawierider

Re: Saving a Crankshaft on Uforce 800
« Reply #3 on: August 29, 2019, 12:12:15 PM »
Thanks, i did recall seeing that... also, his issue with Oil pressure related to his cooler... all of
that stuff i check / clean anyhow.
Good. I was going to mention the cooler restriction but it's so rare I just didn't.
2015 Z Force 800 53/Trail EPS
Custom Air Intakes | Custom Exhaust Mod | SuperATV Harness | Custom Fenders | Custom Skid/Rock Sliders | 27" GBC Grim Reapers | Seizmik Mirrors |Конструктор Doors | Dr Pulley Sliders | 1.5" Wheel Spacers | BENZ Silencer (as needed) | SATV Flip Windshield W\ Rear Shield | Dual Light Bars | Diamond Plate Storage |7- 9.7" GPS Systems | Bandit Springs Rear & Gen-3 Shocks Front | Cage Chop Mod

My Videos On YouTube

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Offline nFLOW

Re: Saving a Crankshaft on Uforce 800
« Reply #4 on: August 30, 2019, 09:05:58 AM »
Wizbang, we can reman cranks here at nFLOW and can also source new crank kits.  Give us a call at 800-488-8248 and ask for Chris.  He will be able to get a quote put together for you.  www.nflowmotorsports.com

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Offline WizBang

Re: Saving a Crankshaft on Uforce 800
« Reply #5 on: September 04, 2019, 12:52:35 PM »
@nFLOW
Thanks, good to know even for anyone else in the situation.. I have a local source
that did the work.. so I'm good to go! Everything is done and back i hand, just need to
find time to get back on it!

If ultimately there's little interest it likely die on the vine in this post, but if I do a
summary once complete... glad to give to you a shout out.