2005 Max II Engine Replacement/Maybe Bearings?

[dragon864]

I bought this from a guy who couldn't get the engine started. So he decided to pour gasoline through the top cover hole into the carb. Well it caught on fire and they through dirt on it to get the fire out. The carb, plug wires, wiring, etc is crispy. It runs ok but won't idle. After reading the forum I made the decision to replace the motor with a Bandolero while I have it apart. You can see in one of the pictures the right chain hit the frame. is this a problem? Otherwise it looks pretty unmolested and the wear parts don't look like it has many hours. The chain adjusters are still in the factory settings. The chains are "O" ring chains and look like still in good condition just need to be cleaned.
I rotated all six tires once I got the chains off. The left rear bearing makes a faint grinding noise. Should I replace all bearings while I have it apart? Any comments from the pictures? Thanks!

[amphibious drew]

I would go ahead and replace all the bearings.

[Mike]

Definitely replace the bearings like Drew mentioned. Even if they weren't making a noise, it's worth the money to do it now while you have everything apart and not have to tear it apart again down the road. For the chain that hit the frame, that is common. If the chain jumps up on the sprocket teeth from being too loose or from the axle sliding in/out, it just doesn't have enough space between the frame and the sprocket to coexist and the chain beats the frame every time. Yours isn't bad so I wouldn't worry about it. My Max IV is the same way.

[dragon864]

Mike thanks for the info. By the way, I got the throttle cable from 600 Racing I mentioned in another thread. Instead of a "barrel" on the end it has a "ball". Can I unsolder it and change it to the barrel that our throttle uses?

I would have never bought one of these without the forum. Out here in Cali no one knows anything about these 6x6! Thanks to everyone's help and the "search" button I think I will be successful!!!!

[dragon864]

Also.... Drew/Mike.......I watched the video on changing bearings. Is there a lot different changing the bearings on splined axels. Also the sprockets have set screws. Should I measure where these are on the shaft so I can duplicate alignment? Mudd Ox has all the bearings/flanges? Any other advice/info?

[Mike]

I would assume you could solder a barrel on the end but I'm not certain. For changing the bearings, the process is the same for the outer bearings as the video shows. On the inner bearings, there most likely will not be locking collars but rather two set screws on each bearing and a bolt/washer on the inside of the bearing that goes into the end of the axle. The bolt/washer holds the axle in (along with the outer bearing locking collar) and then the set screws on the inner bearing hold the bearing to the axle so that it spins with the axle. You can watch rock doctor's Argo bearing replacement video or check out the Argo manual for changing bearings. They are held in the same way.

For your sprockets, the splined axles have holes drilled into one of the splines for the set screws. Just reuse the same hole again and that will align your sprockets back to where they need to be.