Do you want to cure the belt chatter and hot belts on your Proclimb 800?

JROD · Dec 23, 2011

I'm going to go out on a limb here and say that under full shift the flex of the plate and of the jackshaft is going to pull the angle of the clutches together and force the belt to twist somewhat and therefore slipping.

Or...

Depending on how much the torque link and mount flexes while the engine twists, the jackshaft bearing movement will slightly change where the secondary is in reference to the primary, especially if the jackshaft flexes when under load.

I'm curious but you've got me going over this. At a glance I'm going to say that mount won't last long.

TheJett29 · Dec 23, 2011

Needs another solid mount point in the opposite corner

mikew5945 · Dec 23, 2011

From the first picture, it shows that the green thing can vibrate on its rubber mount. There are three areas of force competing on one link (green thing).

Second picture shows the engine supported by greenie. Jack shaft solely supported and an insufficient rubber. Ever have one?

To me, the goal is to mount greenie so it absorbs the torque of the engine and its vibrations and not transfer through the insufficient rubber to the jack shaft. Thus stopping the vibrations.
How did I do?

Schmeg · Dec 23, 2011

I believe what is happening is the weight of the engine is compressing the rubber mount on the aft portion of the torque link when the engine is at rest. Clutch alignment is established in this configuration, then when the engine is running, the flywheel effect will unload the rubber mount causing a misalignment because the rubber in the mount is soft enough to allow it. Under hard use, it just exacerbates the problem by allowing continual misalignment problems when the engine torques up. Flatland riders will not see the problem as quickly because they don't have the motors loaded up nearly as much keeping belt temps lower, but eventually would see the issues. A stiffer mount would help the problem, but not totally cure it. Thats my stab at it Kelsey.

diggerdown · Dec 23, 2011

Looks like a great set up for a 500 fan engine! You get some HP and pull, that whole thing has to be flopping up and down, definatly need a motor mount on the pto side. There would be a lot of force trying to lift the engine up. I guess I still don't totally understand why the clutch would chatter but there may be enough twist to get some chain bind and vibs to the frame.

RKT · Dec 23, 2011

OK, we are getting somewhere... Nice work!

See if this helps... USE YOUR IMAGINATION!! Think of this oil pump as your engine, torquelink, jackshaft, and single mount point

akMcat · Dec 23, 2011

Could you please just tell us what your fix is RKT. Belts are getting pretty expensive and Ive resorted to just riding my 06 M mod sled.

sledhead13c · Dec 23, 2011

Pure guess, but with the motor mount at the rear is the motor raising up under load causing the jack shaft to move towards the rear of the sled? This in my mind could cause the secondary to tilt slightly putting some side load on belt?

RKT · Dec 23, 2011

sledhead13c said:
Pure guess, but with the motor mount at the rear is the motor raising up under load causing the jack shaft to move towards the rear of the sled? This in my mind could cause the secondary to tilt slightly putting some side load on belt?

NICE!!!.. also, what is happening at the primary??.. Remember this side of the engine is SOLELY supported by the torque link

Schmeg · Dec 23, 2011

With the jackshaft bearing mounted in rubber, and the bottom of the torque link just under the jackshaft mounted in rubber, and the whole forward portion of the link supporting the weight of the motor and the movement of the motor, you will get momentary differences in phase between the mount in the link and the rubber mounted bearing causing many small alignment issues. Long story short, the jackshaft bearing mount and the lower mount are moving out of phase causing momentary differences in offset and center to center measurement.

Highmarker · Dec 23, 2011

I have been drinking WAY too much to try and figure this out right now! Haha

sledhead13c · Dec 23, 2011

RKT said:
NICE!!!.. also, what is happening at the primary??.. Remember this side of the engine is SOLELY supported by the torque link

Ok with the tcl bolted to the motor the plate should stay parallel with the primary? So,, do we have some additional load transfer to the tcl causing it to flex as in a twisting motion?

RKT · Dec 23, 2011

sledhead13c said:
Ok with the tcl bolted to the motor the plate should stay parallel with the primary? So,, do we have some additional load transfer to the tcl causing it to flex as in a twisting motion?

OK, Schmeg, nice work also..

Not so much twisting (although that coul dbe a factor as well) but think of where the pivot point is located... Get it PIVOT??

OK, now we know the problem.. Very easy to fix.. I have implemented/tested 1 solution but have 3 ways that would work well..

Let's here your solutions.

Schmeg · Dec 23, 2011

Motor torque is causing an inferior rubber mount on the plate to flex more than the jackshaft bearing mount does.

sledhead13c · Dec 23, 2011

Im starting to think an additional motor mount may be needed towards the front of the tcl?

RCR3 · Dec 23, 2011

My guess is the ENGINE IS WALKING/WOBBLING UNDER ACCELERATION!

akMcat · Dec 23, 2011

How a bout a solid rubber mount for the TCL

Dam Dave · Dec 23, 2011

harder rubber mount......from 1100T?

RKT · Dec 23, 2011

akMcat said:
How a bout a solid rubber mount for the TCL

Think Pivot point....

Mn Mtn Man · Dec 23, 2011

??

With the PTO side of the engine only supported by the plate, when the far side of the engine moves on the rubber engine mounts, it moves/misaligns the primary clutch which is on the other side of the PIVOT/plate attachment point .

I presume they still use rubber engine mounts.

Do you want to cure the belt chatter and hot belts on your Proclimb 800?

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