Help with driven disk

[Thanos000]

I have a 1971 Snapper Comet 30 307X that came with my house. I have been slow replacing parts as they brake. About tow months ago I had to replace the driven disk after it flew off, Now the brake pad came off the brake lever. When I went to replace it I noticed the driven disk is all chewed up. Can any one tell me how to fix this so my new one will last longer than 15 hours. This is what I know.
1. The disk that is on the engine shaft is smooth with no nicks or scrapes.

2. When you shift gears the driven disk doesn’t go past the edges of disk on the engine shaft.

3. With the old driven disk you could shift gears without using the clutch (like the manual state you should) but when I put on the new one on you couldn’t with out really forcing it. I am sure my roommate did force it. He’s not the brightest.

4. The manual states: Excessive pedal pressure detrimental to easy shifting

[mark777]

Hello Thanos000 and WELCOME to MTF!

I am trying to visualize what happened to the disk. I assume you mean the brake chewed the inside of the drive disk and then came loose?

There are guys here that are way smarter than me with Snapper...even though I have two of 'em. I'm thinking the brake cable was routed incorrectly and put undue strain on your disk. That is my best guess until we have one of our experts chime in. The shifting part may be internal binding...usually cleaning the shaft and greasing liberally works wonders.

Mark

[Durwood]

Nevermind, i see now you said the disc on the driveshaft is smooth.

Dur

[Thanos000]

Sorry, I should have said it is the outer black rubber that is chewed up. It has chunks of material missing. But not just in one spot it is chewed up pretty evenly all the way around. Also this snapper has been pretty well abused by the previous owner but hay it was free.

[Maybar]

Hopefully this hasn't happened to yours. :banghead3 BUT it sounds very familiar with the rubber being chewed in short order.

When the internals come apart it lets parts move in directions and places we would rather not have them even though they often look correct while not in operation.

Don't bother adjusting the drive disk on the shaft of the engine to correct the problem. If the disk was set correct from the factory it should never need to be moved if the new rubber driven disk is original equipment diameter. :goodl:

[Rusty Jones]

I bought my Snapper rider in 1984, and it is used every week for all kinds of things, and it still has the original rubber disc on it!
Did you install the disc backwards? Is the paper thing still in there? Maybe the new disc was old stock, maybe deteriorated from long time storage! Did the clamp that keeps the correct adjustment of the main chassis tube come loose, which would change the belt adjustment, and some of the clutch pedal adjustment.
As for shifting without using the clutch, that is only to be done when the machine is moving in gear, and not when going from forward to reverse! Its not to be done when shifting into low, either. This practice could chew up the rubber.
To check the correct length of the main tube, remove the plastic belt area cover. Then reach down and move the handle forward that tightens the belt. The belt, where the two sides are the closest, should be 3 fingers apart, at the closest place. HTH: Rustyj