Snapper Riding Mower Clutch Issues



I put a new clutch disc on the old snapper riding lawn mower and it really hasn’t made any difference. I have exploded views of the assembly but no instructions. Maybe I don’t understand it or maybe the parts are wrong. Hopefully someone out there in You tube land will have the solution to the situation!
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44 thoughts on “Snapper Riding Mower Clutch Issues

  1. I have had several old Snappers like this.  My older Snapper had a Rigid Clutch Disk and it did not use a Thrust Gasket.  My newer Snapper did use the Clutch Disk like what you have and it did use a Thrust gasket.  Because my yard is on a hill, the Thrust Gasket would not create enough friction to bind the clutch disk to the Transmission.  I had to add several Thrust Gaskets to create the friction required to move the mower.

  2. The light blue inner liner is a part of the braking system.  Just like a Car's Drum brake.  It has nothing to do with power movement.  The Plate on the bottom of the engine drives the Clutch Disk, the Clutch Disk drives the Thrust Gasket, the Trust Gasket drives the Flat Plate that you removed with the four bolts, the Flat plate drives the Hub through the four bolts. The Hub is the input to the transmission which turns the wheels.  Double-up your Thrust Gaskets.  Use the old one and the new one.

  3. When you "change gears", you are actually changing where the Clutch Disk is touching the motor plate.  The further in, the slower the plate is traveling the slower you will move.  As you select a higher gear on the speed lever, you are moving the clutch disk further out on the motor plate.  The clutch plate will rotate more times per engine rotation.  You will go faster.   Reverse is accomplished my moving the Clutch Disk all the way to the other side of the motor plate which is spinning in the opposite direction.   Truly the definition of a "Simple Machine".  Cheers!

  4. With the older style rigid Clutch assembly, you could pop the clutch pedal and do a "Wheelie".  This was very dangerous on hills.  I believe they then changed to the limited slip version that you have to force it to slip a little in high torque situations which absolutely destroyed my wheelie demonstrations !  ;(

  5. There is no need for the brake liner (light blue) to protrude beyond the inner portion of the Clutch Disk.  Because the one you bought does protrude, you may be smelling it rubbing during rotation on the object to it's immediate left (in your video).  After you understand all of this, you may elect to trim it. Don't worry about the "Looseness" attribute that you have identified.  The brake system wants to be loose and not in contact with the blue liner.  You will want to test your brake and make sure that when it is depressed, it expands enough to lock down against the blue liner.  Because your mower has one peddle, it is both your clutch and your brake.  First half of the movement disengages the clutch and it you depress it all the way, it is your Brake.

  6. I would suggest that you look a bit deeper.  The part you are removing is called the friction ring.  That is only part of the equation.  The drive assembly consists of the drive disc that is mounted on the motor.  The friction ring.  The thrust washer.  The clutch plate.  The drive disc can be cleaned with sand paper.  You indicate that you have replaced the friction wheel and the thrust washer.  You also need to check the clutch plate for wear.  Any wear here will cause the clutch to not fully engage.  That is the metal ring that bolts to the outside of the ring.  You should replace all three items for the best fit. 

  7. I have replaced the drive disk and liner still won't go anywhere… What other things can be ajusted on my snapper rear motor 28" to get it to move..need help

  8. That band you said you smelled burning has nothing to do at all with the brakes.  It is just there to keep the tinny noise down when operating.  It will work fine without it.  Your problem is the outer disc that holds the fiber washer is either bent or warped.  Try putting it together with your old disk and the new one and I bet it works.  Or go out and buy a new end cover that hold the new disk in.

  9. I can not edit what I said below.  I meant to say try a new outer cover that the 4 studs hold down.  If you can not do that, install "both" your old and new fiber disk.  The thickness will make it work for sure.  But the unit will not do what it was designed for which was to slip a bit to stop all the power from tearing up the rest of the tractor and pulling wheelies like the old style driven disc use to do.  Yours is what they call the "soft start" assembly.

      Again that green strip on the inside of your driven disk is just there for noise suppression.  Your brake pad is on the inside of the main hub that hooks to the red chain case.  Its on the little arm that hits the inner part of the main hub when you push the clutch/brake pedal all the way down.

  10. Multiple issues I see. First and most alarming is the dead axle boots. Your old clutch looks ok. What you need to adjust is the distance between the driven disk and the clutch rubber material. One set screw on the driven disk, lower driven disk down 1/4". Tighten set screw. Your old clutch will now make the machine pull wheelies.

  11. There are MANY different companies making the new clutch disks. Issue is their OD size. You need to adjust the driven disk to clutch disk black rubber distance.

  12. You can get rid of that "Smooth Clutch" setup, it can be replaced with the old original Snapper clutch setup. If you need additional info let me know. I have part numbers and parts, MOST of which are now obsolete.
    IF you or another has removed the plate off the engine at any time, you may need to check the measurement from the bottom of the case (under where engine bolts) relative to the surface of the plate where the rubber drive disc runs on. I forget the measurement, what it is supposed to be BUT if this gets off up or down it can cause clutch issues.
    BTW, check the gap in the yoke where the pin on the chain case moves from left to right as you shift gears, sometimes a groove is worn into this track which will cause excessive wear on the driven tire, check the hardened sleeve that slides over this pin on the chain case, if it has grooves from wear replace it.

  13. I think the soft start clutch works with only the friction at the contact point providing drive. IOW it's loose until enough pressure against the disc on the crankshaft is applied.

  14. Clutch will slip when needle bairings are going out because of the bad boot.
    That is what happened to mine, and i used my old clutch and worked great after i changed the needle bairings in the transfer case.

  15. im 14i know some reasons you might be having issues with your clutch if you have hauling trailer you are pulling too much in that trailer were there is a clutch wheel. is made of rubber and the other wheel is steel its wearing it down too easly or your clutch has been worn down over the years there's nothing for it to drive it

  16. try using an a course paper or sand paper and go around the in hub the clutch rests on, its like what u would do to a pressure on a manual trans. on a car when replacing clutch before installing give the clutch a rougher surface to grab on too

  17. All you need to do is lower the aluminum disk that the rubber tire hits against by loosening the 2 set screws on the disk itself. Once loose you may have to pry the disk down with something like a screw driver or something like that. Put it down my just close to the tire when I natural and tighten back up and that should get it.

  18. If you want to see how to repair your snapper go to Jim's fix-it shop on YouTube he has a whole series of repair videos for the snapper

  19. If it's still slipping with a new clutch, next you need to check the yoke if it has wear where the rod contacts it there's you problem

  20. It moves to different spots on the engine plate to give 5 forward speeds, 1 reverse, very clever and simple drive mechanism. I pressure washed my used 2002 10 horse 30" and greased and touch up painted mine and it mows grass like a heard of starved billy goats!

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