I can't take ownership for this fix and I can't find where I got this article from to be able to give credit to the originator. But I tried the fix he suggested and it worked for me. Why I'm not sure, but heck I was willing to try something to take care of the problem. I have a HRR216K9VKA Honda mower. I got my thrust washers from ACE and even though they were not an exact match, they worked. So far I cut my yard only once with this fix and ran this mower for an hour and one half, with good results.
14 year old HRT216 would no longer backup (rear wheels would not release when the drive handle was released, and the wheels just "locked". My remedy below is uniquely different from any others I have seen on this subject. Honda Mower Rear wheel xmission has a unique design that uses Thrust Washers to help release the drive from the rear wheels so that the operator can easily back up the mower when the Drive Handle is released.
As the machine ages, these washers lose their load Thrust and the rear wheels will not properly release to enable an easy back up. This makes the mower very hard to operate due to its "braking weight in reverse". A Simple Fix in lieu of replacing the entire transmission ($175 or so) and repair bill of $175 (total xmission repair is very difficult and time consuming) is to place two thrust washers (Pt # 90505-VG3-000) (13 x 27mm) in series and add one more spacing wheel washer (Pt # 90455-VA2-000 (13 x 27 x 1mm) to each Rear Wheel Assembly instead of just one thrust washer and spacer washer.
These are items #16 and #19 in Jacks-Parts-Lookup/Model-Diagram. Adding these washers "in series" will double the Thrust Force and aid the wheels to release. I used the existing Thrust Washer and Spacing Washer from the existing mower and added one Thrust Washer and One more Spacing Washer to each Wheel Assembly and got excellent results. Put the Spacing Plain Washers on each end of the Series Assembly of two Thrust Washers (i.e. Top and Bottom Sandwich with Thrust Washers "back to back" as shown in the Solon diagram referenced below: **. Be sure to orient the Washer Assembly as shown in Solon Belleville Spring Features via **.
One of the Thrust Washers Convex Head must be oriented to point towards the Wheel Axles Bolt Head, the other Trust washer Convex Head must point towards the Wheel Cover Item #6. Two Thrust Washers and two Wheel Washers will cost about $6.00. Time to un-assemble and re-assemble each wheel is about ten minutes each. Clean the large driver perimeter gear(s) on each inner wheel if badly caked with lubricant, grass, and dirt. Apply a thin coating of Gear Grease or Heavy Motor Oil to each driving gear
14 year old HRT216 would no longer backup (rear wheels would not release when the drive handle was released, and the wheels just "locked". My remedy below is uniquely different from any others I have seen on this subject. Honda Mower Rear wheel xmission has a unique design that uses Thrust Washers to help release the drive from the rear wheels so that the operator can easily back up the mower when the Drive Handle is released.
As the machine ages, these washers lose their load Thrust and the rear wheels will not properly release to enable an easy back up. This makes the mower very hard to operate due to its "braking weight in reverse". A Simple Fix in lieu of replacing the entire transmission ($175 or so) and repair bill of $175 (total xmission repair is very difficult and time consuming) is to place two thrust washers (Pt # 90505-VG3-000) (13 x 27mm) in series and add one more spacing wheel washer (Pt # 90455-VA2-000 (13 x 27 x 1mm) to each Rear Wheel Assembly instead of just one thrust washer and spacer washer.
These are items #16 and #19 in Jacks-Parts-Lookup/Model-Diagram. Adding these washers "in series" will double the Thrust Force and aid the wheels to release. I used the existing Thrust Washer and Spacing Washer from the existing mower and added one Thrust Washer and One more Spacing Washer to each Wheel Assembly and got excellent results. Put the Spacing Plain Washers on each end of the Series Assembly of two Thrust Washers (i.e. Top and Bottom Sandwich with Thrust Washers "back to back" as shown in the Solon diagram referenced below: **. Be sure to orient the Washer Assembly as shown in Solon Belleville Spring Features via **.
One of the Thrust Washers Convex Head must be oriented to point towards the Wheel Axles Bolt Head, the other Trust washer Convex Head must point towards the Wheel Cover Item #6. Two Thrust Washers and two Wheel Washers will cost about $6.00. Time to un-assemble and re-assemble each wheel is about ten minutes each. Clean the large driver perimeter gear(s) on each inner wheel if badly caked with lubricant, grass, and dirt. Apply a thin coating of Gear Grease or Heavy Motor Oil to each driving gear