How do I replace the oil seal on the eccentric shaft of a Troy Bilt Pony roto-tiller? The manual has a parts and assembly diagram but it replacement of this seal seems to require a complete tear apart of the entire gear assembly, more than I would expect for a seal that failed after only 3 years.

without a proper model number it is guess work, but either the drive belt has snapped, or if the right wheel drive the left wheel, there may be a half moon key way or a shear pin. General help here, followed by parts suppliers

https://www.google.com/search?q=Troy+bilt+horse+tiller+right+wheel+turns%252C+but+left+wheel+doesn't+turn

Garden Tiller Parts - Troy-Bilt

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Find the tiller parts, including blades, belts, tines, seals and replacement part kits, that fit your Troy-Bilt outdoor power equipment. When you need garden ...

Troy Bilt Horse Parts Lookup by Model - Jacks Small Engines

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Troy Bilt Horse Exploded View parts lookup by model. Complete exploded views of all the major manufacturers. It is EASY and FREE.
‎Horse i 7hp roto tiller (s/n 1001... · ‎8HP Electric PTO Horse Tiller · ‎2308 Horse III

Garden Tiller and Cultivator Parts ' Troy-Bilt US

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Find the tiller parts, including blades, belts, tines, seals and replacement part kits, that fit your Troy-Bilt outdoor power equipment.
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Troy Bilt Horse Tiller Parts

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Troy-Bilt Horse Tiller Part Search. Search the part you're looking for by part number or model below. Troy-Bilt Part Number:.

http://www.mtdparts.com/webapp/wcs/stores/servlet/OperatorManualView?storeId=10101&catalogId=19502&langId=-1

Go to this website and type in PONY for your model number and find your operator manual by your serial number. The operator manual should have detailed instructions on how to replace your seals.
On the Horse model you remove the wheels and then carefully use a couple of screw drivers to pry out the old seals being careful not to scratch the wheel shaft sealing area. Then polish the wheel shaft with fine emery cloth to remove any sharp edges. Then grease the wheel shafts and carefully slide the new wheel seals on and use a piece of plastic PVC pipe cut square that will slide over the shaft and gently drive the seal to the depth the old seals were installed at. You dont even have to drain the gear oil. Getting the wheels off the wheel shaft is sometimes a problem if they are rusted on. if you can get the wheels off its not to hard to change the seals.

Frank

That's the engine number. It's a 6Hp Tecumseh. Go on ebay and buy the Troy Bilt parts manuals on CD for Horse Roto Tillers (if that's what it's on). I paid $8. Definitely worth it.

Have you tried soaking the shaft area with either PB Blaster or Deep Creep penetrating oil. Try this for a few days before trying to tackle getting the tine attachment off.

From what I read you need a new rewind clutch and the spring and cord go into the housing. Briggs is easy to fix. contact me at [email protected] and I can send you what you need or you can send it to me and I will repair it very cheap!! Parts are available at almost any small engine parts place.

remove plastic belt cover
remove the guard,belt/pulley
work in the right side first:
remove the rigth-side wheel
remove the screws of the bumper
remove 2 screws on bracket/transmission assembly
pull the bracket
install the new belt
reinstall the right side screws and wheel

do the same in the left side
Ps: remove the belt guide, and reverse return spring
http://www.partstree.com/parts/?lc=troy_bilt&mn=21A-634K766+7HP+FRT+Roto-Tiller+(2005)&dn=0079200009

on my pony the disc came off when i removed all of my tine shafts. then i pulled the old seals out an drove the new ones in

sounds like the shaft is either bent,or the inside diameter is worn and the shaft tube needs to be replaced.

remove plastic belt cover
remove the guard,belt/pulley
work in the right side first:
remove the rigth-side wheel
remove the screws of the bumper
remove 2 screws on bracket/transmission assembly
pull the bracket
install the new belt
reinstall the right side screws and wheel

do the same in the left side
Ps: remove the belt guide, and reverse return spring

http://www.partstree.com/parts/?lc=troy_bilt&mn=21A-634K766+7HP+FRT+Roto-Tiller+(2005)&dn=0079200009

If the seal fits over the axle shaft it should be ok. be sure your axles are very clean as not to ruin the new seals when applying them. probably a good idea to replace them as a pair (right and left side) to save you time down the road.