If you turn the PTO pulley (Engine off, spark plug wire disconnected) does that cause the deck to turn? Check that the belt has not come off the pulley on the deck. I would mark that belt and pull it all the way around. Odds are you will find a chunk of it missing. When you get a replacement belt either get the genuine Toro part or make sure it is a dry sleeve aramide reinforced type belt intended for power equipment. I fractional horse power belt from the hardware store won't last if it even works at all. Good luck

Congrats on your purchase!!! The 854 was made only in 1964. It has an 8hp Kohler electric start engine and a 4 speed manual tranny. Below are the attachments that will fit an 854. -Deerslayer Attachments/Accessories List Model/Part Number Description Comments 5-2321 32" Rotary Mower 5-2361 36" Rotary Mower 6-4111 42" Dozer Blade 7-1721 Cultivator AC-675 Cultivator AC-7 Cultivator (7-1711) AH-63 Auxiliary Hitch (85111) BD-4262 42" Dozer Blade BD-4263 42" Dozer Blade BD-4264 42" Dozer Blade BD-4264A 42" Dozer Blade BD-4267 42" Dozer Blade BD-4271 42" Dozer Blade BR-122 Back Rest DP-861 32" Disc (7-1511) DW-62 Dual Wheel Kit (80711) HL-5 Headlights HL-6 Headlights HY-3 Hydraulic Unit LMR-304 30" Reel Mower MA-1 Speed Hitch (85211) MB-405 40" Grader Blade (7-1111) PP-101 10" Plow PP-411 8" Plow (7-1421) PP-85 8" Plow PTO-66 Power Take-Off RM-323 32" Rotary Mower RM-324 32" Rotary Mower RM-326 32" Rotary Mower RM-3262 32" Rotary Mower RM-327 32" Rotary Mower RM-363 36" Rotary Mower RM-364 36" Rotary Mower RM-366 36" Rotary Mower RM-3662 36" Rotary Mower RM-367 36" Rotary Mower RM-425 42" Rotary Mower SGM-603 3 Gang Reel Mower SMS-42A 42" Sickle Mower SMS-425 42" Sickle Mower (7-1321) SR-64 Speed Reducer ST-324 32" Snow Thrower ST-325 32" Snow Thrower ST-326 32" Snow Thrower (6-2211) TC-12 Tire Chains, All Purpose or Cleat 6.00 x 12 (82411) WD-7 Wheel Disc (80511) WF-60 Front Wheel Weight (81211) WT-244 24" Tiller WW-12 Rear Wheel Weight WW-126 Rear Wheel Weight (81111)

You must write down the model numbers, engine type, tranny type, size of deck, number of belts. etc. then go poke around in the various tractor columns here, and see what you can find. There are Yahoo Clubs on the computer, and some careful digging in them will get results. look for Yahoo Clubs/Wheel horse tractors.. Hardware store or auto parts store belts will be unsatisfactory, unless they deal in the make. To install the belts--make a careful drawing of how the old ones are presently installed, and go from there. From past experiences, i know you will never remember how the belts go back on! Just about the time you finally think you have the belt pattern all figured out, in yer head, yer wife will call you to come do something for her, and by the time you get back to it---guess what---you will have forgot! Also-check in Yahoo Groups, for the wheel-horse tractor club, and post a question there.

***"What generally causes this type of failure?"*** The kind of "cascading" damages in a catastrophic failure like this engine suffered are typically due to a "set of circumstances" than from a "single cause" (I am referring to "dropping the exhaust valve") The valve seats are steel rings, pressed into a machined recess in the aluminum cylinder head. Under "normal operating conditions", the temperature of the engine remains below a critical threshold, and the valve seats stay in place. BUT, whenever "abnormal operating conditions" prevail, the temperature of the engine (especially the exhaust valve sector of the head) may go higher than the design temperature limit. If/when this happens, the exhaust valve seat loosens and jumps out of its recess. Once the seat is out of place, it prevents the exhaust valve from closing, and so the piston comes up and strikes the valve and seat. The impact may stop engine rotation instantly, or the engine may continue to rotate from flywheel inertia a few seconds as it spirals to a stop (the moment the exhaust valve seat came loose, combustion ceased). A "common cause" of overheating is when mice build nests, or caches of food, inside the sheet metal shrouds that duct cooling air from the flywheel fan over the engine cooling surfaces. An engine running with too little fuel in the mixture (lean burn) can also run hotter than normal, and that will eventually result in loosening of the exhaust valve seat, though that type of loosening may not always result in a sudden, catastrophic failure (but it can). Another way that exhaust valve seats can loosen (in an otherwise "normal" engine) is if valve adjustment is not maintained to the correct specifications. If the valves have too little clearance, the exhaust valve will "leak" a portion of the combustion gases past the valve seat during the part of the combustion process where it is supposed to be completely seated. Cooling of the valve seat and valve are primarily accomplished by having the valve and valve seat in contact with each other for the majority of the time that combustion takes place in the cylinder. This "closed time" allows heat to be conducted away from the valve and seat, into the cylinder head and valve stem, where the heat can then be carried away by both lube oil (inside the valve cover) , and cooling air from the fan. If the "closed time" is reduced because of insufficient valve clearance, the temperature of the valve and seat will increase higher than the design limit of the head, and the valve seat may loosen, or the valve and seat may be "flame cut" by the escaping gases. A good "forensic analysis" of the failed engine is needed to determine the reason for the overheating.