While mowing with my WD45 today the PTO shaft stopped turning. I use it to mow a 6-acre pasture. I checked for the problem and found the pin that goes through the PTO extension and the output shaft was gone. I replaced it with a bolt but while I was under there I noticed a very bad fluid leak where the output shaft goes into the PTO gear housing. While it was warm it was leaking about one drop per second, maybe more. When I wiped it clean with a rag I could see the fluid running out from where the shaft goes into the housing. I am assuming it's a shaft seal and can be replaced, so I thought I would ask if there are any look-outs for taking the PTO gear housing off to replace the seal. I bought the tractor from a local Agco dealer so hopefully they'll be able to get the parts. If anyone has advice about the best way to replace the seal (such as - does the PTO gear housing have to come off, etc.), and any potential pitfalls I should be careful to avoid, it would be appreciated. Also, I'm trying to figure out if this tractor has had a 3 point hitch kit added to it. Unfortunately I don't know the names of all the parts of the hitch system... it has the two arms that attach directly to the hydraulic rams, which are joined by the shaft that runs horizontally through the step/shelf under the seat, and below that, attached with vertical bars, are two arms with the ball and socket ends with the hole through the ball for attaching a drawbar or an implement. The ball and socket arms are bolted to the tractor through the holes used for adjusting the original drawbar (some kind of quick-connect funnel shaped thing for the drawbar to slide into). Is it likely that these have been added to the tractor or were they original? None of these parts are painted orange, and I'm sure this tractor has been painted at least once because many of the grease zirts were painted over. Lastly, I have noticed a fairly wide film of oil running down the side of the engine behind the manifolds. I traced it and it seems to be coming from the breather. I'm wondering if this oil film is a sure sign that combustion gases are getting past the rings into the crankcase. The exhaust seems to be clear and it doesn't seem to be using oil. I don't have the equipment or skills to rebuild the engine, so I thought before I panic I would ask the group if there are other possible causes for the oil coming out the breather cap. Any information would be greatly appreciated.
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