Hi Stew,
This mower hasn't done a lot of work as can be clearly seen by looking at the cutter sprocket. It's very very good considering the usual ones I get to see.(cutter sporocket that is)
You didn't supply us with a thrust pad photo, just the shaft which has a few strange vice grip type marks on it.
As far as the bearing carrier halves are concerned, this is one of the only places where I use a hammer.
Place a screwdriver that fits the slot in the head very snuggly without any slop and while pushing down very firmly and applying anticlockwise twist, tap the back of the screwdriver rather firmly also ensuring that the screwdiver doesn't slip out of the slot which would flare out the edges of the slot, something we don't want to happen. Keep tapping until it comes undone which it will. Apply some "Penetrene" or "CRC C56" prior to starting the process of undoing these set screws.
As far as the clutch assembly is concerned before you remove it from the PTO shaft can you tell me whether it rotates without any wobble at the outer circumfrance as you pull on the rope starter gently so that the engine doesn't start. If it rotates straight then your clutch half will be reuseable if not then a replacement will have to be sought.
Your clutch half is the original unit which is made from cast iron. These are usually the best units made and if the cotter has beeen kept tight there shouldn't be any wear in that area. To remove the only way is to use a larger 3 jaw puller. These are available from Asian type tool shops and won't be that expensive and you'll use it later on in many different applications.
Also again apply some "Penetrene" or "CRC C56" before attempting to remove it. This is always good practice in mechanical engineering.
If you have any quieries don't hesitate to ask, no matter how large or small the issue is.
Cheers,
BB.
