4000 clutch

By all means replace the starter ring gear. It's probably 44 years old, and you'll be cussing yourself later if you don't do it now.

Rod

The clutch friction discs are 9" diameter. That's not a lot of surface area, so you don't want to skimp on a cheapo import. Get a good one, the effort / cost is in the labor to do the split. A 25 year clutch cycle is better than a 3 year one for a 50% cost savings!

You can do it in a long weekend by your self. Long is Starting Friday after supper and buttoning it up late Sunday. A skilled tech can do it in 6-8 hours. The important things to remember are that you NEVER force the sucker together. If you get some 6-8" long bolts that will thread into the back of the block and cut the heads off of them, you can use them as guides to get the assemblies real close. You may have to jiggle and wiggle to get the splines lined up. May have to hand rotate the engine a bit. When it fits, it slides in like it was on rails. If it does not do that, DON'T force it, or you will be buying a new clutch.

Input shaft seals are a good thing to do while you are there and check the condition of the back freeze plug. If it is suspect, you may want to put in a brass marine one.

There have been some good threads with hints, tips and all on the split. Search and enjoy the read.

jb

What exactly does it rub against then?

Ofcourse the main clutch works against the flywheel, with an intermediate (PP) steel plate behind it, then the PTO clutch and then another intermediate (PP) followed by the springs.

Resurface the flywheel as necessary. There is generally a wear spec for that, but all I've ever done is a visual inspection. If it's got grooves, grind it. If you can't tell wear, clean it off with emery cloth and give it another go.
The clutch assemblies and pressure plates will come as a unit... or they should. That's the best way to replace a clutch. Do the whole shot and be done of it unless the PP is A-1 already.
I haven't priced one for that partcular tractor but I'd expect Hy-Cap to have something in the 5-600 range complete, and of good quality.

Rod

Rod

I know that the clutch in my 4000 does not wear against the flywheel. All of the wear surfaces are internal to the clutch assembly. I've mentioned this in the past, and I've received so many flames that I have to wonder if the replacement clutches are different from the original equipment.

Assuming just a new clutch and possible FW resurface.. I'd guess at least 5xx$ plus other small ticket items.. like trans input shaft seal.. etc.

The small fords are not a huge task to split.

Soundguy