Mysterious Pilot Bearing Piece
 

I separated a 1972 SM465 from my 350 and the piece circled in the photo fell out (at least it was on the floor beneath the transmission when I removed the transmission). It fits perfectly into the throwout bearing.

I don't see this piece on any website and I don't know why the center is slotted (the input shaft is round).

Any clue what it is? I never did clutch replacement and I'm trying not to screw it up.

Thanks

Rich

Re: Mysterious Pilot Bearing Piece
 

Never seen anything like it. Some clown at the factory maybe.

Re: Mysterious Pilot Bearing Piece
 

I,ve done a lot of them & have never seen that part before.

George

Re: Mysterious Pilot Bearing Piece
 

Spacer?

Re: Mysterious Pilot Bearing Piece
 

Could that be from the Z bar?

Re: Mysterious Pilot Bearing Piece
 

Is it a piece from a 4 speed transmission where the shifter enters the case?

Re: Mysterious Pilot Bearing Piece
 

I couldn't tell you how many clutches I've replaced (many dozens as a guess), but I don't ever remember seeing one of those things.

Re: Mysterious Pilot Bearing Piece
 

Yeah. I think it's the top of the shifter ball that's under the twist-to-lock tin shifter cap. How it popped out is a mystery.
And if you already have one, it could be that a PO or his mechanic couldn't find it on reassembly, so they got another one to replace it. When you pulled the transmission, you ''found'' it. Where it lodged in the interim is another mystery.

Just a guess,but it is not part of the pilot bearing, trans spline, throw-out bearing, or Z-Bar assemblies.

Re: Mysterious Pilot Bearing Piece
 

I was excited that it might be for the shifter ball but it isn't. It fits in but the slot in the peace is not big enough to allow the shifter linkage to go down into the transmission.

I just find it strange that it perfectly matches the throwout bearing (see photo) but it doesn't go there. From your guys responses and manuals I feel pretty confident that it not part of the transmission. I did have the whole tranny inspected and cleaned after I took it out and the mechanic didn't mention anything.

If I find out anything new I'll let you guys know.

Thanks

Re: Mysterious Pilot Bearing Piece
 

Kinda looks like a lawnmower part to me.

A spacer for the spindles and blade?

Re: Mysterious Pilot Bearing Piece
 

Funny, looks like the bottom spacer on my 4" angle grinder.
My milwaukee circular saw has a piece like that also that locks the blade in place.
That is an odd one.

Re: Mysterious Pilot Bearing Piece
 

Yep, lock washer to a circular saw

Re: Mysterious Pilot Bearing Piece
 

:lol: Son of a gun! I even have and use circular saws!

Re: Mysterious Pilot Bearing Piece
 

CKfan I think you have solved the mystery:lol: