The Old Lawnmower Club
Collection, Preservation and Display of Old Lawn Mowers

Ransome Twentyfour 1975 clutch plate/assembly removal

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RobertAlan

Hi,

I recently bought a Ransome Twentyfour with the plan to refurbish it. My first plan was to get the engine working which is in progress and I have started it a few times.  However, I believe there is a problem with the governor and want to access the crankcase cover.  I have removed the engine from the mower and now need to remove the Clutch plate assembly

 from the crankshaft.  I have tried several pullers to no avail.

Can some please advise how I do this.

Many thanks Alan

Member : RobertAlan

Forums

Splitpin Wed, 11/02/2026

From memory, on the back of the flywheel/clutch wheel there's a grub screw with an allen key fitting. There is a keyway on the crankshaft as well.

RobertAlan Fri, 13/02/2026

Many thanks I will check for the grub screw.  I thought I had looked but another check won't hurt.

RobertAlan Wed, 18/02/2026

No grub screw I'm afraid.  I cleaned all the paint off just to be sure.  Just to be clean, this is not the main engine flywheel but the other side of the crankshaft which sends the drive out to the mower via a centrifugal clutch.  The clutch housing/flywheel holds the expanding pads. 

Splitpin Sun, 22/02/2026

Have a look inside the bearing.  There may well be a counter-sunk (left handed thread I think) screw.  If that is the case, then the bearing needs to come out for access to this.

RobertAlan Mon, 23/02/2026

Thanks again for further advice

I have looked inside through the bearing centre and can see the initial UNF, so you are correct it looks like it must be threaded.  Having studied the end if the screw section which only just comes to the end of the boss , it looks like the thread is  RH, which looking at the rotation of the shaft this seems correct, as the shaft turns anti-clockwise on that side.  If my thinking is correct then this will err towards tighten as the engine as it turns.   I have considered adding some heat at the engine side but am concerned about the oil seal, so maybe that won't be a solution.  Using a lever on the clutch pad location dowels and a  large hammer might be a solution.

I looked at removing the bearing  but it is inset and there is no inner face to attach a puller to.