[charlie]

Good progress. You will soon have it tuned up and ready for a bit of lawn mower racing!

[charlie]

We are a horticultural and garden machinery club so would not really have knowledge of Lister D prices. You would be better to contact a stationary engine club.

[charlie]

No photos. File too large, needs compressing.

[charlie]

April issue now uploaded to website.

[charlie]

A photograph of the engine will help confirm make and model and ensure correct information is supplied.

[charlie]

Good news, the magazines are in the post, my copy arrived today.

[charlie]

Is this the sort of unit?

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[charlie]

The Howard Bantam had several different engines over the years. Early models had a Villiers Mk25c, later a Howard AC engine was fitted. Other engines included BSA, Villiers 4 stroke B&S etc.
A photograph of the engine on your machine will help identify it. A 2 stroke can usually be identified by the lack of any means of adding oil to the sump (crankcase) as petrol 2 strokes rely on the oil in the fuel mixture for lubrication.

[charlie]

The split pin is there to stop the rings turning in the groove. As a 2 stroke it is important that the ring gap does not line up with any of the ports in the cylinder bore, this could happen if the rings did not have the split pin to prevent then moving.

[charlie]

To remove gudgeon pin (wristpin) remove the clips part number 10297, see parts manual plate 2 for illustration.

[charlie]

Glad to know they could help, thanks for the update.

[charlie]

The break in the piston is probably where the broken ring came out. It would be worth cleaning the piston to see how bad the scoring is. You will need new piston rings, not sure if the break in the piston will cause ring failure again as ring will not be supported by groove in piston at that point.

[charlie]

Welcome to the club.
One possible source of piston rings is Cox and Turner Engineering

[charlie]

When the engine is running you should see the rear pto turning. With engine running when you pull on clutch lever the pto should stop. Note the series 3 Monrotiller has two levers that look like clutch levers, one is the clutch the other operates the reverse gear which is located on left hand side of gearbox towards the rear.
A workshop manual is not available for these machines but I do have operators manual which includes illustrated parts list. I have sent you a private message with my email address, if you want a copy of the manual please send me an email.
I also have the factory records and can date your machine from the machine number stamped on the makers plate, not the engine number.

[charlie]

Yes next magazine will be mid to late June so too late for you. An online auction would be your best option or maybe the Road Roller Association can help. It is certainly too good to scrap.

[Author]

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