[charlie]

Ed, welcome to the forum.
It is always difficult to give valuations, it might be worth looking on e bay to see what they are making on there.
If you intend showing at events you will need public liability insurance, the easiest way to get that is by joining the VHGMC as insurance is included in the cost of membership, £17/year for UK single member.

[charlie]

John, these engines don’t have a huge amount of compression, have you checked valves and seats for pitting or any burnt areas? Can you feel any sign of compression if you take the plug out and put your thumb/finger tightly over plug hole?
I need the machine serial number which will be on the makers plate, and sometimes on gearbox near one of the dipsticks. The number you have given looks like the engine number.
I don’t think there was a +60 option on piston size, obtaining one if there was may be a problem. If needed it might be worth honing the bore and fitting new rings. The workshop manual says end gap of ring should be 10 thou and replace if it is 30 thou.

[charlie]

It may be possible to unseize the piston, but it could take a while depending how badly seized it is.

[charlie]

I have the wire tines on my 56, not used the slasher type although they are very similar to normal digging tines on MonroTillers. On the Rototiller the springs are different for wire and slasher tines, the later have a casting that sits inside the loop of the spring. The wire tines are prone to straightening out if they catch on a tree root and are almost impossible to bend back into shape.

[charlie]

So long as the ground is not too wet you will find it produces a very tilth.

[charlie]

Mike I may have a drawing for the exhaust, let me know if you would like a copy.
Rather than pull the lead off push pliers tight onto cylinder head then whilst applying pressure touch them against plug top a lot less painful. That is how I stop my Trusty Earthquake.

[charlie]

Sounds good. What did you have to do to get it running?
Is that a Rototiller 35 I saw in the video

[charlie]

Do you have then cowling that goes over the flywheel and magneto assembly? If so a photo of that would help.
Any part numbers on the sump or engine block which you could tell us would help with identification.

[charlie]

And of course the mug (available here) we should all have in the workshop. I already have a T shirt with this on.

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[charlie]

The following flowchart is one I am sure most of us have seen but does fit in with previous discussion on here.

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[charlie]

Very interesting, never seen one of those before.

[charlie]

Could there be a spring that would go between the cup with chain and end cap missing?

[charlie]

A useful how to guide. There is something very satisfying about making repairs like this.

[charlie]

Good news. I have made various gaskets but never attempted a head gasket.

[charlie]

What’s the tractor in your profile image anyway? An Anzani maybe? In working order?
It is a Swiss made SIMAR rototiller. An ongoing project, the engine has had new crank seals (it is a 2 stroke) and a new big end roller bearing made, new cone clutch lining, magneto rebuilt and various other jobs. All paint and tin work are still original. It has run once but was a pig to get started so timing and fuel delivery need checking.

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