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ATCO 4 stroke

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markpounder Thu, 02/06/2016

Hi,

Have started on a ATCO 4 stroke with Villiers MK 7.

Engine mainly stripped having trouble with the kickstart gear on crankshaft.

Does the nut pull off.

Also having trouble with clutch, stripped to as in picture

The sleeve is stuck solid and having trouble with nut on other .

Any help welcome

Cheers

Mark

Forums

wristpin Fri, 03/06/2016

My guess is that the nut is screwed on with a left hand thread so that the action of kick starting the engine will tighten it. It will probably be fairly tight so if you have a decent sized ring spanner try shocking it off by striking the spanner with a copper faced or dead blow hammer.

The sleeve may free with a bit of gentle heat but even if you have access to something quite fierce beware of softening the spring. An alternative is  to find a substantial bit of iron to act as an anvil and rest the cylindrical part on it and then hit opposite it with a drift and lump hammer. (usual hand and eye protection etc). Rotate the sleeve and and hit it several times from different directions and hopefully this will shock it enough to break the rust bond between it and the shaft. Then if necessary leave it in a bath of diesel or heating oil for a day or two in the hope that it will creep between the shaft and sleeve.

markpounder Fri, 03/06/2016

Hi ,

Thanks for the response ,am at work now until Monday so will look again then. The nut seems to be flush against a keyway which is why I was not sure if it screw off or pull.

Cheers Mark

markpounder Mon, 06/06/2016

Hi,

Kick start is stripped and crankshaft removed, nut pulled off over the keyway, not tried clutch yet will now have to wait till wednesday,

and yes I have posted this on another forum as well.

cheers

Mark