How to grind tappet heads.

[OuBallieParticipant @ouballie]

Photo says it all.

I do have a small high speed drilling machine, Dermel equivalent and angle grinders.

Suggestions please, as all eight need doing.

The Warden kit is mocking me, so time to pull finger.

Geoff – Overhaul the SU carb next.

[OuBallieParticipant @ouballie]

Without access to a surface grinder.

[Phil PParticipant @philp]

I would hold them in the lathe and use your dremel in the toolpost to gently remove the dimple.

Have you checked your cam followers they are a bit more of an interesting challenge to re-grind to the correct radius.

Phil

Edited By Phil P on 07/07/2016 13:15:44

[Chris Evans 6Participant @chrisevans6]

Collet chuck on the lathe and turn with carbide then polish up. Or send them to me and I can grind them.

[Gordon FowlerParticipant @gordonfowler20773]

The tappet screws can be done with a tipped tool, for the cam followers I made this, goes in place of the rest.

[Gordon FowlerParticipant @gordonfowler20773]

This should show it better

[OuBallieParticipant @ouballie]

Thanks for the responses.

Cam followers appear fine, BUT will check for uneven contact with trial assembly.

Thanks for the offer Chris, and I will take you up on it if my grinding proves less than satisfactory, after I put the camshaft, block and valve gear back together and rotate the cam to check followers/lobe contact.

Grinding done, using the high speed drilling machine as per photo, and in a typical Heath Robinson fashion by sliding the vice around the table.

A quick lick on X-fine diamond card and result as seen.

Easier than I expected.

Geoff – SU carb, that will replace the original, stripped for cleaning and refurbishing.

Edited By OuBallie on 11/07/2016 14:58:40

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