SOHC.co.uk Forums > CB500/550

500 Tappet cover head size

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McCabe-Thiele (Ted):
I know its a pretty basic question but are the Tappet covers an odd size as 16 mm is too small and 17 mm is a very sloppy fit even on the flats never mind any rounded corners?

Bryanj:
17mm six sided socket or the flat spanner in toolkit that you didnt get!

Oddjob:
Always 17mm Ted. If not they ain't genuine.

As Bryan says, try ands use a 6 sided socket.

Genuine seem to be better made IMO.

McCabe-Thiele (Ted):

--- Quote from: Oddjob on September 29, 2023, 04:50:10 PM ---Always 17mm Ted. If not they ain't genuine.

As Bryan says, try ands use a 6 sided socket.

Genuine seem to be better made IMO.

--- End quote ---

Judging by the marks they are original!

I still have a set of chromed ones from DS that I never fitted to my 400 as the the threads seemed poor quality with what appears to be chrome splatter on the the threads Not worth risking  stripping a thread on the cam cover. I don't have a nut that I could use to try to sort them out.

taysidedragon:

--- Quote from: McCabe-Thiele (Ted) on September 29, 2023, 04:54:59 PM ---
--- Quote from: Oddjob on September 29, 2023, 04:50:10 PM ---Always 17mm Ted. If not they ain't genuine.

As Bryan says, try ands use a 6 sided socket.

Genuine seem to be better made IMO.

--- End quote ---

Judging by the marks they are original!

I still have a set of chromed ones from DS that I never fitted to my 400 as the the threads seemed poor quality with what appears to be chrome splatter on the the threads Not worth risking  stripping a thread on the cam cover. I don't have a nut that I could use to try to sort them out.

--- End quote ---

Try using a thread chaser to clean them up.

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