SOHC.co.uk Forums > CB750

Oil Filter thread size

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captaink:
Hi , does anyone know the thread size for the oil filter bolt that screws into the lower casing.
I need to clean the thread, so want to order a tap to suit

Regards Keith
CB750 1977

captaink:
Thanks, but I think that's too small, have been told M20 x1.5 which sounds correct but thought id ask others

philward:
Just measured a spare - its m20 x 1.5

Sent from my MotoG3 using Tapatalk

Trigger:
Why not just buy a new bolt ?

hairygit:

--- Quote from: Trigger on April 06, 2017, 06:44:34 PM ---Why not just buy a new bolt ?

--- End quote ---
My thoughts exactly, with such an engine life critical part, if the thread is damaged, heat and vibration will only make it worse, and the engine would not last long if it started leaking while riding it, if you survive the inevitable accident caused by oil spewing on the road directly in line with the rear wheel. Seen it happen on a 400/4 many years ago.

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