Asked this years ago so somewhere on here is the answer…
What size thread to blank off the tacho drive pinion on engine casing?
Vague memories of a Vauxhall sump screw?!?!
Asked this years ago so somewhere on here is the answer…
What size thread to blank off the tacho drive pinion on engine casing?
Vague memories of a Vauxhall sump screw?!?!
Well it will be the same thread as the tacho drive outer that screws in there. In theory, being alu I would expect the thread to not be fine - so std metric of whatever dia it is.
Either ways, I have one in Blue (a plug not a tacho drive) and it’s due out into the light at the weekend for a final check before MOT so if I remember I’ll have a look.
M14 x 1.5 rings a bell,
(put one in mine about 10yrs ago, memory is not quite what it was)
Ps about 20mm long