Thanks, I see what it is for now.

Hi Paul,
What is the purpose of the extra bit of plumbing in Guy's picture.
Thanks,
Fletch

Hi All, Thanks for your replies and pics. I went and visited Lester and he has lent me the very thing. I put it on the bike and turned it over on the paddock starter... And got 80ish PSI on the gauge with oil coming past the valve in the prescribed manner. So the problem is solved. Just need to make...

Hi,
Thanks for the replies.
Has anyone got a picture of the relief valve assembly?
I think after speaking to Mr Longman and looking at the replies what I have got is just a plug.

Hi Pete,
It does not have a "cap" or washer it is just a plug, I will try to up load a couple of pics.

Yes but I still get over 100psi without the spring

Hi, I have just rebuilt my four, it has a mk1 bottom end and cast iron barrels and head. I fitted club con rods, cleaned the sludge trap, oil tank, any oil gallery i could find and fitted a morgo pump. Oil is straight 50. Turning the bike over in first without plugs with a paddock starter resulted i...

True

HI.
Thanks for the reply. I have been looking on ebay for a while with no luck for these items. I have found other items of use to me, just not these.
Fletch

Wanted rear brake peddle and mudguard for plunger square four (1949).
Also front mudguard to fit tele forks for this bike.
Thanks,
Fletch