TO30..NO oil pressure

Thanks to everyone for their input!
Lee

If it was holding 15 psi when you shut down, it sounds like a stuck valve somewhere in the oil system, in or near the filter (at least, on a Standard engine it is).

Measure any positions of pressure and relief adjusting screws before you unscrew everything - that way you can return it all to roughly where it was when you are finished, and can be sure that you aren't too far wrong. Either measure from the casting to the top of the screw/bolt or count the number of turns to undo it - reassembly is the reverse of removal, as they say.

A spring with a ball bearing on the end of it can stick in a bore - it only takes a bit of dirt to stop it doing its thing. Likewise the 'bucket' type valve will also stick if there is wear in the bore, or dirt.

HTH

No movement would indicate a sheared pump drive shaft (again, on the Standard engine this shaft is driven off the base of the distributor drive) - but as you have ignition/spark etc, then the problem will lie (probably) with the tongue that engages with the distributor drive - it may have sheared off.

Off the top of my head I cannot remember if the tongue is on the distributor drive or the pump shaft - I think it may be on the dizzy.

There isn't much else that can cause this problem to occur - and it is probably just due to old age rather than something you have done.

I'm puzzled the filter is empty - it should have at least a filter full of oil in it. Are there any relief valves on the filter body you can check, too?

HTH

Thanks again,

From what they have said it makes good sense to check the pick up tube - I have a feeling that 'our' Standard engine does not have the same problems with losing prime - never come across it so far.

Good luck with tracking down the problem.

Over and out on this one.

James, UK