Oil pressure relief valve broken?

[TVaRt]

Hi, I took the outer plug and spring out of the pressure relief valve today, but I could not get the piston deep in the bore out! It wouldn't move but I also couldn't pull it out as there is no way to grip it at the bottom of the pipe!? How have other people pulled the piston out?

[TVR Beaver]

stick your little finger in the middle of it.. you can usualy pull it back... keep it as square as poss... if it sticks, push it back in a tad, then pull out again...
Why do you says its broken?... what the symptoms?

[TVaRt]

Long story, but gauge is showing no pressure after a top end rebuild. I've orders a new sender but have dropped the oil and sump to check things over, change te pick up pipe gasket, and thought it a good idea to check the valve too! Oil light goes out on cranking btw

[Pupp]

A small magnet probe should extract the piston if it's ferrous.

If the pressure light is going out when cranking and/or running, you would appear to have oil pressure

[TVaRt]

Going to pick one up tonight from screwfix! Could do
With one anyway. I'm really hoping it's just the sender, sounds sweet anyway!

[blitzracing]

cant you just drop the plugs out and crank it over for a few seconds?- the oil pressure should push it out anyway- could be messy though.

[TVR Beaver]

sounds like its all okay.. If the lights going out your fine... it will be the sender

[TVaRt]

Magnetic do dah from Screwfix worked a treat, just popped right out, all checked and it slides fins, spring was 60+mm long too and seemed ok, so just waiting on the sender now from TVR parts.