1939 Triumph Tiger 100 and your Pre-Unit Plunger Pump
Well today I bit the bullet, drained the old girls engine oil, fitted your pump, and refilled her with some of Mr Castrols finest straight 40 oil.
Before fitting I was getting 75psi cold and 30psi at best hot with 15psi at tickover.
With your pump I get 110psi cold 80psi hot with 40psi at tickover.
So on a 39 T100 a Morgo does Go!
Wish I had fitted one years ago. I’m a happy chappie.