04-09-2023, 05:14 PM
I have a 2-bearing spit & hope engine which didn't show any oil pressure after being unused for several months.
I've replaced the pressure relief spring & ball and also fitted new springs in the oil pump.
Nothing actually looked obvious although there was a small patch of what could have been rust on the relief valve ball.
I've put the engine back in the car but before adding all the ancillaries decided I'd try hand cranking it to see if there was now any oil pressure on the 0-10 psi gauge which there wasn't. I did disconnect the feed to the oil pressure gauge at the crankcase and after some fairly brisk hand cranking oil did start to flow from the fitting.
Would you expect a measurable pressure from hand cranking or should I re-fit everything so I can try running the engine?
John.
I've replaced the pressure relief spring & ball and also fitted new springs in the oil pump.
Nothing actually looked obvious although there was a small patch of what could have been rust on the relief valve ball.
I've put the engine back in the car but before adding all the ancillaries decided I'd try hand cranking it to see if there was now any oil pressure on the 0-10 psi gauge which there wasn't. I did disconnect the feed to the oil pressure gauge at the crankcase and after some fairly brisk hand cranking oil did start to flow from the fitting.
Would you expect a measurable pressure from hand cranking or should I re-fit everything so I can try running the engine?
John.