john.k

The AC lift pumps arent meant to have tapered pipe threads screwed in........the correct fittings ,as shown in the drawing,have parallel threads and a cone seat that seals against a matching cone seat in the pump body ......alternative arrangements that are correct are a bulged pipe end and a black rubber grommet with compression nuts (Perkins use these)...,or banjo fittings..............any kind of tapered pipe fitting mayl split the weak zamak alloy.

The CAV 6" starter has been salvaged ......one will cost you up to $1000 now ,if bought from a antique electrics specialist.

People throw Gardners in the scrap here ......so I would have no hesitation scrapping a Dorman.

You may have the lift pump plunger on the cam lobe ,which will reduce or stop fuel flow.

The 4LW in the crane was the quitest ,easiest starting diesel Ive ever had ...........an alternative motor was a 3/71 GM ,a noise maker if ever there was one .If the crane had a GM,I could have sold it easily...........there is a sort of US inspired cult of millenial climate change deniers ,noise and emission lovers .

No one wants vintage diesels any more ..... I had to give away a really nice 4LW Gardner a couple of months ago .......still in the crane ,left it with the people where the crane is now ........I told him not to scrap the motor ....its an original 1960 Gardner power pack.,

Using the wrong oil will make clutches chatter as they engage ....as will worn friction linings.