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You need a 12 volt diaphragm vacuum pump, capable of a minimum of 15psi.
The ones I used (for work) in OZ were made by Thomas (USA). An industrial pump supplier should be able to sell you one.
Blow is a pic of the thomas pump and a link to the specs.
Nick (in the Falklands!) wrote:The Perks have CAV DP-? Series too...I'll have to have a look & see what the suffix is...
(Some have an earlier design with no electric solenoid port, the one in the Eager Beaver's like that; the 50-Series one has obviously been set up for it in earlier life, but in the L/R, its been set up for manual operation...)
It is of course pretty easy to tell the DPA pump from the others, but there are DPS, DPT? and others that are reasonably similar to the DPM.
Lexi, ....if you're in Scotland, it should'nt be too hard to track down an alternative pump, & thats a belt-drive vacuum pump....you can see the one on the pickup in the pic where it shows a vertical veiw of the diff clearance.....its the round silver thing up by the thermostat housing, with a black hose going to the servo.
This was fitted to 2.25l diesel 110's (on the other side of head) FX4-R taxi's, UMM Transcat/Alter, & last time I got a price in UK from a 'Ex & M' taxi-dismantler, a NEW one was about £114-00 (without pulley)...
I got that one locally for a similar price from a dealer, & the pulley came fom 'Dingocroft'.....
You DO need a 24v petrol crank pulley to drive one of these, & in our case, I have used a 24v petrol timing case & mounted it using part of a 24v generator bracket (..total 'factory parts conversion' (!!) ..& NO welding..!) Even the adjuster bolted to a 2.5l Diesel fan shroud bracket that bolted right on to therm housing..!
Your other alternative is a 'Denso' (or other) Japanese make alternator from a Toyota or similar, that has a pump on the back of the alternator.
The One Ton model was introduced in September 1968 as an uprated version of the 109" Long Wheelbase Land-Rover. The vehicle was specified as having a 2.6 litre six cylinder petrol engine, and the gearbox from the IIb forward control. The axles were heavy-duty ENV units. Later series IIIs had front and rear Salisbury axles from about 1973/4 (suffix B), and later still the front diff became the standard Rover unit (Suffix C).The chassis frame was a reinforced item, featuring drop shackle suspension pioneered on military vehicles. The 900x16 tyres on extra deep dish rims were carried over from the forward control. Longer brake pipes were fitted as well as a Servo, front brakes being wider than standard.
GDay all,
I think there was a white one (ex Navy) at the LRO club expo at Penrith on Sunday. A SII owner was waxing on about it, being the bees knees etc etc, and as a RR owner, his BS did not make a lot of sense.
Michael T
