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hydraulic pump

Tech Talk for Rover owners.

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hydraulic pump

Post by gali »

hi there,

is the ZF74 goes for the original stock power steering pump at the landrover?
I'm looking for a hydraulic pump for my hydraulic winch & crossed this pump at few websites as ZF74.

if do, what are her specs?
if don't, what are her specs compare to the stock one?

Gali.
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Post by Bush65 »

AFAIK the ZF74 is not a popular conversion here in Aus.

I believe the flow rate is a little more than the stock pump, but nothing to get excited about.

If you want a bigger power steering pump, there are some model Saginaw pumps from USA vehicles that have a higher flow rate than the ZF74.

Personally for a hydraulic winch (I have 3), I would use a gear pump from one of the many hydraulic suppliers. Something around 50 to 60 litres per minute will make your winch perform well. And will out perform any power steering pump.

Editted to correct typo in 1st line.
Last edited by Bush65 on Mon Sep 04, 2006 8:28 pm, edited 1 time in total.
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Post by Troll00 »

Where can you get the Saginaw pumps from in Aus
The Original Massojet
Check you local 4x4/Ray's Outdoors store for stock NOW
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Post by ISUZUROVER »

Bush65 wrote: I believe the flow rate is a little more than the stock pump, but nothing to get excited about.
Slight hijack...

John - do you have any flow rate specs for the gear driven pump fitted to the 4BD1s
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Post by not not »

Damo Most saginaw pumps come of ford engines.
Twenty4-7 Rock Racing
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http://www.mickeythompsontires.com.au/index.htm
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Post by Bush65 »

Some Holdens have Saginaw pumps.
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Post by not not »

Blue and Black 6es i think did
Twenty4-7 Rock Racing
#247
http://www.mickeythompsontires.com.au/index.htm
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Post by Bush65 »

ISUZUROVER wrote:
Bush65 wrote: I believe the flow rate is a little more than the stock pump, but nothing to get excited about.
Slight hijack...

John - do you have any flow rate specs for the gear driven pump fitted to the 4BD1s
Vane pump.

Theoretical (no internal leakage) displacement 12.2 cm^3, 0.732 in^3 per rev.

Relief valve preset pressure 85 kg/cm^2, 8336 kPa, 1209psi.

Flow rate 8 litre/min, 1.8 imp gal/min at 200 rpm.

Pump operating speed 450 - 4000 rpm.

Pump to crankshaft speed ratio 0.89 (25/28).
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Post by ISUZUROVER »

Thanks John- just found this!!!
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Post by raptorthumper »

FYI: A lot more information on Hydraulic Clutch Pumps for Hydraulic winches is located here:

http://www.outerlimits4x4.com/ftopic164293-0.php
98 GU Patrol. 4.0L Barra, BF engine. 3" Lift. 85% Marks reduction Gears. 35x12.5x15 Maxxis Bighorns, 3" Zaust.
http://www.outerlimits4x4.com/viewtopic.php?f=16&t=86831&start=210
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