[Gonzalo Bravo]

Empezado por Hilux Surf-Vigo

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Empezado por Gonzalo Bravo

Yep, aparte de supraforums.com, supraforums.com.au, yotatech.com, etc, pero en general son foros de autos, por lo cual les interesa mas que funcione, no que alimente un hydroboost o rram.

Retiro lo dicho

this is how to modify the hudraulic pump which runs the radiator fan as comonly found on the front of most 1jz water pumps to run your power steering, i have done this over 3 years ago and is still working perfectly, you must do it where i

the pumps are the same type and generic pressure but the fan pump is set to have more flow rate. Both pumps have a built in controll valve that keeps the flow and pressure constant no matter what the engine revs are, so by reducing the outlet hole size from the shuttle valve the flow is reduced without loading up the pump or overheating the oil

check the pics the numbers coraspond to the instructions below

1. take off the banjo bolt and outlet hose

2. take off the big bolt at the bottom remove the shuttle and spring

3. this is the hole at the bottom of the outlet thread which needs to be reduced, drill it out and tap it m8

4. screw a very short countersunk m8 cap screw in the new thread with a 3mm hole drilled down the center, you may need to grind down the head a little, like the picture, to fit it down the hole, make sure it doesnt poke through the inside too much and you may need to fit the shuttle and spring before screwing it all the way in, do it up TIGHT!

put it all back together

note: you CAN NOT restrict the flow at any other place such as the end of the banjo bolt this WILL NOT WORK!!! even though it looks to do the same thing. There is a tiny oil gallery about 0.5mm diameter off to the side at the bottom of the outlet hole this controlls the shuttle valve and the restriction must be BEFORE this gallery

If your game to experiment you may find easier ways of reducing the hole such as driving in a little short tension pin or something