Outer Limits 4x4 Board

I ran the rig today and found that with my hydro assist the steering was a bit delayed or slow to react(easy at slow speed hard when reafin off the wheel)


is there a way to up the flow easy or is there a pump out there i can adapt????


Chad

Hi Chad

What power steering pump are you using

Adrian

toyrex wrote:Hi Chad

What power steering pump are you using

Adrian

The standard 2.8 pump. I have heard now that there is not much difference between all the pumps in the amount that they flow.

yes but the pump and steerin box can b modded 4 more flow and pressure, search 4 it on pirate i have seen quite a few threads about it

http://www.pirate4x4.com/forum/showthre ... =pump+mods

here is one thread i found ill cif i can find the other one i read that was really helpful

hypolux wrote:yes but the pump and steerin box can b modded 4 more flow and pressure, search 4 it on pirate i have seen quite a few threads about it

Cheers

I haven't checked the above link (my comp dies when I open up pirate) but if it's like all the others then it will involve opening up the reducer fitting at the pressure out port and possibly shimming or stretching the relief valve.

In my experience, this is not the problem. I have done these mods a number of times (and ruined good pumps because of it) and the only time that you notice a difference is then the fluid becomes aerated.

So my interpretation of this is that the galleries or ports on the box are too small to allow enought fluid transfer. But once the fluid becomes aerated, then it passes through easier and thus faster.

I checked this by drilling out the reducer in 0.5mm increments. I couldn't detect any difference until it started to whine. Then the steering became great. Unfortunately, pumps don't like this and every time you turn the motor off, it spews fluid everywhere.

The best pump mod is probably to install a saginaw pump as many have used these with success in lots of applications. Unfortunately, I don't have an easy answer for the box issue except for using a smaller ram and thus requiring less fluid transfer.

Good luck!

I had a simular problem out of frustration I changed the pump and the problem was solved

Adrian

toyrex wrote:I had a simular problem out of frustration I changed the pump and the problem was solved

Adrian

changed it 2 wot ??

hypolux wrote:

toyrex wrote:I had a simular problem out of frustration I changed the pump and the problem was solved

Adrian

changed it 2 wot ??

Simple basic common sence I replaced the Hilux diesel pump with another Hilux pump simple eh


Adrian