Toyota power steering pump

Poohbair · Jun 4, 2008

Anyone have a link to a tech article about the power steering pump mods on a Yota pump for more pressure? I have searched around and cant seem to find a good one.

Thanks in advance :awesomework:

HillbillyPlumber · Jun 4, 2008

http://www.pirate4x4.com/forum/showthread.php?s=&threadid=167299

Poohbair · Jun 4, 2008

good link. thanks

Alot of the posts in there are guys w/ assist rams. I don't have a ram... anyone on here done these pump mods w/o hydro assist?

My steering just seems shitty at best for only having 35's, and it is really bad when they are down around 4psi

skrause · Jun 4, 2008

Poohbair said:
good link. thanks

Alot of the posts in there are guys w/ assist rams. I don't have a ram... anyone on here done these pump mods w/o hydro assist?

My steering just seems shitty at best for only having 35's, and it is really bad when they are down around 4psi

Par for the course. Mine with 36's and stock PS = popeye arms. :redneck:

Poohbair · Jun 4, 2008

skrause said:
Par for the course. Mine with 36's and stock PS = popeye arms. :redneck:

Have you done any pump mods?

skrause · Jun 4, 2008

Poohbair said:
Have you done any pump mods?

Nope. Hence, "stock". :redneck:

WHITE TRASH1 · Jun 4, 2008

I use small washers for my R/C shiat to shim the relief valve without having to shave the piston. Then I drill the restrictor and call it a day. It works fawking sweet with full hydro too.

Trailtoy1993 · Jun 4, 2008

x2 on being good without ram asssist. Do the pump mods and you will be happy even without the ram.

skrause · Jun 4, 2008

Trailtoy1993 said:
x2 on being good without ram asssist. Do the pump mods and you will be happy even without the ram.

Both flow and pressure? I'd think without a ram all you really need to worry about is shimming the relief valve... :eeek:

Trailtoy1993 · Jun 4, 2008

skrause said:
Both flow and pressure? I'd think without a ram all you really need to worry about is shimming the relief valve... :eeek:

I never have shimmed mine I just bore it out and it makes a big difference. only need to shim if you have a loss of pressure and I haven't once I drilled the valve.

WHITE TRASH1 · Jun 5, 2008

Shimming the relief valve raises what pressure the pump will bypass at. Drilling the restrictor upps the volume only....

For a ram you need to lose the restrictor so the steering isn't so slow. If you still can't turn it needs more pressure...