Power steering and Hydro boost fluid cooler...

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Power steering and Hydro boost fluid cooler...

Postby thrashingcows » Sat May 21, 2016 10:32 pm

After converting to HB on Ol' Patches I had noticed that the fluid has a heck of a lot hotter then it used to be when it was just running through the PS box.

So I decided I wanted to put some sort of fluid cooler on it. Lots of after market products available, but Being the cheap bugger I am I went to the wrecker and crawled around all kinds of vehicle until I found a cooler on a early 2000-ish Dodge mini van I thought might work...$15! The cooler is for the Crack and Peanut steering system, and is mounted in the sub frame under the front floor boards of the mini van.

I have had this for a couple months and from time to time I would try and find a place to mount it. Well I finally came up with a spot I was happy with, so I got it installed the other day.

I first had to drill out the lower mounting point....used my step drill to take it out to about 5/8 I guess?

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Then I removed the upper bolt for the PS/Vacuum pump unit, and installed the cooler there.

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Then plumbed it up. I did find that it was easier to install the hoses with the cooler removed. I put on about 12" pieces of 3/8" PS hose, and then re-installed the cooler.

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1984/93 Dodge Crewcab, W350, 1 Ton SRW, long box, 330K Km's, M&H spacer, 366 spring, fuel pin to deep side, 14cm housing, Piston LP, PS IC, Isspro Boost, Pyro and tach, NV4500, 29 spline NP205, 3.54's.


Check out the build....http://www.dieseltruckresource.com/dev/ ... 05923.html
thrashingcows
14mm rotor
 
Posts: 575
Joined: Wed Nov 02, 2011 12:00 am

Re: Power steering and Hydro boost fluid cooler...

Postby thrashingcows » Sat May 21, 2016 10:43 pm

Obviously you will have to bleed/prime the PS system again. I jacked up the front end and turn the wheels back and forth with the engine off...SLOWLY...for about 10 cycles (LH to RH and back).

Only issue I had was I changed the orientation of the Hydroboost fluid flow. It used to be the side line on the "T" connection and would come in on the straight line from teh PS box...so I guess the fluid flow was reduced?

Anyway since I had to re-plumb everything on the return line circuit it was easier to have the fluid flow straight through and have the PS box coming in from the side. What this did was lower my brake pedal and cause my brake lights to stay on.

Now when I shut the motor off, and loose Hyd pressure, the brake pedal actually rises. I just re-adjusted the brake light switch and all is well.

I just got back from a 24 hours run...1000+ miles and the cooler works great....even better then I had hoped to be honest. The lines are now only warm, hot screaming hot to the touch. ;)
1984/93 Dodge Crewcab, W350, 1 Ton SRW, long box, 330K Km's, M&H spacer, 366 spring, fuel pin to deep side, 14cm housing, Piston LP, PS IC, Isspro Boost, Pyro and tach, NV4500, 29 spline NP205, 3.54's.


Check out the build....http://www.dieseltruckresource.com/dev/ ... 05923.html
thrashingcows
14mm rotor
 
Posts: 575
Joined: Wed Nov 02, 2011 12:00 am

Re: Power steering and Hydro boost fluid cooler...

Postby b4autodark » Thu May 26, 2016 5:20 am

I really appreciate a low dollar innovative improvement like this. Nice install. Thanks for sharing the details!
b4
b4autodark
fuel screw!!!!
 
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Joined: Wed Apr 13, 2016 5:34 am
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