rear steer control

small45

Well-Known Member
Joined
Dec 16, 2007
Location
green hill nc
i'm going to ditch my elec. rear steer setup and go for a log splitter valve. i've seen that george and kevin are both running this style but i'm not sure how it is plumbed. any help would be appreciated.
 
follow the spool diagram on the valve. P is the line from the pump, T is return line. A and B ports go to either side of the steering ram...
 
Orbital return to in on the valve (front close to handle) top fittings to ram, return..back fitting (away from handle) to cooler then to res.

Some on Pirate went to log valve first but George and I both went with orbital first.

Did you look at my setup? Right hand on steering wheel, left on log valve. Also helps keep my left arm inside.

By the way, once you get the log valve, you have to back the spring ball detent out so the joy stick will return to center on its own.

KC
 
kc4x4 said:
Orbital return to in on the valve (front close to handle) top fittings to ram, return..back fitting (away from handle) to cooler then to res.
Some on Pirate went to log valve first but George and I both went with orbital first.
Did you look at my setup? Right hand on steering wheel, left on log valve. Also helps keep my left arm inside.
By the way, once you get the log valve, you have to back the spring ball detent out so the joy stick will return to center on its own.
KC
Click to expand...

thanks, that's what i was unsure of. i thought that's what george said but i couldn't remember. are you running a stock pump or psc?
 
Stock!!!!!

I've been through 3 PSC pumps in the last month. Still fighting with them. I don't know why I went with them, the stock one works just fine.
 
I thought the output line from the orbital is a low pressure line?

Mine's plumbed the other way, to the rear-steer valve first..
 
as predicted, the psc pump took a shit today.the log valve works like a champ though. thanks for the pointers kevin.
 
vanguard said:
Unless you're running a jeep or toyota pump. If that's the case than the stock pumps don't push enough cfm (they do about 2/3 of what a chevy PS pump does).
Click to expand...


Newer jeeps use a tc pump, like Kevin's ls1. Most of the older ones I've seen use a p pump, similar to chevy's.

I know nothing of this toyota thing you speak of.
 
any ideas what the 3rd port is on a stock 6.0 ps pump and what to do with it? anybody got a better way to bleed the system than 2hrs turning back and forth on jack stands?
 
ok so i've built a one gallon res that gravity feeds to 1/2" inlet that i installed into the stock gm pump res body. the line from the big res is 10" long with no bends in it. the res is approx 9" above the pump. once i fill it, then crank the eng.,the pumps starts to whine BAD. if i removed the lid form the pump while running, i can look into it a see the flow from the big res. it seems like the pump is faster than the res can feed in. i think this because i'm getting pressure build up in the res.
i tried adding a 12" piece of radiator hose to the pump res and it shut up.
it is a hydra boost pump so i simply looped the second out line to the factory return on the pump body. could this be my issue?
any input is appreciated as i only have about two days to get this working. btw...yes the system has been bled of air
 
small45 said:
good point, it has one high pressure out and then two hose barb presumably in.
Click to expand...


You should just be able to block one of the returns odd, I assume they both go back into the stock res. can.

Look like this? How did you attach the 1 gal res?
 

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i drilled a hole in the upper right corner and welded in a bung so as to use the large dia hose that fed the psc pump. yes that's my pump
 
I used a gear-reduction drill to spin the pump on mine at ~300rpm when I was initially purging the lines of air before the engine had been ran.. If you just changed the pump and nothing else, I wouldn't worry too much about it, just the fluid circulating should purge the air bubbles, but don't turn the wheels, or you may introduce aerated fluid into a line that didn't have air before.

For your pump/system, both return lines should be capped off, and the return from your steering system should feed your large reservoir. Also, the cap on the pump - it should be totally sealed, I think most of them aren't very airtight...

Hope this helps..
 
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