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General Forums => The Mess Hall => Topic started by: stan98tj on August 28, 2013, 07:31:37 PM
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I purchased a Durango Steering Box to replace my stock one given my increased tire size and the fact my stock one was leaking from every possible place. This is a fairly common swap. All went well on disassembly, until we took a look at the lines and tried to match them to the new box. Firstly, the 4cyl seems to have a power steering sensor that apparently prevents the engine from stalling when turning the wheel (supposed to kick up the RPM a bit). The Durango lines don't allow for that. I need new lines however, and when we tried to plug the old lines into the new box, we found they were too small and wouldn't thread.
Any ideas on how to rig this so that it will work?? I guess, there is no getting around the sensor, so basically I need lines that will fit the box.
The sensor:
(http://i733.photobucket.com/albums/ww339/domeslacker/Axle%20build%20Aug%202013/durango_zpsd2466485.jpeg) (http://s733.photobucket.com/user/domeslacker/media/Axle%20build%20Aug%202013/durango_zpsd2466485.jpeg.html)
The Durango lines:
(http://i733.photobucket.com/albums/ww339/domeslacker/Axle%20build%20Aug%202013/durango1_zpsd8ef3271.jpeg) (http://s733.photobucket.com/user/domeslacker/media/Axle%20build%20Aug%202013/durango1_zpsd8ef3271.jpeg.html)
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A hydraulic shop can see you some bushings that will adapt..
Dave
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A hydraulic shop can see you some bushings that will adapt..
Dave
But will that affect the pressure?
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YJ ps lines work for me.
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But will that affect the pressure?
it will not, pressure would be the same and is regulated by a valve in the pump, a smaller hose or fitting will affect the flow but not the pressure, i doubt that's going to be an issue.
but check to see if the YJ lines fit like Bounty said (probably the better option since it would have the pressure switch thingy on the line and no adapters required)
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it will not, pressure would be the same and is regulated by a valve in the pump, a smaller hose or fitting will affect the flow but not the pressure, i doubt that's going to be an issue.
but check to see if the YJ lines fit like Bounty said (probably the better option since it would have the pressure switch thingy on the line and no adapters required)
do the YJ lines have a sensor on them?
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do the YJ lines have a sensor on them?
Yes.
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so if I understand correctly, YJ lines can be used on my TJ and will fit the Durango box?
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But will that affect the pressure?
Pressure no affect. volume slightly, that could potentially make the box respond ever so
slightly slower but in this scenario you probably could not tell.. The YJ pump provides plenty of flow..
Dave
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so if I understand correctly, YJ lines can be used on my TJ and will fit the Durango box?
according to Bounty it should (he's spot on usually so i'd say it's a pretty good chance that's accurate) but to make sure take it back to napa and compare with a YJ line
oh, and you only need the hi pressure line (the one with the sensor mount), the other one seems long enough and if not you can use the rubber from your other pump (it's not high pressure, that's the return so just use regular clamps at both ends).
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I said YJ without looking at what model Jeep you're working on. I'd just use OEM lines for your Jeep.
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I said YJ without looking at what model Jeep you're working on. I'd just use OEM lines for your Jeep.
That's the issue, the OEM TJ line doesn't fit the box. The fitting is too small.
Bounty, you're running the Durango box on your YJ? I checked the number stamped on my Durango box to make sure I have the correct one and it seems folks are using that one. Do you happen up know exactly which box you are running?
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A hydraulic shop can see you some bushings that will adapt..
Dave
It will most likely come down to using the TJ lines and an adapter at the box for the high pressure line. Probably a company like PSC would have the adapter.
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Pretty sure mine is a '99 Durango box, and using stock YJ lines with no adapter fittings. There is no snow-plow option for '99, that was a '98 option.
What year is your TJ?
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Pretty sure mine is a '99 Durango box, and using stock YJ lines with no adapter fittings. There is no snow-plow option for '99, that was a '98 option.
What year is your TJ?
I called PSC and apparently TJ/YJ/Xj/2.5l/4.0l fittings are all the same. I ordered a 4cyl high pressure and low pressure hose. I'll see tomorrow.
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I called PSC and apparently TJ/YJ/Xj/2.5l/4.0l fittings are all the same. I ordered a 4cyl high pressure and low pressure hose. I'll see tomorrow.
It seems that what is happening is one of these two alternatives:
1) The box in the TJ is not a stock TJ box, and neither is the high pressure line
2) The parts store gave you the wrong steering box, one that does not work with the stock TJ fitting
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Power steering pumps are generally positive displacement vane pumps so a smaller line will increase the pressure drop through the line not the flow.... i wouldn't worry about line size as long as its not smaller than the original line for the pump.
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Power steering pumps are generally positive displacement vane pumps so a smaller line will increase the pressure drop through the line not the flow.... i wouldn't worry about line size as long as its not smaller than the original line for the pump.
only if it cannot sustain flow, there's a limit in pipe (or fitting) diameter difference at which pressure drop is negligible, it is more significant in gasses which are compressible, not so much in liquids, also depends where your pressure hold point is, and in this case is the box when it is loaded (when you turn the wheel, at which point the pressure is applied in between the pump and the box thru the hi-press line and fittings along the way).
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There were no fitting issues at all when I put the '98 box in my '01. As for the sensor, I honestly don't recall having to deal with one. So, I guess I'm not much help to you.
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I'll have to wait until I swap in the new 4cyl lines I'm getting from Napa. The Durango lines can't be used because they won't allow for the sensor to be attached. From my understanding, the sensor is there to kick up the RPM when turning the wheel to prevent from stalling out.
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that's what is for, mine broke and it bogs down in rpm when i reach the end of the travel on my steering, it's good to have (i got one from the wreckers but didn't get a chance to put it on, you have to glue it though if it doesn't come with the connector on it so i'd be interested how yours comes to know if i should just order one).
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that's what is for, mine broke and it bogs down in rpm when i reach the end of the travel on my steering, it's good to have (i got one from the wreckers but didn't get a chance to put it on, you have to glue it though if it doesn't come with the connector on it so i'd be interested how yours comes to know if i should just order one).
Is there a chance it doesn't come with the sensor connection? I know I'd be using my sensor, but why wouldn't it come with the connector if I ordered the OEM replacement?
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So how did all this get resolved?
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I ordered the 4cyl lines and used those. They were a pain to get right, had to position them just right in order for them to connect correctly. I had to use the original fitting from the line from the reservoir to the box as for some reason the guy at NAPA couldn't figure out how to order a new one for me. I think it will work out ok. I'll find out when the build is finished and I fire her up.