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steering effort |
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7544 |
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manual steering is sensitive to scrub angle, which is the first thing to go when wide wheels are installed without re-choosing the backspacing so that scrub angle is accommodated. this link shows it pretty well:
https://en.wikipedia.org/wiki/Scrub_radius with power steering you can pretty much ignore it, but depending on the combination of wide tires and spacers etc you could really feel it. the older cars with really skinny tires that always had manual steering, high box ratios and giant steering wheels were really easy to steer (but not much else). the rest is taste i guess. i like the driving feel of manual boxes and don't mind the wrastlin' |
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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LakesideRamblin
AMC Addicted Joined: Dec/21/2015 Location: So. California Status: Offline Points: 2691 |
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Love my manual steering (rebuilt my Saginaw box on my 69 Rambler - non-quick ratio) and all stock rebuilt suspension front and back. Feel the road baby with manual steering. Caveat, it is a personal preference.
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LakesideRamblin
69 Rambler 360 73 Javelin 360 "If you could kick the person in the pants responsible for most of your trouble, you wouldn't sit for a month." T. Roosevelt |
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19676 |
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I think you are on the right track with the adjustable pressure valve. Then you can tune the steering to something you can live with, and easily change it for the type of driving you're doing. Going to a car show in the city? Dial in a little more pressure. Nice country twisty road drive? Dial it back some... Near $100, but should be worth it.
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Frank Swygert
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Wrambler
AMC Addicted Joined: Jul/02/2007 Location: West Virginia Status: Offline Points: 4199 |
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This works for saginaw pumps. Take the high pressure hose off. There will be a valve and a spring under the big nut.The pressure valve lives in there. Two ways to make it better, valve from a CJ. Or take one apart and save all the little shims sitting under the nut on the end of the valve. Then take yours apart and add the spacers from valve one. snug it up good and fill it up with fluid and work the air out of the system. I did this 15 years ago and that along with a 73 steering box have made my care pleasure to drive, its cheap, invisible and reversable This works on any Saginaw box. Flaming river or one of the other aftermarket steering places sell a kit to drop the line pressure when running the high press saginaw pump with a ford rack I'm running a Wrangler pump on my serpentine belted 4.0L it puts out around 800 psi verses the 1100 or so the other XJ boxes run.
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Wrambler
69 AMC Rambler 4.0L, 5 speed 2015 Grand Cherokee Limited 2019 Chrysler 300 |
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akimmet
AMC Nut Joined: Aug/02/2012 Location: Republic OH Status: Offline Points: 428 |
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Pump pressure isn't the problem.
Alignment makes a big difference in steering effort. Try dialing in as much caster as possible with your trunions. Sadly the trunions usually prevent setting the caster high enough. If an alignment doesn't help, look into an aftermarket upgraded steering box. Look for one with at least a .210" t-bar for a more modern car feel. The stock size is probably a tiny .165". Increasing the t-bar size is the correct way to increase steering effort in an integrated power steering box. If you can afford it, a Delphi 600/670 box has a better spool valve design than the old Saginaw 800 boxes. |
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Jav Dog
AMC Apprentice Joined: Mar/23/2017 Location: Philly Status: Offline Points: 65 |
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Is it possible to lessen the steering assist with a larger size pulley on the power steering pump? Or does anyone make a pressure reducing kit for the Eaton power steering pumps?
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billd
Moderator Group Forum Administrator Joined: Jun/27/2007 Location: Iowa Status: Offline Points: 30894 |
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Too bad that article, like so many in wikipedia, don't go into other very important areas. They ignore some of the other effects of the SAI vs tire center intersection - whether it's above or below the pavement, how much, how it impact brake steer and more. The article isn't bad ........... as far as it goes but my fear is that it would lead some to make changes that just plain aren't safe. I sort of find this thread interesting as IMO, AMC power steering was the least easy steering of that era. If you have the power steering on your AMC - you need to go drive a Plymouth of the same era! NO ROAD FEEL AT ALL.
I hated mid and full-size MOPAR PS back then. A butterfly could land on the steering wheel and send you off the road. |
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Sonic Silver
Supporter of TheAMCForum Joined: Nov/23/2011 Location: East Tennessee Status: Offline Points: 7949 |
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billd
Moderator Group Forum Administrator Joined: Jun/27/2007 Location: Iowa Status: Offline Points: 30894 |
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I concur......
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purple72Gremlin
AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16611 |
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