TJ Power Steering O-Ring Size Question - JeepForum.com
 
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post #1 of 8 Old 05-18-2013, 10:06 AM Thread Starter
NIB-98TJ
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TJ Power Steering O-Ring Size Question

Seen this questions asked many times and I have never seen a good answer for it; I see why now. Iím replacing my steering box and have removed one of the o-rings from the power steering hose fitting. The o-ring cross section is not round; itís kinda wedged shaped. Itís flat on one side (1.5mm) and tapers to an edge on the other side. Itís 2mm thick and has an ID of 8mm.

I have a question for the folks whoís rebuilt steering boxes came with replacement o-rings (my $400 Borgeson from PSC did not ). Were the replacement o-rings round or wedge shaped like the OEM o-rings?

Thanks for any help,
NIB


98 TJ, 4.0, 5 spd, 1" MM, 1" BL, RE 4.5" LA's, 36" TSL-SX's, D44/D44, ARB's, Atlas 4.2, etc
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post #2 of 8 Old 05-18-2013, 10:47 AM
Jonny Jeep
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They'll be round to begin with and squash to the shape you've found them in. I've replaced them in the past, but having said that I've never had a leak from the fittings just leaving the old o-rings in place.
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post #3 of 8 Old 05-18-2013, 03:04 PM Thread Starter
NIB-98TJ
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Quote:
Originally Posted by Jonny Jeep View Post
They'll be round to begin with and squash to the shape you've found them in.
That must be right, but the way the mold seam looks, it almost looks like it started out that way. Now I just got to figure out what size it was when it was round before it got crushed into that wedge shape.

I know Jeep would rather sell a $50 hose than a $2 o-ring, but it pisses me off that they don't sell those o-rings seperate. Almost makes me want to buy a yoter....... almost.

Thanks,
NIB

98 TJ, 4.0, 5 spd, 1" MM, 1" BL, RE 4.5" LA's, 36" TSL-SX's, D44/D44, ARB's, Atlas 4.2, etc
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post #4 of 8 Old 05-18-2013, 05:53 PM
jr03
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Hydraulic shop wil probably have the orings. If cant figure out size close enough ask to see a new hose a parts house and see what size it uses
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post #5 of 8 Old 05-18-2013, 10:52 PM Thread Starter
NIB-98TJ
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I ended up ordering 1.5 mm thick and 8mm ID buna-n from mcmaster carr.

http://www.mcmaster.com/#9262K445

98 TJ, 4.0, 5 spd, 1" MM, 1" BL, RE 4.5" LA's, 36" TSL-SX's, D44/D44, ARB's, Atlas 4.2, etc
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post #6 of 8 Old 06-01-2013, 11:13 AM Thread Starter
NIB-98TJ
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This o-ring size and material worked for me on my 1998 4.0 TJ: http://www.fototime.com/inv/75D66059C361E91

98 TJ, 4.0, 5 spd, 1" MM, 1" BL, RE 4.5" LA's, 36" TSL-SX's, D44/D44, ARB's, Atlas 4.2, etc
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post #7 of 8 Old 05-07-2014, 04:00 PM
btn
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Does anyone know if the fitting at the pump for the hose and reservoir fittings uses the same o-ring as the steering gear?

2000 TJ, 4.0L, 4" suspension lift, 35s, rear D44 and front HP30 both with ARBs. AX15, 4:1 T-case.
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post #8 of 8 Old 07-10-2014, 12:25 AM
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Quote:
Originally Posted by btn View Post
Does anyone know if the fitting at the pump for the hose and reservoir fittings uses the same o-ring as the steering gear?
FYI, yes they do. They're interchangeable.

2000 TJ, 4.0L, 4" suspension lift, 35s, rear D44 and front HP30 both with ARBs. AX15, 4:1 T-case.
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