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Old 02-23-2022, 02:17 PM   #1
RobertGary1
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Default Steering rack leak

Got a pretty good leak at the intermediate steering shaft input. Considering trying to replace the seal vs get a j/y rack. Anyone here have experience replacing that seal?
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Old 02-24-2022, 04:50 PM   #2
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Default Re: Steering rack leak

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Originally Posted by RobertGary1 View Post
Got a pretty good leak at the intermediate steering shaft input. Considering trying to replace the seal vs get a j/y rack. Anyone here have experience replacing that seal?
I suggest buying another rack and pinion assembly and experimenting on your leaking one. The seal kits are inexpensive. The only risk is going through all that work, reinstalling the unit and then spraying fluid on the cars behind you on the expressway. Hopefully they won’t think it’s brake fluid

I don’t mean to be a prick, but be advised that the actual bushings that support the rack are sloppy on most units. No one replaces them, so no matter how much you pay for a rack and pinion assembly, you might get a unit that is slightly sloppy when making a hard right turn. How much you care about that is based on your own standards.

Make special note of the O-ring seals where the pressure and return lines connect. Make sure the new replacements are exactly the correct size.

It can’t hurt to have a spare steering rack. They aren’t making any more!

If you want your rack and pinion serviced by the people who built them, TurnOne-Steering offers a service.
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Old 02-25-2022, 06:07 PM   #3
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Default Re: Steering rack leak

Also, something to watch for, the inner tie rod is screwed in so tight that the ends of the rack are a tiny bit “mushroomed”. This means that they will not side past a snug fit bushing without trying to ream it out. They will however, slide past a loose fit bushing. A sharpening stone or a fine grinder will remove the ridge, carefully.
As far as new bushings go, there are slide-hammer tool sets available that would make it relatively easy for a professional rebuilder to install a new, “snug” bushing on the left end of the unit.

A salvage yard is not a bad place to look for a rack and pinion either.
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Old 02-25-2022, 06:37 PM   #4
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Default Re: Steering rack leak

The S-Series rack is virtually stolen out of the Miata parts bin.

Not sure if this power->manual rack guide will show the tear-down you're looking for but it's a place to start: https://www.flyinmiata.com/tech/depower.php?x=1
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Old 02-26-2022, 10:08 AM   #5
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Default Re: Steering rack leak

Quote:
Originally Posted by bumpdraft View Post
Also, something to watch for, the inner tie rod is screwed in so tight that the ends of the rack are a tiny bit “mushroomed”. This means that they will not side past a snug fit bushing without trying to ream it out. They will however, slide past a loose fit bushing. A sharpening stone or a fine grinder will remove the ridge, carefully.
As far as new bushings go, there are slide-hammer tool sets available that would make it relatively easy for a professional rebuilder to install a new, “snug” bushing on the left end of the unit.

A salvage yard is not a bad place to look for a rack and pinion either.
I think the junkyard price the rack with the inner rods. The reman and new racks seem to come with the inner.
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Old 02-26-2022, 11:13 AM   #6
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Default Re: Steering rack leak

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I think the junkyard price the rack with the inner rods. The reman and new racks seem to come with the inner.
I was just commenting on how rebuilders do not replace the bushings. They can’t put the rack back in without removing the mushroomed end, unless they don’t bother to replace the bushings...even though their literature leads you to believe that they do indeed replace the bushings.
Meaning, there is no good reason to buy an expensive remanufactured unit over just buying a used one from a salvage yard.

If you buy a used unit, just pop the cap off the bottom of the pinion shaft and check the grease. Also, slather some good, slimy, clingy grease to the gear rack teeth and the hole for the tension adjuster block.

Once the rack and pinion assembly is out of the car, it is relatively easy to replace the inner tie rods. Just make sure to place a giant padded crescent wrench (or vice) at the rack teeth to take the torque reaction of loosening/tightening the tie rod ends.

The Miata images are close enough.

Note that I had my rack and pinion redone at TurnOne Steering, after I put new, Teflon-lined bushings into it. Because, no one puts new bushings into Saturn S-Series steering rack and pinion units, no matter what they might lead you to believe in their online literature selling reman units. A rebuilder would need to buy a service tool made for removing/installing bushings in rack and pinion units.
If I’m wrong about that, please correct the misinformation!
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Old 03-10-2022, 02:41 AM   #7
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Default Re: Steering rack leak

> new, Teflon-lined bushings into it.

>AWESOME<
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