Rack and Pinion Rebuild

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beemnmatt
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Re: Rack and Pinion Options

Postby beemnmatt » Mon Apr 26, 2010 6:49 pm

Hello..

Anybody know the procedure for reassembling the rack? I am not sure if there needs to be zero air in the system or what. This rack has the hydraulic lines. Any help would be appreciated

I also have a lot of seals left over from the kit... Is that the manufacturer providing extras or am I missing something?
thanks

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Re: Rack and Pinion Options

Postby Yoshi » Mon Apr 26, 2010 6:52 pm

you're treading new path for this forum... try realoem's break down?

I don't think the system needs to have 0 air in it. The pump should take care of that when you start up the car.
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Re: Rack and Pinion Options

Postby M20_fever » Tue Apr 27, 2010 2:44 am

it's a self bleeding system, you can leave the rack empty and fill it once everything is together. Just top off the tank and turn the wheel left and right a few times, and check the level, top off again.
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Re: Rack and Pinion Options

Postby beemnmatt » Fri Apr 30, 2010 8:16 pm

How important do you think this plastic sleeve is? New ones did not come with the kit.... There appears to be two main seals for the rack shaft, one on the end of the shaft and one on the inside of the rack itself, each having this mysterious plastic sleeve...The one that goes on the end of the shaft is fine, I put the new seal, no problem, but the one from the inside of the rack got damaged upon removal. Is this thing even necessary? If it is very important wouldn't there be new ones in the kit? Need you opinions guys...

Thanks
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Last edited by beemnmatt on Fri Apr 30, 2010 8:18 pm, edited 1 time in total.
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Re: Rack and Pinion Options

Postby Yoshi » Fri Apr 30, 2010 8:17 pm

looks like a spacer... I'd try to reuse it. But I'm not one to talk. never done this before.
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Rack and Pinion Rebuild

Postby beemnmatt » Fri Apr 30, 2010 8:19 pm

Okay, here goes the write up, e36 rack and pinion reseal

Before we start I removed the "nut and spring" that put tension on the rack shaft
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1. Clean the rack!
2. Remove plastic cover on the steering spindle and remove the circle clip
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3. Remove the 22mm nut on the bottom of the steering tower, and remove the inner 13mm cadmium plated lock-nut
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4. Tap out the pinion gear from the bottom. At this point, steering fluid will pour out so make sure you have a catch can handy.
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5. Remove the rightmost air crossover fitting from the rack (this is the one attached to the plastic hose).
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6. Pry out the large metal ring from the rack through the plastic fitting's hole. Be careful not to mar the hole, otherwise the air crossover fitting may leak.
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7. Tap the end of the rack that has the teeth with a hammer, be careful lots of fluid may leak out
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8. You can now pull out the rack. Inspect it for corrosion, and if there is, buff it out with very fine grade sandpaper (400 grit) in a circumferential pattern
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9. There are two important seals here that should be fairly straightforward to see.
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This one, just get something to catch the lip, and tap with a hammer, you can see I used a breaker bar and tapped the seal out with a hammer
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10. Remove the bottom bearing in the steering tower. You will now have access to the pinion ring seal. Drive this seal out and reinstall the new seal
Again, find something to catch the lip, it pops right out
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11. Replace the four o-rings and 4 sealing rings on the pinion gear.
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my kit came with one seal to replace the two that I removed, they are almost the same thickness
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Dont forget to replace the seal attached to the rack shaft and the one that slides off the pinion shaft
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12. Clean the rack and re-grease the rack. Reinstall the rack, slide the moving seal onto the rack, noting direction, then replace the end retaining ring.
13. Reassembly is pretty much the reverse of dis-assembly. Make sure to re-grease everything! (shaft and pinion)
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Last edited by beemnmatt on Sat May 01, 2010 1:57 pm, edited 1 time in total.
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Re: Rack and Pinion Options

Postby M20_fever » Sat May 01, 2010 4:55 am

top notch write up, sticky for you. My only suggestion is to change the thread title so it easy to search for, like rack rebuild or something.
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Re: Rack and Pinion Options

Postby ten2doyle102 » Mon May 10, 2010 1:01 pm

Very cool! We got a lot of good info on this site. Now we just need to get people to use it!
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Re: Rack and Pinion Options

Postby Yoshi » Mon May 10, 2010 2:16 pm

Dude that is fucking AWESOME! I'm so doing this soon. Thank you!
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Re: Rack and Pinion Options

Postby M20_fever » Mon May 10, 2010 11:40 pm

Very well done!

if you decide to continue improving this I suggest supplying part numbers and/or links to where you sourced the parts.
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Re: Rack and Pinion Rebuild

Postby Yoshi » Mon Aug 02, 2010 1:50 pm

I changed the name cuz I was looking for this and couldn't find it lol.

Where did you get the seal kit from?
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Re: Rack and Pinion Rebuild

Postby joecrotch » Wed Sep 01, 2010 3:28 am

omg i just found this.......this is a top notch sticky!

anyone ever find out where to get the seal kit?


also yosh if i was going to swap for a e36 rack would a 318ti rack work i found a re-built one for 160
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Re: Rack and Pinion Rebuild

Postby Yoshi » Wed Sep 01, 2010 1:04 pm

I think any E36 rack should work.

any no, still waiting on link for the seal kit cuz I'm too lazy to look for it myself.
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Re: Rack and Pinion Rebuild

Postby M20_fever » Wed Sep 01, 2010 5:58 pm

do some research before you buy that ti rack, IIRC different models of the e36 chassis came with racks with different ratios. The 318ti got the bottom of the barrel parts for everything else, I assume the rack is the least desirable. This is all speculation, which is why I suggest you do some research on your own.
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Re: Rack and Pinion Rebuild

Postby joecrotch » Thu Sep 02, 2010 3:38 am

thanks I'll poke around and report back.
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