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11-11-2017, 06:08 PM | #221 |
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so why does a worn bearing continue to wear? the wear opens up the tolerances the gap fills with oil and all should be well.
And if the answer is that it just does, then I would like to know how it can be expected that a replacement bearing will not do the exact thing. And if the bearing surface is harder in the new ones, then camshaft wear has to be greater... please explain... |
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11-11-2017, 06:53 PM | #222 | |
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Quote:
http://kingbearings.com/files/Engine..._They_Work.pdf http://www.substech.com/dokuwiki/dok...ngine_bearings http://www.enginebuildermag.com/2017...sel-dominator/ |
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11-11-2017, 08:18 PM | #223 | |
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Quote:
=> http://www.agkits.com/bearing-failure-analysis.aspx => https://www.knowyourparts.com/techni...earing-damage/ => http://mechanicalinventions.blogspot...-analysis.html
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11-11-2017, 09:23 PM | #224 |
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The tolerances aren't opening up uniformly around the perimeter. The rod is growing an oval inside of a circle. Also, the bearing isn't a uniform material throughout.
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deansbimmer3945.50 SYT_Shadow11736.00 |
12-24-2017, 12:36 AM | #225 |
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Did you guys remove both steering rack bolt? I have removed the lower bolt, but curious if the upper bolt needs to be removed. It is a bit harder to reach. thanks.
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12-24-2017, 05:26 AM | #226 |
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12-24-2017, 11:49 AM | #227 |
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12-24-2017, 11:52 AM | #228 |
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12-24-2017, 11:56 AM | #229 |
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Remove the lower column shaft bolt. There is even a notch cut out in the frame to access it from the driver wheel well.
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12-24-2017, 12:14 PM | #230 |
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Dean, is there a good way to know when the wheel is centered? After I disconnected the steering input from the rack the wheel might have spun around 360 degrees one way or another. Is looking at the clock spring the only way?
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12-24-2017, 12:44 PM | #231 | |
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12-24-2017, 12:51 PM | #232 | ||
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12-24-2017, 02:50 PM | #233 | |
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Hope that helps!
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12-24-2017, 10:29 PM | #234 |
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It's simple. When you lift the car just line up the steering wheel straight. Go to remove the bolt on the column; line it up with the access groove in the frame and remove it from the wheel well area with a torx on an extension. Use a bungee or similar to tie the wheel to keep it from rotating while the subframe is down. Once done just put things back, nothing should have moved. The column joint is keyed and will only go on the same way it came off.
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12-25-2017, 12:50 PM | #235 | |
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12-26-2017, 07:47 AM | #236 |
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The clock spring itself rotates several turns past what the steering rack will allow. If it's not lined up close to center then your DSC light will come on since the steering angle sensor is built into that clock spring/switch assembly. You can view the steering angle through a software interface.
If you're still not sure, you can remove the clock spring and count the turns full left, then full right, then center it from there. |
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12-26-2017, 08:57 AM | #237 | |
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Thanks,
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12-26-2017, 09:00 AM | #238 |
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It's the SZL module in the module tree. I use ISTA in my shop. I know SnapOn scanners can see the value too. I don't know for sure about Carly or others.
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12-26-2017, 09:03 AM | #239 |
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Thanks. And physically? What is the best way to re-center if needed?
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12-26-2017, 09:17 AM | #240 | |
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In most modern BMW's the SZL is part of the column switch cluster, aka clock spring, aka turn signal assembly. It's the assembly behind the steering wheel.
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12-26-2017, 09:58 AM | #241 | |
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Given it is -33ºC here right now, I might as well figure out how to take the steering wheel off... Cheers,
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12-26-2017, 12:07 PM | #242 | |
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