The Wasteland Survival Guide: Engineering Greta - Page 391 - JeepForum.com

 
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post #5851 of 8099 Old 11-21-2013, 06:10 PM
MO2500
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Difficult, but not impossible. The gear installs I've done take a pretty good amount of work to get the carrier in during final install and you can feel a pretty good amount of preload on the bearings. If you don't struggle getting it lined up and forced into the housing, you need more shims.

It's been awhile since I've looked at case spreaders, but they only recommend spreading the housing up to a maximum value, what is that value and would it be any different if you added that much shim and drove it in the housing without a spreader?



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post #5852 of 8099 Old 11-21-2013, 08:00 PM
clintrivera
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It would be nice if Dana axles used side adjusters. That would make it easy. To give you an idea how much carrier bearing preload you are supposed to have, some side adjuster housings spec up to 200 ft pounds of torque on the side adjusters for preload. I really don't think you can get that kind of preload by pounding thin shims between a carrier and the housing with a mallet.

Dana wants the housing to be spread up to .015" and THEN pound as many shims as you can into the thing. You are supposed to only be able to remove the carrier after the housing is spread, and then with pry bars. It's almost impossible to get too much preload, very easy to not get enough.

It it a huge big deal? No. Most shops don't use one since it take another 30 seconds to set it up and from the way factory carriers fall out when the caps are removed they aren't even tight enough from the factory.

If, on the other hand, you are pushing the gear set HARD, you will want as much preload as you can get to mitigate ring gear deflection, especially if your housing is prone to flex. This is one of the reasons the first generation D30 ARB failed. Not enough carrier preload coupled with a floppy housing made everything move around inside the housing flexing the case of the ARB and eventually snapping the heads of the bolts off.


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post #5853 of 8099 Old 11-21-2013, 08:11 PM
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Quote:
Originally Posted by clintrivera View Post
I really don't think you can get that kind of preload by pounding thin shims between a carrier and the housing with a mallet.
I should mention, every one I've done is shimmed under the bearing, so there is no pounding thin shims in. I agree, you wouldn't get anywhere near enough trying to do that.

You make a fair point, it would be better to have a spreader so you can get the most preload, but I was just pointing out that it is done all the time without one, most people are not going to push the limits of the housing and gear set enough to where more preload would make the difference between the gear set holding up or not. I've yet to break a set of gears myself but we'll see what happens when I start using excessive right foot with the new powerplant


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post #5854 of 8099 Old 11-21-2013, 08:36 PM
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A spreader is really easy to build. I am building one next week for my upcoming regear.


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post #5855 of 8099 Old 11-21-2013, 09:31 PM
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Quote:
Originally Posted by Hendrix View Post
A spreader is really easy to build. I am building one next week for my upcoming regear.
Should be amazing based on your build. And remember, easy is relative. I can easily diagnose a misfire on a 2013 BMW, but I don't know how to weld.


On a non jeep related note: its almost the 50th anniversary of Dr. Who. That's a big deal, and if you all disagree, I will forcefully remove myself from this thread with a Sonic Screwdriver.
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post #5856 of 8099 Old 11-21-2013, 09:41 PM
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Knock Knock.
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Doctor
Doctor Who?
Correct.

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Rock crawling is a whole 'nother animal. To me, the off-camber low rpm negotiation of lines provides a different type of adrenaline than plowing through mud. It's terrifying at times, but the pride of looking back at what you just climbed over is what is addictive.
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post #5857 of 8099 Old 11-22-2013, 06:09 AM
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Quote:
Originally Posted by Hendrix View Post
A spreader is really easy to build. I am building one next week for my upcoming regear.
I was just going to recommend that...saw this a while back and it popped into my head when this discussion came up, this particular one is kind of ugly, but did the job beautifully apparently: http://weldingweb.com/showthread.php...21#post2074421

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post #5858 of 8099 Old 11-22-2013, 09:29 AM
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Unfortunately, ARB puts it's shims on the outside. If you don't get enough preload the seal housing spins and breaks the air line off. The instructions require the use of a spreader.

Like said, it would be easy to make one. 3 pieces of flat bar, two bolts and nuts, some all-thread and two nuts for that.


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post #5859 of 8099 Old 11-22-2013, 11:30 AM
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Long time reader first time poster here. I started reading this thread last week and I've taken a wealth of information from it. Now it's time for the boys and I to get out to the shop and get the old CJ running.
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post #5860 of 8099 Old 11-22-2013, 05:02 PM Thread Starter
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Today's Jeeping: Some sort of virus escaped from the Biological Research Wing and I've not felt well since yesterday. Comments and responses when/if I recover; if I turn into a ghoul or zombie, someone end it quickly, m'kay?

If it's worth doing, then it's worth overdoing.

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The build, the gear, and the mileage:
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post #5861 of 8099 Old 11-22-2013, 08:06 PM
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Deal, on the condition that since I deal with radiation if i turn huge and green and stalking around the wasteland that you will do the same for me!

Every day above dirt is a good day!- me
WJC # 4.0!
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post #5862 of 8099 Old 11-23-2013, 02:45 AM
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Big and green? If you get angry do your clothes tear off? Always wanted to ask why the pants are the only thing that stayed put.

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post #5863 of 8099 Old 11-25-2013, 09:57 AM
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I'm pretty sure there are some Deathclaws roaming around this area. Don't go into the Wasteland unprepared

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post #5864 of 8099 Old 11-25-2013, 06:37 PM
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I'm in Dallas right now for training. Figured while I was a bit closer, I might as well grab some Shiner.


It gets better the closer you get.


Having one for you tonight Sundowner. To your health and happiness!
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post #5865 of 8099 Old 11-25-2013, 08:31 PM Thread Starter
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Having one for you tonight Sundowner. To your health and happiness!
I'm still not feeling that great, but I'm halfway-mobile again.

If it's worth doing, then it's worth overdoing.

The Republic of Dave: Bringing you the finest in simian testing supplies.

The build, the gear, and the mileage:
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