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AMX Manual Steering Gear |
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Ohio AMX 
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Charter Member Joined: Jun/29/2007 Location: NE Ohio Status: Offline Points: 4864 |
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 Topic: AMX Manual Steering GearPosted: Aug/14/2019 at 8:28am |
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From what I've found in the TSM a 1969 vintage manual steering box contained some type of grease. Over the decades it breaks down, turning to liquid, which then leaks out since the box is not designed to contain it. What is the procedure to clean out and repack the steering gear with grease, and what type of grease is recommended for this?
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1940 Hupmobile Skylark
1968 Javelin future Pro Street 1969 AMX 290/auto (first car) AMO# 983 |
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tomj
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Joined: Jan/27/2010 Location: los angeles Status: Offline Points: 3612 |
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Posted: Aug/14/2019 at 10:04pm |
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wouldn't that just be remove, disassemble and rebuild? |
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1961 roadster american, 195.6 OHV, T5
1968 american, 199ci, T96 sr-ix.com |
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Ohio AMX
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Posted: Aug/15/2019 at 7:10am |
Yes, mainly seeking recommendations for the grease. |
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1940 Hupmobile Skylark
1968 Javelin future Pro Street 1969 AMX 290/auto (first car) AMO# 983 |
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BrotherBamc
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Posted: Aug/15/2019 at 7:34am |
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When I rebuilt my manual steering box I used sticky red grease.
https://www.amazon.com/dp/B000M8O056/ref=nav_timeline_asin?_encoding=UTF8&psc=1 |
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Trader
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Posted: Aug/15/2019 at 7:54am |
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The original was "AMC Chassis Lubricant". I have never seen a breakdown of this but would expect it to be lithium based EP2.
That stated, grease is made from a metal "soap" and oil. Mixing greases can cause chemical reactions that break the lubrication properties down. When you do the rebuild it would be best to flush all remaining grease and document somewhere what you do put in for the next rebuild in 30-50 years:)
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Mopar_guy
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Posted: Aug/15/2019 at 7:58am |
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I remember this subject back in my Mopar days and you should use a moly grease, not a chassis grease. Some people refer moly grease as axle grease or wheel bearing grease. It's usually a finer, or smoother grease than chassis grease. That was years ago so maybe there's some equivalent. I did a little searching and some guys use John Deere "Corn head" grease. Here's an explanation of it - "The Corn head grease is a #00 grease which is self leveling. All that
means is that it will return to level as it sets, normal axle grease
will stay where its pushed out of the way, the #00 grease will return to
where it started from." Either way you go the one thing I see in common with all of them is fill the box up all the way so that when it settles or melts, you don't have exposed gears or bearings.
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Steve_P
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Posted: Aug/15/2019 at 8:15am |
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I was going to suggest the gear box grease like the old snapper riding mowers used. It's #00 and is somewhat of a cross between grease and gear oil as far as viscosity; here is the generic:
https://www.amazon.com/Stens-770-123-00-Grease-oz/dp/B001OKBHRK The "moly" greases are basic chassis type grease with a few percent (low single digits) moly added. A real moly "grease", with high moly content (65%), is thick and would probably cost $1000 to fill a steering box. I have this moly paste when needed: https://www.amazon.com/gp/product/B001HWBSJW/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1 Edited by Steve_P - Aug/15/2019 at 8:18am |
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billd
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Posted: Aug/15/2019 at 8:22am |
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Trader is right-on about mixing types. People have done that and lost axle bearings. I make sure I use the same grease consistently when greasing and don't grab the wrong grease gun after some study on the topic a few years ago.
And Mopar_guy is right on the greases, too - having farmed and serviced all types of machinery, combines, back hoes, trenchers, boom trucks, augers, grain drying equipment, and more..... ever pulled a bearing and seen a stiff ridge of grease? There's moly, lithium, etc. etc. Check this out as a starting point - https://www.machinerylubrication.com/Read/29658/multi-purpose-grease |
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Ohio AMX
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Posted: Aug/15/2019 at 4:48pm |
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I'm a bit concerned that a semi-liquid type of grease may immediately begin leaking out. The self-leveling aspect does sound important though.
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1940 Hupmobile Skylark
1968 Javelin future Pro Street 1969 AMX 290/auto (first car) AMO# 983 |
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tomj
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Posted: Aug/16/2019 at 8:49pm |
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thanks everyone for the discussion on steering gear grease! i had no idea. i'm about to rebuild the manual steering gear in my 68 American. it's operable, but 197,000 miles on it. i've not done a recirculating ball type, only the old worm and sector types. where to get a rebuild kit for it? rockauto lists rebuild kits but they seem to be for power gears, though will shortly try to disambiguate the kits they do list. any hints on tearing into these things? |
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1961 roadster american, 195.6 OHV, T5
1968 american, 199ci, T96 sr-ix.com |
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tomj wrote:
