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Trunnion help |
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TheRambler
AMC Apprentice Joined: Sep/29/2019 Location: Idaho Status: Offline Points: 62 |
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Posted: Jan/25/2020 at 4:46pm |
OK I did a search on this site and found that the older trunnions had grease fittings and or a vent fitting. I have a 69 Rambler and was looking at them and can not see any fittings or vents. It appears to have leaked some kind of lube from the top just below were the spring setts. Is there a way to lube the trunnion or must it be romved?
Thanks for any help
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6768rogues
AMC Addicted Joined: Jul/03/2007 Location: United States Status: Offline Points: 6234 |
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The units I have dealt with had a drain hole and no place to lubricate. I have had replacement bearings with a hole for a pinhole grease gun attachment, but I have never seen an original with a place to add lubricant. Edit: My experience is with 66-69 Americans.
Edited by 6768rogues - Jan/26/2020 at 10:44pm |
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Located usually near Rochester, NY and sometimes central FL. |
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Heavy 488
AMC Addicted Joined: Apr/27/2019 Location: In the Status: Offline Points: 3529 |
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Ive seen a grease fitting on a large body but they used an actual bearing unlike the small body.
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LakesideRamblin
AMC Addicted Joined: Dec/21/2015 Location: So. California Status: Offline Points: 2683 |
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Don, the small cars (at least Americans) did not come with grease fittings. However, I have seen (I think on this Forum) others that have installed grease fittings on our style trunnions. You may get someone replying who has done it or look in the search function and find a thread. I could swear I saw a picture on this Forum at one time in the past.
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LakesideRamblin
69 Rambler 360 73 Javelin 360 "If you could kick the person in the pants responsible for most of your trouble, you wouldn't sit for a month." T. Roosevelt |
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TX390AMX
AMC Addicted Joined: Dec/27/2012 Location: Indiana Status: Offline Points: 803 |
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I have one 68 AMX that has zerk fittings on the trunnions and on the upper control arm pivot bushings. Don't know how or when these were installed. None of my other 68's have/had this arrangement. I've rebuilt 6 or 7 Javelin and AMX trunnion front ends using the Pro-Thane poly bushing replacements, none of them had the zerks either. It's not that difficult to do, but it's not as simple as it looks either. If you decide to go the Pro-Thane route, PM me for a bunch of photos & descriptions I've put together to take the mystery out of trunnions.
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Terry
68 AMX 390 4 Sp Rally Green 68 AMX 390 4 Sp Matador Red 68 AMX 390 4 Sp Calcutta Russet 56 Chevy Sedan Delivery 2016 Can AM Spyder 55 Chev pickup |
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Steve_P
AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3760 |
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As others have said, the Rambler, AMX, Javelin style trunnion didn't have grease fittings. Same with the 1970s AMC and identical aftermarket replacement parts
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6762 |
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I added grease fittings to mine, but the rubber was replaced with bronze bushings that I machined for the job. The grease fitting greases the bronze bearing and thrust bearing in my redesigned trunnions (69 Javelin).
No issues in 7 years, handles extremely well.
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TheRambler
AMC Apprentice Joined: Sep/29/2019 Location: Idaho Status: Offline Points: 62 |
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Well I cleaned the trunnion housings and found what I believe is a vent hole. Is this the hole people have been putting grease in with a needle greaser? If so what kind of grease?
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mark09
AMC Nut Joined: Dec/14/2012 Location: indiana Status: Offline Points: 279 |
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As you said, it's a vent hole. The trunion is under a plastic cap
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TX390AMX
AMC Addicted Joined: Dec/27/2012 Location: Indiana Status: Offline Points: 803 |
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If you grease the vent hole, all you'll do is have a pile of grease on the inside of the trunnion housing, right below the coil spring. It's shaped like a cone, the vent hole is to let water out when driving in the rain. The bottom of the trunnion cone has a plastic cap to keep the moisture out of the trunnion bushing. Doesn't always work! The actual trunnion bushing is in the area below the cone shaped part, it's about 4" tall. The top part of the steering spindle is what goes inside the trunnion bushing. Think of the trunnion as a multi part upper ball joint. The trunnion bearing supports the weight of the front of the car. The trunnion bushing allows the spindle to pivot for steering inputs. Not that complicated, just different. Nash/Rambler/AMC used trunnion front ends from the early 50's thru 1969 on many different cars.
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Terry
68 AMX 390 4 Sp Rally Green 68 AMX 390 4 Sp Matador Red 68 AMX 390 4 Sp Calcutta Russet 56 Chevy Sedan Delivery 2016 Can AM Spyder 55 Chev pickup |
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