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64 american 3sp column shift |
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
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Posted: Sep/15/2017 at 5:11pm |
AMC retained the fabric inner pivot mount/isolator all the way through to the end. i replaced mine with two pieces of 20 ga sheet metal cut to a guess of the original size. i later replacet it with a heim joint. it only flexes "much" if you let the motor mounts go rotten. the pre-64 Americans have a very short and soft clutch pedal. mine's all in in the last inch at the top (someone increased with my homemade pedal setup). the cover has only four springs in it! if the clutch IS fully releasing, and it grinds 2 to 3, then it's synchros. i have a pile of NEW and used T96 parts, including a tool to assemble the needles in the countershaft, if anyone want 'em. reasonable cost. i bought them new from NorthWest Trans. lol, i could go into the T-96 rebuild business at this point, only no one would want to pay for it. i might take this seriously if more than one person asked for it. parts are gettign scarce though. i even have OD parts. |
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7555 |
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lol, a slow shift from 2 to 3 is common! actually not really joking -- pretend it's 1948, not 2017. this was a very light duty, old transmission when AMC adopted it. it is a vey, very low performance transmission. it simply cannot be shifted quickly, by antthing like modern standards. you are better of shifting by how it feels inside the transmission -- even 2 to 3, with clutch fully depressed, pull from 2 to N, then into 3 feeling for the mainshaft teeth touching the countershaft teeth. even if you can't feel it, imagine it! the synchros are too small, even new. the factory spec is 0.090" of clearance from the brass cone to the gear -- plenty of room for it to take angular forces it wont' survive if shifted hard. pretend it's 1948, you're on an old crowned road with 80 hp, working up to the breakneck speed of 50 mph. that was the world when this transmission was merely adequate. i strongly recommend AGAINST downshifting. i dont know where that habit comes from. it's not helpful. brakes are for braking. road racers downshift going into a corner to be be in the right gear coming OUT of the corner. not to brake the car. that puts 'braking' force ont he rear wheels right when they're being un-loaded by the turn. it braking is inadequate, fix brakes :-) it might be fine in a T10 but in a T96 you are simply asking for trouble. and shifting 1 to 2 is ok, but as above, and slowly. shifting 2 to 1 is simply a bad idea. if you get *very* proficient with it, and after you've taken one apart so you know how it works! lol, im almost not kidding -- then you can double-clutch and borrow the synchro by playing a game with the countershaft and get it into 1st with no grinding under about 10mph but absolutely no load on it (eg. coming to a turn). |
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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tyrodtom
AMC Addicted Joined: Sep/14/2007 Location: Virginia Status: Offline Points: 6214 |
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I think the earlier Americans had that flexible belt in there because the through the floor pedals were almost directly connected to the engine, you'd naturally have a lot of pedal movement with the engine running.
With the remote linkage, under the dash, like the 64 and later have, you don't need that extra isolation. I don't know what kind of linkage the 61-63 had. But if there's grinding on the 2nd to 3rd upshift, and you're shifting slowly, that's almost surely clutch adjustment. Even on transmissions without any synchros, the 2nd to 3rd is the easiest to make without getting a grind.
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66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
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Good suggestion! On the earlier Americans there is a rubber link between the clutch pivot and engine block. Don't recall if the 64+ used that or not. That thing degrades and stretches over time. Bad design? No -- it takes some vibration out of the clutch and lasts 20 years or so. You can replace it with a solid piece or use some HD flexible material, like industrial belt material. Tire sidewall may work, but didn't for me. Tire was old, so it didn't last long. If you can find a rather new tire that was damaged and cut a piece from the sidewall that might last a while. The heavier duty the tire the better, just harder to cut and drill holes in.
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Frank Swygert
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tyrodtom
AMC Addicted Joined: Sep/14/2007 Location: Virginia Status: Offline Points: 6214 |
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The grind between 2nd and 3rd might be the clutch not completely disengaging.
Are you putting the clutch all the way to the floor ? About where in the pedal travel does the clutch start engaging ?
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66 American SW, 66 American 2dr, 82 J10, 70 Hornet, Pound, Va.
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19692 |
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A 64 American would have a T-96 as the stock three speed. There is only ONE synchronizer, and that's between 2 and 3. A slow shift from 1 to 2 is common. After you drive a bit you will figure out at what speed it "likes" to shift. Probably about 15-20 from 1 to 2, 30-35 from 2 to 3. Shifts between 2 and 3 (up and down) shouldn't be hard, but just sedately change the gears. Think about grandpa (when he was younger though!) just driving around. NO column shifter is fast, even if all gear were synchronized! When you hit the "sweet spot" speed it will just drop right into gear, maybe with a little "chunk", but shouldn't be a "grind".
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Frank Swygert
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tamvette68
AMC Apprentice Joined: May/05/2011 Location: lafayette, loui Status: Offline Points: 141 |
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well I did it with the forums help. I can now shift into all gears. Just a simple linkage adjustment. The U shaped linkage had somehow slipped under the 2/3rd shift pin?. Disconnected the shifts rods and readjusted everything and greased really good. So far so good. But still have a slight grind in 2 and 3. I have to shift very slowly and it helps somewhat.
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tamvette68
AMC Apprentice Joined: May/05/2011 Location: lafayette, loui Status: Offline Points: 141 |
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they do have it but he told me to take mine apart first to see exactly what I need to fix it.
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pacerman
Supporter of TheAMCForum Joined: Jul/03/2007 Location: United States Status: Offline Points: 9060 |
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Blaser's in Illinois probably has that bushing but be prepared to pay for it. Joe
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Happiness is making something out of nothing.
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tamvette68
AMC Apprentice Joined: May/05/2011 Location: lafayette, loui Status: Offline Points: 141 |
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thanks farna...I will try that. I had read somewhere someone used a wood plug with success. thanks again
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