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steering and suppension |
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db6457
AMC Apprentice Joined: Aug/02/2020 Location: illinois Status: Offline Points: 35 |
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Posted: Sep/28/2020 at 1:21pm |
Hi members started off doing disc brake conversion on 1964 American. After pulling drum seen I had worn busings and bad shocks. So decided to replaced them along with ball joints, tie rods idle and pitman arms. upon futher inspection found left coil spring broken. may as well replace trunnion bearing while I'm in there. My question is after replacing bushing (using prothane bushing) and rebuilting trunnion ( I'm sure I did it correctly) and replaced coil spring , the steering knuckle / spindle is very hard to turn has any one else ran into this problem? I mind you I haven't connected the tie rods yet. Any suggestions Thank you
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7522 |
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They are stiff turned by hand. THe steering box applies a lot more force. If its urethane drag it's fine. If it's metal on metal, bad thrust bearing (those are usualyl bad after 50 years) thats different, and needs addressing.
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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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db6457
AMC Apprentice Joined: Aug/02/2020 Location: illinois Status: Offline Points: 35 |
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Hi Tomj thrust bearing is new and greased must be the urethane thank you
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5368 |
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Do not tighten the nut in the trunion too tight!! It will be in a bind, change the plain nut and lock washer to a Nylon locking nut, that way you can adjust the tension properly.....
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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BU1
AMC Addicted Joined: Aug/11/2016 Location: MN Status: Offline Points: 1973 |
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The poly trunnion bushing issues have been beat to death here. If I am not mistaken, the vertical bushings usually need to be shortened just a bit. If they are too long they will cause a bind. Also I believe Prothane started including a washer at some point that fits in the ID of the top of the poly bushing, but is slightly thicker than the flange on the poly, so the clamping force of the nut and washer is not pinching the poly flange.
PS. Just found my Prothane installation sheet. Make sure you have the top washer in place that is in the kit. That washer is #SLV-61055.
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AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642 #2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959 |
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db6457
AMC Apprentice Joined: Aug/02/2020 Location: illinois Status: Offline Points: 35 |
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First of all I want to thank all the replies once I stuck a long screw driver thru the spindle bolt hole it turned more freely. But I did make a couple of mistakes didn't torque trunion nut to specs (should have known better) and should have put silicone around plastic cover keeping water out now to correct the issue the spring has to come back out. will do the right side the correct way and see how it feels before removing left spring thanks again every one
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BU1
AMC Addicted Joined: Aug/11/2016 Location: MN Status: Offline Points: 1973 |
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Do you have the washer I posted about above? Make double sure the bushing does not protrude below the bottom of the trunnion casting.
Edited by BU1 - Sep/29/2020 at 3:45pm |
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AMO #2726
#1 1968 AMX Rally Green 343 Z code 4spd since 1975 #02642 #2 1968 AMX Rally Green 290 N code 4spd since 2019 #02959 |
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db6457
AMC Apprentice Joined: Aug/02/2020 Location: illinois Status: Offline Points: 35 |
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yes I put the washer in and the bushing did protude below the bottom of the trunnion casting but it seem to have flating out once it was tighten out spring installed
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19611 |
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You don't want to torque the nut on top to the factory spec with the Prothane bushing. That's why it was recommended that you replace the nut with a nylock nut. Tighten until it starts to get stiff to turn and stop. The factory rubber bushing required more torque since it was softer.
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Frank Swygert
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db6457
AMC Apprentice Joined: Aug/02/2020 Location: illinois Status: Offline Points: 35 |
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thank you
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