TheAMCForum.com Homepage
Forum Home Forum Home > The Garage > Transmission & Drivetrain
  New Posts New Posts RSS Feed - Rear wheel wobble...
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Click for TheAMCForum Rules / Click for PDF version of Forum Rules
Your donations help keep this valuable resource free and growing. Thank you.

Rear wheel wobble...

 Post Reply Post Reply Page  <123
Author
Message
billd View Drop Down
Moderator Group
Moderator Group
Avatar
Forum Administrator

Joined: Jun/27/2007
Location: Iowa
Status: Online
Points: 28803
Post Options Post Options   Thanks (0) Thanks(0)   Quote billd Quote  Post ReplyReply Direct Link To This Post Posted: May/30/2019 at 10:12pm
Check out the TSM - my hard-cover 1974 under "hubs and axles" states "replace brake drum and retaining screws..........." - is that not AMC saying "put them back"?
They also sell tools for removing and re-installing the clips used by GM - I have one of those tools. Bought it when I was in college and they taught us to put those things back.......
If it was "assembly only" - then why three? That's an expense AMC could ill-afford - and only one 1/4" bolt is needed to hold a drum on when putting it in the car at the factory - or shipping them between plants.  Why three if it's assembly only?
the TSM says "replace........", we were taught in college - during the semester on brakes, to replace drum retainers (bolts, nuts, otherwise) but guess work prevails still.
Whatever. 
Back to Top
990V8 View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Oct/07/2016
Location: Gloucestershire
Status: Offline
Points: 584
Post Options Post Options   Thanks (0) Thanks(0)   Quote 990V8 Quote  Post ReplyReply Direct Link To This Post Posted: Jun/12/2019 at 1:35pm
Two reasons I can think of to keep them, says he belatedly.
 
First, it's hard to check for brake rub with the wheel off, if there's nothing holding the drum.
 
Secondly, back in the day, the driver has to deal with a puncture, take off the wheel, they might not be aware to check that the drum is properly seated when they fit the spare, perhaps in the dark.
 
Always had retainers in my cars, but they've always been countersinks.
 
Ivor
63 Canadian Ambo 990 V8 327
Lightweight V8 SIII
Shopping Trolley
Back to Top
tomj View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Jan/27/2010
Location: los angeles
Status: Offline
Points: 2977
Post Options Post Options   Thanks (0) Thanks(0)   Quote tomj Quote  Post ReplyReply Direct Link To This Post Posted: Jun/13/2019 at 12:24am
i admit i leave the little small-head bolts out. (factory wheels have clearance for them, it's only aftermarket wheels that don't) but it is true, checking brake shoe scuff requires it affixed to the hub.

in 1961 my American up on a lift/side of the road flat swap would be one set of circumstances. today, i simply screw on two lug nuts, upside down for that. the metal is the same but circumstances, repair and engineering practice, and car culture have changed.

billd's point is interesting: one little bolt would work; two certainly redundant. why three?! the answer is probably in the culture -- of industry, of users, and everything else. not all engineering practice was sensible -- at least us AMCers aren't burdened with the embarassment/superstition of left-hand-thread lugnuts on the left side of the car.


/does 'replace' mean put them back?/ look! we're already doing archaeology! on stuff we think we know about! lol! many times i'm puzzled by those seemingly obvious statements in the TSM...


Edited by tomj - Jun/13/2019 at 12:27am
1961 roadster american
Back to Top
990V8 View Drop Down
AMC Addicted
AMC Addicted
Avatar

Joined: Oct/07/2016
Location: Gloucestershire
Status: Offline
Points: 584
Post Options Post Options   Thanks (0) Thanks(0)   Quote 990V8 Quote  Post ReplyReply Direct Link To This Post Posted: Jun/13/2019 at 3:24am
Left hand thread.
Ha! I remember that.
 
With knock-off wheels there was good reason for it, any slight slack in the splines and the caps will start to loosen. But with four or five nuts, it does seem rather pointless.
 
My 34 Lanchester had that feature. The beautifully made closed-end nuts - they were visible on the wheels - were marked L and R on the heads.
So did my Silver Shadow. There. the nuts were not marked, and a past owner had muddled the rear hubs so that the left nuts were on the right of the car and vice versa. That was quite troublesome the first time I took the wheels off. Never came loose though.
 
My Landrover has one retainer on each drum. I think the Lanchester had two, but I owned that car a long time ago.
 
Ivor
63 Canadian Ambo 990 V8 327
Lightweight V8 SIII
Shopping Trolley
Back to Top
vinny View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum


Joined: Jan/05/2012
Location: Calgary
Status: Offline
Points: 2443
Post Options Post Options   Thanks (0) Thanks(0)   Quote vinny Quote  Post ReplyReply Direct Link To This Post Posted: Jun/13/2019 at 9:30pm
I can say that after spinning a hub on an AMC 15 with a powerful 196 engine in front that they don't start to spin, they do it instantaneously. 

We rented a Nissan out of SFA and it vibrated a lot. I got my wife to drive in a parking lot while I observed the different wheels from various positions in the car. The right rear had a really good wobble. 

Back to Top
6PakBee View Drop Down
Supporter of TheAMCForum
Supporter of TheAMCForum
Avatar
Charter Member

Joined: Jul/01/2007
Location: North Dakota
Status: Offline
Points: 3614
Post Options Post Options   Thanks (0) Thanks(0)   Quote 6PakBee Quote  Post ReplyReply Direct Link To This Post Posted: Jun/14/2019 at 9:58am
Just a thought, IF the retaining bolts are desirable AND they are interfering with the wheel, why couldn't you machine a shallow relief in the wheels to clear the bolts and everyone is happy?
Roger Gazur
1969 'B' Scheme SC/Rambler
1970 RWB 4-spd Machine
1970 Sonic Silver auto AMX

All project cars.

Back to Top
 Post Reply Post Reply Page  <123
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.047 seconds.
All content of this site Copyright © 2018 TheAMCForum unless otherwise noted, all rights reserved.
PROBLEMS LOGGING IN or REGISTERING:
If you have problems logging in or registering, then please contact a Moderator or