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New Lower Pin play #232465
01/28/12 08:19 PM
01/28/12 08:19 PM
Joined: Nov 2011
Posts: 42
St. Louis, MO
J
JoeS Offline OP

Shade Tree Mechanic
JoeS  Offline OP

Shade Tree Mechanic
J
Joined: Nov 2011
Posts: 42
St. Louis, MO
Should my brand new lower (steering knuckle) pins have any play in them. Mine sure do. They are not as bad as the orginals, but I was expecting zero play. Is that just the way it is?
Thanks.
Joe

Re: New Lower Pin play [Re: JoeS] #232499
01/29/12 12:40 AM
01/29/12 12:40 AM
Joined: May 2002
Posts: 4,218
Goulburn Australia
tonyw Offline

ChatMaster - 4,000
tonyw  Offline

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Goulburn Australia
Joe
You say new knuckle pins, were the bushes replaced as well (that is what wears the most)? I would think no play (at least that is the way I set them) but should swivel freely.
Tony


1938 1/2 ton Hope to drive it before I retire
Re: New Lower Pin play [Re: tonyw] #232535
01/29/12 03:21 AM
01/29/12 03:21 AM
Joined: Nov 2011
Posts: 42
St. Louis, MO
J
JoeS Offline OP

Shade Tree Mechanic
JoeS  Offline OP

Shade Tree Mechanic
J
Joined: Nov 2011
Posts: 42
St. Louis, MO
Outer lower link pins.
One of these:
http://www.chevsofthe40s.com/detail/8134...2_CORVETTE.html

I've installed it into the A-Arm/steering upright and there just seems to be an excessive amount of play, however, this is my first King-Pin car, so Im not sure what to expect.

There is no adjustment to this part.

Re: New Lower Pin play [Re: JoeS] #232556
01/29/12 11:42 AM
01/29/12 11:42 AM
Joined: Jul 2008
Posts: 714
Central Kentucky
kwchevy1940 Offline
Oil Can Mechanic
kwchevy1940  Offline
Oil Can Mechanic
Joined: Jul 2008
Posts: 714
Central Kentucky
Which way is the excessive play? Side to side? Or up and down? Could be you may have worn out bushings? idea


Ken's 1940 Special Deluxe Sedan
1970 Cadillac Hearse
Re: New Lower Pin play [Re: kwchevy1940] #232582
01/29/12 05:35 PM
01/29/12 05:35 PM
Joined: Nov 2011
Posts: 42
St. Louis, MO
J
JoeS Offline OP

Shade Tree Mechanic
JoeS  Offline OP

Shade Tree Mechanic
J
Joined: Nov 2011
Posts: 42
St. Louis, MO
The a-arm/steering is off of the car in the Vise.
These are BRAND new. That is my question. Should new ones have play?

Re: New Lower Pin play [Re: JoeS] #232585
01/29/12 05:54 PM
01/29/12 05:54 PM
Joined: Nov 2001
Posts: 16,700
The Great State of TEXAS
Chipper Offline

Chipper  Offline


ChatMaster - 15,000
Joined: Nov 2001
Posts: 16,700
The Great State of TEXAS
There should not be any noticeable play between bushing and shaft. There are some "floating" bushings that have some play between housings and shafts. I don't know if this year and application is one of them.


How Sweet the roar of a Chevy four!
Re: New Lower Pin play [Re: Chipper] #232590
01/29/12 06:19 PM
01/29/12 06:19 PM
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
Chev Nut Offline

Chev Nut  Offline


ChatMaster - 25,000
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Posts: 25,159
West Allis,Wi.
The thread between the bushing and pin is not a real tight fit....there will be a very slight amount of play. I will check out a genuine set later and give a reply.


Chevgene
Re: New Lower Pin play [Re: Chev Nut] #232601
01/29/12 08:55 PM
01/29/12 08:55 PM
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
Chev Nut Offline

Chev Nut  Offline


ChatMaster - 25,000
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
A new genuine has several thousands of play. Probably designed that way so greae would flow through .
Years ago we sold 10 uppers to every lower. If they get lubed every 1000 miles they will last forever. I use a grease with moly in it for mine.


Chevgene
Re: New Lower Pin play [Re: Chev Nut] #232635
01/30/12 02:55 AM
01/30/12 02:55 AM
Joined: Nov 2001
Posts: 16,700
The Great State of TEXAS
Chipper Offline

Chipper  Offline


ChatMaster - 15,000
Joined: Nov 2001
Posts: 16,700
The Great State of TEXAS
I don't feel that a few thousandths gap between pin and bushing would be noticeable unless paying strict attention. For greased joints 2+ thousandths gap is required for proper lubrication. Oil can be ~ 0.001 and still lube properly.


How Sweet the roar of a Chevy four!
Re: New Lower Pin play [Re: Chipper] #232667
01/30/12 12:26 PM
01/30/12 12:26 PM
Joined: Nov 2011
Posts: 42
St. Louis, MO
J
JoeS Offline OP

Shade Tree Mechanic
JoeS  Offline OP

Shade Tree Mechanic
J
Joined: Nov 2011
Posts: 42
St. Louis, MO
Thank you for the replys, and I was afraid of that.
These are new, and there is much more than a few thousands play.
I purchased them from a vendor on eBay and am very dissappointed with everything that I've tried to use so far.
The bottom bushing requires a 26mm wrench. The bushing for the top pin (screws into the shock A arm) wont even start. The threads are obviously wrong.
This is VERY frustrating.

Re: New Lower Pin play [Re: Chev Nut] #232675
01/30/12 03:32 PM
01/30/12 03:32 PM
Joined: Nov 2011
Posts: 42
St. Louis, MO
J
JoeS Offline OP

Shade Tree Mechanic
JoeS  Offline OP

Shade Tree Mechanic
J
Joined: Nov 2011
Posts: 42
St. Louis, MO
Originally Posted By: Chev Nut
A new genuine has several thousands of play. Probably designed that way so greae would flow through .
Years ago we sold 10 uppers to every lower. If they get lubed every 1000 miles they will last forever. I use a grease with moly in it for mine.


So when I go to the autoparts store, and grease that has "moly" in it? Do you have a specific recommendation?
Thanks.
Joe

Re: New Lower Pin play [Re: JoeS] #232676
01/30/12 03:39 PM
01/30/12 03:39 PM
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
Chev Nut Offline

Chev Nut  Offline


ChatMaster - 25,000
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
The tube will say contains moly and it is the grease required by Ford so its easy to find. Get a major brand.


Chevgene
Upper link pin fit (was New Lower Link Pin play) [Re: JoeS] #233662
02/08/12 12:45 PM
02/08/12 12:45 PM
Joined: Nov 2011
Posts: 42
St. Louis, MO
J
JoeS Offline OP

Shade Tree Mechanic
JoeS  Offline OP

Shade Tree Mechanic
J
Joined: Nov 2011
Posts: 42
St. Louis, MO
Well I returned the kit I purchased from eBay and purchased new uppers and lowers from chevsofthe40s.

Guess what. Same problem with the uppers. The bushing wont even start to thread into the upper A arm.
(The old bushing hand screws in with no problem.)

I had a machinest look at the old and new bushings.
Old bushing: .979-OD .957-root thread diameter.
New bushing: .985-OD .964-root thread diameter.

I haven't called chevs of the 40's yet.

Does anyone have a 49-54 bushing that they can measure the OD and root thread diameter on.

I have this idea for two reasons:
This is the same issue I had with the ones from ebay.
(So maybe an entire batch got screwed up at the factory)

If I believe the pictures in the chevs of the 40's catalog, the bushings (and seals) look like they are from a 49-54 pin.

39-48 pin: (my original looks identical)
http://www.chevsofthe40s.com/detail/8131/Chevrolet_LINK_PINS_UPPER_OUTER_W_SEALS.html

49-54 pin: (my new pins have these bushing and seals)
http://www.chevsofthe40s.com/detail/8132...2_CORVETTE.html

Joe


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