| Bogie pin top hats [message #98691] |
Sun, 05 September 2010 21:03  |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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Should the top hats on the bogie pins extend to the outside of the bogie?
I removed the large nuts on the bogie pins and the top hats appear to stop inside the bogie casting. There appears to be no adjustment for end play for the control arms.
Thanks
Dennis
Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] Bogie pin top hats [message #98730 is a reply to message #98726] |
Mon, 06 September 2010 10:07  |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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Terry
Yes, very helpful.
Closer look I see what I thought was a machined boss on the bogie IS
the end of the top hat. May take a while to get it to move -- have
them soaking.
Thank you!
Dennis
Dennis Sexton
73 PD 230
Sent from my iPhone
On Sep 6, 2010, at 9:08 AM, Terry Skinner <gmcnut@gmail.com> wrote:
> Yes. I have never seen a bushing worn so much that the "top hat"
> didn't stand a little proud of the casting. When ever I adjust the end
> play I take the wheel and shock off so that the arm is free and I can
> shake it all around, lube it, and then make the end play adjustment as
> per the manual. I know, a lot of extra work. But it sure eliminates
> come-backs. The thickness of the two brass washers will determine how
> much the "top hat" sticks out. Wear in the bushings will cause the
> wobble. Clean everything before making the adjustments.
> HTH.............Terry
>
> On Sun, Sep 5, 2010 at 7:03 PM, Dennis Sexton
> <dennisfsexton@aol.com> wrote:
>>
>>
>> Should the top hats on the bogie pins extend to the outside of the
>> bogie?
>> I removed the large nuts on the bogie pins and the top hats appear
>> to stop inside the bogie casting. There appears to be no adjustment
>> for end play for the control arms.
>>
>> Thanks
>> Dennis
>> --
>> Dennis S
>> 73 Painted Desert 230
>> Germantown, TN
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Terry Skinner
> 253-686-2624
> Roy. Washington
> '76 GMC
> _______________________________________________
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Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] Bogie pin top hats [message #98735 is a reply to message #98730] |
Mon, 06 September 2010 10:50 |
jim kanomata
Messages: 257
Registered: March 2007
Location: fremont,ca
Karma: 12
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Senior Member |
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Dennis,
Did you check the pins for hardness?
There are still lot of soft pins out there that will not last long.
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Bogie pin top hats [message #98746 is a reply to message #98735] |
Mon, 06 September 2010 12:30 |
Dennis S
Messages: 3046
Registered: November 2005
Karma: 2
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Senior Member |
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| jim kanomata wrote on Mon, 06 September 2010 10:50 |
Dennis,
Did you check the pins for hardness?
There are still lot of soft pins out there that will not last long.
|
Jim,
Not new pins, just some preventive maintenace; I am cleaning and greasing the bogies and trying to assess the amount of play in the pins. Reading the maintenance manual it gives a procedure for adjusting the end play on the top hat. These top hats are likely frozen in place by corrosion so I have them soaking in hopes of getting them to move.
The GM "allowable" play in the control arm is 1/8 inch measured at the spindle (as I read in the archives and on Gene's site) so I am trying to see where mine fall.
Terry's guidance on cleaning everything includes pulling the shocks -- I have new ones on hand, so that will now be part of the project.
Just thinking/suggesting that adjusting the top hats should be considered by anyone installing a new four bag system -- because you have access.
It doesn't seem like too many owners undertake the top hat adjustment with any frequency -- I saw in an album Arch posted that it took a 16 ton press to remove the frozen top hats when he did new pins/bushings.
Thanks for you input.
Dennis
Dennis S
73 Painted Desert 230
Memphis TN Metro
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| Re: [GMCnet] Bogie pin top hats [message #98805 is a reply to message #98746] |
Mon, 06 September 2010 23:01 |
Terry Skinner
Messages: 379
Registered: January 2004
Karma: 0
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Senior Member |
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Thats why I have a 20 ton press.<VBG>.............Terry
On Mon, Sep 6, 2010 at 10:30 AM, Dennis Sexton <dennisfsexton@aol.com> wrote:
>
>
> jim kanomata wrote on Mon, 06 September 2010 10:50
>> Dennis,
>> Did you check the pins for hardness?
>> There are still lot of soft pins out there that will not last long.
>
>
> Jim,
> Not new pins, just some preventive maintenace; I am cleaning and greasing the bogies and trying to assess the amount of play in the pins. Reading the maintenance manual it gives a procedure for adjusting the end play on the top hat. These top hats are likely frozen in place by corrosion so I have them soaking in hopes of getting them to move.
> The GM "allowable" play in the control arm is 1/8 inch measured at the spindle (as I read in the archives and on Gene's site) so I am trying to see where mine fall.
> Terry's guidance on cleaning everything includes pulling the shocks -- I have new ones on hand, so that will now be part of the project.
> Just thinking/suggesting that adjusting the top hats should be considered by anyone installing a new four bag system -- because you have access.
> It doesn't seem like too many owners undertake the top hat adjustment with any frequency -- I saw in an album Arch posted that it took a 16 ton press to remove the frozen top hats when he did new pins/bushings.
> Thanks for you input.
>
> Dennis
>
> --
> Dennis S
> 73 Painted Desert 230
> Germantown, TN
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Terry Skinner
253-686-2624
Roy. Washington
'76 GMC
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