| Re: [GMCnet] Installing Grease Zerks For Front Wheel Bearings [message #218428 is a reply to message #218427] |
Thu, 15 August 2013 08:39   |
powerjon
Messages: 2446
Registered: January 2004
Karma:
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Senior Member |
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Chris,
IMPHO I would suggest that you do install the grease zerks for the front bearings. You could get 80 to 100 thousand mile out of your bearings by greasing them at least once a year. I know that Dave Lenzi has over 80 K miles on the set he has in the coach and when checked them last year they looked new. He grease twice a year because of the miles he does each year. Synthetic greases may not break down as easily but the fresh grease flushes out any dirt that may have got by the seals.
JR Wright
78 Buskirk Stretch
75 Avion
Michigan
On Aug 15, 2013, at 9:25 AM, LW <tux@apex-internet.com> wrote:
>
>
> Just a general question on this discussion...
>
> I understand that the original instructions in the manual for the front bearings maintenance procedures were written before synthetic grease. With modern synthetic grease (that is not supposed to dry up and/or separate like the dino grease), is it still necessary for this procedure? My understanding is that synthetic should last a lot longer and doesn't break down as easily.
>
> The reason I'm asking is our GMC is currently in the shop and they are going to replace the front bearings. They will be packing the new bearings with Amsoil synthetic grease. We've talked to them about adding the zerks, but with the long life and different characteristics of synthetic grease I am wondering if the zerks are really necessary.
>
> Just wanted to get some feedback. Thanks for the great information!
>
> --
> Chris
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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