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| [GMCnet] wheel lost our experience [message #60588] |
Sun, 18 October 2009 21:29  |
Curtisunlimited
Messages: 57
Registered: April 2004
Karma: 0
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When a rear bearing fails, it will mushroom the washer over the axle nut
and the rear wheel with drum will go rolling off. If you step on the brakes,
as we all most likely do, the inner brake guts are apt to leave as the drum
is no longer there to retain the parts as the shoes are pushed out.
We lost our left middle wheel on our way back from the GMCMI rally in
Montgomery, TX a few years back. In our case it was not do to lack of
maintenance as we meticulously maintain our bearings to try and prevent this from
occurring. After getting/finding parts in Van Horn, TX (a place forever
burned in our memories) and having Jim K next day us a few parts, and returning
home, we took the damaged bearing parts to our local bearing house (part
of a national bearing chain) for diagnostics. It was their opinion that the
cause of our sudden failure - no tell tale rumblings, or excessive heat at
the prior fuel stop - was aging out of the bearings. They happened to be
New Departure bearings, which haven't been produced in many, many years. So
even though they looked good just 500 miles before they failed, they were a
disaster just waiting to happen!
Since that experience, we warn everyone to check their rear bearings and if
they are New Departure brand, CHANGE THEM, even if they appear in all ways
to be fine. Losing a wheel because one is too frugal to change out the
bearings is false economy. We also recommend carrying a spare axle nut and
washer, both are small, inexpensive parts to carry and are hard to find on the
road. Same applies to some of the inner brake hardware if one has changed
to 3" wide rear brake shoes.
Check your rear bearing manufacturer,
Bert and Fay Curtis
' 76 Glenbrook
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| Re: [GMCnet] wheel lost our experience [message #60601 is a reply to message #60588] |
Sun, 18 October 2009 22:51  |
GMCWiperMan
Messages: 1248
Registered: December 2007
Karma: 1
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Bert,
How the heck can a bearing "age out"? I can understand the cosmoline, or
whatever preservative they use, drying out and being hard to clean before
greasing. Or it being ineffective allowing the bearing to rust. But to
just deteriorate from AGE? That doesn't compute for me.
Maybe 'cause I've got a lathe with New Departure bearings in it dated 1942.
:-)
Ken H.
-----Original Message-----
When a rear bearing fails, it will mushroom the washer over the axle nut and
the rear wheel with drum will go rolling off. If you step on the brakes, as
we all most likely do, the inner brake guts are apt to leave as the drum is
no longer there to retain the parts as the shoes are pushed out.
We lost our left middle wheel on our way back from the GMCMI rally in
Montgomery, TX a few years back. In our case it was not do to lack of
maintenance as we meticulously maintain our bearings to try and prevent this
from occurring. After getting/finding parts in Van Horn, TX (a place
forever burned in our memories) and having Jim K next day us a few parts,
and returning home, we took the damaged bearing parts to our local bearing
house (part of a national bearing chain) for diagnostics. It was their
opinion that the cause of our sudden failure - no tell tale rumblings, or
excessive heat at the prior fuel stop - was aging out of the bearings. They
happened to be New Departure bearings, which haven't been produced in many,
many years. So even though they looked good just 500 miles before they
failed, they were a disaster just waiting to happen!
Since that experience, we warn everyone to check their rear bearings and if
they are New Departure brand, CHANGE THEM, even if they appear in all ways
to be fine. Losing a wheel because one is too frugal to change out the
bearings is false economy. We also recommend carrying a spare axle nut and
washer, both are small, inexpensive parts to carry and are hard to find on
the road. Same applies to some of the inner brake hardware if one has
changed to 3" wide rear brake shoes.
Check your rear bearing manufacturer,
Bert and Fay Curtis
' 76 Glenbrook
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| Re: [GMCnet] wheel lost our experience [message #60602 is a reply to message #60588] |
Sun, 18 October 2009 22:56 |
GMCWiperMan
Messages: 1248
Registered: December 2007
Karma: 1
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Senior Member |
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Bert,
How the heck can a bearing "age out"? I can understand the cosmoline, or
whatever preservative they use, drying out and being hard to clean before
greasing. Or it being ineffective allowing the bearing to rust. But to
just deteriorate from AGE? That doesn't compute for me.
Maybe 'cause I've got a lathe with New Departure bearings in it dated 1942.
:-)
Ken H.
-----Original Message-----
When a rear bearing fails, it will mushroom the washer over the axle nut and
the rear wheel with drum will go rolling off. If you step on the brakes, as
we all most likely do, the inner brake guts are apt to leave as the drum is
no longer there to retain the parts as the shoes are pushed out.
We lost our left middle wheel on our way back from the GMCMI rally in
Montgomery, TX a few years back. In our case it was not do to lack of
maintenance as we meticulously maintain our bearings to try and prevent this
from occurring. After getting/finding parts in Van Horn, TX (a place
forever burned in our memories) and having Jim K next day us a few parts,
and returning home, we took the damaged bearing parts to our local bearing
house (part of a national bearing chain) for diagnostics. It was their
opinion that the cause of our sudden failure - no tell tale rumblings, or
excessive heat at the prior fuel stop - was aging out of the bearings. They
happened to be New Departure bearings, which haven't been produced in many,
many years. So even though they looked good just 500 miles before they
failed, they were a disaster just waiting to happen!
Since that experience, we warn everyone to check their rear bearings and if
they are New Departure brand, CHANGE THEM, even if they appear in all ways
to be fine. Losing a wheel because one is too frugal to change out the
bearings is false economy. We also recommend carrying a spare axle nut and
washer, both are small, inexpensive parts to carry and are hard to find on
the road. Same applies to some of the inner brake hardware if one has
changed to 3" wide rear brake shoes.
Check your rear bearing manufacturer,
Bert and Fay Curtis
' 76 Glenbrook
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| Re: [GMCnet] wheel lost our experience [message #60618 is a reply to message #60602] |
Mon, 19 October 2009 01:29 |
Chuck Garton
Messages: 54
Registered: June 2006
Karma: 0
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One of my reasons for putting disc brakes on all 4 rear wheels is to
keep the wheel on the coach in the event of this type of failure. The
caliper will keep it together.
Chuck Garton
77 Kingsley 455
Ridgecrest, CA
On Sun, Oct 18, 2009 at 8:56 PM, Ken Henderson <ken0henderson@gmail.com> wrote:
> Bert,
>
> How the heck can a bearing "age out"? I can understand the cosmoline, or
> whatever preservative they use, drying out and being hard to clean before
> greasing. Or it being ineffective allowing the bearing to rust. But to
> just deteriorate from AGE? That doesn't compute for me.
>
> Maybe 'cause I've got a lathe with New Departure bearings in it dated 1942.
> :-)
>
> Ken H.
>
>
> -----Original Message-----
> When a rear bearing fails, it will mushroom the washer over the axle nut and
> the rear wheel with drum will go rolling off. If you step on the brakes, as
> we all most likely do, the inner brake guts are apt to leave as the drum is
> no longer there to retain the parts as the shoes are pushed out.
> We lost our left middle wheel on our way back from the GMCMI rally in
> Montgomery, TX a few years back. In our case it was not do to lack of
> maintenance as we meticulously maintain our bearings to try and prevent this
> from occurring. After getting/finding parts in Van Horn, TX (a place
> forever burned in our memories) and having Jim K next day us a few parts,
> and returning home, we took the damaged bearing parts to our local bearing
> house (part of a national bearing chain) for diagnostics. It was their
> opinion that the cause of our sudden failure - no tell tale rumblings, or
> excessive heat at the prior fuel stop - was aging out of the bearings. They
> happened to be New Departure bearings, which haven't been produced in many,
> many years. So even though they looked good just 500 miles before they
> failed, they were a disaster just waiting to happen!
> Since that experience, we warn everyone to check their rear bearings and if
> they are New Departure brand, CHANGE THEM, even if they appear in all ways
> to be fine. Losing a wheel because one is too frugal to change out the
> bearings is false economy. We also recommend carrying a spare axle nut and
> washer, both are small, inexpensive parts to carry and are hard to find on
> the road. Same applies to some of the inner brake hardware if one has
> changed to 3" wide rear brake shoes.
>
> Check your rear bearing manufacturer,
>
> Bert and Fay Curtis
> ' 76 Glenbrook
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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| Re: [GMCnet] wheel lost our experience [message #60664 is a reply to message #60588] |
Mon, 19 October 2009 10:13 |
Tin Gerbil
Messages: 236
Registered: October 2006
Location: Vancouver Island, B.C.
Karma: 0
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Senior Member |
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Food, people and their thinking may "age out." Bearings don't. I have NOS bearings that are 30+ years old in by parts collection. I put them on things as I need them. I may start asking them how old they are and how they feel today before installation. If I get the wrong answer, I consider throwing them away and I'll let you know.
Thanks for the tip on the nut and washer. I have put spares in the coach.
Gordon
Gordon
'74 Canyon Lands "Tin Gerbil"
Vancouver Island, B.C.
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| Re: [GMCnet] wheel lost our experience [message #60758 is a reply to message #60753] |
Mon, 19 October 2009 22:55 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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| Harry wrote on Mon, 19 October 2009 22:39 |
Did you find the wheel?
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He found the wheel, it's shown on the phote site.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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| Re: [GMCnet] wheel lost our experience [message #60869 is a reply to message #60588] |
Tue, 20 October 2009 20:35 |
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Bert Curtis implied that, perhaps, I didn't use the best available bearings and, perhaps, that's true. My records only show that I bought them from Cinnabar in April '02 and they cost $252.
When Tom Hampton gets a chance to work on the Buckeye Cruiser we'll be looking closely at the other 3 sets.
Bill Brown - '77 Buckeye Cruiser
Coshocton OH
carguybill@sbcglobal.net
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