Home » Public Forums » GMCnet » Got the bearings in, one has a rumble...
| Got the bearings in, one has a rumble... [message #334944] |
Wed, 11 July 2018 12:51  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
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So I got the bearings installed. Bought a grease packer as the manual method wasn't working for me.
Mid passenger side has a rumble. Two are smoe and one has a slight rumble. They are finger tight but not torgued and back to finger tight.
Any ideas about the rumble? New Timken bearings.
Thanks
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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| Re: Got the bearings in, one has a rumble... [message #334945 is a reply to message #334944] |
Wed, 11 July 2018 13:02  |
77Royale
Messages: 461
Registered: June 2014
Location: Mid Michigan
Karma: 6
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Were these new bearings or ones you took out to repack? If new bearings are in, you should use new races as well.
Is it possible the inners and outers got mixed up between hubs? Assuming if they are the old bearings they all passed a visual and rotation feel inspection for scoring, pitting, binding, burn marks once ALL the old grease was cleaned out. Same for the races.
Is it possible there is some dirt/grime in that offending hub.
I dont know that not torquing them down would cause a noise, but dont drive anywhere until they are torqued and backed off correctly per the book.
Lastly, is it possible there is something stuck to one of the brake shoes, or inside of the drum. I had this on one of mine where a small piece of rust/crap was in the right spot to cause a noise when I was spinning the assembly.
77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy.
Mid Michigan
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| Re: Got the bearings in, one has a rumble... [message #334946 is a reply to message #334944] |
Wed, 11 July 2018 13:05 |
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GMC2000
Messages: 193
Registered: March 2018
Location: Georgia
Karma: -3
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bummer. only way to tell that I know of is to pull it apart and re-clean (I use CRC Braklean, red can and compressed air nozzle) then put it in the race on a bench all dry spin to check for 'rumble', knock, etc. it should spin smooth. if so then maybe even assemble it on the spindle dry and hand tight to re-check to be sure.
if all is well, repack and try again.
I guess if your lucky you will find a piece of grit thats causing it.
Edit to add: BTW, I use the braklean after washing it in the partscleaner/mineral spirits bath.
[Updated on: Wed, 11 July 2018 13:08] Report message to a moderator |
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| Re: Got the bearings in, one has a rumble... [message #334954 is a reply to message #334944] |
Wed, 11 July 2018 14:00 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I'd also turn it and feel while I was turning it. Any feeling other than smooth or dragging brakes is a reason to take it apart and find out what. They should vbe silent before you readjust the brakes.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Got the bearings in, one has a rumble... [message #334971 is a reply to message #334969] |
Wed, 11 July 2018 22:36 |
Bullitthead
Messages: 1411
Registered: November 2013
Karma: 5
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If it rumbles with NO load, I would not ride it unless I had extra bearings and races at no cost. Take it back apart and thoroughly clean it in the parts washer and then check it in your hand by turning and loading the cage with the other hand. Rotate it several revolutions. Check the race for pits with specs or a magnifying glass and your finger for burrs. If you got one little piece of schmutz in there and it got ground up it will be the death of that bearing if you ride it.
Terry Kelpien
ASE Master Technician
73 Glacier 260
Smithfield, Va.
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| Re: Got the bearings in, one has a rumble... [message #334977 is a reply to message #334944] |
Thu, 12 July 2018 07:27 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I side with Terry - if the calipers aren't on and there's nothing connected to the hub it should spin silently and smoothly. If it doesn't, find out why. The option is the same as overtightening and leaving it that way. The wheel will depart the coach. Ask me how I know this... or ask Colie. It's no fun at all.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Got the bearings in, one has a rumble... [message #334978 is a reply to message #334944] |
Thu, 12 July 2018 07:27 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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And lemme point out, Colie's died from component failure, mine died from stupidity.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Got the bearings in, one has a rumble... [message #335019 is a reply to message #335017] |
Thu, 12 July 2018 20:34 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Bruce,
I copied this from MM X-7525, Section 5 - Brakes - Page 5-40
BRAKE DRUM INSTALLATION
1. Install hub and drum assembly (figure 10).
2. Install flat washer and castellated nut on hub while rotating hub and drum assembly.
3. Tighten castellated nut to 25-30 lbs. ft. torque to position bearings. (Be sure drum is rotating while tightening nut).
4. Back off nut 1/2 turn.
5. Retighten nut finger tight, secure if possible with cotter pin.
6. If unable to secure at finger tight, back off nut to first securing position.
7. Check end play between hub and spindle it should be .001 to .005 inch.
8. Replace inner and outer dust caps.
I have four torque wrenches (1/4 drive, 3/8 drive, 1/2 drive & 3/4 drive) here in the USA all from Harbor Freight and so far so
good. I always return them to 0 before I put them away.
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bruce Hislop
Sent: Thursday, July 12, 2018 8:09 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Got the bearings in, one has a rumble...
Lowest my torque wrench goes was 50ft-lbs, so I asked a neighbour who is a mechanic with his own fleet garage to preset them. Then
the rumble was gone on the two with the rumble and slight rumble. The two I thought were quiet before now I thought had a rumble.
Paula said I was hearing things, so I buttoned it up and took it for a run. Hubs stayed cool so fingers crossed.
All seems good :)
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Got the bearings in, one has a rumble... [message #335020 is a reply to message #335019] |
Thu, 12 July 2018 20:42 |
Rob
Messages: 651
Registered: November 2013
Location: Victoria, BC
Karma: 3
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What size is that axle nut?
The last time I followed this procedure - I didn’t have a socket that fit, so I had to use a wrench...
Rob
Victoria, BC
76 Royale - Rear Twins/Dry Bath
> On Jul 12, 2018, at 6:34 PM, Rob Mueller wrote:
>
> Bruce,
>
> I copied this from MM X-7525, Section 5 - Brakes - Page 5-40
>
> BRAKE DRUM INSTALLATION
> 1. Install hub and drum assembly (figure 10).
> 2. Install flat washer and castellated nut on hub while rotating hub and drum assembly.
> 3. Tighten castellated nut to 25-30 lbs. ft. torque to position bearings. (Be sure drum is rotating while tightening nut).
> 4. Back off nut 1/2 turn.
> 5. Retighten nut finger tight, secure if possible with cotter pin.
> 6. If unable to secure at finger tight, back off nut to first securing position.
> 7. Check end play between hub and spindle it should be .001 to .005 inch.
> 8. Replace inner and outer dust caps.
>
> I have four torque wrenches (1/4 drive, 3/8 drive, 1/2 drive & 3/4 drive) here in the USA all from Harbor Freight and so far so
> good. I always return them to 0 before I put them away.
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
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Rob -
Victoria, BC -
76 Royale - Rear Twins/Dry Bath
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| Re: [GMCnet] Got the bearings in, one has a rumble... [message #335021 is a reply to message #335020] |
Thu, 12 July 2018 20:45 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Rob, I think he is working on the front. Not the back.
Jim Hupy
On Thu, Jul 12, 2018, 6:43 PM Rob wrote:
> What size is that axle nut?
>
> The last time I followed this procedure - I didn’t have a socket that fit,
> so I had to use a wrench...
>
> Rob
> Victoria, BC
> 76 Royale - Rear Twins/Dry Bath
>
>> On Jul 12, 2018, at 6:34 PM, Rob Mueller
> wrote:
>>
>> Bruce,
>>
>> I copied this from MM X-7525, Section 5 - Brakes - Page 5-40
>>
>> BRAKE DRUM INSTALLATION
>> 1. Install hub and drum assembly (figure 10).
>> 2. Install flat washer and castellated nut on hub while rotating hub and
> drum assembly.
>> 3. Tighten castellated nut to 25-30 lbs. ft. torque to position
> bearings. (Be sure drum is rotating while tightening nut).
>> 4. Back off nut 1/2 turn.
>> 5. Retighten nut finger tight, secure if possible with cotter pin.
>> 6. If unable to secure at finger tight, back off nut to first securing
> position.
>> 7. Check end play between hub and spindle it should be .001 to .005 inch.
>> 8. Replace inner and outer dust caps.
>>
>> I have four torque wrenches (1/4 drive, 3/8 drive, 1/2 drive & 3/4
> drive) here in the USA all from Harbor Freight and so far so
>> good. I always return them to 0 before I put them away.
>>
>> Regards,
>> Rob M.
>> The Pedantic Mechanic
>> Sydney, Australia
>> AUS '75 Avion - The Blue Streak TZE365V100428
>> USA '75 Avion - Double Trouble TZE365V100426
>> USA '77 Kingsley - TZE 267V100808
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: [GMCnet] Got the bearings in, one has a rumble... [message #335022 is a reply to message #335019] |
Thu, 12 July 2018 20:44 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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You should never spin a dry bearing, always add a drop or two of oil on the
rollers.
On Thu, Jul 12, 2018 at 7:34 PM, Rob Mueller
wrote:
> Bruce,
>
> I copied this from MM X-7525, Section 5 - Brakes - Page 5-40
>
> BRAKE DRUM INSTALLATION
> 1. Install hub and drum assembly (figure 10).
> 2. Install flat washer and castellated nut on hub while rotating hub and
> drum assembly.
> 3. Tighten castellated nut to 25-30 lbs. ft. torque to position bearings.
> (Be sure drum is rotating while tightening nut).
> 4. Back off nut 1/2 turn.
> 5. Retighten nut finger tight, secure if possible with cotter pin.
> 6. If unable to secure at finger tight, back off nut to first securing
> position.
> 7. Check end play between hub and spindle it should be .001 to .005 inch.
> 8. Replace inner and outer dust caps.
>
> I have four torque wrenches (1/4 drive, 3/8 drive, 1/2 drive & 3/4 drive)
> here in the USA all from Harbor Freight and so far so
> good. I always return them to 0 before I put them away.
>
> Regards,
> Rob M.
> The Pedantic Mechanic
> Sydney, Australia
> AUS '75 Avion - The Blue Streak TZE365V100428
> USA '75 Avion - Double Trouble TZE365V100426
> USA '77 Kingsley - TZE 267V100808
>
>
>
> -----Original Message-----
> From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bruce
> Hislop
> Sent: Thursday, July 12, 2018 8:09 PM
> To: gmclist@list.gmcnet.org
> Subject: Re: [GMCnet] Got the bearings in, one has a rumble...
>
> Lowest my torque wrench goes was 50ft-lbs, so I asked a neighbour who is a
> mechanic with his own fleet garage to preset them. Then
> the rumble was gone on the two with the rumble and slight rumble. The two
> I thought were quiet before now I thought had a rumble.
>
> Paula said I was hearing things, so I buttoned it up and took it for a
> run. Hubs stayed cool so fingers crossed.
>
> All seems good :)
>
> Bruce Hislop
> ON Canada
> 77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.1 ton front end
> http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
> My Staff says I never listen to them, or something like that
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Got the bearings in, one has a rumble... [message #335024 is a reply to message #335022] |
Thu, 12 July 2018 23:21 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Bruce,
This is after you install the drums; hopefully you have used something a bit thicker than oil on the rollers! :-)
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bruce Hart
Sent: Thursday, July 12, 2018 8:45 PM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Got the bearings in, one has a rumble...
You should never spin a dry bearing, always add a drop or two of oil on the rollers.
Bruce Hart
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: Got the bearings in, one has a rumble... [message #335029 is a reply to message #334944] |
Fri, 13 July 2018 07:35 |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma: 3
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Senior Member |
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The grease I used was Valvoline Moly Special "recommended for wheel bearings with disc brakes". I used a grease packing tool to lube the bearings and lots of grease loaded onto them and the race.
I have Dave Lenzi's grease seal installing tool.
Yes we did the pre-load.
h
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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