Recent Topics
EcoGard X1A Cut Open 6000Km glue failure
by Run
05/20/18 10:55 PM
SuperTech ST6607 Cut Open 9200Km
by Run
05/20/18 10:43 PM
Fram TG3614 Cut Open 9100KM
by Run
05/20/18 10:37 PM
QSUD $3.99 at Menards, $1.99 after mfgr rebate
by wallyuwl
05/20/18 10:18 PM
Using a FL-500S in place of a FL-820S?
by jongies3
05/20/18 10:17 PM
Can the Latest Oil Spec REALLY...
by pscholte
05/20/18 09:47 PM
WW2 In the air, 80 pictures
by Jimmy9190
05/20/18 08:12 PM
New Kohler 7000 Series 1st OC
by StillLearning
05/20/18 07:59 PM
The Jetta will be making a trip to the dealer...
by gregk24
05/20/18 07:29 PM
2018 Audi A6 rental
by gregk24
05/20/18 07:21 PM
PCMO diesel category missing
by NH73
05/20/18 07:13 PM
15400-PL2-505 cut open
by robertcope
05/20/18 07:03 PM
Story on Fish-kill
by sleddriver
05/20/18 06:57 PM
TrueDelta (partially) shutting down?
by Quattro Pete
05/20/18 06:35 PM
Recommendation for new Volvo
by Ddubya
05/20/18 06:13 PM
MicroGard MGL3614 cut @ ~200 miles
by MrQuackers
05/20/18 05:09 PM
2018 Nissan frontier 4.0 DI. Oil & filter
by Gawardawg
05/20/18 04:40 PM
2013 Honda accord 2.4 DI let's talk.
by Gawardawg
05/20/18 04:18 PM
Amazon Tries Really Hard
by George7941
05/20/18 03:58 PM
tire inflator 12 v or 120v or BOTH??
by edwardh1
05/20/18 03:28 PM
Newest Members
Amenhotep, JimmyTubbins, 21G, 77Ford, Largo
65050 Registered Users
Who's Online
32 registered (BrocLuno, dishdude, Bandito440, bdcardinal, CleverUserName, 5 invisible), 1145 Guests and 40 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65050 Members
67 Forums
283938 Topics
4738583 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4755466 - 05/12/18 11:08 PM Re-packing wheel bearings by age?
JHZR2 Offline



Registered: 12/14/02
Posts: 41650
Loc: New Jersey
My 81 240D will be coming back out for family weekend use (beach trips) as soon as the rains pass.

It is all original. Original brakes (not hoses), and the car is set up so rotor replacement requires removal of the axle nut and re packing the bearings.

So the grease in there is original too...

It's a fairly closed environment, I guess. Not sure how badly the grease could oxidize over time without any real air exchange.

But should I consider re packing st least the front wheel bearings? How much is time a factor here?

Thanks!

Top
#4755488 - 05/12/18 11:56 PM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Reddy45 Offline


Registered: 08/15/08
Posts: 2862
Loc: USA
Original grease pack on a 1981 vehicle? Yeah I'd put in some fresh grease.

Top
#4755497 - 05/13/18 12:41 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
maxdustington Offline


Registered: 01/21/17
Posts: 392
Loc: Toronna
Keep it all original, baby.
_________________________
03 Jetta AWP/09A 200k kms
TGMO 0W20 "Legend" & Hella Magnet Filter

Top
#4755508 - 05/13/18 01:32 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Nick1994 Offline


Registered: 02/19/13
Posts: 9979
Loc: Phoenix, AZ
Definitely repack them. Wear good disposable rubber gloves to repack the bearings, or get a bearing packer, either way wear gloves, it's messy. Watch a video on how to do it and get new seals, it's an easy job. Once you do one side, the other side will be twice as fast. Maybe 1-2 hours to do both sides?

Also learn how to tighten the axle but. Usually you don't have to tighten them down much, just a little snug until the wheel has some drag, then loosen and put in the cotter pin.
_________________________
2015 Hyundai Sonata 2.4L 77k PU 5w30 & OEM
2000 Toyota Camry 2.2L 228k M1 AFE 0w30 & Wix
1996 Jeep Cherokee 4.0L 145k M1 HM 10w40 & Fram Ultra

Top
#4755511 - 05/13/18 01:39 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Kibitoshin Offline


Registered: 04/19/16
Posts: 671
Loc: Kaiōshinkai
Seeing unitized hubs fail because of no way to service or lube them I wish for the old-school hub and spindle design.

Definitely repack them and change out the seals too.
_________________________
Shin Gekiretsu Shin'ou'hou
01 Toyota Tundra 2WD V8 4.7L - 170k mi
02 Chevy Silverado C1500 V8 5.3L 154k mi

Top
#4755575 - 05/13/18 05:54 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Trav Offline


Registered: 11/20/06
Posts: 18536
Loc: MA, Mittelfranken.de
About an hour each if all goes well. While you can adjust the hub nut by feel and it works its a little Mickey Mouse. hide MB has a spec for that you check with a dial indicator. It was set that way almost 40 years ago so I guess it works.

If time permits pull it apart and check everything out like caliper seals and splash shields and take care of anything not up to snuff. I would clean and repack with new seals at this age. USE MB green 2989005110 or a 265.1 approved grease, the yellow from back then has long been discontinued AFAIK.
Before anyone chimes in with just use valvoline or this or that one, MB has a spec and a short approved list, there maybe something to it or maybe not but its always safe to use approved products.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4755620 - 05/13/18 07:45 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
barkingspider Offline


Registered: 12/22/13
Posts: 2010
Loc: socal
Yes, repack w new grease
_________________________
06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)

Top
#4755662 - 05/13/18 08:26 AM Re: Re-packing wheel bearings by age? [Re: Nick1994]
Linctex Offline


Registered: 12/31/16
Posts: 5950
Loc: Waco, TX
Originally Posted By: Nick1994

Also learn how to tighten the axle but. Usually you don't have to tighten them down much, just a little snug until the wheel has some drag, then loosen and put in the cotter pin.


That would end up being a tiny bit loose.
You should see how we torque roller wheel bearings on large aircraft where the tire/wheel assembly is several hundred pounds. You would never believe they would be torqued so tight!

Too loose destroys rollers bearings FASTER than too tight.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4755664 - 05/13/18 08:27 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Linctex Offline


Registered: 12/31/16
Posts: 5950
Loc: Waco, TX
OH, always always always always always tighten roller bearings while in motion.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4755710 - 05/13/18 09:33 AM Re: Re-packing wheel bearings by age? [Re: Linctex]
Trav Offline


Registered: 11/20/06
Posts: 18536
Loc: MA, Mittelfranken.de
Originally Posted By: Linctex
Originally Posted By: Nick1994

Also learn how to tighten the axle but. Usually you don't have to tighten them down much, just a little snug until the wheel has some drag, then loosen and put in the cotter pin.


That would end up being a tiny bit loose.
You should see how we torque roller wheel bearings on large aircraft where the tire/wheel assembly is several hundred pounds. You would never believe they would be torqued so tight!

Too loose destroys rollers bearings FASTER than too tight.


You cant compare aircraft to the type used on this car, the ones on aircraft are not adjusted by the center nut. Tightening the center nut does not alter the bearing preload.
A tight bearing will fail much faster than a slightly loose one.
MB cars spec .01 mm - .02 mm play at the hub.
Yes you can do it by feel but done right the bearings will go a very long time without service,
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#4755765 - 05/13/18 10:31 AM Re: Re-packing wheel bearings by age? [Re: Nick1994]
JHZR2 Offline



Registered: 12/14/02
Posts: 41650
Loc: New Jersey
Originally Posted By: Nick1994
Definitely repack them. Wear good disposable rubber gloves to repack the bearings, or get a bearing packer, either way wear gloves, it's messy. Watch a video on how to do it and get new seals, it's an easy job. Once you do one side, the other side will be twice as fast. Maybe 1-2 hours to do both sides?

Also learn how to tighten the axle but. Usually you don't have to tighten them down much, just a little snug until the wheel has some drag, then loosen and put in the cotter pin.


Ive done it before on other MB cars that Ive owned. MB has a decently rigorous procedure that doses grease by mass and sets the axle nut via dial indicator.

It works.

Top
#4755772 - 05/13/18 10:35 AM Re: Re-packing wheel bearings by age? [Re: Trav]
JHZR2 Offline



Registered: 12/14/02
Posts: 41650
Loc: New Jersey
Originally Posted By: Trav
About an hour each if all goes well. While you can adjust the hub nut by feel and it works its a little Mickey Mouse. hide MB has a spec for that you check with a dial indicator. It was set that way almost 40 years ago so I guess it works.

If time permits pull it apart and check everything out like caliper seals and splash shields and take care of anything not up to snuff. I would clean and repack with new seals at this age. USE MB green 2989005110 or a 265.1 approved grease, the yellow from back then has long been discontinued AFAIK.
Before anyone chimes in with just use valvoline or this or that one, MB has a spec and a short approved list, there maybe something to it or maybe not but its always safe to use approved products.


Agree to all.

So your standard recommendation of Mobil 1 for wheel bearings doesnt apply to MBs?

I was likely going to buy the packs of MB green unless there's something notably better...

Top
#4755805 - 05/13/18 11:06 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Kestas Offline



Registered: 06/04/02
Posts: 12268
Loc: The Motor City
I don't think there's anything special about the MB wheel bearing or the MB grease. This is just a wheel bearing, like any other double taper. Use you favorite wheel bearing grease and call it good. I use Mobil Infinitec. It's superior to Mobil 1 and readily available to me. Infinitec is specially made for wheel bearings but not popular in the industry because it isn't easily pumpable at manufacturing lines.

Top
#4755811 - 05/13/18 11:13 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3301
Loc: Columbus,Nebraska
In power generation, we followed the procedures for mounting bearings found in the manufacturer of the equipment and/or the manufacturer of the bearing.

Top
#4755841 - 05/13/18 11:56 AM Re: Re-packing wheel bearings by age? [Re: JHZR2]
Trav Offline


Registered: 11/20/06
Posts: 18536
Loc: MA, Mittelfranken.de
Originally Posted By: JHZR2
Originally Posted By: Trav
About an hour each if all goes well. While you can adjust the hub nut by feel and it works its a little Mickey Mouse. hide MB has a spec for that you check with a dial indicator. It was set that way almost 40 years ago so I guess it works.

If time permits pull it apart and check everything out like caliper seals and splash shields and take care of anything not up to snuff. I would clean and repack with new seals at this age. USE MB green 2989005110 or a 265.1 approved grease, the yellow from back then has long been discontinued AFAIK.
Before anyone chimes in with just use valvoline or this or that one, MB has a spec and a short approved list, there maybe something to it or maybe not but its always safe to use approved products.


Agree to all.

So your standard recommendation of Mobil 1 for wheel bearings doesnt apply to MBs?

I was likely going to buy the packs of MB green unless there's something notably better...


I realize its like any other Timken style tapered roller bearing but like many German vehicles they have a lube spec. Like engine oil specs if we are to treat them as meaningless and say oil is just oil then sure you can use anything.
If it has no spec just has GL 2 I use Mobil 1 but I rather follow the spec if it has one than not if they are available.
Not for nothing but the original went almost 40 years so...

BTW Fuchs has a approved grease in tubes but I am not sure of the number. I will see if I can find it.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
Page 1 of 2 1 2 >