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| [GMCnet] Recommended grease for packing rear bearings [message #302996] |
Sun, 03 July 2016 13:43  |
Anonymous
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Could the same be used for all the zerk fittings?
With all the new recipes - what appears to be the best when cleaning the bearings for repacking?
thank you all in your recommendations for a newbie!
76 Birchaven, Rear bath, 455, 54K miles, brake system flushing and replacing wheel cylinders, rear shoes and SS hoses,
quad bags, foam extinguisher in engine compartment, KYB shocks, and will be replacing fuel lines (3/8 copper), filter and electric pump. - am keeping busy
Virgil
Photos of Aluminum Falcon under vpearce
Lake Oswego, OR
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303001 is a reply to message #302996] |
Sun, 03 July 2016 14:46  |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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I'm using Valvoline Synpower which is a completely synthetic grease. Should work for pretty much anything.
--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] Recommended grease for packing rear bearings [message #303021 is a reply to message #303019] |
Sun, 03 July 2016 21:57 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Personally, I won't use that bleedin' red Mobil 1 for nuthin! I don't
think the color change is worth enough to give up Synpower with its MS02 in
any case.
JMHO,
Ken H.
On Mon, Jul 4, 2016 at 7:36 AM, Rob Mueller wrote:
> I agree with Johnny except for the front wheel bearings if you have zerk
> fittings installed then I suggest Mobil 1.
>
> Why you ask?
>
> When you have grease zerks installed after you clean the area around the
> outer CV joint properly; remove the axle nut, push the CV
> joint in as far as it will go and squirt Mobil 1 into the zerk while you
> spin the hub you will see the color coming out changing
> from a dark red to bright red of new grease.
>
> If you use Valvoline Synpower with molybdenum (black) I wonder if there
> will be any change in color to show the bearings have fresh
> grease in them.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303031 is a reply to message #303021] |
Sun, 03 July 2016 23:34 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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I stopped by Blaine's on the way to a rally with him and Diane. He noticed that I had oil leaking out of my rear hubs. When we tore them apart we found that the mobil one grease that I used to pack them had turned to oil and leaked out of all 8 rear bearings.
We ended up repacking ALL 8 rear bearings before I continued on the trip.
Blaine really saved my bacon with that observation.
I would not use Mobil one in my kids wagon or bicycle. And definitely never in any vehicle I own. Valvoline Synn Power it is for me.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303045 is a reply to message #303042] |
Mon, 04 July 2016 08:44 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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There are lots of personal preferences, but what you need is a good high temp wheel bearing grease. I have been using Mystic J-6 and have had good luck with it:
http://www.oreillyauto.com/site/c/detail/MYS3/JT6HITEMP1/N0417.oap?ck=Search_wheel+bearing+grease_-1_3178&keyword=wheel+bearing+grease
I have disc brakes on the rear and haven't had any issues with the Mystic. As Rob states. I have been using Mobil-1 on the Dave Lenzi front bearings with the grease zerk, mostly because that's what Dave packs them with when he reconditions them, and he doesn't recommend mixing grease. I have NOT had any separation issues with the Mobil-1 as others have reported, not even in hot Arizona.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303063 is a reply to message #303045] |
Mon, 04 July 2016 17:32 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Carl S. wrote on Mon, 04 July 2016 09:44There are lots of personal preferences, but what you need is a good high temp wheel bearing grease. I have been using Mystic J-6 and have had good luck with it:
http://www.oreillyauto.com/site/c/detail/MYS3/JT6HITEMP1/N0417.oap?ck=Search_wheel+bearing+grease_-1_3178&keyword=wheel+bearing+grease
I have disc brakes on the rear and haven't had any issues with the Mystic. As Rob states. I have been using Mobil-1 on the Dave Lenzi front bearings with the grease zerk, mostly because that's what Dave packs them with when he reconditions them, and he doesn't recommend mixing grease. I have NOT had any separation issues with the Mobil-1 as others have reported, not even in hot Arizona.
This is almost as bad as the other tire and lube oil wars, but I will enter into it only to clear up some things.
The PI sheets of all four referenced below are very much alike.
The biggest difference is the color and the presence of MoS2 in the grease.
Mobil 1, Valvoline Synpro and the Caterpillar are synthetic bases.
I have used and had the Mobil 1 grease in my rear bearing separate. I did not pack those, I just unpacked them to replace the greased brake shoes. The seals should have prevented that. My best guess it that it was 12~15 years old and run about 15K miles.
I have used Mystic JT-6 but it was years ago and it was no advantage in the bearing that I was having trouble keeping alive.
I have a problem bearing in one machine and thus far, Valvoline Synpro has been the answer to keeping it in service. This is a machine I have had for 35 years.
MoS2 is a well understood EP additive. I can supply personal anecdotes of situations where MoS2 has saved things, but it is all anecdotal.
The only grease I know of that is more expensive than Synpro is Caterpillar Desert Gold. It's PI sheet does show some advantage in a few areas. It is also a MoS2 loaded grease. The big issue is that I can only order a case at a time for twice (approximately) the price of the Synpro.
The advantage of a synthetic grease is that it will have a longer service life because it does not "age out" and harden or thin like most dino greases. Remember (if you are over 60 - this is easy) when you used to have to repack wheel bearings every 25K or 2 years?? That was the old grease. Now wheel bearings are good for the life of most cars (20~25yrs+ in my case). That is synthetic grease.
I don't mind the ~7$/tube of Synpro. I still am trying real hard to over grease my coach because I don't know of any part that is less expensive to replace than a tube of grease. The bogies get it every 1K, whole front end gets it every 3K. The rears will be repacked every 15~20k, but that is more to inspect the brakes than anything else and the Lenzi hubs were/are packed with Synpro and will still get pressed up a every 2 years or 25K.
That's my plan. If it doesn't work out, you will hear it here.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303093 is a reply to message #303063] |
Tue, 05 July 2016 09:47 |
GMC.LES
Messages: 505
Registered: April 2014
Karma: -2
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Senior Member |
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I've had the valvoline synpower separate on me, but the tubes were quite old.
I had purchased 2 cases of old stock. The tube exteriors were Gold colored, not the black markings seen on current tubes. The oil had started to leach out at the plastic cap end, resulting in the first 2" of grease being a much thicker paste. The rest of the tube contents look normal. The grease will pump through a grease gun until I reach the thicker stuff, at which time I need to change out the tube.
Like many of you, I use the synpower everywhere, but I keep in mind that it can thicken and loose its oil like many other greases. Fortunately the separation hasn't caused any problems for me other than a messy storage issue.
Les Burt
Montreal
'75 Eleganza 26'
The EWIP (Eternal Work In Progress)
> On Jul 4, 2016, at 6:32 PM, Matt Colie wrote:
>
> Carl S. wrote on Mon, 04 July 2016 09:44
>> There are lots of personal preferences, but what you need is a good high temp wheel bearing grease. I have been using Mystic J-6 and have had
>> good luck with it:
>>
>> http://www.oreillyauto.com/site/c/detail/MYS3/JT6HITEMP1/N0417.oap?ck=Search_wheel+bearing+grease_-1_3178&keyword=wheel+bearing+grease
>>
>> I have disc brakes on the rear and haven't had any issues with the Mystic. As Rob states. I have been using Mobil-1 on the Dave Lenzi front
>> bearings with the grease zerk, mostly because that's what Dave packs them with when he reconditions them, and he doesn't recommend mixing grease. I
>> have NOT had any separation issues with the Mobil-1 as others have reported, not even in hot Arizona.
>
> This is almost as bad as the other tire and lube oil wars, but I will enter into it only to clear up some things.
> The PI sheets of all four referenced below are very much alike.
> The biggest difference is the color and the presence of MoS2 in the grease.
> Mobil 1, Valvoline Synpro and the Caterpillar are synthetic bases.
>
> I have used and had the Mobil 1 grease in my rear bearing separate. I did not pack those, I just unpacked them to replace the greased brake shoes.
> The seals should have prevented that. My best guess it that it was 12~15 years old and run about 15K miles.
>
> I have used Mystic JT-6 but it was years ago and it was no advantage in the bearing that I was having trouble keeping alive.
>
> I have a problem bearing in one machine and thus far, Valvoline Synpro has been the answer to keeping it in service. This is a machine I have had for
> 35 years.
>
> MoS2 is a well understood EP additive. I can supply personal anecdotes of situations where MoS2 has saved things, but it is all anecdotal.
>
> The only grease I know of that is more expensive than Synpro is Caterpillar Desert Gold. It's PI sheet does show some advantage in a few areas. It
> is also a MoS2 loaded grease. The big issue is that I can only order a case at a time for twice (approximately) the price of the Synpro.
>
> The advantage of a synthetic grease is that it will have a longer service life because it does not "age out" and harden or thin like most dino
> greases. Remember (if you are over 60 - this is easy) when you used to have to repack wheel bearings every 25K or 2 years?? That was the old grease.
> Now wheel bearings are good for the life of most cars (20~25yrs+ in my case). That is synthetic grease.
>
> I don't mind the ~7$/tube of Synpro. I still am trying real hard to over grease my coach because I don't know of any part that is less expensive to
> replace than a tube of grease. The bogies get it every 1K, whole front end gets it every 3K. The rears will be repacked every 15~20k, but that is
> more to inspect the brakes than anything else and the Lenzi hubs were/are packed with Synpro and will still get pressed up a every 2 years or 25K.
>
> That's my plan. If it doesn't work out, you will hear it here.
>
> Matt
> --
> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control Arms
> Now with both true Keyless and remote entry
> SE Michigan - Twixt A2 and Detroit
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303094 is a reply to message #303093] |
Tue, 05 July 2016 10:11 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Ditto. Only 1 tube in 10 years or so.
Ken H.
On Tue, Jul 5, 2016 at 10:47 AM, Les Burt wrote:
> I've had the valvoline synpower separate on me, but the tubes were quite
> old.
>
> I had purchased 2 cases of old stock. The tube exteriors were Gold
> colored, not the black markings seen on current tubes. The oil had started
> to leach out at the plastic cap end, resulting in the first 2" of grease
> being a much thicker paste. The rest of the tube contents look normal. The
> grease will pump through a grease gun until I reach the thicker stuff, at
> which time I need to change out the tube.
>
> Like many of you, I use the synpower everywhere, but I keep in mind that
> it can thicken and loose its oil like many other greases. Fortunately the
> separation hasn't caused any problems for me other than a messy storage
> issue.
>
> Les Burt
> Montreal
> '75 Eleganza 26'
> The EWIP (Eternal Work In Progress)
>
>
>> On Jul 4, 2016, at 6:32 PM, Matt Colie wrote:
>>
>> Carl S. wrote on Mon, 04 July 2016 09:44
>>> There are lots of personal preferences, but what you need is a good
> high temp wheel bearing grease. I have been using Mystic J-6 and have had
>>> good luck with it:
>>>
>>>
> http://www.oreillyauto.com/site/c/detail/MYS3/JT6HITEMP1/N0417.oap?ck=Search_wheel+bearing+grease_-1_3178&keyword=wheel+bearing+grease
>>>
>>> I have disc brakes on the rear and haven't had any issues with the
> Mystic. As Rob states. I have been using Mobil-1 on the Dave Lenzi front
>>> bearings with the grease zerk, mostly because that's what Dave packs
> them with when he reconditions them, and he doesn't recommend mixing
> grease. I
>>> have NOT had any separation issues with the Mobil-1 as others have
> reported, not even in hot Arizona.
>>
>> This is almost as bad as the other tire and lube oil wars, but I will
> enter into it only to clear up some things.
>> The PI sheets of all four referenced below are very much alike.
>> The biggest difference is the color and the presence of MoS2 in the
> grease.
>> Mobil 1, Valvoline Synpro and the Caterpillar are synthetic bases.
>>
>> I have used and had the Mobil 1 grease in my rear bearing separate. I
> did not pack those, I just unpacked them to replace the greased brake shoes.
>> The seals should have prevented that. My best guess it that it was 12~15
> years old and run about 15K miles.
>>
>> I have used Mystic JT-6 but it was years ago and it was no advantage in
> the bearing that I was having trouble keeping alive.
>>
>> I have a problem bearing in one machine and thus far, Valvoline Synpro
> has been the answer to keeping it in service. This is a machine I have had
> for
>> 35 years.
>>
>> MoS2 is a well understood EP additive. I can supply personal anecdotes
> of situations where MoS2 has saved things, but it is all anecdotal.
>>
>> The only grease I know of that is more expensive than Synpro is
> Caterpillar Desert Gold. It's PI sheet does show some advantage in a few
> areas. It
>> is also a MoS2 loaded grease. The big issue is that I can only order a
> case at a time for twice (approximately) the price of the Synpro.
>>
>> The advantage of a synthetic grease is that it will have a longer
> service life because it does not "age out" and harden or thin like most dino
>> greases. Remember (if you are over 60 - this is easy) when you used to
> have to repack wheel bearings every 25K or 2 years?? That was the old
> grease.
>> Now wheel bearings are good for the life of most cars (20~25yrs+ in my
> case). That is synthetic grease.
>>
>> I don't mind the ~7$/tube of Synpro. I still am trying real hard to
> over grease my coach because I don't know of any part that is less
> expensive to
>> replace than a tube of grease. The bogies get it every 1K, whole front
> end gets it every 3K. The rears will be repacked every 15~20k, but that is
>> more to inspect the brakes than anything else and the Lenzi hubs
> were/are packed with Synpro and will still get pressed up a every 2 years
> or 25K.
>>
>> That's my plan. If it doesn't work out, you will hear it here.
>>
>> Matt
>> --
>> Matt & Mary Colie - Members GMCMI, GMCGL, GMCES
>> '73 Glacier 23 - Still Loving OE Rear Drum Brake with Applied Control
> Arms
>> Now with both true Keyless and remote entry
>> SE Michigan - Twixt A2 and Detroit
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Recommended grease for packing rear bearings [message #303098 is a reply to message #303094] |
Tue, 05 July 2016 11:10 |
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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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I discovered that if you leave either Valvoline Synpower or Mobil 1 in a grease gun with the spring plunger applying pressure to the
grease cartridge both will separate and you will find an oily mess. After that I got some BIG zip lock bags and put them in them so
the separated oil did not make a mess but it still separates. I then tried pulling the plunger out and stored them horizontally
neither grease separates; same goes for the unopened tubes stored horizontally.
Regards,
Rob M.
USAussie - Downunder
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Ken Henderson
Sent: Wednesday, July 06, 2016 1:11 AM
To: gmclist@list.gmcnet.org
Subject: Re: [GMCnet] Recommended grease for packing rear bearings
Ditto. Only 1 tube in 10 years or so.
Ken H.
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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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