Home » Public Forums » GMCnet » Oem knuckle grease zerk
| Oem knuckle grease zerk [message #212654] |
Fri, 28 June 2013 16:28  |
sgltrac
Messages: 2797
Registered: April 2011
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I was hoping someone would post a link to photos of the front knuckle showing the grease zerk location. I also recall reading about some light machining to create a path for the grease to reach the bearings????
Thanks in advance,
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: Oem knuckle grease zerk [message #212656 is a reply to message #212654] |
Fri, 28 June 2013 16:38  |
sgltrac
Messages: 2797
Registered: April 2011
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Sorry for the double post, on my phone I could not see the atatched info on Gene's site
Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Oem knuckle grease zerk [message #212663 is a reply to message #212659] |
Fri, 28 June 2013 18:04 |
sgltrac
Messages: 2797
Registered: April 2011
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Thanks for all the replies and links. I think I will proceed like Gene did cause I know drilling holes through the spacer would be a pita. I understand the placement of the zerk but when I looked at the bearing stack I could not see how the grease would make it from the back of the spacer to the bearing surface. Is this why in the lube procedure photos Ken H posted he drives the axle part way out? To allow grease to get from the back of the spacer between the spacer and bearings? So if I don't want to modify the spacer it would just mean that I must push the drive shaft back? Does inclusion of the modified spacer remove the need to loosen and move the drive shaft?
Todd Sullivan
Sully
77 royale
Seattle
On Jun 28, 2013, at 3:16 PM, Emery Stora <emerystora@me.com> wrote:
> You can drill holes but you'll probably break a lot of drill bits. I used a Drenel tool with a small cutting wheel to cut a groove all around the center outside of the spacer and then 4 grooves at a right angle to the first groove and then four grooves on each face that intersect the four grooves on the outer edge.
>
> Emery Stora
>
> On Jun 28, 2013, at 3:28 PM, sgltrac <sgltrac@gmail.com> wrote:
>
>>
>>
>> I was hoping someone would post a link to photos of the front knuckle showing the grease zerk location. I also recall reading about some light machining to create a path for the grease to reach the bearings????
>>
>> Thanks in advance,
>> --
>> Sully
>> 77 Royale basket case.
>> Future motorhome land speed record holder(bucket list)
>> Seattle, Wa.
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Oem knuckle grease zerk [message #212665 is a reply to message #212663] |
Fri, 28 June 2013 18:21 |
emerystora
Messages: 4442
Registered: January 2004
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You MUST groove the spacer or you won't get grease where you need it into the bearing. The reason for loosing the axle nut and pushing the axle in a little is so that the old grease (contaminated) by the seal is pushed outside the knckle.
Emery Stora
On Jun 28, 2013, at 5:04 PM, Todd Sullivan wrote:
> Thanks for all the replies and links. I think I will proceed like Gene did cause I know drilling holes through the spacer would be a pita. I understand the placement of the zerk but when I looked at the bearing stack I could not see how the grease would make it from the back of the spacer to the bearing surface. Is this why in the lube procedure photos Ken H posted he drives the axle part way out? To allow grease to get from the back of the spacer between the spacer and bearings? So if I don't want to modify the spacer it would just mean that I must push the drive shaft back? Does inclusion of the modified spacer remove the need to loosen and move the drive shaft?
>
> Todd Sullivan
>
> Sully
> 77 royale
> Seattle
> On Jun 28, 2013, at 3:16 PM, Emery Stora <emerystora@me.com> wrote:
>
>> You can drill holes but you'll probably break a lot of drill bits. I used a Drenel tool with a small cutting wheel to cut a groove all around the center outside of the spacer and then 4 grooves at a right angle to the first groove and then four grooves on each face that intersect the four grooves on the outer edge.
>>
>> Emery Stora
>>
>> On Jun 28, 2013, at 3:28 PM, sgltrac <sgltrac@gmail.com> wrote:
>>
>>>
>>>
>>> I was hoping someone would post a link to photos of the front knuckle showing the grease zerk location. I also recall reading about some light machining to create a path for the grease to reach the bearings????
>>>
>>> Thanks in advance,
>>> --
>>> Sully
>>> 77 Royale basket case.
>>> Future motorhome land speed record holder(bucket list)
>>> Seattle, Wa.
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> _______________________________________________
>> GMCnet mailing list
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| Re: [GMCnet] Oem knuckle grease zerk [message #212675 is a reply to message #212663] |
Fri, 28 June 2013 19:06 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Sir: the bearing spacer is smaller od than the races so the grove around the spacer isn`t needed. I do notch the spacer on the race surface 2 places on each side 180* apart. Works just as well in a bench test as my slots and holes (Yes a PITA.) Taking the nut off and pushing the axle back past the seal gives the old grease a place to escape without damaging or pushing out the seals. You do rotate the wheel slowly as you grease.
the seals| sgltrac wrote on Fri, 28 June 2013 19:04 |
Thanks for all the replies and links. I think I will proceed like Gene did cause I know drilling holes through the spacer would be a pita. I understand the placement of the zerk but when I looked at the bearing stack I could not see how the grease would make it from the back of the spacer to the bearing surface. Is this why in the lube procedure photos Ken H posted he drives the axle part way out? To allow grease to get from the back of the spacer between the spacer and bearings? So if I don't want to modify the spacer it would just mean that I must push the drive shaft back? Does inclusion of the modified spacer remove the need to loosen and move the drive shaft?
Todd Sullivan
Sully
77 royale
Seattle
On Jun 28, 2013, at 3:16 PM, Emery Stora <emerystora@me.com> wrote:
> You can drill holes but you'll probably break a lot of drill bits. I used a Drenel tool with a small cutting wheel to cut a groove all around the center outside of the spacer and then 4 grooves at a right angle to the first groove and then four grooves on each face that intersect the four grooves on the outer edge.
>
> Emery Stora
>
> On Jun 28, 2013, at 3:28 PM, sgltrac <sgltrac@gmail.com> wrote:
>
>>
>>
>> I was hoping someone would post a link to photos of the front knuckle showing the grease zerk location. I also recall reading about some light machining to create a path for the grease to reach the bearings????
>>
>> Thanks in advance,
>> --
>> Sully
>> 77 Royale basket case.
>> Future motorhome land speed record holder(bucket list)
>> Seattle, Wa.
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
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C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] Oem knuckle grease zerk [message #212688 is a reply to message #212675] |
Fri, 28 June 2013 21:06 |
sgltrac
Messages: 2797
Registered: April 2011
Karma: 1
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Senior Member |
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After looking at the photos and stressing about location and drill angle I finally said f:$ck it and eyeballed the holes and hit the spot where the spacer lives. Planning on grooving the spacer for grease migration Monday. Many thanks to all of you who posted links/warnings/instruction etc. I love research by question. You guys are on call 24/7. Pretty awesome.
Todd Sullivan
Sully
77 royale
Seattle
On Jun 28, 2013, at 5:06 PM, Charles Boyd <covered-wagon@comcast.net> wrote:
>
>
> Sir: the bearing spacer is smaller od than the races so the grove around the spacer isn`t needed. I do notch the spacer on the race surface 2 places on each side 180* apart. Works just as well in a bench test as my slots and holes (Yes a PITA.) Taking the nut off and pushing the axle back past the seal gives the old grease a place to escape without damaging or pushing out the seals. You do rotate the wheel slowly as you grease.
>
>
>
>
> the sealssgltrac wrote on Fri, 28 June 2013 19:04
>> Thanks for all the replies and links. I think I will proceed like Gene did cause I know drilling holes through the spacer would be a pita. I understand the placement of the zerk but when I looked at the bearing stack I could not see how the grease would make it from the back of the spacer to the bearing surface. Is this why in the lube procedure photos Ken H posted he drives the axle part way out? To allow grease to get from the back of the spacer between the spacer and bearings? So if I don't want to modify the spacer it would just mean that I must push the drive shaft back? Does inclusion of the modified spacer remove the need to loosen and move the drive shaft?
>>
>> Todd Sullivan
>>
>> Sully
>> 77 royale
>> Seattle
>> On Jun 28, 2013, at 3:16 PM, Emery Stora <emerystora@me.com> wrote:
>>
>>> You can drill holes but you'll probably break a lot of drill bits. I used a Drenel tool with a small cutting wheel to cut a groove all around the center outside of the spacer and then 4 grooves at a right angle to the first groove and then four grooves on each face that intersect the four grooves on the outer edge.
>>>
>>> Emery Stora
>>>
>>> On Jun 28, 2013, at 3:28 PM, sgltrac <sgltrac@gmail.com> wrote:
>>>
>>>>
>>>>
>>>> I was hoping someone would post a link to photos of the front knuckle showing the grease zerk location. I also recall reading about some light machining to create a path for the grease to reach the bearings????
>>>>
>>>> Thanks in advance,
>>>> --
>>>> Sully
>>>> 77 Royale basket case.
>>>> Future motorhome land speed record holder(bucket list)
>>>> Seattle, Wa.
>>>> _______________________________________________
>>>> GMCnet mailing list
>>>> Unsubscribe or Change List Options:
>>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
>
> --
> C. Boyd
> 76 Crestmont
> East Tennessee
> _______________________________________________
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Oem knuckle grease zerk [message #212695 is a reply to message #212690] |
Fri, 28 June 2013 22:47 |
sgltrac
Messages: 2797
Registered: April 2011
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You must be kidding me? If I missed the sweet spot I could plug that hole and drill another.
Todd Sullivan
Sully
77 royale
Seattle
On Jun 28, 2013, at 7:34 PM, A. <markbb1@netzero.com> wrote:
>
>
> sgltrac wrote on Fri, 28 June 2013 21:06
>> After looking at the photos and stressing about location and drill angle I finally said f:$ck it and eyeballed the holes and hit the spot where the spacer lives. ...
> You're more of a gambler than I am. Risking $255 + $100 core charge on a knuckle to avoid buying the $90 jig.
> --
> '73 23' Sequoia For Camping
> '73 23' CanyonLands For Sale
> UA (Upper Alabama)
> "Time is money. If you use YOUR time, you get to keep YOUR money."
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Sully
77 Royale basket case.
Future motorhome land speed record holder(bucket list)
Seattle, Wa.
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| Re: [GMCnet] Oem knuckle grease zerk [message #212705 is a reply to message #212663] |
Sat, 29 June 2013 00:50 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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or install the one ton
http://gmcmotorhome.info/front.html
and get 200,000 mile bearings that can be replaced with
4 bolts
plus
gene
On Fri, Jun 28, 2013 at 4:04 PM, Todd Sullivan <sgltrac@gmail.com> wrote:
> Thanks for all the replies and links. I think I will proceed like Gene did
> cause I know drilling holes through the spacer would be a pita. I
> understand the placement of the zerk but when I looked at the bearing stack
> I could not see how the grease would make it from the back of the spacer to
> the bearing surface. Is this why in the lube procedure photos Ken H posted
> he drives the axle part way out? To allow grease to get from the back of
> the spacer between the spacer and bearings? So if I don't want to modify
> the spacer it would just mean that I must push the drive shaft back? Does
> inclusion of the modified spacer remove the need to loosen and move the
> drive shaft?
>
> Todd Sullivan
>
> Sully
> 77 royale
> Seattle
> On Jun 28, 2013, at 3:16 PM, Emery Stora <emerystora@me.com> wrote:
>
> > You can drill holes but you'll probably break a lot of drill bits. I
> used a Drenel tool with a small cutting wheel to cut a groove all around
> the center outside of the spacer and then 4 grooves at a right angle to the
> first groove and then four grooves on each face that intersect the four
> grooves on the outer edge.
> >
> > Emery Stora
> >
> > On Jun 28, 2013, at 3:28 PM, sgltrac <sgltrac@gmail.com> wrote:
> >
> >>
> >>
> >> I was hoping someone would post a link to photos of the front knuckle
> showing the grease zerk location. I also recall reading about some light
> machining to create a path for the grease to reach the bearings????
> >>
> >> Thanks in advance,
> >> --
> >> Sully
> >> 77 Royale basket case.
> >> Future motorhome land speed record holder(bucket list)
> >> Seattle, Wa.
> >> _______________________________________________
> >> GMCnet mailing list
> >> Unsubscribe or Change List Options:
> >> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Oem knuckle grease zerk [message #212712 is a reply to message #212659] |
Sat, 29 June 2013 07:57 |
Jim Miller
Messages: 501
Registered: March 2008
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On Jun 28, 2013, at 6:16 PM, Emery Stora wrote:
> You can drill holes but you'll probably break a lot of drill bits.
The spacer is drillable by mortal men but as Emery said it is indeed a tough task. I drilled 8 1/16" holes, 45 degrees apart using a dividing head on a mill with a TiN drill bit. It took tapping oil and a lot of patience to prevent breakage. Grinding small reliefs 90 degrees apart on the faces of the spacer is probably equally effective.
I have some photos at:
http://www.jcmco.com/gallery/album26?page=2
--Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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| Re: [GMCnet] Oem knuckle grease zerk [message #212714 is a reply to message #212712] |
Sat, 29 June 2013 08:06 |
Mr ERFisher
Messages: 7117
Registered: August 2005
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wow a lot of work
the easy way is to install the zerk
- then use the Lensi technique described here
http://gmcmotorhome.info/front.html#ZERK
this should give you 100,000
mile bearings - enough till you replace the whole front end
gene
On Sat, Jun 29, 2013 at 5:57 AM, Jim Miller <gmcnet@jcmco.com> wrote:
> On Jun 28, 2013, at 6:16 PM, Emery Stora wrote:
>
> > You can drill holes but you'll probably break a lot of drill bits.
>
> The spacer is drillable by mortal men but as Emery said it is indeed a
> tough task. I drilled 8 1/16" holes, 45 degrees apart using a dividing head
> on a mill with a TiN drill bit. It took tapping oil and a lot of patience
> to prevent breakage. Grinding small reliefs 90 degrees apart on the faces
> of the spacer is probably equally effective.
>
> I have some photos at:
> http://www.jcmco.com/gallery/album26?page=2
>
> --Jim Miller
> 1977 Eleganza II
> 1977 Royale
> Hamilton, OH
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: [GMCnet] Oem knuckle grease zerk [message #212718 is a reply to message #212714] |
Sat, 29 June 2013 08:45 |
Jim Miller
Messages: 501
Registered: March 2008
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On Jun 29, 2013, at 9:06 AM, gene Fisher wrote:
> wow a lot of work the easy way is to install the zerk - then use the Lensi technique described here
The work in the mill was only to make the drill jig.
The drill jig can then be used to drill the zerk passage with the knuckles still in place on the vehicle; that's the whole idea.
--Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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Jim Miller
1977 Eleganza II
1977 Royale
Hamilton, OH
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