driveline grease zerk
stinson 108-1
Joined: Jan 2012
Posts: 1,015
Likes: 8
From: south jersey
There was a thread about that not long ago. Questions arose about the grease getting to where it needs to be do to the tight fit. Also where to put it. I actually bought the drill&tap and some fittings, but haven't put any in. I think the best way was to disassemble the spline and grind a groove around the shaft that would be perpendicular to the splines and place the fitting at that point along the shaft to spread the grease evenly. One of the members did it this way and hopefully will see this and let us know how it is working. To bad Ford doesn't trust the buyer to do some maintenance and put more fittings in the drive line, or maybe they want to make money on repairs.
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Logistics Pro
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
Well I got it done today. I ordered a new boot and clamps since my old one was gone, it came today so decided to get it done. I measured carefully to get the zerk and the groove in the same place. I used a worn in grinder disc to make the groove because I wanted it to be rounded on the edges. The groove looks deep but it actually stops at the shaft, I only cut the splines. I made the groove about 2/3 toward the back end, thinking that would be the best spot to put grease in as the movement will keep pushing it forward.
I got a zerk at Ace Hardware with 1/4-28 threads, drilled and tapped the yoke on my drill press, cleaned everything really good and put it all together. I applied a tube of Ford teflon grease before assembly, so I won't be using the zerk till next time and I'll report back here.
I have a spare mini grease gun which I am going to take an empty tube and fill it with the Ford Teflon grease and put it in the mini grease gun. I decided to use the Ford grease because it worked so well last time.
I got a zerk at Ace Hardware with 1/4-28 threads, drilled and tapped the yoke on my drill press, cleaned everything really good and put it all together. I applied a tube of Ford teflon grease before assembly, so I won't be using the zerk till next time and I'll report back here.
I have a spare mini grease gun which I am going to take an empty tube and fill it with the Ford Teflon grease and put it in the mini grease gun. I decided to use the Ford grease because it worked so well last time.
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Fleet Mechanic
Joined: Jul 2011
Posts: 1,667
Likes: 5
just be careful not to over grease ,with a boot sealing things up, could cause driveability problems
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Hotshot
Joined: Dec 2005
Posts: 10,250
Likes: 7,676
From: Chino Valley, Arizona
There was a thread about that not long ago. Questions arose about the grease getting to where it needs to be do to the tight fit. Also where to put it. I actually bought the drill&tap and some fittings, but haven't put any in. I think the best way was to disassemble the spline and grind a groove around the shaft that would be perpendicular to the splines and place the fitting at that point along the shaft to spread the grease evenly. One of the members did it this way and hopefully will see this and let us know how it is working. To bad Ford doesn't trust the buyer to do some maintenance and put more fittings in the drive line, or maybe they want to make money on repairs.
(rant over)
More Turbo
Joined: Mar 2005
Posts: 513
Likes: 10
From: Sunny San Diego
How has this worked out for you??
I'm about to tackle it... and wanted to hear some feedback.
I'm about to tackle it... and wanted to hear some feedback.
Well I got it done today. I ordered a new boot and clamps since my old one was gone, it came today so decided to get it done. I measured carefully to get the zerk and the groove in the same place. I used a worn in grinder disc to make the groove because I wanted it to be rounded on the edges. The groove looks deep but it actually stops at the shaft, I only cut the splines. I made the groove about 2/3 toward the back end, thinking that would be the best spot to put grease in as the movement will keep pushing it forward.
I got a zerk at Ace Hardware with 1/4-28 threads, drilled and tapped the yoke on my drill press, cleaned everything really good and put it all together. I applied a tube of Ford teflon grease before assembly, so I won't be using the zerk till next time and I'll report back here.
I have a spare mini grease gun which I am going to take an empty tube and fill it with the Ford Teflon grease and put it in the mini grease gun. I decided to use the Ford grease because it worked so well last time.
I got a zerk at Ace Hardware with 1/4-28 threads, drilled and tapped the yoke on my drill press, cleaned everything really good and put it all together. I applied a tube of Ford teflon grease before assembly, so I won't be using the zerk till next time and I'll report back here.
I have a spare mini grease gun which I am going to take an empty tube and fill it with the Ford Teflon grease and put it in the mini grease gun. I decided to use the Ford grease because it worked so well last time.
Hotshot
Joined: Nov 2006
Posts: 11,286
Likes: 263
From: North of Greenville
To address the issue of "too much grease, you need only do two things...
1) drill a very tiny relief hole (no more than 1/8") at the end of the housing where the end of the spline shaft fits, and
2) use a high tack moly grease which will not sling out at all, even at highway speeds.
Or... if you want to get REALLY fancy, you can use a grease relief fitting which will relieve pressure at 0.25-1.0 psi. These fittings can be had for about $2-$3 each and come with both top and side vents. You can also get them with 1/8" NPT threads, sort of like the one in the link below...
Pressure Relief Sidevent Grease Fitting 45 80 PSI 1pc | eBay
More links to other suppliers...
http://www.saeproducts.com/pressure-...-fittings.html
http://www.huyett.com/catalog/index....ath=24_136_201
http://www.huyett.com/catalog/index....ath=24_135_173
http://www.mbfittings.com/relief.htm
1) drill a very tiny relief hole (no more than 1/8") at the end of the housing where the end of the spline shaft fits, and
2) use a high tack moly grease which will not sling out at all, even at highway speeds.
Or... if you want to get REALLY fancy, you can use a grease relief fitting which will relieve pressure at 0.25-1.0 psi. These fittings can be had for about $2-$3 each and come with both top and side vents. You can also get them with 1/8" NPT threads, sort of like the one in the link below...
Pressure Relief Sidevent Grease Fitting 45 80 PSI 1pc | eBay
More links to other suppliers...
http://www.saeproducts.com/pressure-...-fittings.html
http://www.huyett.com/catalog/index....ath=24_136_201
http://www.huyett.com/catalog/index....ath=24_135_173
http://www.mbfittings.com/relief.htm
More Turbo
Joined: Mar 2005
Posts: 513
Likes: 10
From: Sunny San Diego
I didn't wait for an answer from this post, but got one elsewhere....
And got'er done in about an hour, total (took me longer to find the right 12 point socket). I already had the zerks, tap/die set, etc.
Here's my completed driveline (on my Excursion), with a grooved spline shaft and (4) zerks (to keep from having to overfill one or two zerks - I just did 4).
And got'er done in about an hour, total (took me longer to find the right 12 point socket). I already had the zerks, tap/die set, etc.
Here's my completed driveline (on my Excursion), with a grooved spline shaft and (4) zerks (to keep from having to overfill one or two zerks - I just did 4).
More Turbo
Joined: Mar 2005
Posts: 513
Likes: 10
From: Sunny San Diego
Yup... that's me! Mr. Overkill (OCD)... and Batman!
...if your drilling and tapping one hole, or two... what's the difference if you do 4? Well, only about 5 more minutes. So WHY NOT?
...if your drilling and tapping one hole, or two... what's the difference if you do 4? Well, only about 5 more minutes. So WHY NOT?
Lead Driver
Joined: Jul 2003
Posts: 7,404
Likes: 52
From: Wheatland, Mo
My thought was doing 4 would keep the drive shaft in balance. I wasn't sure if 1 would throw it off.