moly injection!

[Kaoscruizer]

OK boys .. I think am thinking I didn't put enough moly on the portion of the shaft that the spindle bushing rides on when re-assembling my axle during the birf job.

I am putting on new rotors this week and wondered if I could inject moly into the spindle bushing by using a needle adaptor on my grease gun? I would take it down to the point you see in the pic. Will the grease find it's way into the spindle bushing or not?

 

[Kaoscruizer]

By the lack of responses I am assuming that I am lazy and should just take a few more bolts out and do it right.

Sometimes saying nothing says everything!!

 

[bhmmapping]

where would you inject it?

 

[ardentyota]

There was a thread I saw once where a guy made a knuckle lubricator from Schd 40 3 or 4" pipe cap welded to an old hub nut. Then he drilled and tapped a zerk on it. Screw it on, pump a couple times and the spindle was lubed w/o disassembly.

I think it was on yotatech.

I don't see how the needle would get grease in far enough to reach where it needs to be.

 

[Grench]

I think you may be under the mistaken illusion that the threaded hole in the end of the birfield actually goes someplace. It does not. It's just there to help you pull the assembly toward you a touch to put on the snap ring.

There -are- some Canadian mining birfields for 70 series trucks that DO have a through and through tap on them with a zerk fitting in that spot. No, you don't have those.

 

[jlg32281]

A couple months ago someone posted up that they had a machine shop cut those holes all the way through and fit it with a zerk. When I do my birf job, I will have mine cut all the way through.

 

[ardentyota]

He's not trying to lube the knuckle/birfield, he's trying to lube the spindle. I corrected my post for clarity.

Edit- Here's the link: Spindle Lubricator® for IFS axle shaft. PICTURES! - YotaTech Forums

He made it for IFS spindles, but SA spindles are pretty much the same on these trucks. HTH

 

[corsair23]

I think I recall reading a thread, where after much debate and back and forth about making sure the inside of the spindle is lubed up and if you failed to do so on a rebuild that you had to go back in and get it done, that someone determined in the end that in fact enough moly grease will migrate to where it needs to be that you needn't worry about it...How's that for a run on sentence?

Hopefully someone else can confirm if they also read the same thread...

 

[Kaoscruizer]

with the needle injector, I thought I could get enough in between the axle splines and the spindle housing over it. Now that I look at it again .. probably wouldn't be enough room for it to get in there.

I took my flange off a month back to check for migration .. one side had moly in the flange, the other side didn't.

I will just pull it off and do it right .. thanks boyz!

PS .. I might be a little Forrest Gumpish, but I do know that you can't pump anything into the end of the axle stub! jeez!!

 

[80t0ylc]

I think I recall reading a thread, where after much debate and back and forth about making sure the inside of the spindle is lubed up and if you failed to do so on a rebuild that you had to go back in and get it done, that someone determined in the end that in fact enough moly grease will migrate to where it needs to be that you needn't worry about it...How's that for a run on sentence?

Hopefully someone else can confirm if they also read the same thread...

I don't know if it's the same thread or not, but I remember IdahoDoug proving that it does migrate from knuckle into the spindle area by using a different colored grease and disassembling later to verify. As to how much and how long - can't remember. HTH