Do you have greaseable shackles?
Have you greased them through the zirk fitting on the bolt head post installation?
How do you know the grease traveled throughout the shackle bushings? Did you see it come out the ends?
How'd that go?
So recently I installed agreeable shackles ...... YAY! ( not so fast )
Prior to install I greased up all parts per the instructions. ( yeah I followed instructions )
Once the vehicle was on the ground and all bolts torqued down, and not overtightened ( again according to instructions ) I decided to give the zirk fittings a work out.
Popped on the gun and began to pump .... went to remove the grease gun and out pops the zirk fitting ( stuck inside the grease gun ). WTF???? This occurred on 4 of 8.
I called the manufacturer and they said " oh this is the first time we have heard of this " .... a line I have heard before from aftermarket parts folks.
Well they went on to say ..... " our zirk fitting are not threaded, they are pressed in ", then they told me to try and tap the fittings back in with a hammer.
So I took the fitting, hammer and phone out to the Jeep. Tap them in with the hammer? No need to do that, they slipped right in and fell right out.
It was if I was trying to breed an elephant with a #2 lead pencil .... it was that loose.
Well they are sending me out new bolts .... so we will see how that goes.
However I am going to probably install a better fix.
I will remove the failed ones and completely degrease/clean them.
Next I will drill out the head and preparation for use of a 1/4-28 Tap.
Following that I will use that tap to thread the bolt heads.
Next I will install threaded zirk fittings.
One other thing ....... after careful consideration and the manufacture agrees with me, the best way to grease through the zirk fitting is as follows ......
1. Raise vehicle to take pressure off the suspension.
2. Loosen all shackle bolts.
3. Proceed to grease all bushings through zirk fittings.
4. Lower vehicle to the ground.
5. Retorque shackle bolts.
I came to this conclusion after looking at the design of the graseable shackles. With everything tightened up, it is all but impossible for the grease being pumped in, to travel throughout the bushing. You grease gun is pumping the grease in and it will be UNDER PRESSURE if it has no place to move to.
That pressure is what contributed to the zirk fitting failure I experienced. The proof to that was the grease that flowed back out of the bolt through the zirk fitting installation hole on the bolt head.
NOTE: If you are reading this and say " duh, everyone knows this. " pleas note. You are wrong as I did not know this. It was not mentions in the instructions from the manufacture, there were no warnings.
Clearly the manufacturer ASSUMED everyone knows this, hence their very vaguely writing instructions. I told them that this information and warning should be in the instructions so that people like myself, who have never installed graseable shackles can be informed.
I will end by saying this .... As I was doing this install, I kept thinking to myself .... " how is this going to work? when I service them, where will the old grease exit so that I can confirm they are full of new grease. " I was thinking along the lines of other serviceable components. But I continued on, following the instructions provided to me by the manufacturer, and now realize that doing so was a mistake. I should have called them when I first wondered about servicing them.
Another LESSON LEARNED!!!!
Who knows maybe a newbe will learn something from this post. At least that my hope and why I posted this hear because ...... any man can learn from his own mistakes, a wise man learns from the mistakes of others!