SPC Light Racing UCA - Under Boot Lube
After installing the Light Racing UCA over a year ago, I have been curious about how I would "lube" the ball joint given there is no access.
If any of you have these, you notice that the bottom of the boot (where it connects to the spindle) is not 100% tight around the ball stud. I have had some (slight) concern about crud getting in there in muddy conditions. I have been looking for a way to pump chassis grease up into the joint keeping the boot full of fresh grease and preventing crud from filling the void in the boot.
Not a very good pic, will take one when it stops pouring rain. But, you can see the boot and get the idea. The boot is sealed on the top side at the ball, and is fairly tight at the bottom around the stud, but there is some play in the boot where a gap could allow crap to get up inside the boot.
To lube it I ended up getting one of these:
http://www.supplybuy.com/products/570-05-037-plews-grease-gun-accessories-05-grease-injector-needle
Last weekend when I was changing the oil and lubing the drive shaft UV joints I used the needle to inject grease up inside the boot - I was able to carefully shove the needle under the boot from the front and then from the back and was able to get a few pumps of grease up in each joint's boot. Hopefully this will help keep fresh grease in there.
The needle is like a horse-injection needle, and fits under the boot - I did not penetrate the rubber on the boot, I was able to carefully slip it up under the bottom on the boot where there is a small opening at the stud.
I am not sure why these boots are not wire-tied like the factory OEM boots.