Newb question: Steering knuckle, how much moly?

[neuroguy]

From the FSM, MA-5, for general maintenance, how much moly do you put into the knuckle? I don't think you'd sit there and pump it 'till grease comes back at you - and put an early death to your seals. So how often do you check'em and how much will you put in? It's not like there is a resevoir you can easily see. Thanks!

[hj60]

This topic has been discussed at length on the 40/55, 60/62 and I'm sure the 70/non-US board as well.
As of me getting rid of my 40 6+ years ago, no consensus had ever been reached.
If you search all the forums, you're bound to find 100s of threads on this.
I stick a small screwdriver in and check for grease.
I've also pumped 1/2 a tube in each side before with no ill effect.
If you go nearly full, you're prolly safe. The seals are not positive sealing. They're designed to ooze a bit.

[Doc]

You're not going to kill your seals by pumping in some grease. UNLESS you create an air tight seal on the fill plug and blow IN the inner oil seal. Not likely.

And no, there is no consensus. If the 'dip test' shows grease, you're good to go IMOP.

[IdahoDoug]

If you have no idea how much is in there, but suspect it's low I'd put a half tube in or so. A properly maintained knuckle gets a dozen squirts at each oil change or so. There's no downside to filling until it pushes the manual grease gun back out as you're not filling it with solid liquid, but an airy mass of pigtail-shaped coils of grease with easily the same volume of air. Try filling a cereal bowl with a grease gun and you'll see what I mean - you'd never achieve much more than 50/50 grease/air because it comes out like silly string. Even if you COULD fill it 100% there's still no downside as the knuckle seals are not air tight and allow continuous seepage by design.

DougM

[neuroguy]

Thanks!!

[Ting]

Is this ok to mix different brand of moly grease? I remember reading about not a good idea to mix different brand name of grease. ????