Too much grease in the slip joint - Toyota FJ Cruiser Forum
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post #1 of 15 (permalink) Old 03-16-2017, 02:29 PM Thread Starter
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Too much grease in the slip joint

Hello I was greasing the shafts after changing differential and transmission fluids (90k miles) and everything was going OK. I fully realize that the slip joints only needs a few squeezes of the grease gun, while the U-joints like to have some grease come out. However, my brain was on autopilot and I started pumping into the forward slip joint, I must have pumped 12-14 times before I realized.

I removed the zerk but nothing came out. The FJ is on 4 jack stands and there is no weight on the front axle, all the tires have been removed; it seems the front slip joint is fully "compressed" in this configuration. Am I OK or should I do something to avoid hydro-lock the slip joint?

PS now that I have the FJ up on jack stands, tires removed, what should I look for as preventive maintenance, other than what's written in the manual?


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as

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post #2 of 15 (permalink) Old 03-16-2017, 02:52 PM
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Re: Too much grease in the slip joint

I did something similar and probably gave it just as many pumps. That was 8 months and 10k miles ago. So far it's been good.

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post #3 of 15 (permalink) Old 03-16-2017, 03:04 PM Thread Starter
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Re: Too much grease in the slip joint

I should add that I "forgot" to grease the shafts for the last... well I cannot really remember. So maybe I'm OK an from now on I will grease more regularly and not add so much grease any more of course.

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post #4 of 15 (permalink) Old 03-16-2017, 03:11 PM
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Re: Too much grease in the slip joint

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I should add that I "forgot" to grease the shafts for the last... well I cannot really remember. So maybe I'm OK an from now on I will grease more regularly and not add so much grease any more of course.
As far as I know, when I did mine a few months back, it was the first time my FJ had ever gotten its shaft lubed I can't guarantee it'll be good but what else could you do short of removing the shaft and cleaning out all the extra grease?

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post #5 of 15 (permalink) Old 03-16-2017, 03:25 PM
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Re: Too much grease in the slip joint

I actually had this happen once while lubing a slip joint on a manual transmission Tacoma pickup, it actually shifted the engine and transmission and my customer couldn't shift into all the gears because of it. I was using an air operated grease gun so it had more power than a hand operated gun. I used a pick and depressed the ball in the grease fitting to bleed some grease out. This only happened to me that one time so it may have been a one time thing since I had lubed many drivelines before and after it.
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post #6 of 15 (permalink) Old 03-16-2017, 03:43 PM Thread Starter
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Re: Too much grease in the slip joint

Well in my case I removed the zerk with a 7mm socket, and nothing came out. But, I do not have the vehicle on its wheels yet and I cannot drive it around

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post #7 of 15 (permalink) Old 03-16-2017, 03:48 PM
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Re: Too much grease in the slip joint

G'day,
I used to think that.... 2-3 squirts .... but about 12 months ago, i filled it deliberately... till old black grease was oozing out past the seal...
didn't hydro lock it..and no rear end bump since....
so I think you would be ok, infact i would suggest if you have not done it in a while, keep filling it till the old is forced out...
Cheers
Baz
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post #8 of 15 (permalink) Old 03-16-2017, 04:00 PM
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Re: Too much grease in the slip joint

I filled mine once upon a time with no ill side effects before I knew..... I like the idea of leaving the zerk out for a while to let any extra grease out if you don't want to pull the driveline.


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post #9 of 15 (permalink) Old 03-16-2017, 04:27 PM
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Re: Too much grease in the slip joint

i just took my fj in for the 50k maintenance, rotation, tires, etc. do you know if the dealership does the greasing on these zerk fittings as part of the maintenance?
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post #10 of 15 (permalink) Old 03-16-2017, 04:31 PM
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Re: Too much grease in the slip joint

Don't worry it's really not meant to be an air tight seal, once the shaft rotates and slides in and out a bit it will work some of the grease out, but is almost sounds like the grease gun ran out before it was packed to the max? I grease mine until it oozes a bit every time. The seal is really for prevention of large amounts of moisture from entering directly as well as dust and debris particles.
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