The Return of BIGGER Black

Andy5160 said:
How much space you need to clear the diff cover?
May be clamp with just the bolt going straight into it will work.
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That might work actually, talked to Jeremy this am and gonna try rotating clamp down first, then diff cover if it still doesn't clear, then we’ll see where we stand, maybe change clamp after that.
 
benatc1 said:
Alright, back in the ground and rolling, think I got just about all the air out of it, felt great on the test drive, was pretty wild how responsive it is compared to how it was. I am running into a bit of a steering range issue, with how the attachment on the tie rod wants to sit, it hits the diff cover, I tried rotating it up but then the ram contacts the underside of the track bar bracket when turning passenger, so for now I have the steering bumps out and it leaves me about one inch of ram cycle on each end, which I really don’t like the feeling as I know it’s still pushing and you can feel it pushing but you barely feel it reach its end point.

I’m curious what you all would recommend, I’ll try to get a better pic tomorrow, but it’s pretty solid contact on the diff cover if I let it go that far. Was thinking I could go back to factory diff cover and see, or maybe a different tie rod clamp, also I’ve remembered reading about caster on here and Psc but not sure, so curious of any thoughts around caster in general or if it would help alleviate this issue and use the majority of my range. Pics don’t show the contact but just the set up. View attachment 432489View attachment 432490View attachment 432491View attachment 432492
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nice work!
Does the Revolution diff cover you have stick out further than the stock cover?
 
Noticed an interesting sound yesterday and confirmed this am when I started my jeep, I think it’s coming from my PSC Steering Pump or box, but it’s a fairly loud “burp” sound, almost like an arb compressor running, was Loud for about 2 seconds and then faded over the next 3-5 seconds, I realized I have heard this before about 3 weeks ago and I thought my air compressor switch was tripped in the back, but that time was a very quick came and gone sound.

It’s 18 degrees this am and I usually remote start so haven't heard it, so not sure how long it’s been going on. I heard it yesterday at cold start and then It’s was totally fine and quiet for the rest of the day on restarts and drove fine, confirmed the sound this am with the cold start. I’ll probably text you @Disciple Off Road this am but figured someone here may have heard/seen this before, do I have air trapped in my pump? Am I maybe sucking air in only when it’s cold?

I would say my pump sounds fine after this noise dissipates but idk, sometime I can hear it quietly “circulating” but nothing loud or squeeling, and nothing that has really changed, Only thing I didn’t check this am was if the reservoir was low after sitting all night, but it nice and full now and yesterday when it was warm. Im pretty confident the sound is coming from the driver side. Any help would be greatly appreciated!
 
Definitely check the reservoir. Fluid should be sitting just above the plate. I assume you have the re-breather on it too? If so, I would check it to make sure it's still mounted properly, top on and without any pinches in the line.
 
wayoflife said:
Definitely check the reservoir. Fluid should be sitting just above the plate. I assume you have the re-breather on it too? If so, I would check it to make sure it's still mounted properly, top on and without any pinches in the line
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Reservoir was full, about and inch from top after the jeep was warm, I’ll check tomorrow when it’s cold again, should there be much fluctuations when it’s cold/warm with fluid? I assume it’s expands when hotter.

I’ll definitely check my re-breather too and make sure it’s good.
 
benatc1 said:
Reservoir was full, about and inch from top after the jeep was warm, I’ll check tomorrow when it’s cold again, should there be much fluctuations when it’s cold/warm with fluid? I assume it’s expands when hotter.

I’ll definitely check my re-breather too and make sure it’s good.
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is there an inline cooler? how's it mounted?
 
jeeeep said:
is it a single pass or dual pass?

I have the dual pass on my JKU, but your description sounds similar, loosen the cooler and get the end that flows back into the reservoir higher than the inlet, and do the bleed process.

This should burp the air that can get trapped in the cooler
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I’ll have to check and see if it’s dual or single, not sure, but I’ll definitely give that a try
 
benatc1 said:
Reservoir was full, about and inch from top after the jeep was warm, I’ll check tomorrow when it’s cold again, should there be much fluctuations when it’s cold/warm with fluid? I assume it’s expands when hotter.

I’ll definitely check my re-breather too and make sure it’s good.
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Yes there will be fluctuations when the fluid is warm vs cold. Like tire pressures always check fluids when cold
 
Just an update, this am, I checked the fluid level and it was certainly above the plate and about an inch and half below the threads on the inside- after sitting all night and cold. I checked the rebreather and took it apart, wiped off the inside valve, to make sure it was all clear and I think it looked fine. So I started it up and just a real quick burp sound that lasted about a second. I checked the fluid level with it running cold and kind looked like the fluid was more full in the reservoir than before starting. Haven’t had a chance to try Joel’s bleeding idea yet. I did noticed before starting, when unscrewing the cap on the reservoir there was like a pressure drawing sound that wasn’t like air pushing but kinda hard to explain. Maybe that normal, idk.
 
benatc1 said:
Just an update, this am, I checked the fluid level and it was certainly above the plate and about an inch and half below the threads on the inside- after sitting all night and cold. I checked the rebreather and took it apart, wiped off the inside valve, to make sure it was all clear and I think it looked fine. So I started it up and just a real quick burp sound that lasted about a second. I checked the fluid level with it running cold and kind looked like the fluid was more full in the reservoir than before starting. Haven’t had a chance to try Joel’s bleeding idea yet. I did noticed before starting, when unscrewing the cap on the reservoir there was like a pressure drawing sound that wasn’t like air pushing but kinda hard to explain. Maybe that normal, idk.
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No noticeable air bubbles? you may have too much fluid and the sound you hear is the valve releasing pressure as the level rises, I'd try removing a small amount of the fluid if once it's warmed up if it's higher than the fill level
 
jeeeep said:
No noticeable air bubbles? you may have too much fluid and the sound you hear is the valve releasing pressure as the level rises, I'd try removing a small amount of the fluid if once it's warmed up if it's higher than the fill level
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Yea no bubbles, that I can see, but I’ll give that a shot too.
 
Few updates- #1 I’ve had a passenger side axle seal leak since doing my front shaft, does anyone know if there is a seal on the differential at the passenger side of the tube or just more outboard by the FAD access point?

But more importantly I’ve been monitoring my fluid level and I noticed my front diff oil smelled really burnt, so I decided to change this weekend and here is how black it was. Probably only like 4k miles on this, no sign of metal and the diff looked fine but man it smells rancid. I filled up back up with fresh fluid and am going to run it a bit and monitor diff temp but seems real odd it would look and smell this bad in short time but gonna keep a close eye on it, any thoughts?
IMG_4530.jpeg
IMG_4528.jpeg

Don’t mind the random grass that got in there afterwards lol..

Also, I think I narrowed down my noise at cold start from the steering - this fitting popped off it was so loose when I opened the reservoir last night..Tightened it down and started this am with no noise, gonna give it a try tomorrow am too, but hopefully the root of my sounds.

IMG_4535.jpeg
 
benatc1 said:
Few updates- #1 I’ve had a passenger side axle seal leak since doing my front shaft, does anyone know if there is a seal on the differential at the passenger side of the tube or just more outboard by the FAD access point?

But more importantly I’ve been monitoring my fluid level and I noticed my front diff oil smelled really burnt, so I decided to change this weekend and here is how black it was. Probably only like 4k miles on this, no sign of metal and the diff looked fine but man it smells rancid. I filled up back up with fresh fluid and am going to run it a bit and monitor diff temp but seems real odd it would look and smell this bad in short time but gonna keep a close eye on it, any thoughts?
View attachment 438417
View attachment 438419

Don’t mind the random grass that got in there afterwards lol..

Also, I think I narrowed down my noise at cold start from the steering - this fitting popped off it was so loose when I opened the reservoir last night..Tightened it down and started this am with no noise, gonna give it a try tomorrow am too, but hopefully the root of my sounds.

View attachment 438418
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Do you have the one piece passenger axle shaft or still the two piece? If one, maybe it’s just because the gears are running full time like the rear. I believe there’s only the one outboard on the FAD box. When I had the one piece Carbon shaft, my seal leaked there all the time and I replaced it twice. It seems the JL’s will leak even with a good seal when a one piece shaft is used.
 
benatc1 said:
Few updates- #1 I’ve had a passenger side axle seal leak since doing my front shaft, does anyone know if there is a seal on the differential at the passenger side of the tube or just more outboard by the FAD access point?

But more importantly I’ve been monitoring my fluid level and I noticed my front diff oil smelled really burnt, so I decided to change this weekend and here is how black it was. Probably only like 4k miles on this, no sign of metal and the diff looked fine but man it smells rancid. I filled up back up with fresh fluid and am going to run it a bit and monitor diff temp but seems real odd it would look and smell this bad in short time but gonna keep a close eye on it, any thoughts?
View attachment 438417
View attachment 438419

Don’t mind the random grass that got in there afterwards lol..

Also, I think I narrowed down my noise at cold start from the steering - this fitting popped off it was so loose when I opened the reservoir last night..Tightened it down and started this am with no noise, gonna give it a try tomorrow am too, but hopefully the root of my sounds.

View attachment 438418
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Not sure about the gear oil, but I have had that little fitting on the PSC reservoir seep fluid. I ended out sealing it with the stuff below. Hasn’t leaked or loosened up since.

IMG_7422.jpeg
 
Mike Pierson said:
Do you have the one piece passenger axle shaft or still the two piece? If one, maybe it’s just because the gears are running full time like the rear. I believe there’s only the one outboard on the FAD box. When I had the one piece Carbon shaft, my seal leaked there all the time and I replaced it twice. It seems the JL’s will leak even with a good seal when a one piece shaft is used.
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It’s a one piece shaft, but the 392 pretty much AWD so front is always turning. It has the fad cut out, used to be a 2 piece shaft like every other axle but not motor/fork. I’ll swap that seal out and see if I get lucky
 
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