74weld now on the B6G forum! Page 31

[ScLeCo]

I had a lower ball joint that I did not seat properly on my LF. I saw it when I put it on the alignment rack after the install. Had i missed that I probably would have wobbled out the LF "upright" as he calls them. Just the stuff that can happen w/a installl like this...sorta like putting the vent hose in the wrong hole. I'm not claiming to be any kind of genius at this, I'm learning too. You can't blame Quinn for me leaving a ball joint loose, or putting a vent hose in the wrong hole tho...some of this stuff we gotta learn to do

Well I learned a lot today.

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[SierraBronco]

I had a lower ball joint that I did not seat properly on my LF. I saw it when I put it on the alignment rack after the install. Had i missed that I probably would have wobbled out the LF "upright" as he calls them. Just the stuff that can happen w/a installl like this...sorta like putting the vent hose in the wrong hole. I'm not claiming to be any kind of genius at this, I'm learning too. You can't blame Quinn for me leaving a ball joint loose, or putting a vent hose in the wrong hole tho...some of this stuff we gotta learn to do

Certainly not. That’s why I specified bad installs. Unless of course the instructions are backwards for wheel speed sensors. Or no specific direction is given on where to put the breather and the two holes are interchangeable. Because other than issues caused specifically by the installer like using different brake lines not provided with the kit or forgetting a crucial washer, it seems like you guys with the original versions aren’t having any problems. I also don’t blame him for the broken axle shaft. It’s an axle shaft. They break. Especially with 40’s on heavy rigs.

Now as far as not giving any guidance on which aftermarket parts are compatible with their portals, who gets that liability? I recognize the magnitude of trying to compile parts/drawings from allllllllll the different aftermarket manufacturers. It would be ridiculous. But to market your product as the ultimate bulletproof bolt on accessory only to have it be broken by X part that was never a problem with the factory steel knuckle, that might upset some consumers. But to limit their options by saying it only works with factory components will limit sales. So…you’re going to need an approved list or just prepare to give people new parts. Not exactly cool to tell them after the fact that a part isn’t approved.

 

[Fordified1]

We seem to have become distracted from the original issue that sparked off the experimentation with dual breather lines running to their own catch cans in attempt to mitigate pressure-the oil leaking out of the portal box and into the axle housing. 74w came up with a fix for the fronts leaking from the same seal and provided it if you asked for it. Nothing for the rears that we have been told so far as I know.

The portals have such a small cavity inside I can’t imagine anything expanding so fast that you need more than one small vent.
the portals on my side by side aren’t even vented, and I have run it fast for many miles. (50 not 80) That being said it did push a seal out once and we were thinking about venting them but found the cause was me over filling with oil.
If the vent is high enough I see no reason for a check valve. Maybe a filter for dust.

 

[Bmadda]

it seems like you guys with the original versions aren’t having any problems.

That's why I'm here...doesn't make much sense to me that you guys are having the problems you are having

Now as far as not giving any guidance on which aftermarket parts are compatible with their portals, who gets that liability? I recognize the magnitude of trying to compile parts/drawings from allllllllll the different aftermarket manufacturers. It would be ridiculous.

You kinda answered your own question there. The race industry works this way. It's impossible to fully test every possible combination. If you are risk-adverse, you gotta stick w/what you know works

 

[SierraBronco]

The portals have such a small cavity inside I can’t imagine anything expanding so fast that you need more than one small vent.

I completely understand. That said, there’s no denying that the oil from the portal is going in to the axle. I guess we could simply continue running things exactly the same and say “dangit. We didn’t change anything. Why does this keep happening? It should have fixed itself by now. Must be the loctite.” Or, look at what’s available and try something.

 

[Fordified1]

I completely understand. That said, there’s no denying that the oil from the portal is going in to the axle. I guess we could simply continue running things exactly the same and say “dangit. We didn’t change anything. Why does this keep happening? It should have fixed itself by now. Must be the loctite.” Or, look at what’s available and try something.

Hey I didn’t say don’t try stuff. Just it seems illogical (thinking logically gets me in trouble with my wife all the time) Maybe location of the single vent needs to be looked at and changed. Or quit driving it upside down.

 

[SierraBronco]

You kinda answered your own question there. The race industry works this way. It's impossible to fully test every possible combination. If you are risk-adverse, you gotta stick w/what you know works

Currently, beyond running stock, we have no list of aftermarket components compatible with the aluminum portals. But at least the messaging has changed from “these are race proven and bulletproof” to “okay well…maybe bulletproof was a stretch…”

 

[SierraBronco]

Hey I didn’t say don’t try stuff. Just it seems illogical (thinking logically gets me in trouble with my wife all the time) Maybe location of the single vent needs to be looked at and changed. Or quit driving it upside down.

“it’s illogical to try anything but the things I have determined you should try”

well no wonder that gets you in trouble with your wife

 

[Fordified1]

Hey I didn’t say don’t try stuff. Just it seems illogical (thinking logically gets me in trouble with my wife all the time) Maybe location of the single vent needs to be looked at and changed. Or quit driving it upside down.

Or rig up an expansion tank type deal that will pull the oil back into the portal when it cools.

 

[SierraBronco]

Or rig up an expansion tank type deal that will pull the oil back into the portal when it cools.

just need to start running the same oil in the portals and differential! Remember-that’s where the oil is going. We’ll just make a recirculation circuit between the portals and axle housing. Get rid of the axle shaft seals completely

 

[5GENIDN]

Or rig up an expansion tank type deal that will pull the oil back into the portal when it cools.

Yea... BUT it SEEMS that currently the DUAL venting is WORKING..... I understand it can work like a pump.... That really needs to be watched carefully..... BUT it Appears to be working..... MAY BE NOT under all conditions, further testing really needs to be done..... My original thought of the dual vent was "Teeing" the original line down close creating a significant increase in cross-sectional area... this would create a large break in back pressure capillary action I was theorizing.... but these guys plumbed into the second port on the top of the box...... I do think pumping is a concern to be watched..... Hell I would keep that extra plug and some oil with me just in case..... but so far????

 

[Fordified1]

just need to start running the same oil in the portals and differential! Remember-that’s where the oil is going. We’ll just make a recirculation circuit between the portals and axle housing. Get rid of the axle shaft seals completely

OK, my bad for not understanding the problem. I thought you had the portals vented to the axle housing. This thread has so many pages and I missed a bunch. Seems more likely that the problem is the axle housing vent. When the axle cools it’s sucking oil from the portals. The portal vent allows this to happen and the axle vent has a restriction or check valve.

 

[5GENIDN]

OK, my bad for not understanding the problem. I thought you had the portals vented to the axle housing. This thread has so many pages and I missed a bunch. Seems more likely that the problem is the axle housing vent. When the axle cools it’s sucking oil from the portals. The portal vent allows this to happen and the axle vent has a restriction or check valve.

Actually the pressure has to be in the opposite direction.... The extra pressure is in the portal box pushing the portal oil into the axle. or so it appears.... I am making assumptions based on what I am being told.... I have not laid eyes on any of this other than a few pics. I trust what I am being told. so if the portal oil is actually pushing through the seal into the axle..........

 

[Fordified1]

…. Get rid of the axle shaft seals completely

Only problem with that is if one housing gets contaminated, they all get contaminated. Including metal if something goes down.

 

[SierraBronco]

Yea... BUT it SEEMS that currently the DUAL venting is WORKING..... I understand it can work like a pump.... That really needs to be watched carefully..... BUT it Appears to be working..... MAY BE NOT under all conditions, further testing really needs to be done..... My original thought of the dual vent was "Teeing" the original line down close creating a significant increase in cross-sectional area... but these guys plumbed into the second port on the top of the box...... I do think pumping is a concern to be watched..... Hell I would keep that extra plug and some oil with me just in case..... but so far????

When you pull the portal cases apart you might note that while yes, they look like a gear pump, they lack the tolerances, seals, and appropriate channeling that will make them move fluid as effectively as a gear pump. I’ve literally rebuilt 100’s of gear pumps. And positive displacement pumps. Lobe pumps. Diaghram pumps. Centrifugal pumps. Even a few roller pumps for the really spicy chemicals. Countless pumps capable of pushing 100 gpm at 20,000 psi. And with that experience I can confidently say-it’s the loctite.

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