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I am dong the axle vent mod. The valve has been soaking in WD 40 for a few days in anticipation of removing it. Well, today I tried to remove it and it wouldn't budge and then the bolt started to round off. I can remove it for sure if I wanted to (vise grips), but what if it breaks which looks like where this is heading? I've already blown a pinion seal so I really want to do this but not at the cost of a broken valve. Has anyone snapped it off and what did you do?
 

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I didn't even bother to use any penetrating agent, but my vent valve came right off. Have you tried using a deep socket to get more bite? That might keep anything from snapping. Hell, even if you don't have a deep socket, a regular socket and the vise grips are better than just the vise grips....
 

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Heat It With A Small Micro Torch, And If It Snaps Out. Drill And Tap It Out With Grease On The Drill And Tap To Catch Metal Shavings....any That Go Down Will Hit The Magnet And Stay
 

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I hear ya on the tight issue. I thought the same thing as you, but it did thread out and I did'nt soak mine. If it breaks I'm guseein you'll have to drop the axle to get that out. Good luck.
 

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I am dong the axle vent mod. The valve has been soaking in WD 40 for a few days in anticipation of removing it. Well, today I tried to remove it and it wouldn't budge and then the bolt started to round off. I can remove it for sure if I wanted to (vise grips), but what if it breaks which looks like where this is heading? I've already blown a pinion seal so I really want to do this but not at the cost of a broken valve. Has anyone snapped it off and what did you do?
If it breaks, you can always remove the threaded end thats left in the axle hsg with an easy out.
Using little heat around the fitting wouldn't hurt either.
 

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pop the rattle cap off it and slide a hose on it done.
 

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Yes, you can just pop the cap off, remove the plastic one-way valve, then throw on a hose and clamp it down. The length of valve stem you have to clamp down onto isn't alot, but it is enough to work.
 

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post pics
 

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Did you use a open end wrench to try to remove the vent. At least use the 12 point boxed end. once it starts to round you sould drop a 6 point socket on it. If you can not get a socket over it, used a flared nut wrench, at least it will grab 5 points of the hex. open end wrenches are natorious for rounding tight nuts.

All that said, just pop the top off the vent cap. We always hear of ordering a toyota barbed fitting but my Toyota buddy ordered a nissan vent and popped the cap off for this vent line mod.
 

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pop the rattle cap off it and slide a hose on it done.
I've been saying this for years and no one seems to believe it is that simple.

I added a small hose clamp to keep it in place and a filter on the other end of the hose. Routed up behind my passenger tail light and zip tied it into place, took about 10 min.
 
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