Vacuum Leak
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From: Morehead, Ky.
Vacuum Leak
Need opinions.
I replaced the left front hub a couple of years ago, all has been well, but now I have a vacuum leak. I have traced it to the left front.
I had a hub lock black o ring leaking a little grease down the out side of the wheel, so I replaced that seal. (Diesel Orings).
I am going to have to remove the hub to put the other seals in, so my question is, do I go ahead a replace the big axle seal while there?
Can the axle seal be pushed in too far? I think I read that the factory tool has a lip on it.
I used the LOWE'S built tool.
Thanks to all. Jim
I replaced the left front hub a couple of years ago, all has been well, but now I have a vacuum leak. I have traced it to the left front.
I had a hub lock black o ring leaking a little grease down the out side of the wheel, so I replaced that seal. (Diesel Orings).
I am going to have to remove the hub to put the other seals in, so my question is, do I go ahead a replace the big axle seal while there?
Can the axle seal be pushed in too far? I think I read that the factory tool has a lip on it.
I used the LOWE'S built tool.
Thanks to all. Jim
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Joined: Jan 2011
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From: Puget Sound
Both my front wheels had leaks at one time, it was the last couple of inches of tubing with cracks/tears. I cut off the last two inches and re-installed - all good. This may or may not be your issue.
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From: Morehead, Ky.
Thanks Tugly. I had read your thread and had tried that in my testing. I have cut off a little on both hoses, plugged each side one at a time.
It only happens when 4x4 switch is used, and the pump immediately starts and runs for 2 minutes.
Plugged the left hose, and now I can cycle the switch 2 times before the pump starts and it only runs for about 30 seconds. Hey you are up early.
It only happens when 4x4 switch is used, and the pump immediately starts and runs for 2 minutes.
Plugged the left hose, and now I can cycle the switch 2 times before the pump starts and it only runs for about 30 seconds. Hey you are up early.
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From: Puget Sound
It's a curse (or blessing). I wake up between 3:00 and 3:30 and the alarm is set for 4:00. I miss out on the evening posts here and I don't get to see fireworks on the 4th because I go to bed so early. Quite the party animal, eh?
About the vacuum, I haven't had issues with the hubs (yet) - but I did notice how clean they are (on mine). I don't yet know how to lube them, but I know a heavy grease will not let them work because vaccum is not a big enough force to override the friction. I know many have gone to the Warn hubs, but I really like the ESOF feature - so that wouldn't be for me. Have you tried a temorary cap of some sort with the hub removed? I don't know if a PVC plumbing fixture will fit over the hub seal, or if something else would work - but it would be an interesting test.
About the vacuum, I haven't had issues with the hubs (yet) - but I did notice how clean they are (on mine). I don't yet know how to lube them, but I know a heavy grease will not let them work because vaccum is not a big enough force to override the friction. I know many have gone to the Warn hubs, but I really like the ESOF feature - so that wouldn't be for me. Have you tried a temorary cap of some sort with the hub removed? I don't know if a PVC plumbing fixture will fit over the hub seal, or if something else would work - but it would be an interesting test.
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From: Morehead, Ky.
One thing I tried when I found the leak to the outside, was to remove the Hub cover, and cleaned the seal seat on the hub and the cover. I applied a light coat of grease on the seal, and it helped a lot.
This was why I ordered some seals from Bob @ Diesel O rings.
I have been retired now for 12 years and I still wake up at 5:O'clock each morning.
This was why I ordered some seals from Bob @ Diesel O rings.
I have been retired now for 12 years and I still wake up at 5:O'clock each morning.
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From: Morehead, Ky.
Well: I have been doing some checking this A.M. before it gets too hot, and I may have found the cause of my seal failure.
Pulled the Hub Cover and then the washers, and there is no snap ring on the axle.
I may have failed to install it, when I installed the hub and or ball joints. I am guessing that the shaft can move around a lot more and has ruined the seal.
I would hate to have to admit to a mistake!!!!! I am a pack rat, so I thought I would have saved it, but it is not in my truck junk.
Leaving shortly to stealership for new seals and snap ring.
Might wait a couple of days until it gets out of the 90's and 100's before I pull everything, but I'll be ready
Pulled the Hub Cover and then the washers, and there is no snap ring on the axle.
I may have failed to install it, when I installed the hub and or ball joints. I am guessing that the shaft can move around a lot more and has ruined the seal.
I would hate to have to admit to a mistake!!!!! I am a pack rat, so I thought I would have saved it, but it is not in my truck junk.
Leaving shortly to stealership for new seals and snap ring.
Might wait a couple of days until it gets out of the 90's and 100's before I pull everything, but I'll be ready
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From: Morehead, Ky.
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From: Morehead, Ky.
Thanks Tugly, Yes, I had given that some thought, and I may run down the road 30 miles to another dealer. I might just call the ford dealer that's on here, and have them mail one to me.
I do not have much of a supply here, like Fastenal etc. Small Eastern Ky College town.
I do not have much of a supply here, like Fastenal etc. Small Eastern Ky College town.
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From: Morehead, Ky.
I found 1 in my junk box, and it will fit without the washers in. It goes into the slot and will rotate fairly easily.
When I put the washers back in, it doesn't want to go back far enough to snap in. Pushed axle out with OAK block driven in between axle housing and U Joint.
Started getting hot again, so it is off to Fastenal shortly. Thanks Jim
When I put the washers back in, it doesn't want to go back far enough to snap in. Pushed axle out with OAK block driven in between axle housing and U Joint.
Started getting hot again, so it is off to Fastenal shortly. Thanks Jim
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From: Morehead, Ky.
New seals installed today, I haven't really checked to see if I have completely cured my problem. It seems to be still using too much vacuum per cycle.
I'll be checking farther tomorrow.
I'll be checking farther tomorrow.
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From: Morehead, Ky.
After checking farther, I found the left front which I had just resealed was still leaking.
Started searching on FET for help.
Reread Guzzles hub rebuild, and it hit me that I had not used white grease on the hub seal.
Got some white grease and that seemed to have stopped the leak, at least for now. I then pulled the right side and did the same. I will post again if anything goes awry. Jim
Started searching on FET for help.
Reread Guzzles hub rebuild, and it hit me that I had not used white grease on the hub seal.
Got some white grease and that seemed to have stopped the leak, at least for now. I then pulled the right side and did the same. I will post again if anything goes awry. Jim