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New Axle Seals are seeping....

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
As some of u know I tore into my Alpha a few weekends ago. I replaced the uppers, CV's, and both axle seals. I also drained and put new 75/90w in the front diff. I drove it maybe 50 miles and I had zero leaks or seeps. Today after getting home from work I crawled under it to check something and the LF seal had a little splatter on the diff mount. Checked the other side and it wasn't as bad. Wiped em off and went for a short trip. They both had a small layer of 75/90 all around the lip of the axle seals.... Is this a common thing until the new CV/seal wear in??? I know the old CV's had basically a grove worn into them where the seals were. I'm going to keep an eye on them, but could the cold weather be at fault??? I made sure the diff wasn't overfilled and it was fine. If they need replaced already they're just gonna seep a while lol.
 

08H3

Well-Known Member
Messages
1,370
Location
United States
Did you use the Kent Moore tool when installing the CVs? Could be a tear in the seal from the splines when installing.
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
I lubed the smooth part on the CV and put a light coat of oil on the seals. Slid the CV in making sure the splines never touched the seals. Then when it stopped I lightly tapped the CV's into position using a rubber hammer.
 

USMC_TOP

Well-Known Member
Messages
491
Location
Muir Michigan
No way to install them backwards right? Don't most seals still have those small angled contacts in a spiral around the ID of the seal to keep the lube in while the axel spins right? When I did seals in the past I used wheel bearing grease to lube my new seals. Maybe I was wrong for that but I never had a second leak.
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
Yeah I normally use grease on seals as well. The seals have a metal back and rubber front so you can't really install them wrong unless you absolutely wanted to lol. They were fine for 3 days, left for Cozumel, came back and it was 37F, went to grab GTA V for my PS4 and when I got home I saw the slight seeping. They aren't pouring out, but they aren't dry either.. I used some engine oil to lube them vs install them dry.
 

06 H3

a.k.a. "The Jackal"
Messages
9,506
Location
Meridian, ID
what brand? I noticed that the Orielly seals didnt last long on mine, then I went back to OEM. Some stuff on the H3 you can run any brand, cheap or OEM with no problem. Other stuff requires OEM stuff or else you will have issues, Same thing with the O2 sensor. My Orielly o2 sensor lasted me about a week then the CEL light came back on, replaced it with OEM its been fine for over 6 months.
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
National Brand, and I did all this work because one OEM seal was seeping. Now I have two new properly installed seals seeping and they'll be seeping for a while because I'm not tearing it down anytime soon.
 
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Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
I doubt it, I just think lubing the new seals with oil was a mistake.... Gonna shoot em with some brake clean to see if that will get em to stop seeping.
 

digglesworth

Well-Known Member
Messages
1,789
Location
illinois
I used some synthetic grease on the metal side. Can't remember if I lubed up the rubber part before I put the cv back in. I think I just lubed the cv a little before I stuck it in. With gear oil.... Then just wiped the surface off with a towel. good luck with it... These nuisance things are a real p.i.t.a.
 

MaxPF

AGNTSA
Messages
1,394
Location
The dark side of the globe
I doubt it, I just think lubing the new seals with oil was a mistake.... Gonna shoot em with some brake clean to see if that will get em to stop seeping.

On the contrary, installing the seal dry willl wipe them out faster than anything. I'd definitely make sure your diff vent in clear. Otherwise, pressure builds up as the diff warms (doesn't take much either) and pushes oil past the seals.
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
I'll pull the hose off and take a test drive this evening.

Yeah all the other axle seals I've installed I lubed as well. I crawled under my wife's and the shafts are so rusty right before the seal they've basically sealed themselves lol. I honestly think the smooth clean surface of the new shafts is at fault for the seeping. I'm gonna check the vent line, and just keep an eye on them for now. If they start to gush then yeah time for action!
 

08H3

Well-Known Member
Messages
1,370
Location
United States
I'll pull the hose off and take a test drive this evening.

Yeah all the other axle seals I've installed I lubed as well. I crawled under my wife's and the shafts are so rusty right before the seal they've basically sealed themselves lol. I honestly think the smooth clean surface of the new shafts is at fault for the seeping. I'm gonna check the vent line, and just keep an eye on them for now. If they start to gush then yeah time for action!

I would put a length of known good hose on before the test drive. I had a clutch job earlier this year and the shop forgot to put the vent hose back on. You'll lose a lot of fluid in a hurry.
 

4speedfunk

Well-Known Member
Messages
4,250
Location
Tardville
The line isn't the issue. Its the fitting. Axle vent fittings have very small holes, and they are prone to getting clogged by rust and nasty lube. Like this one...
attachment.php


Grab a piece of welding wire (or a paper clip) and jamb it in there to make sure the hole is clear.
 

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Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
Got home, stuck a small wire down it and nada zip nothing blocked. White Devil might soon be called a Land Rover if it starts leaving puddles haha... Marking it's spot!!!
 

MaxPF

AGNTSA
Messages
1,394
Location
The dark side of the globe
I honestly think the smooth clean surface of the new shafts is at fault for the seeping.

It's not. Smooth surfaces are needed for a good seal and to keep the seal alive. Grooved surfaces leak, and rough surfaces grind the seal lip away, eventually leaking as well.

Don't assume the sealing surfaces on the new parts are correct though. The rear output flange on my t-case was a bit undersize and it leaked like a sieve. Rather than replacing it I installed a Speedi-Sleeve and new seal and it solved the problem. Point is, sometimes parts are just manufactured incorrectly :( Sucks, but I've had it happen on more than a few occasions...
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
Yeah it's just gonna seep for a while. I do not have the time to tear it down again anytime soon with the holidays, and family stuff going on. After I sprayed em down I drove it a few miles and nada zip nothing, but I don't have my hopes up lol. I just can't believe they're leaking. I mean I'm very OCD when it comes to my rigs and doing the job right lol. It's not like the CV's just slid in lol, I had to lube em and tap em in with a rubber hammer (on the end of the CV).

Gonna order about 4 of the seals online at 8.00 each vs 20.00 in the stores around here!
 

digglesworth

Well-Known Member
Messages
1,789
Location
illinois
That's the way to do it.... Stock up... ;). Im waiting to close on a new house. Once I get outta this apartment, I'll have a full basement to start stock piling. Lol
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
They still leak...... I am extremely disappointed in how these seals do anything but seal..... When I order the new ones I'm going with the AC Delco's vs National's and I'm going to pack em with grease and coat the CV with grease as well. If they leak after that I dunno I might trade my Alpha in for an 07 Adventure and call it a day lol. Always the little things in life that just gotta bug the heck out of ya lol.
 
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MaxPF

AGNTSA
Messages
1,394
Location
The dark side of the globe
They still leak...... I am extremely disappointed in how these seals do anything but seal..... When I order the new ones I'm going with the AC Delco's vs National's and I'm going to pack em with grease and coat the CV with grease as well. If they leak after that I dunno I might trade my Alpha in for an 07 Adventure and call it a day lol. Always the little things in life that just gotta bug the heck out of ya lol.

Don't be surprised if the new AC Delco seals are Nationals as well. Along with Chicago Rawhide (owned by SKF) and Timken, National (owned by Federal-Mogul) is one of the largest seal manufacturers. They may be THE largest for automotive seals. Easy way to tell is the color of the conformal coating on the seal's shell. National uses red, CR uses green, and Timken uses orange.

FWIW I have used many National seals without issue. I'm still suspicious that the seal surface on the CVs are the problem rather than the seals themselves. Only way to tell is to measure their OD and runout.
 

Best4x4

Well-Known Member
Messages
1,042
Location
Vidor, TX
Yeah I am thinking the same thing about the CV's myself, but I know several people with Cardone CV's and no issues at all.
 
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