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10-05-2023, 03:00 PM
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#1
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Seasoned Camper
Join Date: Apr 2015
Location: Thousand Oaks
Posts: 53
M.O.C. #17252
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Fluid leak on wheel
Hello:
Just on the way out for a short trip with our 3100rl 2013. Found a leak on the hub of my front right tire. A bit nervous about how serious this is, but I probably won't travel more than 120 miles. It is Friday and no way I can find anyone that can work on it. Most of the brakes shops won't look and Rv repair shops are backed up for months.
I attached what I am looking at. Any thoughts?
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10-05-2023, 03:07 PM
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#2
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Montana Master
Join Date: Mar 2019
Location: Milwaukie, OR
Posts: 1,470
M.O.C. #23668
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When was the last time you packed the bearings? Old grease, or overheated grease, can liquify and that might be what you're seeing. You might need new bearings and seals, properly greased and seated.
__________________
Jeff & Sandi (and Teddy - 7lb Schnorkie)
2018 Montana HC 305RL / HW Progressive EMS
2015 RAM 3500 Laramie Longhorn Crew Cab 4x4 DRW / Demco Recon Hitch on RAM Puck Ball
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10-05-2023, 03:24 PM
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#3
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Montana Fan
Join Date: Mar 2021
Location: Western NY
Posts: 491
M.O.C. #28430
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Disc or drum brakes?
Greased bearings or oil bath?
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, TST 507 TPMS, X-Factors, disc brakes
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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10-05-2023, 04:11 PM
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#4
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Seasoned Camper
Join Date: Apr 2015
Location: Thousand Oaks
Posts: 53
M.O.C. #17252
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The bearings were greased about 18 months. The brakes are disc
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10-05-2023, 04:34 PM
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#5
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Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,702
M.O.C. #12947
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When we had discs installed, the hub has a plastic cover, and if that cracked, it would leak grease.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
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10-05-2023, 06:26 PM
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#6
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Montana Master
Join Date: Oct 2014
Location: Hagerstown
Posts: 866
M.O.C. #16013
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That wheel has been abused I think I would be more worried about the crack in the wheel webbing in the second picture. That would be a no go for me until fixed.
__________________
2018.5 3791 Rear Den Montana, on the lake  no 3rd A/C, Mini Split, just do it
Electric Brakes  ..... Disk Brakes, it`s the only way
F350 Ford Dually 4:10`s w/bags (payload 5595 lbs) Sumo Springs 63 gal aux tank
Reese Goosebox Mor/Ryde SRE 4000 X Factors Monroe shocks.... real smooth ride
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10-05-2023, 06:27 PM
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#7
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Montana Fan
Join Date: Mar 2021
Location: Western NY
Posts: 491
M.O.C. #28430
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My disc brakes have a plastic cover on the end of the hub like Bob's above. Could be cracked. Also, the plastic covers do double duty as covers for an oil bath set up and they have a rubber plug in the center where you would add oil, the plug may have dried out and/or cracked to the point that it is weeping some oil that has separated from the grease.
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, TST 507 TPMS, X-Factors, disc brakes
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
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10-11-2023, 05:50 PM
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#8
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Montana Fan
Join Date: Oct 2004
Location: San Jose
Posts: 389
M.O.C. #2277
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Could be a couple of things
I'm not sure if that line on the wheel is a crack. A fingernail will tell the story. If it's cracked even a tiny bit replace it. You don't want to find out how much damage a broken wheel can do to your rig.
Wet bearings: most likely a bad seal. I think the rubber plug is much less likely to leak even if it goes bad....unless the hub was overfilled. But for sure check it out.
Disc brakes: does it smell like brake fluid? Bad caliper piston seal, loose brake line - but that would most likely be all over the other side of the tire and the caliper.
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