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Levitation
Joined: 09 Aug 2009
Posts: 289
City/Region: Hemlock
State or Province: MI
C-Dory Year: 2009
C-Dory Model: R-25 Tug
Vessel Name: CHARLOTTE ANN
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 Posted: Fri Aug 13, 2010 7:25 am Post subject: |
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I agree those numbers look high... With the R25 on a long tow my hubs are usually 8 or 10 degrees above ambient temperature and I can definitely hold the hub without burning my fingers... 130-140 is too hot to touch...
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Matt Gurnsey
Dealer
Joined: 11 Nov 2008
Posts: 1532
City/Region: Port Orchard
State or Province: WA
Photos: Kitsap Marina
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| Posted: Fri Aug 13, 2010 1:29 pm Post subject: |
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Keep in mind that disc brake trailers may run slightly hotter. In checking with our Service Manager John, he says that temps as high as 180 would be the upper limit of normal.
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Matt Gurnsey
Kitsap Marina
www.kitsapmarina.com
360-895-2193
(888) 293-7991 |
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localboy
Joined: 30 Sep 2006
Posts: 4673
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
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| Posted: Fri Aug 13, 2010 2:04 pm Post subject: |
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| Quote: | | It’s good to establish a reference point for your trailer temp readings by repacking and/or re-greasing the bearings to see how they perform during normal trailering. |
OK Sneaks. Thanks. I have no base-line and wondered what others have seen. That's why I decided to take the thermometer w/ me this time. I do the same w/ my air-cooled VW. I use the gauges as a base-line; not god speaking. I like being prudent/logical but dislike being paranoid. 
I'm gonna do a complete re-pack on all four, probably with a marine grade bearing grease. Right now they are packed with GL2 lithium grease (came from King that way) and I know you're not supposed to mix two different complexes in a bearing.
I've already been stuck on the side of I-5 w/ a flat and no spare (don't ask  ) and I don't wanna experience that again due to a hub.
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"We can go over there...behind the 'little one'....."
Wife to her husband pointing @ us...from the bow of their 50-footer; Prideaux Haven 2013 |
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localboy
Joined: 30 Sep 2006
Posts: 4673
City/Region: Lake Stevens via Honolulu
State or Province: WA
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: 'Au Kai (Ocean Traveler)
Photos: 'AU KAI
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| Posted: Fri Aug 13, 2010 2:08 pm Post subject: |
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| Matt Gurnsey wrote: | | Keep in mind that disc brake trailers may run slightly hotter. In checking with our Service Manager John, he says that temps as high as 180 would be the upper limit of normal. |
Wow. I would have said that was too hot, but he obviously has more experience/knowldege than me. Mahalo, Matt. I'm still following up w/ King per your recomendation and I'll do a yearly re-pack. |
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Matt Gurnsey
Dealer
Joined: 11 Nov 2008
Posts: 1532
City/Region: Port Orchard
State or Province: WA
Photos: Kitsap Marina
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| Posted: Fri Aug 13, 2010 5:54 pm Post subject: |
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180 would probably be after lots of braking and on a hot day, not what I would shoot, for.  Just didn't want you to panic  with 125 ish temps. The vented rotors cool best when moving faster, too. |
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damason
Joined: 02 Dec 2007
Posts: 184
City/Region: Valparaiso, Florida
State or Province: FL
Photos: CHARITY
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| Posted: Fri Oct 29, 2010 6:33 pm Post subject: trailer with different hub temperatures |
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I have a Float-On trailer for my CD-25. After towing about 10 miles the starboard two hubs are slightly warm. The port forward hub is cold and the port rear hub is much warmer. I pulled the port rear hub today and checked for wear. Everything looks good. I believe my hubs are Posi Lube. I re-assembled and packed this hub. I inserted grease to fill the other three hubs. After a test run of several miles the temps are about the same as before (warm, warm, cold, much warmer).
What I think is that on the starboard hubs the castellated nuts are set right. I think that the port forward castelated nut needs to be tightened 1/6 turn to bring up the temperature. And I think that the port rear castelated nut needs to be loosened 1/6 turn to lower the temperature. I feel that after trailering a distance all hubs should be about the same temperature and about 100 to 110 degrees.
Does this make sense? Any advise or observations?
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Once a C-Brat - Always a C-Brat! |
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Notayot
Joined: 03 Feb 2005
Posts: 122
State or Province: WA
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: Notayot (sold 2/2018)
Photos: Notayot
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| Posted: Sat Oct 30, 2010 12:24 am Post subject: |
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I have the posi-lube axles on my trailer. After 100+ miles (and all checks along the route) at 55-60 mi/hr, all 4 hubs run slightly warm to the touch, and no warmer than the tires themselves. Most all tows are 100+ miles with perhaps 5,000 miles on the trailer, and I re-grease the axles once or twice per season. I have never re-packed the bearings, although I do take the hubs apart to inspect the bearings every other year. I have disc brakes on all four wheels, and all launches have been in salt water.
All of my previous boat trailers have used Bearing Buddy with similar temps, but more work with re-packing and adding grease before each launch.
I have the same type axle on a travel trailer with drum brakes, and it performs similarly. I towed it 9,500 miles (Port Angeles WA to the East Coast and back, and I greased them with the zerk fittings once during the trip.
I like this type of lube system.
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