Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Electronics, Lighting, & Gadgets HRM, GPS, MP3, HID. Whether it's got an acronym or not, here's where you'll find discussions on all sorts of tools, toys and gadgets.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-17-12, 03:48 PM   #1
chandltp
Senior Member
Thread Starter
 
chandltp's Avatar
 
Join Date: Dec 2009
Location: Erie, PA
Bikes: Bacchetta Giro 20, Trek 7000, old Huffy MTB, and a few others
Posts: 1,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
dyno hub connections

I just got a new dyno hub and I was wondering if I need to do anything to waterproof any of the connections.

For instance, I was looking at the holes where the wires enter, and wonder if I should orient then in a way other than straight up. Also, the tail light connections are kind of out in the open and I was wondering if I need to do anything with those. They are B&M lights, if that matters at all.
chandltp is offline   Reply With Quote
Old 03-18-12, 07:47 AM   #2
Grishnak
Senior Member
 
Grishnak's Avatar
 
Join Date: Jan 2010
Location: West Sussex UK
Bikes: Steel Tourer,Recumbent SWB,Steel Road,Flying pigeon with SA 3speed,Raliegh Twentys,Raliegh U.S Cruiser.
Posts: 259
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Excellent thinking.I have not waterproofed anything on my shimano or novatec hubs,bikes live outside,used year round no problems,3 years use.
Grishnak is offline   Reply With Quote
Old 03-18-12, 11:06 AM   #3
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Bikes:
Posts: 14,856
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
wouldn't hurt to put some dielectric grease in the fitting. I generally don't bother, not sure it matters
unterhausen is offline   Reply With Quote
Old 03-18-12, 07:48 PM   #4
Aushiker
Senior Member
 
Aushiker's Avatar
 
Join Date: Jun 2007
Location: Fremantle, Western Australia
Bikes: Surly Long Haul Trucker, Salsa Mukluk, Giant Defy
Posts: 1,044
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
I have thought of waterproofing mine as such but I have moulded some Sugru over them. This makes it much easier to remove the connectors and refit them reducing the chance of pulling a wire out.

My attempt looks pretty bad but the Middle Aged Cyclist whom I got the idea from has done a much neater job of it. I have since learnt that wet fingers makes it much easier to mould the Sugru.


My attempt


Middle Aged Cyclist does a much better job.

Andrew
Aushiker is offline   Reply With Quote
Old 03-19-12, 11:49 AM   #5
pdlamb
Senior Member
 
Join Date: Dec 2010
Location: northern Deep South
Bikes: Fuji Touring, Novara Randonee
Posts: 2,929
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 128 Post(s)
If you have fenders, it helps. I don't worry about any of the light connections, and try to keep the hub connections pointed down so (hopefully) the water will drip out instead of dripping in. So far, so good!
pdlamb is online now   Reply With Quote
Old 03-19-12, 01:54 PM   #6
chandltp
Senior Member
Thread Starter
 
chandltp's Avatar
 
Join Date: Dec 2009
Location: Erie, PA
Bikes: Bacchetta Giro 20, Trek 7000, old Huffy MTB, and a few others
Posts: 1,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Hmm.. you think this would be written down somewhere. I have a few days to flip it over before it rains.. from an aesthetics perspective I like having it straight up. I guess I'll point it down and hope it does something.
chandltp is offline   Reply With Quote
Old 03-19-12, 02:15 PM   #7
chandltp
Senior Member
Thread Starter
 
chandltp's Avatar
 
Join Date: Dec 2009
Location: Erie, PA
Bikes: Bacchetta Giro 20, Trek 7000, old Huffy MTB, and a few others
Posts: 1,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
This was the response from LongLeaf Bicycles (I bought my wheel build and lights from them):

I never have and have used dynohubs in terrible downpours without a problem.
chandltp is offline   Reply With Quote
Old 03-19-12, 03:18 PM   #8
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Bikes:
Posts: 14,856
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
I have ridden for many hours in the rain and my dynohubs have never given me any problems
unterhausen is offline   Reply With Quote
Old 03-20-12, 12:46 PM   #9
siberia37
Member
 
Join Date: Dec 2011
Bikes:
Posts: 27
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Just make sure you don't have any exposed wires that could touch each other and you should be fine. Shorting out a dynamo doesn't hurt the dynamo but it might hurt the light. Liquid electrical tape works well for repairing wires where the insulation got broken or came loose.
siberia37 is offline   Reply With Quote
Old 03-20-12, 12:56 PM   #10
chandltp
Senior Member
Thread Starter
 
chandltp's Avatar
 
Join Date: Dec 2009
Location: Erie, PA
Bikes: Bacchetta Giro 20, Trek 7000, old Huffy MTB, and a few others
Posts: 1,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Hmm.. now I've almost done a full circle thinking I might not do anything.
chandltp is offline   Reply With Quote
Old 03-20-12, 01:11 PM   #11
2_i 
Senior Member
 
Join Date: Sep 2005
Location: Michigan
Bikes: Trek 730, Bike Friday NWT, Brompton M6R*2, Trek 830, Trek 720, Dahon HAT060, Dahon HT060,...
Posts: 1,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Quote:
Originally Posted by chandltp View Post
I just got a new dyno hub and I was wondering if I need to do anything to waterproof any of the connections.
Use dielectric grease.
2_i is offline   Reply With Quote
Old 03-21-12, 06:52 AM   #12
chandltp
Senior Member
Thread Starter
 
chandltp's Avatar
 
Join Date: Dec 2009
Location: Erie, PA
Bikes: Bacchetta Giro 20, Trek 7000, old Huffy MTB, and a few others
Posts: 1,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Quote:
Originally Posted by 2_i View Post
Use dielectric grease.
Here's the wiring instructions for reference (near the bottom of the page).

Since dielectric grease is non-conductive, any suggestion on how I would make sure the connection didn't get too much grease in it?
chandltp is offline   Reply With Quote
Old 03-21-12, 10:31 AM   #13
2_i 
Senior Member
 
Join Date: Sep 2005
Location: Michigan
Bikes: Trek 730, Bike Friday NWT, Brompton M6R*2, Trek 830, Trek 720, Dahon HAT060, Dahon HT060,...
Posts: 1,582
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
Quote:
Originally Posted by chandltp View Post
Since dielectric grease is non-conductive, any suggestion on how I would make sure the connection didn't get too much grease in it?
You just put it on contacts. The connection is there, just as without the grease, but the contact area does not corrode. That is what this grease is made for and you immerse the whole connection area within that grease without a problem.
2_i is offline   Reply With Quote
Old 03-22-12, 05:49 AM   #14
chandltp
Senior Member
Thread Starter
 
chandltp's Avatar
 
Join Date: Dec 2009
Location: Erie, PA
Bikes: Bacchetta Giro 20, Trek 7000, old Huffy MTB, and a few others
Posts: 1,766
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Quote:
Originally Posted by 2_i View Post
You just put it on contacts. The connection is there, just as without the grease, but the contact area does not corrode. That is what this grease is made for and you immerse the whole connection area within that grease without a problem.
OK, I guess I'll have to try it. It just seems like something that's non-conductive could cause a problem if there's too much.
chandltp is offline   Reply With Quote
Old 03-22-12, 10:10 AM   #15
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Bikes:
Posts: 14,856
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
it gets moved out of the way when you mate the contacts. The reason I have some is for my car's spark plug wires. Protecting contacts from corrosion is the intended purpose of dielectric grease.
unterhausen is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 09:45 AM.