CDI ignition boxes dripping again

Information and questions on GL1100 Goldwings (1980-1983)
  • Sponsored Links
Post Reply
Posts: 144
Joined: Sun Aug 05, 2012 8:46 pm
Location: Milwaukee, Wisconsin
Motorcycle: 1980GL1100 NICE!

CDI ignition boxes dripping again

Post by tunaboy » Mon Apr 14, 2014 3:09 pm

I had CDI boxes melt out the Epoxy about 2 years ago. These were the ones that were with the bike since it was new. I replaced them with used OEM boxes off Ebay and all seemed well for a year. Now I see that the second set is dripping. Anyone know what causes this failure?

User avatar
Johnyy Smoke
Posts: 695
Joined: Sat Nov 26, 2011 6:44 am
Location: Se Minnesota
Motorcycle: 1980 GL1100
Vetter. "Its like Deja Vu all over again".

Re: CDI ignition boxes dripping again

Post by Johnyy Smoke » Mon Apr 14, 2014 4:25 pm

Not sure it is a failure as much as old backing. Even if the epoxy melted out, the boxes are probably fine. The epoxy transfers the heat toward the back were the wind is supposed to carry it away.
Try filling the backs with JB weld, I had the same problem and this worked very well. Regards, Johnyy

User avatar
Posts: 8353
Joined: Sun Sep 19, 2010 5:39 pm
Location: Denham Springs,La.
Motorcycle: 1988 GL1500 I
Previously owned
78 GL1000
81 GL1100
82 GL1100 I
83 GL1100 I
83 GL1100 standard
84 GL 1200 I

Re: CDI ignition boxes dripping again

Post by virgilmobile » Mon Apr 14, 2014 7:41 pm

To my limited knowledge,the epoxy serves no purpose other than to keep the components sealed/waterproof.Epoxy certainly does not conduct heat well at all.
The components that get hot are usually mounted directly to the metal casting.
It is 30+ year old epoxy.Throw in a lot of heat and the stuff goes limp.
Just scrape the gooey stuff out,clean it up and fill with new stuff.Epoxy,JB Weld,silicone....whatever.

Post Reply