Originally Posted by Don Lucas
I agree that heat shrink is going to be best for a butt connection. never said otherwise.
PS - I also have been a pump engineer
and sales rep so I must be right!
So you do you feel they don't work on ring terminals, i'm confused? The exposed ring is and will always be subjected to moisture and this is what the PS article dealt with. You can coat the exposed ring end with terminal grease and it works quite well.
Was just on a Caliber 40 LRC last week where a terminal strip was used in the bilge
next to the mast
base and while not exactly the best place for a t-strip the owner had two redundant bilge
pumps in there to try and prevent any water from ever reaching it. The terminals were coated in terminal grease and still looked brand new when the grease was wiped away.
Out of thousands of factory made adhesive crimp terminals I have had only a hand full that failed during shrinking and pulled away from the ring end and I have never seen any signs of corrosion under the adhesive shrink on either rings or butts, does not mean I never will, but with a rather large n (n=lots of boats worked on) they have proven to me to be more reliable over the long haul. I generally don't use push on connectors just rings and butts unless it is for a very un-critical item that occasionally needs to be disconnected and a t-strip absolutely can't be used.
I spent last evening upside down cutting off about 30 open style insulated crimps on a 1997 Mako. Had to clean the wires with DeOxIt & Scotchbrite and then re-terminate about 30% of the panel. Wires were not left long enough by the builder
to cut back to clean wire.
Also replaced two battery cables
that were open style lugs/tinned wire and were badly corroded. This boat has a really dumb battery
location that is very damp. The heavy closed ended cast lugs with adhesive heat shrink were perfectly fine but the open style were toast. I know because one of the good terminals had the incorrect hole size so I crimped on a new lug with the correct size hole in the lug for the post it was to go onto. The wire was bone dry and looked as good as new.