Superlube will NOT work. I put TefGel on all metal to metal contact points. That is, before I crimp a connector on a wire, I coat the wire with TefGel. Then I coat the ring connector or male/female disconnect with TefGel before attaching it to a terminal block, breaker, or whatever.
My buddy and I have about 40 years of collective experience in marine electrical. Neither of us has ever had a corrosion related failure on any connection coated with TefGel. TefGel is also a good dissimilar metal corrosion coating. We use it, or threadlocker, on any stainless into aluminum fastening. Dennis C. On Wed, Aug 14, 2019 at 10:24 AM Wade Glew via CnC-List < cnc-list@cnc-list.com> wrote: > Dennis, > Do you put the TefGel on the battery connecting surfaces or coat the > surfaces after all connections are made? Would Superlube work the same? > Wade > Oh Boy C&C 33 MKII > > On Tue, Aug 13, 2019, 13:47 Dennis C. via CnC-List, <cnc-list@cnc-list.com> > wrote: > >> Best to disconnect all the battery cables both positive and negative, >> clean them and reconnect them. Get yourself some Ultra Safety Systems >> TefGel ( >> https://www.jamestowndistributors.com/userportal/show_product.do?pid=546) >> and coat the connections with it. Clean both ends of the cables. >> >> Like Fred said, measuring voltage is only part of the story. You're >> really looking for current. A corroded connection may show adequate >> voltage but may be incapable of passing enough current to start your engine. >> >> Dennis C. >> Touche' 35-1 #83 >> Mandeville, LA >> >> On Tue, Aug 13, 2019 at 1:34 PM Wade Glew via CnC-List < >> cnc-list@cnc-list.com> wrote: >> >>> thanks you. >>> >>> Ok, I'll get a volt meter to check the batteries directly. >>> if I'm to check all the grounds, I take this to mean: follow the >>> batteries back to wherever the system grounds to the engine block to begin >>> with. Then each of the battery terminals and finally to where the battery >>> banks come to the main ground bus? I'm really a rookie with electrical >>> stuff so be specific if you can. >>> >>> Wade >>> Oh Boy C&C 33 MK II >>> >>> On Tue, Aug 13, 2019 at 1:14 PM Frederick G Street via CnC-List < >>> cnc-list@cnc-list.com> wrote: >>> >>>> Agreed, sounds like a bad ground. Voltage is one thing; but enough >>>> current to crank is another, and definitely something that will be >>>> adversely affected by bad ground continuity. >>>> >>>> — Fred >>>> >>>> Fred Street -- Minneapolis >>>> S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI >>>> >>>> On Aug 13, 2019, at 12:39 PM, Dennis C. via CnC-List < >>>> cnc-list@cnc-list.com> wrote: >>>> >>>> Clean all the ground connections. >>>> >>>> Dennis C. >>>> >>>> On Tue, Aug 13, 2019 at 12:26 PM Wade Glew via CnC-List < >>>> cnc-list@cnc-list.com> wrote: >>>> >>>>> Hello listers, I would appreciate any advice you might have on my >>>>> electrical issue du jour. >>>>> >>>>> Mine is a C&C 33 MK II and I have a Link 20 battery monitoring >>>>> system. Bank 1 (house) is 4 Trojan T-105 (225 AH) 6V deep cycles about 5 >>>>> years old. Bank 2 is a 12V starter battery dated 2005. I look after my >>>>> batteries pretty well and the system seemed to be operating normally. I >>>>> have a True Charge 40 battery charger. One morning after several days >>>>> out >>>>> sailing, drinking lots of cold beer from the fridge and lots of music >>>>> playing) and running the engine very little, the engine would not start. >>>>> Starter turned slow, felt like no battery power. I had the Master Switch >>>>> on 1 so I turned the switch to Battery 2 at which point all 12V electrical >>>>> activity on the boat stopped working altogether. Prior to switching to >>>>> Bat >>>>> 2, the Link 20 showed my starter battery at 12.4V with estimated time on >>>>> battery remaining at 225 hours. I put a portable battery pack onto my >>>>> starter battery and it read 12.4 V from the battery. However, powering up >>>>> the battery pack and connecting to my starter battery allowed me to start >>>>> the engine. >>>>> >>>>> I went back to harbour and replaced my starter battery with a brand >>>>> new 1000 cranking amps 12V battery. I charged by shore power overnight >>>>> then left for a few more days on the water. >>>>> >>>>> Now, the current circumstance is this. >>>>> When connected to shore power and Main Switch set to Bat 1, I see >>>>> normal charging voltages to both battery banks. >>>>> When under engine and Main Switch set to ALL, I see normal charging to >>>>> both batteries. >>>>> After sitting overnight on anchor, I see both Bank 1 and Bank 2 are >>>>> resting at about 12.5 V. Both banks show plenty of reserve on the Link >>>>> 20. When I try to start the engine it feels again like I have low battery >>>>> power. The engine barely turns when I set the Main Switch to either Bat 1 >>>>> or ALL and won't start. If I change the switch to Bat 2, all 12V >>>>> electrical activity on the boat instantly stops. If I put the portable >>>>> battery pack onto my starter battery with the switch in the ALL position, >>>>> the engine will go however, it still feels like the starter is turning too >>>>> slowly. >>>>> >>>>> I'm looking for a single cause to explain all this as up til now, the >>>>> system has functioned well for the 10 years I've owned the boat. I would >>>>> appreciate any suggestions >>>>> >>>>> Wade >>>>> Oh Boy, C&C 33 MK II >>>>> >>>> _______________________________________________ >>>> >>>> Thanks everyone for supporting this list with your contributions. Each >>>> and every one is greatly appreciated. If you want to support the list - >>>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>>> >>>> _______________________________________________ >>> >>> Thanks everyone for supporting this list with your contributions. Each >>> and every one is greatly appreciated. If you want to support the list - >>> use PayPal to send contribution -- https://www.paypal.me/stumurray >>> >>> _______________________________________________ >> >> Thanks everyone for supporting this list with your contributions. Each >> and every one is greatly appreciated. If you want to support the list - >> use PayPal to send contribution -- https://www.paypal.me/stumurray >> >> _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
