Wires getting brittle - Fix?

[Jerryda96]

Noticed my wires are getting brittle in my 1990 90HP Evinrude, just like they did in my old 25HP Johnson. In the old days I blamed it on the CRC that the dealer sprayed all over the engine "To protect it from corrosion". I don't know if the dealer got to this one or not. Does anyone know of a spray that might prevent the wires from cracking any further? While I'm here I might as well ask if there is a spray that would prevent or delay the aluminum corosion that is starting on the heads. This is a fresh water only bass boat.<br /><br />(Picking up the carb kits tomorrow - thanks for the info guys)<br /><br />"Inside ever older person is a younger person wondering "What the he** happened"".

 

[BillP]

Re: Wires getting brittle - Fix?

Diehard,<br />I called the tech line at CRC and was told to use their 6-26 to prevent corrosion without making the wire sheathing brittle. This stuff won't bring back your wire damage but it definitely keeps corrosion down to nil. A saltwater used 1991 omc I have still looks factory new und the hood from using it. <br /><br />I guess you already know the CRC 6-56 will cause the damage you have.

 

[Jerryda96]

Re: Wires getting brittle - Fix?

Bill, thanks for the info. No, I did not know they had two different mixtures of CRC. Guess mine got the 6-56 on it. Now to figure out who owes me a wireing harness and coil packs, the boat dealer or CRC Industries. (Lots of luck on recovering - huh)

 

[12Footer]

Re: Wires getting brittle - Fix?

Sunlight and periods of heat/cooling break-down the insulation,changing it on a molecular level (just like it does to skin,paint,and other polymers).<br />Nothin much you can do about it,except shield it from direct sunlight,and spray with Armorall, clear acrylic, or silicone.<br />I had a major problem with the wire harness on an old Merc. It was really bad,and I could not find a new one with the old plug-type end on it. So I bought a used one in a junk yard, cut the plug off, and reconnected all the wires to it. Then,I bought a thing called "Scotchcast" by 3M, available at electrical supply houses. They are usually used to repair underground power cables,and are waterproof,highly insulated and tough as steel. It werked fantastic.