Ditch MerCathode for Anode Protection?
#11
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Thread Starter
Anodes will assist in giving more material to sacrifice, but does not do the same job as the mercathode.
I have one of the Merc probes and its a piece of wire that has been platinum coated around a small nylon stick. You could probably get close if you silver plated a 18AWG wire, but not exact due to differences in properties
I have one of the Merc probes and its a piece of wire that has been platinum coated around a small nylon stick. You could probably get close if you silver plated a 18AWG wire, but not exact due to differences in properties
The 2nd paragraph is what I'm trying to get away from if possible. "Known Knowns" seem to lacking with MerCathode testing and usage. Other than being unreliable and a PITA to test.
#12
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iTrader: (1)
These can be helpful. If you're on shorepower or in a marina overnight. Extra protection doesn't hurt.
https://www.google.com/shopping/prod...owpxoCXPvw_wcB
https://www.google.com/shopping/prod...owpxoCXPvw_wcB
#13
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Thread Starter
These can be helpful. If you're on shorepower or in a marina overnight. Extra protection doesn't hurt.
https://www.google.com/shopping/prod...owpxoCXPvw_wcB
https://www.google.com/shopping/prod...owpxoCXPvw_wcB
#15
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iTrader: (1)
a. MODELS WITH ELECTRODE MOUNTED ON BOAT TRANSOM
Fresh Water Areas Salt, Polluted or Mineral Laden Water Areas
Quicksilver VOA Meter 7.5 - 10.5 millivolts 8.8 - 10.5 millivolts
Digital Meter 750 - 1050 millivolts 880 - 1050 millivolts
b. MODELS WITH ELECTRODE MOUNTED ON BOTTOM OF TRANSOM ASSEMBLY
Fresh Water Areas Salt, Polluted or Mineral Laden Water Areas
Quicksilver VOA Meter 6.2 - 11.8 millivolts 7.5 - 11.8 millivolts
Digital Meter 620 - 1180 millivolts 750 - 1180 millivolts
Start on page 7A-20.
http://www.boatfix.com/merc/servmanl/14/14a7.pdf
BTW if your not seeing any paint missing off the drive after being in the water my guess is your fine
Last edited by AllDodge; 02-15-2017 at 02:25 PM.
#17
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Thread Starter
It's real easy to test, after sitting for 24 hours and the boat plugged in connect the probe to the positive connection of a digital multimeter. The other connection goes to boats battery ground. Set meter scale to 2000mV and drop probe in the water within 6 inches of the rear of the drive. There are two types of anodes and yours is listed at the bottom set
a. MODELS WITH ELECTRODE MOUNTED ON BOAT TRANSOM
Fresh Water Areas Salt, Polluted or Mineral Laden Water Areas
Quicksilver VOA Meter 7.5 - 10.5 millivolts 8.8 - 10.5 millivolts
Digital Meter 750 - 1050 millivolts 880 - 1050 millivolts
b. MODELS WITH ELECTRODE MOUNTED ON BOTTOM OF TRANSOM ASSEMBLY
Fresh Water Areas Salt, Polluted or Mineral Laden Water Areas
Quicksilver VOA Meter 6.2 - 11.8 millivolts 7.5 - 11.8 millivolts
Digital Meter 620 - 1180 millivolts 750 - 1180 millivolts
Start on page 7A-20.
http://www.boatfix.com/merc/servmanl/14/14a7.pdf
BTW if your not seeing any paint missing off the drive after being in the water my guess is your fine
a. MODELS WITH ELECTRODE MOUNTED ON BOAT TRANSOM
Fresh Water Areas Salt, Polluted or Mineral Laden Water Areas
Quicksilver VOA Meter 7.5 - 10.5 millivolts 8.8 - 10.5 millivolts
Digital Meter 750 - 1050 millivolts 880 - 1050 millivolts
b. MODELS WITH ELECTRODE MOUNTED ON BOTTOM OF TRANSOM ASSEMBLY
Fresh Water Areas Salt, Polluted or Mineral Laden Water Areas
Quicksilver VOA Meter 6.2 - 11.8 millivolts 7.5 - 11.8 millivolts
Digital Meter 620 - 1180 millivolts 750 - 1180 millivolts
Start on page 7A-20.
http://www.boatfix.com/merc/servmanl/14/14a7.pdf
BTW if your not seeing any paint missing off the drive after being in the water my guess is your fine
#20
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Thread Starter
10-4 on that, thanks for reiterating what I've read elsewhere. When I bought the boat the hydraulic ram anodes were dark gray and down to the mounting bolts. I immediately installed 4 new units (2 outdrives).