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07-03-2020, 12:49 AM #1Team Member
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How long do regular Merc/Quicksilver switch boxes last?
And what wears them out? Total hours? High rpm? Simple aging since most outboards sit unused for long periods?
I’ve got six ratty looking old switch boxes, two of which are in use on my 1987 2.0l 150. They seem to be perfectly fine. But I have no idea how long to expect them to last? I probably put 50 hours a year on them.
-Peter"padded wonder"
__________
the wet:
Hydrostream Viper, 140 v4 crossflow, some Raker props
16' Baja/Tahiti/Sidewinder clone, 135 v4 crossflow
17' boston whaler alert, 90 merc fourstroke
13' boston whaler, 40hp yamaha
the dry:
2003 bmw ///M5
1993 mustang/griggs racing road race car
and a handful of clunkers
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07-03-2020, 07:15 AM #2Member
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I have an 85 2L 150 that have the original boxes on it, 653 hrs on the motor.
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pcrussell50 thanked for this postpcrussell50 liked this post
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07-03-2020, 06:01 PM #3
Ya it's a crap shoot , like above ,last forever, some dont , I couldn't tell u with confidence on what actually kills em
Maybe crappy battery? Arc a wire?
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pcrussell50 thanked for this postpcrussell50 liked this post
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07-03-2020, 09:10 PM #4
Take one apart and it becomes obvious.
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07-03-2020, 09:14 PM #55000 RPM
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I got to ask - why the riddle - what is obvious . Please expand your answer
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07-04-2020, 01:18 PM #6Team Member
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"padded wonder"
__________
the wet:
Hydrostream Viper, 140 v4 crossflow, some Raker props
16' Baja/Tahiti/Sidewinder clone, 135 v4 crossflow
17' boston whaler alert, 90 merc fourstroke
13' boston whaler, 40hp yamaha
the dry:
2003 bmw ///M5
1993 mustang/griggs racing road race car
and a handful of clunkers
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Merc 2.5 liked this post
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07-07-2020, 05:58 PM #7Member
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I just replaced my switch boxes. One had failed after 29 years and the other was still working. Battery kept on a trickle charger when not in use so no idea why it picked now to go.
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07-08-2020, 04:43 PM #8
Some were junk when new, just like some of the stators Merc put out. My 1988 150 came with crap electronics. Once everything was replaced it ran like it should. My son has it now and I think the stator was replaced one more time.
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07-10-2020, 10:07 PM #9
Never ever replace a single switch box.
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ssv1761982 liked this post
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