mercury switches

This topic has 7 replies, 8 voices, and was last updated 9 years ago by r-c.

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April 8, 2015 at 3:23 am #1134
scoot
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Looking to buy a couple of mercury switches for mid 50s 30hp Evinrude.
Any sources?
Thanks.

Scoot
April 8, 2015 at 3:28 am #13524
mr-asa
Participant
Can you even buy them anymore? I would think the sale of them would be regulated somewhat.
April 8, 2015 at 3:53 am #13526
wedgie
Participant
Keep your eyes on Ebay. I found one NOS for a 59 Bigtwin .Cost around 8 bucks. Or….

Check with Dan Gano or Ed Elliot as they both have lots of NOS parts. I will find their contact info and post it later.
April 8, 2015 at 11:54 am #13531
crosbyman
Participant
Canada Member - 2 Years
the old round faced furnace thermostats have mercury switches inside . if you are stuck you could probably canibalize one and rig it up Inside your engine at the proper angle

Heat shrink wrap it for protection or apply a coat of silicone or… époxy ..to protect the glass tube.

https://www.youtube.com/watch?v=RGohPXdJEgo

Joining AOMCI has priviledges 🙂
April 8, 2015 at 4:16 pm #13539
frankr
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US Member - 1 Year (includes $3 online payment fee)
http://www.marineengine.com doesn’t have any for the 30hp, but they do have a couple for the 1957 35hp. I think it just has a longer wire.
April 9, 2015 at 4:11 am #13598
billy-j
Participant
US Member - 2 Years
If you need one for a 1956 30HP. get one for a 30 HP. They are specific to the year engine. I think it is the angle of the mounting tab on the switch that is different from year to year. If you still have yours and the wire is broke off just clean up where the wire is attached and solder the wire back on. Bill,
April 9, 2015 at 10:57 am #13607
outboardnut
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US Member - 1 Year (includes $3 online payment fee)
I ‘m up in Fremont wi fishing_live in burb in chicago
I think I may have one from a 35 hp Johnson RDS-21–1959
If there is way you can use it let me know
Maybe there is some way to figure the correct angle?
April 10, 2015 at 3:56 am #13654
r-c
Participant
Lifetime Member
Just don’t start your engine with a lot of throttle in forward or reverse! The only reason the mercury switch is there as a safety devise, so you can’t start the engine at full throttle in forward or reverse. System check… am in in neutral, am at start position, if ok pull rope or turn key. The lawyers started that far back!
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