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Antique Marine Engines and Outboard Motors

67 Mercury 50hp Distributor and Coil Wire


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  #1  
Old 01-25-2018, 02:59:23 AM
yokilla yokilla is offline
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Question 67 Mercury 50hp Distributor and Coil Wire

hi all
first time on forum, need some help bench testing three post rectifier, two yellow posts and one red in the middle of the yellow posts, I need to know how and what to test this with??? and how to test the two wires that are coming from the stator? Ive seen nothing for this year on how to bench test them,,,,any help will be appreciated.
Thank you
yokilla
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Old 01-25-2018, 12:30:36 PM
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Default Re: merc. 1967 50hp elect. testing

https://www.google.com/search?q=merc...nt=firefox-b-1
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Old 01-25-2018, 02:28:47 PM
yokilla yokilla is offline
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Default Re: merc. 1967 50hp elect. testing

Thank you harry for the info. this will help a lot, does anyone know how to bench test. the recitifier, and stator????
thank you
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Old 01-25-2018, 05:38:48 PM
yokilla yokilla is offline
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Default Re: merc. 1967 50hp elect. testing

sorry,,,i found info. that will help. thanks again.
yokilla
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Old 01-25-2018, 08:54:59 PM
yokilla yokilla is offline
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Question 67 merc 50hp distributor and coil wire

hello,
how to do remove the coil high voltage wire to the distributor????does it only screw at the distributor end and just pull out of the coil? or does both ends screw out?
Thanks
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Old 01-25-2018, 11:05:01 PM
cobbadog cobbadog is offline
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Default Re: 67 merc 50hp distributor and coil wire

If there is no obvious screw holding the High Tension lead in place then yes it just unscrews.
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Old 01-26-2018, 01:27:35 AM
yokilla yokilla is offline
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Default Re: 67 Mercury 50hp Distributor and Coil Wire

I will remove the coil tomorrow, and try to unscrew it. I know it unscrews form the dis. cap. I could not find anything on the coil end. I saw a video on checking spark using the switch box and coil. I do not want to break the coil high voltage wire trying to remove it by just pulling on it.
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Old 01-29-2018, 12:13:02 AM
yokilla yokilla is offline
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Question Re: 67 Mercury 50hp Coil Wire and spark plug check.

hello,
Was able to pull coil wire from coil end, hard but came out.
Got motor back from dealer, not running.
New plugs were installed, # champion L76V???? will this work with this motor??
I believe plugs should be QL82C or L82C.
what do you think?????Thanks
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Old 01-31-2018, 02:48:41 AM
johnsonseahorse johnsonseahorse is offline
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Default Re: 67 Mercury 50hp Distributor and Coil Wire

Hi.merc usualy runs a surface gap plug.L76v sounds about right.Surface gap plug has no curved arm that the plug that goes to the electrode.As for a rectifier,has nothing to do with a spark.All the rectifier does is charge the battery.Keep in ming it only charges only what it uses.It not a battery charger.It wont charge a complete dead battery.Its not that strong.If u have spark issues start looking at condition of distributor cap and rotor.The contacts have to be clean!!I hope this helps u.
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Old 02-03-2018, 12:42:24 AM
yokilla yokilla is offline
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Cool Re: 67 Mercury 50hp Distributor

hello all,
Having a bad time locating parts for this motor.

Question: Will a 74 50hp merc. distributor thunderbolt, work on a 67 merc. 50hp?
will they interchange.
thank you
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