50 hp rude tachometer pole settings question..

[bigbenc2]

50 hp 1986 rude.....i just ordered and received a tach because the one i had went bad..the pole settings on the back of this tach is a 1,2,3,4.....i have no instructions with the new tachometer.what pole setting am i supposed to use?<br />thanks for the help,<br /> ben

 

[rickdb1boat]

Re: 50 hp rude tachometer pole settings question..

Hi Ben<br /><br />Sounds like an automotive Tach or I/O Tach. Pole setting should be 6...Where did you get the Tach and what brand is it? There are some motors that do use the 2,3,4 pole settings, but OMC is not one of them

 

[steviecops]

Re: 50 hp rude tachometer pole settings question..

I'm sure that OMC use a 12 pole charging system, and the setting on the tach should be 6. There should be instructions with your tach. I've got a Faria tach and the settings go from 4 to 12 poles. 12 poles set as 6, 10 poles set as 5, etc. The instructions are printed on the back of the tach.

 

[stairliftoheaven]

Re: 50 hp rude tachometer pole settings question..

lookin 4 a tach meself, gotta 60hp 1985 rude and under the flywheel is a 2 pole alternator. know not what to do

 

[rickdb1boat]

Re: 50 hp rude tachometer pole settings question..

That's not a "2" pole, but a 12 pole you got there. Any Tach that can be set to 6 will work.

 

[steviecops]

Re: 50 hp rude tachometer pole settings question..

Not sure, it's a bit confusing to me, but I think there are 3 coils, so hence the 12/6 poles? I don't know! Something like that!

 

[bigbenc2]

Re: 50 hp rude tachometer pole settings question..

it is a US Marine Tachometer 6000 RPM for an adjustable 1- 4 Cylinder engine.

 

[steviecops]

Re: 50 hp rude tachometer pole settings question..

I read up on it today, and the stator has 12 magnets ;o) I think that's what makes it a 12 pole system.<br /><br />If not, then I'm even more confused than I was before ;o)

 

[bigbenc2]

Re: 50 hp rude tachometer pole settings question..

so what do i need to do?

 

[steviecops]

Re: 50 hp rude tachometer pole settings question..

You need to find out if the tach is for a 2 stroke outboard with electronic ignition and an alternator output for the tach. Some tachs are for points ignition, some are for inbard engines, etc, etc.<br /><br />If it is meant for CD ignition, and it only has settings for 1,2,3 or 4 cylinders, set it as for a 3 cylinder 2 stroke engine. I had a Smiths tach fitted that had the same system, and the 3 cylinder 2 stroke was the setting that it advised. My engine is a 2 cylinder 55.<br /><br />I was never convinced that it read right though, even though it was new, so I've replaced it with the Faria tach that has proper pole settings.<br /><br />Good luck<br />Steve

 

[rickdb1boat]

Re: 50 hp rude tachometer pole settings question..

Almost any Teleflex or faria Tach will work. It must have a setting for "6" pole. These will work:<br /><br /> http://www.cabelas.com/cabelas/en/templates/home/home.jhtml <br /><br />Put this whole letter/ number in the Catalog Quick Order box on the top left: IE-012938 Then hit find products...

 

[bigbenc2]

Re: 50 hp rude tachometer pole settings question..

http://cgi.ebay.com/ebaymotors/ws/e...&rd=1&item=2481188841&sspagename=STRK:MEWN:IT <br /><br />there is the link to the tach that i purchased.if that can help yall tell me where to go from there.<br /><br />thanks

 

[stairliftoheaven]

Re: 50 hp rude tachometer pole settings question..

thanks for the tip rick