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HudCo 
Orange Level
Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3820
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 Topic: tach hook up in magneto
Posted: 12 Jan 2022 at 10:18am |
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my wd has wico mag and i have a little 2" 3000 rpm distributer coil ingition tach thought i would mount it by the traction booster gauge. can i hook the the green tach wire to the coil or points ? dont need the tach as we know where 540 is on the quadrant and been on the tractor for fifty years but have the need to mess around some
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PaulB
Orange Level
Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 4956
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Posted: 12 Jan 2022 at 11:38am |
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You'll need a tachometer specially made for a magneto unless you have a mechanical tach. One for a distributer will not work. I have a 6 cyl magneto tach, so I know they are out there. Westach will make just about any gauge you desire, for a price.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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Fred in Pa
Orange Level
Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210
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Posted: 12 Jan 2022 at 11:39am |
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This will be intresting hear, I would think it would act act as grounding to the points.
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He who dies with the most toys is,
nonetheless ,still dead.
If all else fails ,Read all that is PRINTED.
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steve(ill)
Orange Level Access
Joined: 11 Sep 2009
Location: illinois
Points: 86125
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Posted: 12 Jan 2022 at 6:43pm |
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Like them all, but love the "B"s.
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B26240
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Joined: 21 Nov 2009
Location: mn
Points: 3860
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Posted: 12 Jan 2022 at 6:54pm |
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Steve we put one of those cheep tacs you showed a picture of on the saw mill arbor shaft at our tractor clubs saw mill and it works great. The saw on the mill is hammered to run at 600 RPM's . We mounted the readout so spectators can't see it . We have used it for two years with no problems.
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allischalmerguy
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Joined: 11 Sep 2009
Location: Deep River, IA
Points: 2893
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Posted: 12 Jan 2022 at 10:11pm |
This guy had an airplane with magnetos (I think) and he got a tach to work. Here is the weblink http://www.bowersflybaby.com/tech/tach.html
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It is great being a disciple of Jesus! 1950 WD, 1957 D17...retired in Iowa,
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HudCo
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3820
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Posted: 12 Jan 2022 at 11:06pm |
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can you get inside and hook it to the generating rotor side of the coil
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WF owner
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Joined: 12 May 2013
Location: Bombay NY
Points: 4906
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Posted: 13 Jan 2022 at 5:15am |
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I have small engine tachometer/hour meters on my Honda inverter generators that we use for the RV. They have a battery for power and mount over the spark plug wire to get an impulse. I think one of these would work with a tactor magneto, but I have no idea how you would hook up the mag you already have.
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B26240
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Joined: 21 Nov 2009
Location: mn
Points: 3860
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Posted: 13 Jan 2022 at 6:12am |
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The one we used on the saw mill has a small magnet that we super glued to the arbor shaft and the pickup head is mounted so as the shaft rotates the magnet passes within 1/4 inch of it. All this I think would fit inside the bell housing with magnet mounted to back side of pressure plate, or better yet on crankshaft pulley up front.
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HudCo
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Joined: 29 Jan 2013
Location: Plymouth Utah
Points: 3820
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Posted: 13 Jan 2022 at 9:40am |
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we allready have dozons other tachs around the shop magnetic , ones you wrap the wire on the spark plug wire tiny tach ii we sell here. i just want to do somthing differant
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