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johnson Utilimotor Coil Replacement


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  #1  
Old 08-21-2019, 06:39:31 PM
overdriver overdriver is offline
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Default johnson Utilimotor Coil Replacement

hi folks

I picked up another utilimotor
but the coils are shot, anyone
have any success installing another coil from a different small engine ?
if so what did you use
I have an order for one but he hasn't made any up yet
(its going on over a year )

the coil size is 2 1/4 inch accost
1 1/4 high
the center hole is about 3/4
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  #2  
Old 08-22-2019, 10:37:25 AM
pigpen60 pigpen60 is offline
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Default Re: johnson utilimotor coil replacement

Pictures please.
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Old 08-27-2019, 04:44:25 PM
overdriver overdriver is offline
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Default Re: johnson utilimotor coil replacement

Click image for larger version

Name:	100_1016.JPG
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Size:	1.03 MB
ID:	342414

here is a picture of the coil
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Old 08-27-2019, 08:48:47 PM
Doug Tallman Doug Tallman is offline
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Default Re: johnson utilimotor coil replacement

The center lamination size is the most critical. You say it's 3/4 square? Sounds big. Can you take a pic of the overall mag? If you find a coil that fits the center and fits the space the other measurements don't matter.
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Old 08-28-2019, 05:54:31 PM
Ed Radtke Ed Radtke is offline
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Default Re: johnson utilimotor coil replacement

I have always shaved the sides of core then cut laminations frome the other two sides to get a fit.you can add back any type of shim on the top and bottom as nessesary to tighten that up if you removed too many leafs.just make sure the sides are a snug fit first time around.
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Old 08-30-2019, 06:51:59 PM
overdriver overdriver is offline
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Default Re: johnson Utilimotor Coil Replacement

I am not having any luck
finding a coil that's close
briggs ,clintion ,lawn boy etc
any ideas ??
on who to look at ??
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Old 08-30-2019, 08:28:34 PM
EvilDr235 EvilDr235 is offline
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Default Re: johnson Utilimotor Coil Replacement

Maybe a Clinton cast iron engine model 498, 900 or a 990 coil looks similar.
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Old 08-31-2019, 02:01:52 AM
Ed Radtke Ed Radtke is offline
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Default Re: johnson Utilimotor Coil Replacement

the old cloth coverd wico mower and outboard mags have the next largest core I know of. about 9/16-5/8. look maybe at old jacobsen or cushman coils.call Dennis Carpenter and get coil dimentions.he has coils.
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