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Magneto Needed

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2 months 1 week ago #240933 by 1oldiron@comcast.net
Hi All: About 20 years ago I came across a D8 1H which had been parked in the 1980s and was missing a pony magneto. Fast forward and it's still there and the owner wants it gone. It is almost 500 miles from my place, but there is a wonderful museum of American ingenuity nearby that wants to have it on display due to its place in local history. I took a quick trip and some tools and spent a day getting lots of things unstuck and figure about 98% chance of getting it started next spring for the move. What I need is a magneto for it. Does anyone have a good complete (with impulse coupling) magneto that can be spared? Of course I'd prefer a hot one, but a rebuildable core would be OK as well. Please reply here or email This email address is being protected from spambots. You need JavaScript enabled to view it.  with your mailing address and price plus shipping to Redmond WA 98052
Thank You,Jeff
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2 months 1 week ago #240941 by gemdozer
Replied by gemdozer on topic Magneto Needed
I have a CATERPILLAR magneto 5f7494 counterclock wise he is complet but missing the cap gasket and he has good bleu spark.
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2 months 1 week ago #240942 by 1oldiron@comcast.net
Replied by 1oldiron@comcast.net on topic Magneto Needed
The 5F7494 is supposed to be a correct fit. Is the impulse coupler included? A cap gasket should be easy to fake if necessary. What's your price on it?

Thanks!

Jeff

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2 months 1 week ago #240944 by neil
Replied by neil on topic Magneto Needed
You can likely get the cap and gasket new Jeff. I just picked up one from Standard Magneto for $45. The impulse mechanism is "part" of the mag so it most likely is there but I'll defer to Hector to respond. Sounds like it has a good strong spark.

Cheers,
Neil

Pittsford, NY
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2 months 1 week ago - 2 months 6 days ago #240947 by Old Magnet
Replied by Old Magnet on topic Magneto Needed
5F7494 is an American Bosch Replacement and needs the 4F2319 coupling. A 7F9934 American Bosch and 4F2319 coupling is also a replacement option for the original Eisemann RC-2Q but you need to have a s/n to match due to many applications.

5F7494 is an AB MJK 4/2 180 B311
7F9934 is an AB MJK 4/2 180 C311
Appears to listed for late 1H D8's  1H4744-up
Need the tractor S/N
Last edit: 2 months 6 days ago by Old Magnet.
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2 months 6 days ago #240960 by naylorbros
Replied by naylorbros on topic Magneto Needed
The early 1Hs had a base mount mag and the late ones had a flange mount mag, if I remember. It would also depend on if the tractor still has its original staring engine or if it has been traded for a later version.
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2 months 6 days ago #240966 by 1oldiron@comcast.net
Replied by 1oldiron@comcast.net on topic Magneto Needed
Sorry about the serial number. It was in the title to the picture and I assumed it would show. Silly me! It is 1H 3647. It has a flange mount setup, no base bracket. I also see in my parts book the pony has a later exhaust pipe setup between the pony manifold and the diesel manifold, so I might get tricked by a change as naylorbros mentioned.
I really appreciate all your replies since every bit of knowledge helps on this project.

Jeff

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2 months 6 days ago #240970 by Old Magnet
Replied by Old Magnet on topic Magneto Needed
Original flange mount mag for 1H3647 is an Eisemann 4B7767. Parts book says when a complete mag replacement is required use a 7F9934 which is the American Bosch Flange Mount MJK 4/2 180 C311. I have a complete (untested) mag if you are interested. PM me
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2 months 6 days ago #240977 by 17AFarmer
Replied by 17AFarmer on topic Magneto Needed
25 years ago I bought a brand new Wico flange mount for a RD6 worked great much better than the Eiseman I thought I even had a spare Wico as I was still using the RD6 17afarmer
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