(800) 853-2651
SHOP NOW

Need a Miller Electric expert...

F

Fritz Maurer

Well-known Member
Got a Miller Roughneck W/ OHV140 Tecumseh. Want to repower with a 16hp Briggs, however, the Briggs has no alternator under the flywheel to excite the welder. It is equipped with a motor-generator. Can I use any part of this system to excite the welder? My concern is running 12VDC to the rectifier. The original Tecumseh method for exciting the welder was just a single pole winding, powered by the magneto magnet (under the flywheel). The engine did not charge it's own battery. There was a separate winding in the welding alternator for this purpose. The ignition unit (outside the flywheel) was solid state with two wires: a kill wire and the high tension lead. Thanks for any input, Fritz
 
What is wrong with the Tecumseh OHV 140? Did the Electronic Magneto die? If so one can convert to a 12 volt battery powered electronic ignition system using mostly automotive parts. I have recently did this to two Tecumseh engine that used their early electronic magneto. One engine was a VH80, the other was a HH120. One problem making the engine swap that you have not run inti if you have no separated the engine and the generator yet, is the PTO end of the crankshaft is likely tapered without a key way.

Kent
 
Well the mag is about the only thing that didn't get destroyed when the engine scattered. I heard the rod go, and that probably would have been okay if it hadn't been for the rotor spinning at 3600rpm, churning everything up while it slowed down. I guess you're right, I should wait until I get the Tecumseh off the generator...I was told by a guy in the small engine field that there's a 90% chance two engines of similar HP will have the same crank if they both came off generators.
 
Fritz,

I can't help with your situation too much, but, about 5-6 years ago I scrapped out a bunch of generators (not welders).. some had Briggs, some Tec's, and I think there was one Honda.. I was able to fix a couple, but most had self-destructed.

When I tore em down, all seemed to have the same "output" on the crank, however, I didn't measure to verify, but all looked very close.

On another note.. I have a complete (disassembled) generator that has a 7 or 8 horse Tec on it.. It ran then (and generated, but the center bolt was broken on the rotor, and I have never fixed it still).. If you're close to my area, and it would work for you, I'd let it go CHEAP or maybe even trade for something I could use.. (what could I use?? Thats a good question.. LOL)

Brad
 
Well, thanks for the offer, but I'm afraid I have
plenty of welders with generating capabilities. I
just liked that little Roughneck cuz it has a lot of
power for it's size, and it's the easiest to throw
in the truck. Downside is you always have to keep
some AC7018 around just for that machine, but that
hasn't been much of a problem in recent years.
 
Just figured if ya needed an engine and it'd work for ya..

I never fixed it because shortly after that, I "inherited" a weld/gen, so I fixed that instead.. Then when the engine locked up.. (freak thing.. was running, good on oil, welded, shut it off, come back a hour later and it was tight..) I bought another weld/gen.

I imagine it'll be on this winter's to do list if it's still here.. been trying to weed out projects round here the last year or so.. Something like that I imagine I could easily fix, and sell/trade it for something else..

Brad
 
You must log in or register to reply here.

Similar threads

F
How is it possible to mess up a spark plug?
2
Replies
27
Views
5K
barnE
B
Tractor Parts Tractor Manuals

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Copyright © 1997-2024 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters
Website Accessibility Policy

Back
Top