Tecumseh silly question time - Snowblower Forum : Snow Blower Forums
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post #1 of 28 Old 10-25-2019, 10:12 AM Thread Starter
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Tecumseh silly question time

I have a Jacobsen Imperial 826 with no spark. Although I've turned wrenches on cars, trucks, Diesel locomotives, lawn mowers and motorcycles, I've never had to work on an old tecumseh.

I purchased a solid state coil for it and my question is will the solid state coil replace the entire magneto? I mean, pull off the flywheel (magneto is under the flywheel), drop the magneto assembly (points, condenser and coil) in the trash bin and screw in the solid state coil and reassemble.
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post #2 of 28 Old 10-25-2019, 11:24 AM
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Did u match the new coil with the engine model or the model of the machine?


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post #3 of 28 Old 10-25-2019, 12:54 PM
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need part numbers from the engine. If it is an internal ignition system (points/condensor module and coil all under the flywheel) then I am not aware of a solid state replacement. There are no external mounts on the engine casting for a replacement module. If it is external coil engine, with the points module still under the flywheel, and the coil module outside the flywheel, then there are some solid state replacements available.

Paul
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1995 Toro 724 with Predator 212cc, 1988 Toro 521
1980 Toro 421, 1995 Craftsman 524
1997 Toro CCR 2500 & 1994 Toro CCR Powerlite
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post #4 of 28 Old 10-25-2019, 12:55 PM Thread Starter
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Quote:
Originally Posted by e.fisher26 View Post
Did u match the new coil with the engine model or the model of the machine?


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Yes. And from what I saw, the coils from a 4HP up to 8HP are the same, as are the points and condenser.
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post #5 of 28 Old 10-25-2019, 12:58 PM Thread Starter
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Thanks. This is what I thought would be. I'd never be lucky enough to have it simple. The entire ign system is under the flywheel and there are no mounts for an external coil.
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post #6 of 28 Old 10-25-2019, 01:36 PM
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points and condensor are easy to replace. But timing check requires a dial indicator on the piston through the spark plug hole (there is a tool for that) or remove the head and use a machinist setup for the indicator.

Paul
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1995 Toro 724 with Predator 212cc, 1988 Toro 521
1980 Toro 421, 1995 Craftsman 524
1997 Toro CCR 2500 & 1994 Toro CCR Powerlite
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post #7 of 28 Old 10-25-2019, 04:50 PM
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I've done quite a few points replacements on those old Tecumseh...and decided to scrap the engine in favor of a Predator from now on.....The only Tecumsehs I'll keep for myself must be electronic ignition. What I really like about those old flathead Briggs from the 60's and 70's is how easy it is to convert to a modern pointless magneto.
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post #8 of 28 Old 10-25-2019, 06:46 PM
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cranman: was I correct in saying that the older Tecumseh engines without the external mounts for the coil cannot be converted to electronic ignition? Or is there a full electronic ignition module that can go inside the flywheel?

Paul
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1995 Toro 724 with Predator 212cc, 1988 Toro 521
1980 Toro 421, 1995 Craftsman 524
1997 Toro CCR 2500 & 1994 Toro CCR Powerlite
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post #9 of 28 Old 10-25-2019, 07:08 PM
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Quote:
Originally Posted by milliesdad View Post
I have a Jacobsen Imperial 826 with no spark. Although I've turned wrenches on cars, trucks, Diesel locomotives, lawn mowers and motorcycles, I've never had to work on an old tecumseh.



I purchased a solid state coil for it and my question is will the solid state coil replace the entire magneto? I mean, pull off the flywheel (magneto is under the flywheel), drop the magneto assembly (points, condenser and coil) in the trash bin and screw in the solid state coil and reassemble.


What is the model of the engine?


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post #10 of 28 Old 10-26-2019, 10:35 AM
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I've heard of a module to relpace the points on the old Tec's, but have no experience with them...
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