Tecumseh Solid State Ignition

[jpk3153]

Can someone tell me if the SSI module on a Tecumseh OH140 will work on a Tecumseh HH120? They appear to be quite similar.

 

[joe csuti]

The modules are the same,difference being on the HH110/120 coils the plug lead was avail in 3 different length's & 3 different pn for same,if coil not working,before condeming coil,check that both trigger pins are in flywheel & alt stator as coil is powered by a seperate winding on alt stator,rarely do these go bad,but does happen from time to time,also check ign system with kill lead disconnected.

 

[Kentb of SWMO]

I have recently repaired two of the old cast iron Tecumseh engine with the solid-state magneto for the Late 60's/Early 70's. One was on a Wheel Horse rider. This engine was a VH-80. The other is on a Massey-Ferguson rider. It is a HH-100. I converted both of these engines to battery type electronic ignition. I mounted a Magnetic Proximity Detector on a piece of angle iron where the stock ignition was. Then outside the engine I mounted a standard external resistor 12 volt coil and a four pin GM HEI ignition module. I also changed the ignition switch to a battery type ignition switch. This is a reality simple conversion.

Kent

 

[Anonymous-0]

Thank you for that info!

I'm guessing that the proximity sensor is picking up the trigger pins on the flywheel?

Is just one pin used, or two?

Can you provide a wiring diagram & part number for the module?

Thanks for any additional info.

 

[Kentb of SWMO]

Both pins are used. The LONG PIN at TDC trips the detector for starting. When the engine is at speed the short pin trips the detector for advance. I think the long pin also supplies a spark when running but it is a wasted spark. Send me a E-mail and I will forward you a E-mail I just sent to another guy. My E-mail should be open.

Kent

 

[MNGB]

Hi Kent, guess I didn't see this soon enough to get your e mail but I'd like a drawing of your SSI to HEL convertion for the Tec engines my e mail is gbsb2002(at)yahoo.com remove the at as needed.
Thanks GB