If this eng has solid state ign with a large cast aluminum ign module mounted over the flywheel with a single quick disconnect terminal on module & a wire connected to same that runs back to alt stator under flywheel the problem may be a bad alt stator or a bad rectifer/regulator,the alt stator has a seperate winding on it to power ign module,alt stator windings may be shorted to winding for ign module or diodes in rect/regulator bad & shorting out AC output from alt stator,this will usually affect ign also.I would replace rectifer/regulator first to see if that cures problem,right now I can't locate my HH series service manual to tell you what AC voltage should be from alt stator,one of the other guys might know & post.
Re: Tecumseh HH150 on a Bolens Husky 1556 in reply to joe csuti, 11-06-2013 12:54:28
Thanks, that is the engine and ignition system I have. Since my post, I just could not understand why I had battery voltage at the plug going to the stator. I checked the key switch against the wiring diagram; it has been wired in the 'On' position. Battery power wire from fuse link is connected at same terminal as wire from the regulator. I removed the regulator; it shows evidence of over heating.I would like to know the specs for the stator output, especially if I can't find the OEM voltage regulator.
Re: Tecumseh HH150 on a Bolens Husky 1556 in reply to Ron Maddax, 11-06-2013 14:24:04
Hi Ron, I'm not sure about the HH150, but the OH160 has a 3 pin connector that the voltage regulator connects to, on those engines if the 3 pin connector has a staggered / offset to the connector then the alternator is 10 amps, if the three pin connector has the 3 pins in a straight row then its a 20 amp system, just about any rectifier regulator will work as long as you mate to the approximate amperage, many guys use a Kohler regulator and they work good the 2 outside connector are AC and the center is DC.
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