Tecumseh HH120 voltage regulator
#1
Tecumseh HH120 voltage regulator
I have a 1970 Bolens 1253 tractor with a HH120 engine. Lately the engine will only start when assisted with another battery. The battery can be charged with an external battery charger. I suspect he voltage regulator as it puts out anywhere form 10 to 18V without a load (battery not connected), depending on engine rpm.
Can anyone confirm my suspicion? I am also curiuos to know whether I can use an automotive regulator from a chunk yard. Thanks in advance for any help you cna provide.
Herb
Can anyone confirm my suspicion? I am also curiuos to know whether I can use an automotive regulator from a chunk yard. Thanks in advance for any help you cna provide.
Herb
#2
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regulator
The regulator is a solid state thingie--you can not use an automotive type because alternators produce alternating current and a tractor charge system produces direct current.
S/T
S/T
#3
I don't think I ever saw a small engine alternator produce direct current. They produce alternating current and rectify it either by means of a diode inline or in the regulator to convert it to DC. I would suspect the battery given your description of the problem.