Question about Briggs & Stratton Briggs Stratton Vanguard V - Twin Vertical Ohv Engine with Electric Start 23 Hp, 1" X 3 5/32" Shaft, ModelNo. 386777 - 0036 - E1

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18hp briggs keeps shorting voltage regulators. alt output is 30vac@3600rpm. engine is 356777 0115-e1 05110841. have no idea what is wrong.

Have installed new regulator. have checked for shorts and bare wires. this is the fourth regulator installed.

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Posted on Jan 02, 2017

miket756
  • 2702 Answers

SOURCE: Briggs and Stratton Vanguard 23Hp starter issues

take the starter off and give the bendix a realy good clean up and then splash some oil on it,,,they get very dry and sticky at times,,,you can test the starter uasing some jump leads stand on it though, dont hold it in your hands as it will spin out of your grip
hook the black lead to the caseing and tuch the red lead on the starter battery stud,,,it should spin up and strow the bendix out as soon as you take the lead off the bendix should slid back in if it dont oil it till dose also check the starter relay it could be sticking on holding the starter in

Posted on Jun 06, 2010

Testimonial: "Thank you miket756. Brand new starter that 100% bench checked. Cannot understand what problem is, I appreciate your time and efforts. Tim"

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SOURCE: Briggs and Stratton Vanguard 23Hp starter issues

The starter may need shims between the engine and starter to permit the relative gears to release. Compare the two starters, if you still have the old one, for shaft length and bendix construction. Hope this helps!

Posted on Jun 06, 2010

Testimonial: "drallim, Everything checks out, cannot believe I've received 2 bad solenoids from NAPA. I had bought a new one and exchanged it because it seemed the switch was sticking. Still have not solved problem. Thank you for your time and efforts. Tim"

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not cpu.
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Is the alternator ight coming on?
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I don''t have 1993, but here is 96:

Generator with Integral Rear Mount Regulator, Internal Fan Type With the key in the RUN position, voltage is applied through the charge indicator lamp I circuit to the voltage regulator. This turns the voltage regulator on, allowing current to flow from the battery sense A circuit to the generator field coil. When the engine (6007) is started, the generator (GEN) (10346) begins to generate alternating (AC) current which is converted to direct (DC) current by the rectifier internal to the generator. This current is then supplied to the vehicle's electrical system through the battery positive voltage (B+) terminal located on the rear of the generator. Once the generator begins generating current, a voltage signal is taken from the stator and fed back to the voltage regulator S circuit, turning off the charge indicator/lamp. With the system functioning normally, the generator output current is determined by the voltage at the A circuit. This voltage is compared to a set voltage internal to the voltage regulator, and the voltage regulator controls the generator field current to maintain proper generator output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge. With the system functioning normally, the generator output current is determined by the voltage of the A circuit (battery sense voltage). The A circuit voltage is compared to a set voltage internal to the voltage regulator, which controls the generator field current to maintain proper output. The set voltage will vary with temperature and is typically higher in the winter than in the summer, allowing for better battery recharge in the winter and reducing the chance of overcharging the battery in the summer. A fuse link is included in the charging system wiring on all models. The fuse link is used to prevent damage to the wiring harness and generator if the wiring harness should become grounded, or if a booster battery with the wrong polarity is connected to the charging system.
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  • System Does Not Charge
  • Loose or worn drive belt.
  • Open/voltage drop in Circuit 38 (BK/O).
  • Open/voltage drop in Circuit 36 (Y/W).
  • Open/high resistance in Circuit 904 (LG/R).
  • Damaged regulator.
  • Damaged generator battery


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