[koates]

Hi there, as stated by Pete the third brush is near the top of the generator with gen mounted on the V8 engine. Also the third brush is normally somewhat thinner in cross section (thickness) than the other two brushes. The brush will rotate around the circumference of the commutator by pushing on the brush holder post and not on the brush itself. Sometimes they are tight and a LITTLE tap is required. Move brush with generator rotation to increase charge amps and against rotation to reduce charge amps. Maximum safe amps setting for a 1934 generator is 14 amps but for normal daytime driving this is way to high. About 5 amps showing on your dash ammeter when running in daytime (no lights on) is plenty high enough. Remember this 5 amps showing on the ammeter is actually a generator output of around 8 amps allowing for the ignition coil current draw. This setting will not cover all the current draw of your headlights so if doing much night driving (say more than an hour) the brush would have to go up to 14 amps. If left at i4 amps in daytime with lights off then the battery will be overcharged. A "FUN PROJECTS" brand round voltage regulator which replaces the original cut out on top of the generator will overcome this drawback. You must order for POS or NEG ground regulator to suit your electrical system. Regards, Kevin.