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FBH44

Well-known Member
I thinkm y 12 volt volt regulator is not working. Doewsn't seem to keep battery charged. Is there a way to masure it or test the regulator?

Also, my new plugs get black and oily looking. The engine does not smoke blue or white or black smoke, or lose power. What can I do to keep plugs clean? I have carb adjusted so it is not too rich already.
 
QUESTION

Is there a way to masure it or test the regulator?

One indication of charge rate is to measure the BATTERY voltage when shes not running n just setting there, should be around 6.3 volts, but then runnign at fat RPM IFFFFFFFFFF the charging system works it should raie to at least 6.5 to near 7 volts depends on RPM and condition of genny and battery

The VR cant work right UNLESS ITS WELL GROUNDED check that

Sure it has a VR instead of a cutout relay and LHBD light switch charge controller???

See my TTOUBLESHOOTING PROCEDURE linked below to diagnose charging problem and see if cause is genny versus VR or relay problem

QUESTION on plugs

It can reduce premature fouling is you dont run carb richer then necessary,,,,,,,,,,,use hotter heat range of plugs,,,,,,,,,use wire core plug wires,,,,,,,,,,use T stat or radiator air restrictions to get and keep temp up to 180 or so,,,,,,,,,,good hot spark,,,,,,check timing,,,,,,,try NON resistor plugs,,,,,,,,

http://www.ytmag.com/cgi-bin/viewit.cgi?bd=farmall&th=665110

John T
John Ts Charging Troubleshooting
 
Couple of things on charging - could be the battery depending on how old it is. If it charges up when running and looses charge sitting you either have a bad battery or a short somewhere draining the battery. If its an older battery it will loose cranking power when it gets cold. You can check the voltage at the battery with the tractor running to see if its the charging system. I forget the exact voltage but I think on a 12 volt system it should read around 13-14 volts. Do have an amp meter on the tractor - if so does that show a charge. One way or another you need to find out if its the charging system or the battery or maybe both.
 
A bad voltage regulator can drain the battery while the tractor is off. I forget which set of points does what, but the one that is supposed to pop open when you shut the tractor off can stick.

As far as the plugs, are the plugs sooty or oily ? Soot is fuel, oily is, welll, oil.

Greg
 
Use a volt meter and check your charging voltage across the battery terminals with the engine at 1/2 throttle or better. Should see 14.0 to 14.5 volts on your volt meter. Your regulator is ok if you have that much charging voltage. You should also check your battery's specific gravity in each cell using a hydrometer and compare the readings. Should be in 1.250 range or better. If one is 1.100 you have a dead cell and the battery needs replacing. You can get a hydrometer at most auto parts store and it will also check your antifreeze to see if you have enough protection against freezing. They shouldn't be that expensive. Here's the hydrometer I used at work and they gave it to me when I retired. Hal
a56445.jpg
 
Champion D23 or equivalent. The plugs aren't going to help much, If they are oily the engine is burning oil. Could be valve seals, I vote for rings.
 
I put in a ground wire between the regulator ground and the battery ground. Will start her up shortly and see.
The plugs are Champion D-21's. I think they're fariyl new. The plugs look wet with I pull them out, the bent-over electrode is baked-on crusted black stuff, the interior of the metal body is black baked-on stuff, and the cetner seramic is dry and black.
Mainjet of the Carb is about 1 turn open.
Advice is appreciated. Thanks.
 
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