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986 will not charge

A

Anonymous-0

Well-known Member
Getting ready to feed cow and 986 would not start jump and work fine. Next day still would not start. Checked alt and it was not charging replaced it and still not charging. ALso replace volt meter and it still not charging. Any ideas or help would be great. PS my cows are getting hungry.
 
Poor mans test of alternator. Put a screwdriver on the back side of the alternator, when engine is not running there should be no magnetic draw from screwdriver to alternator. Start engine, if the screwdriver sticks to alternator then it is charging. What you really need is a volt meter to check voltage before starting engine and after it is running. Battery voltage will be about 12 volts and then charging voltage should jump to above 13.6 to about 14.5. The two small wires on top of alternator, number two should be live with battery voltage at all times and the number one should read voltage when key is turned on. If either one does not have voltage your alternator will not charge. A simple two dollar test light works good for checking voltage to those two terminals. They have a habit of corroding or breaking off.
 
Batteries should be charged over-night with a 10 amp charger. Check individual cells with cell tester. Should read better than half charge/ even charge on all cells. A bad cell/ dead cell will cause your trouble.
Since you replaced the alt., your trouble probably lies in the wiring.
You can stick a SMALL screwdriver in thr D shaped hole at the rear of the alt. & see if it charges. If the alt. & regulator are good, it will pick up charge with high engine RPM.
 
Thank you for all the help and ideas found a broken wire behind oil filters fixed that charging great. thanks you all again
 
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