10-21-2009, 05:39 PM | #1 |
Getting Wild
Join Date: Jun 2008
Posts: 80
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1989 charging system
I just got this thing and it needed some wires repaired, (melted together) fixed that and then it wasent charging,replaced voltage regulator. now its charging too much, 16 volts! any ideas on what to look for next, i have new brushes for starter/generator but havent installed them yet.whats that box under regulator?.......shag
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10-21-2009, 11:54 PM | #2 |
It ain't gonna be easy.
Join Date: Apr 2008
Location: St. George, SC
Posts: 1,480
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Re: 1989 charging system
From the service guide:
Check for charging voltage as follows: 1) Raise the vehicle (see procedure in Section B) so that both rear wheels are free to rotate. 2) With the engine off, measure the voltage at the battery’s terminals by placing the negative (-) probe on the negative (-) post and the positive (+) probe on the positive (+) post of the battery. Note the reading. 3) Attach the DC voltmeter across the regulator’s red and black leads. 4) Start the engine and accelerate to governed speed. 5) The meter should read higher than before starting the engine. In a reasonable amount of time, the reading should settle between 14 and 15 volts, indicating the regulator is functioning properly. 6) If no increase over battery voltage is observed, there is a malfunction in the charging circuit. 7) If the reading is above 15 volts, check to assure the wiring harness and generator field winding (green lead) is not grounded. If it is not, replace the regulator. If the reading is below 14 volts, disconnect the regulator’s green field wire from the system harness. Temporarily connect the green field wire to ground. If the voltage rises above its prior reading, replace the regulator. 9) If the above procedures do not correct the problem, check for faults in the vehicles wiring harness and/or generator. |
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