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Jerry (Discovery1)
New Member
Username: Discovery1

Post Number: 20
Registered: 10-2002
Posted on Wednesday, March 05, 2003 - 03:20 am:   Edit Post Delete Post Print Post

Hi Everyone:

I have a 1995 disco and the alternator does not seem to be charging my battery. I actually replaced the alternator with a brand new alternator and I am experiencing the same problems. My tach works on and off and when I put my volt meter on my alternator sometimes it reads 13.79 volts and then sometimes it only reads 12.1 volts output. When this happens my tach stops working. I have already tried 2 different alternators and a new battery but it keeps happening. Does anyone have any other suggestions?

thanks
 

Peter J Blatt (Peteb)
Member
Username: Peteb

Post Number: 92
Registered: 10-2002
Posted on Wednesday, March 05, 2003 - 06:00 am:   Edit Post Delete Post Print Post

do you have a serpintine belt? if so try this if not try cleaning all grounds [major ones], batt to frame, engine to frame,
Peterbelt
 

Erik Olson (Jon)
Senior Member
Username: Jon

Post Number: 330
Registered: 02-2002
Posted on Wednesday, March 05, 2003 - 11:23 am:   Edit Post Delete Post Print Post

Should his alt be putting out closer to 15 / 16 VDC?

e
 

Joe Still (Joedisco)
Member
Username: Joedisco

Post Number: 54
Registered: 09-2002
Posted on Wednesday, March 05, 2003 - 12:28 pm:   Edit Post Delete Post Print Post

Just replaced mine. Took Nathan 2 tries to get a Bosch rebuilt to work.

First one charged unregulated from 14.2 as high a 16.1 It finally tripped out on thermal overload and quit charging (that's where your 12.1v comes from).

Take it back, send it back, whatever. The Bosch units from Nathan are 250 plus core and he's had good luck with em (other than my first one). Mine now charges nicely at 14.1v down to 13.4v after extended run.

PS I hooked a little compass/voltmeter to mine cig lighter and it really helps keep track of the charging system.

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