[Tigers] Electrical Issue

[Bill Martin]

If the Generator bulb is burnt out the charging system won't work.Bill
 


     On Saturday, April 11, 2015 6:12 AM, Ron Fraser via Tigers <tigers at autox.team.net> wrote:
   

 MessageJim    I'm not the electrical guy but I had numerous problems with my generator system until I converted to Alternator. G post- ground - black wire F post - wire NG is the field A post on rear cover - wire NY is generator output - should be in the 14 to 15v range 1st - give the generator a medium smack with a hammer - if 14v or more shows up - time to rebuild the generator - the brushes are worn and hanging upIt is my understanding that generators need to be rebuilt every 30 to 40K miles. I had to run my generator system with the VR cover off - I believe it was too heat sensitive - with the cover always off I could easily clear the VR points when I lost voltage. I installed a volt meter under the dash so I always knew when the generator was not working properly. Hope that helps Ron Fraser
  -----Original Message-----
From: Tigers [mailto:tigers-bounces at autox.team.net] On Behalf Of James Lindner via Tigers
Sent: Friday, April 10, 2015 8:37 PM
To: Tiger List
Subject: [Tigers] Electrical Issue

   Hi All

I was getting my Tiger ready for the season and I noticed that I was not getting a charge at idle. The more the car warmed up, the more rpms it needed to keep the ignition lite off. Over the years I have experienced problems keeping a voltage regulator for any great length of time. They just seem to give up after not so long. This time I did pretty well…it lasted over a year. I checked the battery and generator just to be sure…the battery had a full charge and the generator was generating.

So I switched out the v/reg for one I purchased from SS as a backup last year. I have done this installation a couple of times so I was confident, even with my minimal skills.

I got the new v/reg in. Reconnected the battery but When I went to polarize it (touch F wire and B wire momentarily per Shop Manual)…nothing. I checked my connections (Brown to Batt terminal…Brn/Grn to Fld terminal…Brn/Yel to Arm terminal) all were correct. I double checked battery…full charge.

Thinking the v/reg might be bad, I reinstalled the old one…same results…nothing.

I installed new one again…same results.

The only other action I took was to disconnect the terminals on the generator and cleaned them up. I checked to make sure I reconnected them correctly.

I took a chance and turned on the ignition…dead.
 After taking a break I went back out and did some more inspection and testing. Not sure if it made a difference but I found the battery wire (brown) spade connector at the fuse box loose. I crimped it down and got a much tighter fit. The v/reg still would not polarize so I then took some readings with my multimeter. Here are the readings…   Battery…………………………………………………….12.9v Batt Term @ V/reg…………………………..……..12.9v Battery term @ solenoid……………………..…..12.9V Battery Term @ Gen (end of case)…………..0   I thought I should get a similar 12 something reading at the Batt terminal on the generator. Any advice on where to make additional tests or anything else is appreciated.    I am pretty much a neophyte at this so please type slowly.   Thanks   Jim Lindner

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