[Tigers] Electrical Issue

[James Lindner]

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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