A charging problem

[LenChim]

TVR, S2, 1989, 2.9cc. The alternator is charging but I have to rev the engine to between 2000 to 2500 rpm before the ignition light goes out, once out the alternator seems to charge all the time that is the ignition light stays out, until you turn of the engine then the whole thing starts again.
I have replace the rectifier/regulator. The pulley diameter is 3 inch (75mm). The only number I can find on the casing are DRA6000.
Any suggestions as to why I have to rev it so high before it clicks in?

[LenChim]

[Oldred_V8S]

I think this is normal behaviour on the V6.

[phillpot]

Yep, tadts


You can mess around putting another lamp or a resistor in the ignition light circuit to reduce revs required, a bit of searching should find an old post or two.

Or if you're really lucky Penelope Plopit will be along shortly to help, nothing she can't fix with half a dozen relays

[magpies]

easies thing to try is a larger wattage lamp. If yours id a 3w then try a 5w. Or as most others do is rev it a little when starting.

[Spanish S2]

Oldred_V8S said:

I think this is normal behaviour on the V6.

Yes this is normal no need to change anything.

[Bercilac]

For the record my 1988 2.8 does the same thing.

[mentall]

1990 S3C.

Ditto

[phillpot]

This could be a long list, they all do it

[LenChim]

Thanks gentlemen, I think I get the picture, it's standard for the car to need some rev's to make it work.
Many thanks for all your input 😁😁😎🏎

[v8s4me]

If you want to create a problem to solve you could fit an LED charging light

[GreenV8S]

v8s4me said:

If you want to create a problem to solve you could fit an LED charging light

Or fit a V8. May seem a little extreme, but if it saves you the hassle of revving the engine every morning I think it's worth it.

[LenChim]

Like your thinking

[v8s4me]

GreenV8S said:

..Or fit a V8. May seem a little extreme, but if it saves you the hassle of revving the engine every morning I think it's worth it.

It will sound nicer too