Griffith ignition warning light coming on while driving

[simon-gjlpm]

I've had my 500 pre serp for a couple of months and it's great.
I Was driving home during the week when the ignition warning light started random flashes then a light glow, then stayed on full time, I haven't tried since but what's going on and how can I fix please.

Cheers Simon

[simon-gjlpm]

Thanks for the quick response that's great, is it ok to drive assuming it starts ok ?

Cheers Si

[simon-gjlpm]

This is all great help so I guess I need to buy a 100amp fuse it along with the alternator tomorrow what sort of fuse do I need, inline etc or does it have a name/ make

I hope to be using it tomorrow all being well

[simon-gjlpm]

Thanks everyone for your help, I didn't think it was a fuse but was hoping it would be as it's such an easy thing to fix. I have been told the pre serp griff 500 alternator is very difficult to fix or replace so I would like one stored in my garage even if I don't need it now, what's the situation ?

I really appreciate the knowledge you all have, it makes me feel much more relaxed about the TVR which I wanted for years but never felt confident enough to buy. I really like the grif as it bridges the old car experience with modern car grunt (and some) without all the driving aids that make it pointless, I feel much more relaxed about owning it because there are so many helpful people out there.

I have lots of plans for the car so will be reporting on progress as things progress.

Cheers Si

[simon-gjlpm]

Ok ordered new alternator from TVR parts on Monday which arrived wednesday which is great, fitted it yesterday evening which needed one wire connector changing, seems to be working fine, noticed battery meter is reading slightly higher which also makes me think it was the alternator anyway. Drove it to work but oil pressure gauge now not working so hoping thats a fuse ? maybe from disconnecting the battery or something. water temp etc was all fine and oil level is ok so cant be actual oil pressure of zero

Thanks for all your help, extremely helpful.

will keep posting when can. Best regards Simon

[simon-gjlpm]

Hi i have absolutely no reading on the oil pressure gauge which makes me feel a bit better as the car was used today for about 20mins without any other signs or a problem, if i genuinely had no oil pressure the engine would surely seize or least show signs of stress such as heat etc first.

Thanks for telling where the sender is though, i will order another one and then just replace it and check wiring etc etc at the same time. I am gradually changing all parts i can as i go along, so far starter, alternator, fuel return line. New alarm.
Next steps were going to be coil, fuel pump, HT leads cap etc.

just purchased a battery brain isolator as well to be fitted soon and will be ordering a hot start kit ASAP as had that issue already.

Cheers Si

[simon-gjlpm]

Excellent replies as usual many thanks, just remind me where the oil ight is, will be heading home in 30 mins and be useful to know before i set off

cheers