100 Amp fuse

[pwd95]

Mine has been removed altogether so...
What does it protect? & is it strictly needed?
Ta.

[gavgavgav]

Which one? (there may be 2)

[pwd95]

The one underneath near the starter.

[Dr Mike Oxgreen]

I don't think early cars had it, or am I mistaken?

[Bassfiend]

Dr Mike Oxgreen said:

I don't think early cars had it, or am I mistaken?

That's my understanding too...

I was always taught that you should fuse any power source (I.e. a battery or alternator) within six inches of the positive terminal and before it has the chance to make contact with any voltage ground.

Phil

[Simon says]

It can only protect the alternator from short circuit or reverse polarity and that is not guaranteed especially on the TVR as I have never seen it proven (wouldn't want to either) most European cars prior to 1990 never had them on the alt charging circuit (non fused) the 1st cars I ever see them on was 80's on Japanese stuff i.e Honda, Toyota etc, I can only speak from experience but every Honda that I see that had been jump started back to front had blown the main fuse thus saving the alternator and I saw many when I served my time at a dealership many by Mickey Mouse recovery drivers and naff body shops

[brett84]

mine didn't have one, so i just fitted one next to the battery terminal (1993 car)