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Leyland S 998 fuse?
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Author:  iidannyii [ Mon Nov 19, 2012 9:43 am ]
Post subject:  Leyland S 998 fuse?
Hi there guys.

Would like to know what amperage the glass fuses should be for the accessories fuse? (i.e. indicator and gauges) It keeps blowing (15a). I've temporarily mended it by running a copper wire between the terminals, drove it for over an hour and all seems well. No signs of malfunction or burning on the wire or terminals.

Perhaps it requires a 20-35A glass fuse?

Thanks! Dan.
Author:  drmini in aust [ Mon Nov 19, 2012 10:05 am ]
Post subject: 
Both fuses in the fusebox are 35A. But 30A will work if you can't find 35A.
Author:  MiniBill [ Mon Nov 19, 2012 10:05 am ]
Post subject: 
Bridging fuses is a bad idea they are blowing for a reason.

But in my manual it says this
Main fuses (two-fuse fuse block)
Fuse connecting Rating (amp) Circuits protected
1 and 2 35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interior light, horn and auxiliary units which operate with the ignition
switched on or off
3 and 4 35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Direction indicators, windscreen wiper motor, heater blower, stop
lights and auxiliary units which operate only when the ignition is
switched on

So 35 AMP

The inline fuses are
Line fuses (two-fuse fuse block)
Rating (amp) Circuits protected
8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Side and tail lights
35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hazard flasher

Cheers bill
Author:  iidannyii [ Mon Nov 19, 2012 10:22 am ]
Post subject: 
Thanks guys. Seems that the 15A fuses in there currently are insufficient. Will get my hands on some 35A fuses, and if the problem persists ill have to troubleshoot.

Bridging the fusebox wasn't the best thing to do but as my daily is currently off the road for a few days, I needed the indicators to be functional.

Thanks again!

Dan.
Author:  miniron [ Tue Nov 20, 2012 11:20 am ]
Post subject: 
A bit of trivia re Lucas fuses just to confuse the issue. Its probably not going to make much difference unless you have 35 amps flowing through the fuse.
Lucas fuses are rated at the continuous current carrying capacity of the fuse. ie: a 35 amp Lucas fuse will carry 35 amps continuously. Most other fuses are rated at the current at which the fuse will blow. ie: a 35 amp fuse will blow once the current reaches 35amps. Its continuous current carrying capacity is less than the rated 35 amps.
There are all sorts of current versus time curves for many different fuse types.
Lucas just had to be different or maybe history left Lucas behind. There are probably current versus time curves for Lucas fuses but I haven't looked for them.

Edit: After googling for Lucas fuse ratings it seem I may have got it back to front but there seems to be a lot of misinformation out there on this subject. Does this mean I've been wrong all this time? I thought it was only the husband who was always wrong. The only variation was the depth of the wrongness.

RonR
Author:  Irish Yobbo [ Tue Nov 20, 2012 6:06 pm ]
Post subject: 
If you have a bit of time, it might be worth putting relays in the headlights and horn. I use 20 and 10 amp fuses I think, because the headlights and horn use their own. And it does improve the horn and headlights.
Author:  drmini in aust [ Tue Nov 20, 2012 6:24 pm ]
Post subject: 
Headlights weren't fused back in the 60s in many cars, the thinking was if you blew it at night you could be in deep doodoo with no lights.
Holdens had a thermal breaker? for headlights, that auto reset, so the lights got dim but not out.
Hillman Imps had NO fuses at all, in the whole car.
Fiats had 4 headlight fuses, one on each lamp for low beam, and high beam.

If you are going to fuse the headlamps, I'd use 1x 30A blade fuse for high beam, and another for low. In case...... :wink:
My `New Era' headlamp relay has these built in.
Author:  MiniBill [ Tue Nov 20, 2012 7:04 pm ]
Post subject: 
drmini in aust wrote:
Hillman Imps had NO fuses at all, in the whole car.


Omg lol " saves buying fuses i guess :-) ". Thanks for the extra info DrMiNi.
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