Re: Fuses

[rkegg465@cs.com]

Here's a question I have had for a while....... The Lucas catalog lists both 35 amp and 50 amp fuses as correct for TCs. Why? Which of the two is correct? Randy Kegg TC9690

[Bullwinkle]

Randy: NEITHER if you're using US Buss fuses! Lucas rates their fuses differently than Buss. You need to use 1/2 of the Lucas rating. So, IMO I would use a 15 amp Buss in both places. If the horn blows its fuse, then try a little larger but never go over 25 amps. Remember that a TC's generator is rated at 13 amps maximum output. Blake

[joecurto@aol.com]

First of all even though they say 35 and 50 they really a 17 and maybe a 35, those are surge amperages, the 50 would be in the horn circuit. DO NOT use real 35 and 50 amp fuses as you will burn up. New Lucas fused used to say 35 amp/ 17 amp continues. Joe curto

[rkegg465@cs.com]

I understand the issue about the fuse ratings. Let me rephrase the question: The Lucas catalog lists both LUCAS 35 amp and LUCAS 50 amp fuses as correct for TCs. Why? Which of the two is correct? Randy Kegg In a message dated 4/10/02 5:48:53 PM Eastern Daylight Time, JoeCurto@aol.com writes:

> Subj: Re: [mg-tabc] Fuses > Date: 4/10/02 5:48:53 PM Eastern Daylight Time > From: JoeCurto@aol.com">JoeCurto@aol.com > To: Rkegg465,

HREF="mailto:mg-tabc@yahoogroups.com">mg-tabc@yahoogroups.com

> > First of all even though they say 35 and 50 they really a 17 and maybe a

35,

> those are surge amperages, the 50 would be in the horn circuit. DO NOT use > real 35 and 50 amp fuses as you will burn up. New Lucas fused used to say

35

> amp/ 17 amp continues. > > Joe curto

[Bullwinkle]

Randy: When working with fuses always try the lowest rated first. Only if you have problems should you try one slightly larger. Use the 35 amp for the ignition circuit. As I mentioned in my earlier post, the larger fuse would be for the horn(s). Horn(s) take more current than most people realize. If you will check the actual wires, you will find the wire for the horn is most likely heavier than those used for the other circuits except the one going to the ampmeter. The wire for the horns on a TD are about double in guage when compared to the lighting wires. I would actually try using the smaller fuse for both circuits. If you have problems with the horn blowing the fuse, I'd switch. The TD has twin horns and draws twice the electricty. It uses the 50 amp (Lucas rating) for the horns. So, I would think the TC with its single horn would work fine with the 35 amp Lucas. Blake

[Heather Evenchick]

Folks: I am installing a new wiring loom on the TC, and would like to put fuses in all of the unfused circuits. Does anyone out there have any suggestions on what circuits should have fuses added, and what amperage fuses will be required. Thanks in advance Mark Evenchick Ottawa Canada [Non-text portions of this message have been removed]

[Bullwinkle]

Heather: I would add fuses to all light ciruits fusing them at 10 amps. However, fuses only protect from the fuse to the device. It doesn't protect any wire coming to the fuse. To completely protect a T car you have to follow the wire to it's current source and fuse it there. Also, looking at a modern car wiring diagram gives you an idea of where other fuses need to be. Other items needing fuses or fusible links are: 1) Dynamo output lead, yellow, 25 amps US 2) Dynamo Field circuit at the regulator D terminal, yellow with green, 10 amps. 3) Main power feed to the starter switch at the ammeter, brown, 25 amps. 4) Panel lights brown feed at the ammeter, 10 amps 5) Map and fog light brown feed the ammeter, 10 amps. 6) Main power feed to the ammeter at the regulator terminal A, brown with white, 20 amps. 7) Ignition warning lamp power feed at the regulator D terminal , green, 1 amp. Other's will probably say this is overkill, or there may be more. It depends on how much protection you want. Blake

[ROSS TAYLOR]

What is wrong with a 3/16 brass screw . they used to use them in the old days when nothing else was available Ross in Tea Gardens

>And where Sherrell is not quite as dependable as the nautical almanac, >it seems. > >On Nov 23, 2005, at 7:01 PM, Terry Sanders wrote: > > > Mark, welcome to the wonderful world of MG's where nothing is > > consistant.....they used what ever was at hand to keep the line > > rolling.... > > Terry > > > > >Yahoo! Groups Links > > > > > >

[D&J Edgar]

Nothing wrong with substituting a brass screw for a fuse. In fact think of the benefits. You will never have to replace it as it will last forever. Should an overload occur in the electrical circuit, the wires or components would blow first protecting the brass screw. A simple replacement of an expensive wiper motor, fog lamp or rewire job is all it would take to save you replacing the 20 cent screw. By the way Ross I have a bridge for sale. Interested in purchase? (and lest I be understood in all this, this message is all in jest and fun. No harm intended to any of our esteemed membership.) David Edgar, TC 5108 El Cajon, California

On 11/24/05 3:21 AM, "ROSS TAYLOR" rossmvt@msn.com> wrote: > What is wrong with a 3/16 brass screw . they used to use them in the old > days when nothing else was available > > Ross in Tea Gardens