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by Mal Marsden - 06/16/22 7:00 pm
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Allan G
Total Likes: 4
Original Post (Thread Starter)
#869015 01/14/2022 9:50 AM
by dave j
dave j
I managed to damage the green yellow/ wire on the stretch from my alternator to the rectifier whilst trying to remove the harness tape. I have cut only two strands of the copper wire inside.

Could I leave this and put a bit of heatshrink on it ?

Or could I strip back the insulation slightly and run some solder over the damage and then use heat shrink?

Lastly I have some thinwall green/ yellow wire rated 16.5 amps with which I could replace it. Is this an adequate rating for this point?

Liked Replies
#869022 Jan 14th a 10:30 AM
by L.A.B.
Originally Posted by Allan G
The thin wall wire which Dave already has at 16.5amp will be roughly the same total thickness of the 8.75 amp wiring. Since he already has it (and I assume in the correct colours) he isn't hurting anything by using it)

I agree. You posted as I was typing so I wasn't suggesting he use 14/0.30mm only that the original and modern equivalent amp rating was/is considerably lower than 16.5A (thin wall).
1 member likes this
#869453 Jan 18th a 06:28 PM
by L.A.B.
Originally Posted by dave jones
When it comes from going from this point to the battery via the 35a fuse is 16 amp wire ok?

Yes. The fuse must be the 35A blow (17.5A continuous) type and the 35A blow fuse is used with original 14/32 8A wiring.

[Linked Image from]

The modern equivalent fuses (blade fuses etc.) are 15A or 20A as they are continuous rated.

Originally Posted by dave jones
I could use two together. When the fuse was on the negative side the original single wire was ok.

The side of the battery the fuse is on makes no difference to the amp rating.
1 member likes this
#869512 Jan 19th a 03:47 PM
by L.A.B.
Originally Posted by Allan G
As LAB said. If it only has one value, then this will be the continuous rating.

No, that wasn't what I said. A 1 1/4"/31mm glass fuse marked 35A can certainly be the blow rating.

The fuse rating can also be stamped on the metal end cap .
"These 35A fuses are marked according to the modern Lucas regime (metric / post decimalisation) system whereby the marked rating is the BLOW rating and the continuous rating is half that marked (17/17.5A (Amp) CONTINUOUS)"
1 member likes this
#869536 Jan 19th a 09:20 PM
by quinten
[Linked Image from]
old stock lucas fuses used colour coded paper along with printed ratings .
the 17.5/35 A was white , ( the instantaneous blow rating was 40 amps )
[Linked Image from]

if i was concerned with reliability i would not use an old fuse ... or old fuseholder .
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