Alternative Alternators

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Mr Bridger
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Post by Mr Bridger » Mon Sep 24, 2018 10:59 am

Last night whist driving home in the dark the red ignition light came on. Stupidly I didn’t think to check what the volt meter was reading, however the light did come on & go off irregularly. When I switched the ignition off the red light stayed on.

So, I suppose it is time for a new alternator. However, on other cars I have had bad experiences with ‘new’ or overhauled Lucas ACR units, with the diode packs going after a short time. It there a suitable replacement that people fit to their Scimitars from a modern that I could pick up from a scrapyard ?


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Post by scimjim » Mon Sep 24, 2018 11:32 am

The A127 range has an easily replaceable (and cheap) diode and brush pack?


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Post by willholderogri » Mon Sep 24, 2018 12:04 pm

I will second that try and get 55 Amp and upwards


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Post by Mr Bridger » Mon Sep 24, 2018 1:51 pm

How easy is easy? I'm ok with spanners, and even not too bad with a spray gun, but generally it's a good idea to keep me away from wires and soldering irons.....


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Post by scimjim » Mon Sep 24, 2018 2:54 pm

3 screws I think

eBay photo of diode/brush pack:
321766CA-1D3B-44F9-B68B-B87B4E82998D.jpeg
321766CA-1D3B-44F9-B68B-B87B4E82998D.jpeg (132.49 KiB) Viewed 1553 times
And back of alternator:
1E3F5CC6-FB8F-4CA9-B9E4-8743A4CE5F5B.jpeg
1E3F5CC6-FB8F-4CA9-B9E4-8743A4CE5F5B.jpeg (66.03 KiB) Viewed 1548 times


Jim King

SECURE DRY STORAGE FOR YOUR SCIMITAR

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), 1300 SS1 (Number One) & Sarah's coupe.
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Post by AJL Electronics » Mon Sep 24, 2018 4:20 pm

Fit an A127 and you will not be worrying about diode packs and regulators for quite some time.


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Post by Mr Bridger » Mon Sep 24, 2018 8:37 pm

I've had a look and my car has a Lucas LRA 101 alternator fitted. I take it that's different to the A127?

Interestingly there is a choice of A127 alternators on the market; a far eastern version for 50 quid and an Italian made one for £170! I wonder which one would be the most reliable?


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Post by willholderogri » Mon Sep 24, 2018 9:09 pm

Most 1980s fords used them I bought a new one last weekend at an automobile for my car


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Post by Mr Bridger » Tue Sep 25, 2018 7:08 am

Thanks for the assistance chaps, I've ordered an A127 (the cheap version!).


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Post by Diyhell » Tue Sep 25, 2018 8:45 am

Thinking of this myself also...can I just confirm I need the RH (Right Hand) version?


SE6a needing lots of work...

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Post by gtcse8 » Tue Sep 25, 2018 9:59 am

The BRAND NEW 75/80A ones advertised for boats are Brilliant :lol: , I have fitted quite a few and apart from the Extra wire to keep the battery topped up, which you don't have to fit if you don`t want to, which supplies 14V all the time to the battery even at low revs. :wink:
292737128400


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Post by gtcse8 » Tue Sep 25, 2018 10:05 am

Diyhell wrote:
Tue Sep 25, 2018 8:45 am
Thinking of this myself also...can I just confirm I need the RH (Right Hand) version?
Nope, you need the Left Hand version.
BUT it`s just Three nuts to undo to swivel the front mounting round to make it fit if a RH version is bought.


Mark Wilson. See the Beast on youtube under" RELIANT SCIMITAR CONVERSION LOL.,Se5,Se5a, Se6a, Two Se6b`s,1 & 1/2 GTC`s, SST 1800Ti & not a lot of sense

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Post by Diyhell » Tue Sep 25, 2018 10:16 am

Thanks Mark - that's one winging it's way to me...

BTW, I noted the recommendation on Ebay to check the wiring grade. Will the standard wiring can cope?


SE6a needing lots of work...

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Post by David Tew » Tue Sep 25, 2018 10:27 am

Diyhell wrote:
Tue Sep 25, 2018 8:45 am
Thinking of this myself also...can I just confirm I need the RH (Right Hand) version?
Mark beat me to the reply! :wink:

The attached will help explain the fitting orientation.
Alternator fixing.jpg
Alternator fixing.jpg (96.69 KiB) Viewed 1395 times


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Post by gtcse8 » Tue Sep 25, 2018 8:19 pm

Diyhell wrote:
Tue Sep 25, 2018 10:16 am
BTW, I noted the recommendation on Ebay to check the wiring grade. Will the standard wiring can cope?
YES, standard wiring should be ok. :D

BUT :idea: I ALWAYS run the extra connector from the back of the boat alternators using a fairly thick wire, 6mm seems to work ok, :!: straight to the Positive on the battery because it supplies 14v at low revs therefore charging the battery at tickover. :lol:


Mark Wilson. See the Beast on youtube under" RELIANT SCIMITAR CONVERSION LOL.,Se5,Se5a, Se6a, Two Se6b`s,1 & 1/2 GTC`s, SST 1800Ti & not a lot of sense

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