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Noel_T Got the keys
Joined: 05 Aug 2006 Posts: 42 Location: Between Romsey & Riddells Creek north of Melbourne
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Posted: Wed Mar 18, 2015 9:11 pm Post subject: ESM supplied regulator is broken |
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I fitted a ESM supplied regulator and all was good. After about 6 months (probably drove the car about 6 times) it stopped working.
My auto-elec tells me that there are 2 broken wires in the rotor, one of which he cannot get at without major surgery.
I am looking at options:
a. Get it fixed - cost unknown
b. Get another ESM supplied alternator. The first one cost me GBP124 delivered which is approx. AUD240
c. Source another type that fits.
I have done a search here and there are a couple of alternative models mentioned.
What do you reckon is the best way to go now. If I can get it fixed for less than $240 I guess that is the easiest solution. A change to another type would be OK if it didn't require customisation to fit.
Anyway I'm seeking recommendations and opinions.
Noel
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Scouse moderator
Joined: 15 Sep 2003 Posts: 5266 Location: Wollondilly, NSW
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Posted: Thu Mar 19, 2015 7:00 am Post subject: |
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In the old days, we just used to go to a Mini wrecker & get an alternator & bracket to suit. It would cost a lot less than $240.
What brand is the ESM alternator?
Maybe there's a replacement regulator available if you do a bit of Googling.
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jax overdrive
Joined: 19 Feb 2007 Posts: 89 Location: Melbourne
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Posted: Thu Mar 19, 2015 4:53 pm Post subject: |
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Apparently a Sigma alternator is an easy fit. Theres a post about it somewhere cheers JohnG
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jimmy_d Full Licence
Joined: 29 Aug 2009 Posts: 322 Location: Melbourne eastern suburbs
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Posted: Thu Mar 19, 2015 5:29 pm Post subject: |
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Surely the ESM unit would have a warranty if its only 6 months old and they should carry the costs although I doubt they would see it that way!
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John Ballard valued contributor
Joined: 11 Feb 2004 Posts: 2646 Location: Dubbo NSW
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Posted: Fri Mar 20, 2015 10:32 am Post subject: |
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I am using a Sprite/Midget one Mini Morris 1100 etc are OK
Try Colin Dodds Sprite Parts/ Mini Wreckers or e-bay.
I bought a Mini one with brackets for $40.Hab to have diodes fitted but that was only $60.
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Noel_T Got the keys
Joined: 05 Aug 2006 Posts: 42 Location: Between Romsey & Riddells Creek north of Melbourne
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John Ballard valued contributor
Joined: 11 Feb 2004 Posts: 2646 Location: Dubbo NSW
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Posted: Fri Apr 10, 2015 12:54 pm Post subject: |
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You do not use or need a regulator with an alternator as the regulator is built into the alternator.
My Sprite unit only has one large and one small wire that were used on the old generator.
With mine I took the inside out of the regulator and left the box with terminals there.
I joined the terminals together on the rear with copper wire, just to look original.
A1 and A join together then F and D join, terminal E is connected to frame Earth/Neg) all on the back
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Noel_T Got the keys
Joined: 05 Aug 2006 Posts: 42 Location: Between Romsey & Riddells Creek north of Melbourne
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Posted: Fri Apr 10, 2015 4:42 pm Post subject: |
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John,
Thanks & yes I had done that when I installed the ESM alternator. My old regulator is now just a terminal block for the wires.
My query is really just trying to identify what the terminals are on the new alternator so that I can hook them up correctly.
I am satisfied that Pin 2 is the main output. Just wondering what Pin 1 & 3 are.
Noel
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Noel_T Got the keys
Joined: 05 Aug 2006 Posts: 42 Location: Between Romsey & Riddells Creek north of Melbourne
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Posted: Fri Apr 24, 2015 10:04 am Post subject: |
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I have had a good look at regulator connections in general via that authoritative research tool (Dr. Google) and the consensus seems to be that the self-regulating alternator has 3 connections.
One goes to the battery +Ve for charging, on supplies power to the alternator as an initial current to get the coils excited and one is used to power the IGN light.
In my image above Pin 2 would be the output to the battery.
Am I going to do any damage by testing the alternator in-situ by putting 12V onto each of the other two pins in turn while measuring the output to decide which requires the initial 12V to get it excited?
All advice welcome
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Paul M valued contributor
Joined: 29 May 2004 Posts: 380 Location: Adelaide
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Posted: Fri Apr 24, 2015 11:31 am Post subject: |
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Noel, I reckon that the IGN light provides excitation for the alternator. Pin 2 is B+, battery, and I would guess that Pin 1 has IND next to it under the plastic. Have you taken the cover off and had a look? Most internally regulated alternators I have seen have only two wires
Hope this helps
Cheers, Paul
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