Badger_McLetcher
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| posted on 31/1/16 at 11:31 PM |
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Alternator Wiring - 2 terminal Denso
'Evening guys, I managed to get a cheap denso alternator off Ebay from a 1.0 litre suzuki swift (2003); it has two terminals on it (one M5 and
one M8); can I assume that the M5 is the earth and the M8 is live? Or am I way off base with this? Now it's come around to wiring it up I want
to ensure I'm not going to do something stupid!
An example of the alternator here:
VEAAOSwwE5WYGX0" target="_blank">http://www.ebay.ie/itm/Suzuki-Swift-1-0-Alternator-31400-80E1-63321774-/181950262609?hash=item2a5d14ad51:g VEAAOSwwE5WYGX0
If disfunction is a function, then I must be some kind of genius.
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NigeEss
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| posted on 31/1/16 at 11:52 PM |
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I thought the big fat wore went to the battery and the smaller one to the battery light which then goes to an
ignition switched live.
So effectively the small wire is an alternator switched neutral.
But as I'm crap at wiring, mainly due to being colour blind, I'll wait for an expert to concur. 
Time is an illusion. Lunchtime doubly so.................Douglas Adams.
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theprisioner
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| posted on 1/2/16 at 09:50 AM |
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I thought all Denso alternators had at least 3 terminals, obviously wrongly the Westfield site has a very useful tutorial that I have used many times
with success:
http://westfield-world.com/daihatsu_alternator.html
http://sylvabuild.blogspot.com/
http://austin7special.blogspot.co.uk/
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Dick Axtell
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| posted on 1/2/16 at 10:05 AM |
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Hi. I asked for similar advice, not so long ago. Check out this thread - some very specific and useful advice here: -
http://www.locostbuilders.co.uk/viewthread.php?tid=201340.
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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obfripper
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| posted on 1/2/16 at 07:12 PM |
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If the link is correct, you have a marelli alternator rebadged as a denso, which will be wired m8 terminal to battery, m5 terminal to battery warning
lamp/exciter circuit.
It's from a european produced suzuki with eu sourced components, the daihatsu/toyota/jap suzuki version is a different alternator with slightly
more complicated wiring.
Dave
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Badger_McLetcher
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| posted on 1/2/16 at 09:05 PM |
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quote:
Originally posted by obfripper
If the link is correct, you have a marelli alternator rebadged as a denso, which will be wired m8 terminal to battery, m5 terminal to battery warning
lamp/exciter circuit.
It's from a european produced suzuki with eu sourced components, the daihatsu/toyota/jap suzuki version is a different alternator with slightly
more complicated wiring.
Dave
The link indeed is correct, I did wonder why it said "Made in Italy"! Thought they may just have an outpost plant there or something.
Thanks for the info; it makes more sense now that I think of it that it earths via the block. Would the exciter circuit just be a wire from the
ignition switch via a lamp?
If disfunction is a function, then I must be some kind of genius.
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obfripper
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| posted on 1/2/16 at 10:21 PM |
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A bulb via the ignition switch will be fine, if you have an led lamp you'll need a 50ohm 5w load resistor in parallel to give the required
exciter current.
Dave
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Badger_McLetcher
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| posted on 1/2/16 at 10:28 PM |
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Excellent, thanks for that!
If disfunction is a function, then I must be some kind of genius.
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