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Mazda/Ford 70A Alt. Anyone try one?
Looks like the same wiring and mounting.
I see it's 1-1/8 inch larger case(3.93 vs 5.07). Wonder if it would fit?
DENSO 210-4108 (70 Amp) Alternator
used on:
FORD PROBE 2.2L L4 1990-1992
MAZDA 626 2.2L 1990-1992
MAZDA MX-6 2.2L 1990-1992
<!-- m --><a class="postlink" href="http://www.autozone.com/autozone/parts/Duralast-Import-Alternator/_/N-9ci9i?itemIdentifier=18228_188531_4424_&vehicleIdForService=185350771&_requestid=32695">http://www.autozone.com/autozone/parts/ ... stid=32695</a><!-- m -->
“A good traveler has no fixed plans,and is not intent on arriving”~ Lao Tzu ~
[Image: 16hvxut.jpg]
[Image: 15r1pnl.jpg]
In Stable
1985 GL1200 Interstate(RIP)
2003 Yamaha Midnight Venture
2008 Yamaha V-Star 650(Wife's Bike)
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#1 11-20-2011, 02:01 PM,
Anything will fit depending on how much your willing to do to make it fit :lol:
The geo was a tight fit on m buddies 84I and even tighter on my LTD
Ghost.President: G.M.M.C.C.
Member:Patriot Guard Riders
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#2 11-20-2011, 08:07 PM,
from the picture i doubt it,considering that the geo alt is about the same price plus a smaller core charge i'd leave well enough alone,now if you could find one in a junkyard or "borrow" one that's dead from a repair shop it would be worth trying to fit it,timewise go with the geo,you'll have a hard time trying to max out the 50 amp it puts out,with all the stuff i've tried it was easily putting out 32 amps at 14.2 volts,plus the geo comes with the correct serp belt pulley installed
but go for it if ya want and advise us if its successful
1987 Aspencade 129K
1986 SEI 93K
2014 Tri-Glide HD 17K

Hancock,MD
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#3 11-21-2011, 04:37 AM,
My step son is a GM at a auto parts and I could get one for much cheaper and no core charge but I think you are right, stay with what works already. Mine has the small crank pulley and it's just not charging enough below 2000 rpm. I have to shut off the HID driving lights when at low rpm and even then the grip heaters and electric gloves etc pull the battery down pretty quick. I think I will change to a larger crank pulley (Maybe the 5" serpentine I posted on page 10 in the "What application crank pulley have you used"section here when I change my timing belts. I only have a little over 35,000 on the timing belts now. I may change them early or put up with the low charging for a while longer. I haven't decided yet.....
“A good traveler has no fixed plans,and is not intent on arriving”~ Lao Tzu ~
[Image: 16hvxut.jpg]
[Image: 15r1pnl.jpg]
In Stable
1985 GL1200 Interstate(RIP)
2003 Yamaha Midnight Venture
2008 Yamaha V-Star 650(Wife's Bike)
Reply
#4 11-21-2011, 07:06 AM,
<!-- m --><a class="postlink" href="http://www.krcpower.com/catalog_i6511658.html?catId=353639">http://www.krcpower.com/catalog_i651165 ... tId=353639</a><!-- m -->

Needs a bushing
The only stupid questions are the one's that are not asked.

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#5 11-21-2011, 07:28 AM,
Just a thought but have you checked the condition of your battery? Im running a 1 to 1 ratio on a with a geo alternator which kicks in at 1200 rpm. If your battery has a weak cell that cell will draw a lot of your charge away from everything else.
Ghost.President: G.M.M.C.C.
Member:Patriot Guard Riders
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#6 11-21-2011, 10:15 AM,
I have KRC make the crank pulleys for my mounting kit. It is the same as the one posted by Tricky, but with the correct size hole & boss so no bushing or spacers are needed.

Poorboy


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#7 11-21-2011, 12:25 PM,
Well I don't know if the Alt is bad,under driven or a combination of both. I went out and checked with my Motorola voltmeter and at the battery I get.....
---With headlight off---
13.6 with bike not running
14.3 @ 1000 rpm (Idle)
14.3- 14.5 anything above 1000 rpm
------Headlight on low beam(no other extra lights on)------
11.0 @ idle
12.0 1500 rpm
15.5 then drops to 13.8 @ 2000 rpm
14.3 2500 rpm
14.3-14.8 3000 rpm and above
When I turned the driving lights on with headlight on at idle,the voltage dropped to a steady 9 volts for a couple of seconds until the ballast turned the driving lights off then voltage would climb back up to 11 volts.
I didn't check the voltage any farther with the driving lights or other accessories turned on but everything seems to work OK above 2500 rpm's.
“A good traveler has no fixed plans,and is not intent on arriving”~ Lao Tzu ~
[Image: 16hvxut.jpg]
[Image: 15r1pnl.jpg]
In Stable
1985 GL1200 Interstate(RIP)
2003 Yamaha Midnight Venture
2008 Yamaha V-Star 650(Wife's Bike)
Reply
#8 11-21-2011, 03:25 PM,
Sounds like the alt is doing what it should do. Charging heavy when it needs too and dropping back when it doesnt. I dont have driving lights, heated gear etc on the LTD so maybe coming up with a dead battery when riding with an external is something that happens. :-\ It must or a lot of the members here wouldnt be over driving the alt unless there was a reason for it.
I freely admit im probably the dumbest person on the board as far as wings go. I do have a bit of trouble wrapping my head around a bike thats charging even 13.5 volts at 2000 rpm not starting after being ridden unless its spending an awful lot of time running less rpm than that?? :-\
Ghost.President: G.M.M.C.C.
Member:Patriot Guard Riders
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#9 11-22-2011, 01:17 AM,
ghostrider52005 Wrote:Sounds like the alt is doing what it should do. Charging heavy when it needs too and dropping back when it doesnt. I dont have driving lights, heated gear etc on the LTD so maybe coming up with a dead battery when riding with an external is something that happens. :-\ It must or a lot of the members here wouldnt be over driving the alt unless there was a reason for it.
I freely admit im probably the dumbest person on the board as far as wings go. I do have a bit of trouble wrapping my head around a bike thats charging even 13.5 volts at 2000 rpm not starting after being ridden unless its spending an awful lot of time running less rpm than that?? :-\


Unless your idling the bike for hours, if the battery is good you shouldnt be draining the battery.
I rode my bike for 2 years with th external on a 1-1 ratio, used driving lights and heated clothing etc. Never had a battery problem.

Only reason I went to the bigger pulley was that a friend gave me one. I do find it a PIA when it means I have to remove the pulley to get at the inner bolts to remove the belt covers.
The only stupid questions are the one's that are not asked.

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#10 11-22-2011, 08:44 AM,
what alternator are you using now,if its the geo it sounds like the internal regulator might be going,have never seen mine charging above 14.2v or much below 14 under a load
the 13.6 doesn't sound right unless its just come off a battery tender overnite,u might want to turn key on and wait 20 secs and if the battery is good should be in the 12.5-.6 area,if its an agm battery it will be a little higher,12.8v
is the voltmeter digital or analog,digitals are usually more reliable than analog types,you might want to check yours against someone elses
1987 Aspencade 129K
1986 SEI 93K
2014 Tri-Glide HD 17K

Hancock,MD
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#11 11-22-2011, 08:47 AM,
That little Nippondenso alternator is perfect for our 1200's. Anything even fractionally larger and you will need to do some heavy heat surgery on the lower fairing panel to make room for the larger alternator. Even if you need more power you do not need to get a larger case with the Nippendeso alternator because it comes from the factory with up to 105 amps. output from the same size case as the 50 amp. version.

If you live in town and do a lot of driving in town the 1:1 pulley ratio just does not work as my experience has shown. If you live in the county and have to do at least a 5 minutes of highway driving to get anyplace then the 1:1 ratio is no big deal because it will normally replenish charge the battery after a cold start. Living in town, I got sick and tired of my battery going dead all the time so I installed the 3.5" crank pulley and have never run the battery down at the idle speeds since even with the driving lights left on. It makes a little more noise with the larger crank pulley spinning the alternator faster but a lot less noise than I would make when the battery would go dead all the time. :lol:
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

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#12 11-22-2011, 05:23 PM,
since don pigott "poorboy" now supplies his kits with a 3.5" pulley there is not a slow speed problem anymore
1987 Aspencade 129K
1986 SEI 93K
2014 Tri-Glide HD 17K

Hancock,MD
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#13 11-22-2011, 05:30 PM,
neoracer Wrote:since don pigott "poorboy" now supplies his kits with a 3.5" pulley there is not a slow speed problem anymore

Yes, but only after I screamed and hollered at him that the small pulley did not charge enough at low speed. Don and I used to fight about this all the time way back in the early days over on the G.W.R.R.A. Classic Wing technical site. :lol: :lol:
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

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#14 11-22-2011, 07:32 PM,


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