Author Topic: Alternator life span  (Read 2525 times)

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Offline Mettler1

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Alternator life span
« on: May 15, 2013, 11:40:47 pm »
  Anybody have an idea what the life span of the Concours alternator is?? I'm pushing a 100,000 real hard and the alternator is working fine. Rebuilding would probably cost more than one off EBay. Opinions please?? Thanks.
'94 Concours 115,000 miles-- 7th gear,2MM,KB fork brace,Over flowtubes,Stick coils,Tcro shifter,GPS,SiSF'sTorque cams,SPOOKFAK,block off plates, SS brake & clutch lines,KB risers, FENDA EXTENDA, emulators, SiSF carb Spa, Delkevic exhaust, Murphs' knee savers +grips, etc

Offline 2linby

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Re: Alternator life span
« Reply #1 on: May 15, 2013, 11:43:51 pm »
  Anybody have an idea what the life span of the Concours alternator is?? I'm pushing a 100,000 real hard and the alternator is working fine. Rebuilding would probably cost more than one off EBay. Opinions please?? Thanks.

154,000+ on mine.  Oops!  I changed over to the ZZR1200 about seven years ago. Sorry  :-[ :-[
"2linby" Get it? "Tooling by" "Everything is simple, but nothing is easy".
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Offline RWulf

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Re: Alternator life span
« Reply #2 on: May 15, 2013, 11:58:20 pm »
Not many problems with alternators. Maybe check the brushes and go on enjoying the ride.

Offline SteveJ.

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Re: Alternator life span
« Reply #3 on: May 16, 2013, 12:21:39 am »
180K on mine, and almost always burning an extra pair of 55w driving lights.

I don't have one of those fancy highfaluting ZZR alternators.

I did put a new chain on it at about 140K miles.
Yeah, if you want true ram air tuning, you better be willing to ram some air! (SiSF)
Steve J  Tavares, FL, one of the Floriduh Steves
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Offline Capo

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Re: Alternator life span
« Reply #4 on: May 16, 2013, 12:42:50 am »
I did some research after I got my zzr alt off Ebay for $100, before it arrived in working condition. I saw how to rebuild a denso alternator on YouTube and found all required parts pretty easily, but just  keep  racking up miles , it says "made in Japan" right on it I think that translates to lastalongatima


James in Tampa. Currently being enjoyed are...04 C10,  86 C10 "Cooper" , 04 Honda vt750 "Christine" . The  only previously owned needing mention would be 74 gt750, I cant believe how many of us had a "water buffalo" !!!

Offline Jorge

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Re: Alternator life span
« Reply #5 on: May 16, 2013, 03:02:50 am »
Guys, from a person who used to engineer/design competitors to Denso alternators - they are the best in the business! They build very robust, durable, reliable units. They aren't the lowest cost, just the best.
I can't imagine them taking shortcuts on motorcycle alternators compared to car units.
Jorge

Offline wild man

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Re: Alternator life span
« Reply #6 on: May 16, 2013, 11:00:58 am »
105K on mine and I'm still pushing over 14.2 volts!
Bill
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Offline Boomer

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Re: Alternator life span
« Reply #7 on: May 16, 2013, 01:22:53 pm »
169k and still working fine.
I disassembled the one I took off Sanji (120k miles) and the brushes were about half the length of the new ones I replaced them with.
I'd guess at 200k+ before they need new brushes.
The Rec/Reg part of it bulletproof as well.
Only problems I've had is the connector corrodes away where it joins the main loom.
I replaced mine with a high current screw together watertight one.
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Offline Jorge

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Re: Alternator life span
« Reply #8 on: May 17, 2013, 02:05:49 am »
Boomer,
Possibly a lot more than 200K for the brushes. As they wear, the wear rate slows down.
One thing to remember is that not the whole length of the brush may be usable. Unfortunately, I can't remember exactly how Denso brushes are made, but sometimes where the brush lead goes into the brush is unusable length; kind of like that last 1/4" of the solid anti-perspirant. The leads go into the brushes 2-3 millimeters, and if this length gets into the slip rings, it will ruin them, and the rotor.
Jorge

Offline Mettler1

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Re: Alternator life span
« Reply #9 on: May 22, 2013, 02:46:34 am »
  Thanks for the replies. Only heard of one alternator failure and that was in Oregon after the Klamath Falls Rally . Seems he smoked his alternator going home. Maybe caused by a short? It's been on my mind since then. Guess I'll just put it to rest. :great:
« Last Edit: May 22, 2013, 02:55:04 pm by Mettler1 »
'94 Concours 115,000 miles-- 7th gear,2MM,KB fork brace,Over flowtubes,Stick coils,Tcro shifter,GPS,SiSF'sTorque cams,SPOOKFAK,block off plates, SS brake & clutch lines,KB risers, FENDA EXTENDA, emulators, SiSF carb Spa, Delkevic exhaust, Murphs' knee savers +grips, etc

Offline Capo

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Re: Alternator life span
« Reply #10 on: May 22, 2013, 04:31:25 am »
On subject, not exactly pertaining to the c10. I was reading about the Campagna T-Rex 14r, it uses the zx14 motor but the same high output alternator we like from the zzr1200. Seems that there were alot of alternator failures due to water getting into the connector's rubber boot. I will be using the same di-electric silicone that I use in all my electrical connections when I put in my zzr1200 alt.
James in Tampa. Currently being enjoyed are...04 C10,  86 C10 "Cooper" , 04 Honda vt750 "Christine" . The  only previously owned needing mention would be 74 gt750, I cant believe how many of us had a "water buffalo" !!!

Offline Stasch

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Re: Alternator life span
« Reply #11 on: May 22, 2013, 12:50:42 pm »
Its not common but its not unheard of.  If you're worried about it you could snag a spare to have in reserve.

I've known of 2 C10 alternator failures - both last year. 

One was at the Eureka Springs National. 

There is a COG'r who packs spare regulator and rectifier unit in his on-board kit due a failure he had on the road.

He let us swap them in to the failed alternator but it didn't help.

One was found at a  salvage unit 120 miles away which solved the problem.  But it wasn't cheap.

Fortunately they are easy to R & R.
Stan Visser - COG#: 6830 - - C10 Stuff For Sale - Parts List

He IS a racer, hence the forward lean!!  by: Mettler1

Offline Mettler1

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Re: Alternator life span
« Reply #12 on: May 22, 2013, 02:59:17 pm »
  Gee thanks Stan!! Now I will lay awake nights wondering if I should carry more spare parts with me  ;)
'94 Concours 115,000 miles-- 7th gear,2MM,KB fork brace,Over flowtubes,Stick coils,Tcro shifter,GPS,SiSF'sTorque cams,SPOOKFAK,block off plates, SS brake & clutch lines,KB risers, FENDA EXTENDA, emulators, SiSF carb Spa, Delkevic exhaust, Murphs' knee savers +grips, etc

Offline Boomer

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Re: Alternator life span
« Reply #13 on: May 23, 2013, 03:10:40 pm »
  Gee thanks Stan!! Now I will lay awake nights wondering if I should carry more spare parts with me  ;)
Spare bike on a trailer?  :rotflmao:
Probably easier and cheaper to pack a credit card.
George "Boomer" Garratt
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Offline wild man

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Re: Alternator life span
« Reply #14 on: May 23, 2013, 04:17:36 pm »
Quote
Gee thanks Stan!! Now I will lay awake nights wondering if I should carry more spare parts with me 

FWIW I carry a spare regulator with me on long trips,  it came from a low mile alt I got off ebay a few years back...
Bill
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2003 Connie Constance 125K and counting
2007 KLR 650, 1997 ATK 605