Go Back   EcoModder Forum > EcoModding > Off-Topic Tech
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-11-2019, 05:06 AM   #31 (permalink)
Master EcoModder
 
Stubby79's Avatar
 
Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,297

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 43
Thanked 384 Times in 288 Posts
Probably isn't getting reference/control voltage. See what you're reading at the harness with the ignition on (car doesn't need to be running).

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-11-2019, 08:08 AM   #32 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,586

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 66.29 mpg (US)
Thanks: 3,363
Thanked 6,159 Times in 3,192 Posts
Everything I've read says these are a "1-wire" alternators - they don't need control voltage to work. Just ground & positive cable to battery and sufficient RPM. That's why I've been testing with the control wire on & also disconnected.

Today's task: cleaning all connections & finding a shop that will test 100 alternators.
__________________
Latest mods: 3-cylinder Mitsubishi Mirage. EcoMods now in progress...
Ecodriving test:
Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
The Following User Says Thank You to MetroMPG For This Useful Post:
Xist (11-11-2019)
Old 11-11-2019, 11:51 AM   #33 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,586

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 66.29 mpg (US)
Thanks: 3,363
Thanked 6,159 Times in 3,192 Posts
Quote:
Originally Posted by redpoint5 View Post
Strange issue. I'd expect some loose connection based on the description.
^ I think we may have a winner.

I put jumper cables directly from the alt body to battery negative, and from the alt positive output to battery positive, and it seems to work. Multiple starts. Field control connected & disconnected.

Maybe not a loose connection, but corrosion is the name of the game around here. I'm cleaning connections & grounds now.
__________________
Latest mods: 3-cylinder Mitsubishi Mirage. EcoMods now in progress...
Ecodriving test:
Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 11-11-2019, 09:11 PM   #34 (permalink)
Master EcoModder
 
me and my metro's Avatar
 
Join Date: Jun 2008
Location: Oregon
Posts: 467

Economy Saturn - '02 Saturn L200
Thanks: 189
Thanked 166 Times in 132 Posts
I was never impressed with the ground cable running to the bracket on the transmission and the little body ground on the core support. I added bigger cables and bigger body grounds when I built my 91 1.3l Metro.
__________________
02 Saturn L200 5 speed- soon to be a lsj and f40 6 speed.
84 Gmc 6.5 na diesel K30 4x4
  Reply With Quote
The Following User Says Thank You to me and my metro For This Useful Post:
MetroMPG (11-11-2019)
Old 11-12-2019, 07:08 PM   #35 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,586

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 66.29 mpg (US)
Thanks: 3,363
Thanked 6,159 Times in 3,192 Posts
Buttoned up. THANKS, everyone!

Connections cleaned & re-connected. Everything seems to be working again based on multiple engine starts, though I haven't taken it for a drive yet... and after all that, I may not be driving it this winter anyway. (Still needed fixing, regardless.)

When I was banging my head against the wall trying to figure this out, a family member asked: don't you have someone you can ask for advice? And I said: of course! There are lots of smart people giving me good advice right now!

So thanks, everyone, for the help!
__________________
Latest mods: 3-cylinder Mitsubishi Mirage. EcoMods now in progress...
Ecodriving test:
Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
The Following 3 Users Say Thank You to MetroMPG For This Useful Post:
Daox (11-12-2019), redpoint5 (11-12-2019), Xist (11-12-2019)
Old 11-12-2019, 09:11 PM   #36 (permalink)
Too many cars
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,336

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 65.78 mpg (US)
Thanks: 807
Thanked 613 Times in 361 Posts
Quote:
Originally Posted by MetroMPG View Post
I may not be driving it this winter anyway.
Mirage?
__________________

  Reply With Quote
Old 11-12-2019, 11:47 PM   #37 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 9,678

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 31.32 mpg (US)
Thanks: 6,534
Thanked 1,864 Times in 1,415 Posts
Comment on the last ChrisFix video:
Quote:
Chris: It's so easy you can do it in under an hour!
Me, 10 hours later: Sobbing and cursing in front of a pile of random parts."
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
  Reply With Quote
Old 11-13-2019, 09:47 AM   #38 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 1,147
Thanks: 85
Thanked 303 Times in 259 Posts
Skills and required tools are accumulated over time. My son just took a month doing a valve job on his 4runner. He's now pretty good and fast on 4runners. Even brought back my tools, cleaned.

I now am fully skeptical of anything You tube.
  Reply With Quote
Old 11-13-2019, 10:00 AM   #39 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,586

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 66.29 mpg (US)
Thanks: 3,363
Thanked 6,159 Times in 3,192 Posts
Fumes: ask me tomorrow. :P

Piotrsko: and I am now pretty speedy at re & re'ing alternators on Metros.

I've seen more than a couple of problem alternators in all my automotive adventures, but have never seen one do this.

The bad connections appear to have been between the alt itself and the brackets. The battery negative post was a little cruddy too, but obviously not bad enough to cause starter problems.

The fun part: I also broke a bolt taking the known-good alternator off the Firefly to try on the Metro, so now I have to fix THAT too. Happily, that can wait until better weather.
__________________
Latest mods: 3-cylinder Mitsubishi Mirage. EcoMods now in progress...
Ecodriving test:
Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 11-14-2019, 07:08 PM   #40 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,586

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 66.29 mpg (US)
Thanks: 3,363
Thanked 6,159 Times in 3,192 Posts
Quote:
Originally Posted by Gasoline Fumes View Post
Mirage?

Precient.


Thread: I just bought Canada's cheapest 3-cylinder Mitsubishi Mirage

__________________
Latest mods: 3-cylinder Mitsubishi Mirage. EcoMods now in progress...
Ecodriving test:
Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
The Following User Says Thank You to MetroMPG For This Useful Post:
Gasoline Fumes (11-14-2019)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com