Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-23-2008, 09:36 PM   #691 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 663 Times in 388 Posts

__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-28-2008, 11:49 AM   #692 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,527

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

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
Thanks: 4,078
Thanked 6,976 Times in 3,612 Posts
Ben, looking at the damage from that latest video, and the way the lovejoy failed, I wonder if the clutch hub splines were sheared off by excess play.

As the lovejoy was wearing and the amount of play between the two halves was increasing, the motor would "wind up" a bit before smacking the transmission side hard every time you hit the accelerator, transferring a lot of torque onto those splines. THEY CANNA TAKE IT, JIM!

Just a thought. Bummer!
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
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 11-28-2008, 12:23 PM   #693 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,362
Thanked 1,202 Times in 765 Posts
Were both halves of the Lovejoy firmly sandwiched all the way together? If you are using a tapped hole with an allen head bolt to hold the lovejoys in place on each respective shaft, could one have loosened and the lovejoys slid slightly apart, causing way more stress on the lovejoy teeth and spider? Even a couple millimeters would transfer the whole force to a smaller piece of the spider. Also, once there was some wear, like Darin was saying, each acceleration was like a running start for motor lovejoy teeth to bash into transmission lovejoy teeth. That could explain why the clutch plate spline was stripped too, because it isn't meant to have running start bangs, but a smooth increase of force.

That guy in New Zealand had a problem with the bolt that was supposed to hold the coupler to the transmission shaft. Also, the guy from Mississippi, Norm, that has like 63 videos on youtube of his EV conversions had a problem with the lovejoys separating some. He suggested to me that I re-tap the lovejoy hole, with a larger diameter, and add another tapped hole 180 degrees around the same lovejoy half.

I noticed that the $300 curtis (maybe all curtis) starts with a bit of a jerk each time, so that doesn't help, either. (or is that just mine?)
__________________
kits and boards
  Reply With Quote
Old 11-28-2008, 12:35 PM   #694 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 663 Times in 388 Posts
I think there was too much play AND misalignment.

The idea of tapping a second allen screw hole on the opposite side of the coupler has merit. I noticed that tightening down the set-screw would actually throw the coupler off center a bit.

I have also heard of using the permanent Loc-Tite to position the coupler in the right spot.

Most controllers can be adjusted to not give to much force right away. I did finally get my new pot box (throttle) which I am hoping will give much smoother controller over acceleration than the forklift pot box did.
__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Old 11-28-2008, 01:20 PM   #695 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,527

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

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
Thanks: 4,078
Thanked 6,976 Times in 3,612 Posts
Our lovejoy separated slightly as well at one point, and that allowed the motor half to go out of alignment (since it just floats inside the female splined motor shaft) and rub on the motor cap, wearing both pieces slightly.

We took steps to prevent that again - with a spacer inside the female shaft, loctite & jbweld.

Also, I sometimes used to be able to hear a very small amount of running start "slap" which I figured was in the motor splines. The jbweld fixed that up. Quiet power on/off transitions now.

You guys with your GRRR POWER 72v 300A cars have to be more careful than the wimpy ForkenSwift though.
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
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 11-28-2008, 01:29 PM   #696 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2008
Location: Carson City, Nv
Posts: 113
Thanks: 5
Thanked 26 Times in 21 Posts
A set of snap ring grooves cut on the input spline of the tranny will hold the coupler in place. I could do it at home with a home made fixture but you absolutely need a sharp corner on the botton of the groove to make it work. If you do it with a set screw, be sure to drill a dimple in the input shaft so it will not work loose due to slight misalignment. Locktite it!

Do you still need a clutch hub??? I am looking thru my pile of spares...
  Reply With Quote
Old 11-28-2008, 01:52 PM   #697 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2008
Location: Carson City, Nv
Posts: 113
Thanks: 5
Thanked 26 Times in 21 Posts
I have 2 clutch disks...can someone call Ben and tell him to check his private message? My cell phone number is on it. I'm ready to box and ship them at my expense TODAY if I get the go ahead and an addrerss.... Kim
  Reply With Quote
Old 11-28-2008, 02:01 PM   #698 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,832

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,362
Thanked 1,202 Times in 765 Posts
Quote:
Originally Posted by kimer6 View Post
I have 2 clutch disks...can someone call Ben and tell him to check his private message? My cell phone number is on it. I'm ready to box and ship them at my expense TODAY if I get the go ahead and an addrerss.... Kim
You EV people are so kind!!!!! It makes me just really feel in the Christmas Spirit!!
__________________
kits and boards
  Reply With Quote
Old 11-28-2008, 02:21 PM   #699 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 663 Times in 388 Posts
Kimer6 is sending me his old Metro clutch disc hubs!

In fact, he's even donating shipping to the project!

Thanks Kim!!!

Much Appreciated!
__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Old 11-28-2008, 04:41 PM   #700 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2008
Location: Carson City, Nv
Posts: 113
Thanks: 5
Thanked 26 Times in 21 Posts
Ben, 2 splined hubs are on their way overnight Express....Merry Christmas! ...Kim

  Reply With Quote
Reply  Post New Thread


Tags
electric car, electro metro, geo, metro



Similar Threads
Thread Thread Starter Forum Replies Last Post
Metro taller transmission swap thread: +5% efficiency gain (taller final drive) MetroMPG EcoModding Central 36 02-11-2015 12:08 PM
Daox's 1997 Paseo Build Thread Daox EcoModding Central 241 11-13-2013 12:23 AM
DPoV's Jeepin' Build Thread DifferentPointofView EcoModding Central 26 12-16-2009 05:31 AM
The UnNamed Wagon's build thread - Let it begin! Work in Progress XFi EcoModding Central 38 08-01-2008 01:21 AM
Margo II: the build (project thread) AndrewJ Alternative Transportation 26 04-23-2008 02:23 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com