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Old 11-26-2007, 10:32 AM   #202 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
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Last 3: 70.09 mpg (US)

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12-27-2006, 11:13 Am


- Calculated the motor RPM in the video: 1387. Compare to about 2200 on the bench when not spinning the drivetrain (which has no oil in it).

- Details on the brush timing adjustment:

Above, you see a few things:

- The new set of bolt holes on the end cap (very top) which anchor the brush plate. The new holes are oblong, so some fine tuning is possible.

- The total brush adjustment was a combination of rotating both the brush plate PLUS the end cap, and you can see the old end cap bolt hole on the bottom side of the brush window.

- Lastly, I made a couple of new mini bus bars to attach the heavy field wire to the brush plate. Old bus bar sitting on top; new one shown connected in the brush window.

Above: one of the end cap bolts in its original location was snug against the left side of this brush window openings. I needed to make a little cut-out to accomodate the new hole. Easy as pie: the end cap is aluminum - so easy to cut & drill.

Don't think I posted this yet: motor in the car.
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L

has launched a forum for the efficient new Mitsubishi Mirage - fuel efficiency info for Geo Metro owners - electric car conversion on a beer budget
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