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Old 11-26-2007, 10:32 AM   #202 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 20,785

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

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 58.31 mpg (US)
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12-27-2006, 11:13 Am

Miscellany:

- 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.
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