This appears more like a transaxle, with the motor mounted directly to
the differential. Apparently, they made ratios of up to 12:1.
Most AC electric motors can spin much faster than typical ICEs do.
12,000 RPM is not unusual. Thus, the need for a high reduction ratio
final drive.
Bill D.
On 7/6/2019 12:35 PM, Brett Davis via EV wrote:
Interesting. Once you get past 5:1 in a smallish differential (like would
fit in an S10) the pinion gear gets VERY small. Many would rather run
lower transfer case gears than go to 5.13 or 5.89. It seems like with the
torque of the electric motor, the small pinion would be even more at risk.
I just did a quick search and can't find anything lower than 5.89 but I
thought there were some industrial versions in the 7s.
Brett
On Fri, Jul 5, 2019 at 6:12 PM Bill Dube via EV <ev@lists.evdl.org> wrote:
This car has a very high ratio in the differential. Something like ~8:1.
Most ICE vehicles have ~3:1 or 4:1.
The gears may prove difficult to replace. I would start by replacing all
the standard, more ordinary parts, like the bearings. Replacing the
bearings may add some life to the worn gears.
Here is an Ebay listing for your gear box:
https://www.ebay.com/itm/azure-dynamics-solectria-at1200-gear-box-with-park-pawl-10-1/123007116723?hash=item1ca3cba5b3:g:V2wAAOSwx7VaoEH4
I would snap that up if I were you. :-)
Here is a motor and gear box from the same seller:
https://www.ebay.com/itm/AZURE-DYNAMICS-SOLECTRIA-AC24LS-W-AT1200-12-1-GEAR-BOX-/123791157714?vxp=mtr&hash=item1cd28729d2
I would also highly recommend putting in Schaeffer Oil brand gearlube,
instead of the ordinary parts store gear lube you are running. Don't
know what they put in it, but it is superior.
https://www.schaefferoil.com/
On 7/6/2019 8:23 AM, Tom Hudson via EV wrote:
Hi All,Our 1995 Solectria E10 (converted Chevy S10) has a failing
differential. Our mechanic checked it out and when he drained the lube it
was a "metal milkshake". The truck is still driveable but the diff will
eventually completely fail.According to James Worden (founder of Solectria)
these differentials were custom made by Halibrand, and it looks like
they're long gone.Does anyone know of a shop that would be capable of
rebuilding this differential?Thanks,-TomSent from my Verizon, Samsung
Galaxy smartphone
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