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Re: Life with Chevy Bolt EV

Posted: Fri Sep 14, 2018 8:41 am
by jray3
PV1 wrote:Calling around to different dealers, the price of one factory wheel ranged from $395 to $800. I ended up buying a full set of aftermarket wheels for $700, which gives me a full spare and two winter rims from the remaining 3 OEM wheels.


After hitting a big block of wood, one busted wheel/tire, a re-alignment and a possible wheel bearing as the only casualties speak well of the car's durable suspension. I guess the only fault besides the trucker who lost that block would lie with GM dealer parts pricing! It is absurd that you can buy an aftermarket set of new wheels for less than the price of a single replacement.

Was there ever a resolution to the 'ice trough' that kept windshield wipers frozen up in winter?

Re: Life with Chevy Bolt EV

Posted: Fri Sep 14, 2018 12:43 pm
by PV1
I agree. I think that if the outside edge of the wheel hit the wood, it would've been worse. The wheel splitting absorbed a lot of energy.

As for the ice trough, my solution has been to turn the wipers on delay (which parks the upper wiper slightly above the dashboard), shut the car off, and leave my Litecoin miner running in the car all night. It keeps the windows clear, the interior heat-soaked, and actually transmits a bit of heat into the battery through conduction (the back seat sits right on top of the battery).

A couple rounds of pre-heating with the wipers left on also does the trick, but having a small heat source in the car all night allows the whole windshield to warm up and prevent snow from accumulating in the first place. Plus, the litecoin miner is more economical than a resistance heater :ugeek: .

Re: Life with Chevy Bolt EV

Posted: Thu Oct 25, 2018 12:15 pm
by PV1
It's been a while, but the Bolt is now fully repaired. Two new tires (one necessary, the other due to front right wheel/tire becoming a full spare), 4 new, aftermarket wheels, an alignment, and a new wheel bearing. Total cost - $1,400, though I gained a full spare tire, two winter rims, and a 6" X 6" X 12" wood block.

For my Birthday, I got the false floor kit, which the spare tire, jack, and charging cords all fit under neatly. This kit covers the rear cargo well and gives the Bolt near-flat floor cargo capacity with the rear seats folded down.

Re: Life with Chevy Bolt EV

Posted: Fri Oct 26, 2018 8:52 pm
by rmay635703
phb10186 wrote:
4. It would be wrong to believe that a company like Toyota will not have been working very hard behind the scenes to perfect BEV technology.


They have been quite anti-EV.
Their leadership has been quite vocal about this.

https://www.google.com/amp/s/insideevs. ... -case/amp/

Must be a reason.


Though I agree proper self driving in 2 years is a joke, maybe 20 or more.

Re: Life with Chevy Bolt EV

Posted: Sun Oct 28, 2018 1:14 pm
by PV1
Toyota is anti-EV because they believe in Hydrogen more, and they don't consider Hydrogen cars to be EVs (however, the only difference is they have a fuel cell instead of a lithium ion battery, though FCVs still have a smaller battery pack). They were the ones to introduce Hydrogen cars back in the early 2000's to justify ending the RAV4-EV, and recently they ditched the RAV4-EV effort for the Mirai.

Re: Life with Chevy Bolt EV

Posted: Tue Oct 30, 2018 6:30 am
by JoeS
I'm presently visiting in Medford, Oregon, where my brother-in-law lives, as does my wife's mom. A year ago I talked him into getting a Bolt which he and his wife love and he's made a successful 800-mile round-trip down to the SF Bay Area to visit his daughter in it - but what a hassle fraught with unknowns and and a few slower (25kW) chargers, compared to the Tesla. The good news is that the higher-power DCFC infrastructure is expanding and including both CCS and CHAdeMO, although still not enough to allow the i-MiEV to traverse California up/down the major north-south Interstate 5. I am soooo envious of the Bolt's regen paddle and one-pedal driving being able to completely stop the car, and sure wish we could hack the i-MiEV controller to do that.

Re: Life with Chevy Bolt EV

Posted: Mon Jan 14, 2019 8:08 am
by PV1
So, just a quick warning to Bolt owners. After watching this teardown video, it appears that because of an apparent bad decision in firmware, actual damage to the drive unit can occur if one coasts too long in Neutral. This is because the entire drive unit is lubricated and cooled internally by a 12 volt oil pump. When the car is in Park or Neutral, this pump apparently shuts off and removes lubrication from the bearings. Most bearings and the gears can be splash lubricated with the gears spinning even without the pump, but there is one bearing on the backside of the electric motor that loses its lubrication. I'm trying to find a good way to confirm if the pump shuts off in Neutral or not.

https://youtu.be/APhRPSdmdmk

On a happier note, this channel has some really insightful videos on the Bolt's systems.

Re: Life with Chevy Bolt EV

Posted: Tue Jan 15, 2019 3:02 pm
by JoeS
PV1 wrote:So, just a quick warning to Bolt owners. After watching this teardown video, it appears that because of an apparent bad decision in firmware, actual damage to the drive unit can occur if one coasts too long in Neutral. This is because the entire drive unit is lubricated and cooled internally by a 12 volt oil pump. When the car is in Park or Neutral, this pump apparently shuts off and removes lubrication from the bearings. Most bearings and the gears can be splash lubricated with the gears spinning even without the pump, but there is one bearing on the backside of the electric motor that loses its lubrication. I'm trying to find a good way to confirm if the pump shuts off in Neutral or not...
Even though they're painfully lengthy, I always enjoy watching this expert's videos. In this case, he complimented the Bolt design ingenuity in a number of areas.

The possible bearing damage resulting from coasting in neutral in the Bolt is frightening to those of us who do this all the time. PV1, please update this when you find something more definitive - almost worth sending an email to prof. John Kelly at Weber State U. for his opinion.

Re: Life with Chevy Bolt EV

Posted: Wed Jan 16, 2019 6:48 am
by ChrisEV
PV1 wrote:Toyota is anti-EV because they believe in Hydrogen more, and they don't consider Hydrogen cars to be EVs (however, the only difference is they have a fuel cell instead of a lithium ion battery, though FCVs still have a smaller battery pack). They were the ones to introduce Hydrogen cars back in the early 2000's to justify ending the RAV4-EV, and recently they ditched the RAV4-EV effort for the Mirai.


I think the Japanese government is very big with incentives toward hydrogen to promote energy independence in Japan.

I don't think it's anything personal, they're just going after the money.

Honda is the same way.

Re: Life with Chevy Bolt EV

Posted: Wed Jan 16, 2019 12:02 pm
by Don
Honda sold CNG cars for several years, but I think only on the West Coast. That seemed like the ideal solution to me at the time (still does, actually) because you could refuel in your own garage and have 250 miles of range or more and no road use taxes on the fuel

Don