Saturday, April 26, 2008

Motor Mount - Part 2

I welded up the motor mount so that it's nice an solid. Next I had to drill a hole in it to accommodate those pesky bolts that run around the outside of the WarP motor. They look important, so I didn't try to remove them ; ). Of course the only place to put the motor mount is directly over a 4 of those pesky bolts. I put the motor mount in place, smeared some grease on the offending bolt head and lower the motor down to contact it. I then drilled a hole in the mount big enough for the bolt head.
Sounds easier than it was.
I then spray painted the finished mount black. I still need to drill the hole in the top part of the ring, but I was anxious to slap some paint on it.
I think the side bolt heads will fit between the ring clamp sides, but I may have to do some grinding.

Friday, April 25, 2008

Mystery of the flywheel solved!

There is little that I can do at this point without the connecting up the motor - which requires a flywheel.
I haven't been posting my ongoing attempts to find out the status of my flywheel. Let's just say I have been calling the shop weekly always getting an answering machine regardless of when I call. The machine tells me to expect a return call which never comes. I think the last time I actually heard from the shop owner was back in January...

So today, I finally made it out to the shop to confront the owner and get my flywheel back - even if it hadn't been lightened. After an hour drive I find the shop is closed. The gates were locked, the vehicles in the yard were gone as were the collection of rusty crank shafts.
Looks to me like they went out of business - which would explain the un-returned calls...
So, not only do I not have a lightened flywheel, I don't have ANY flywheel.

I got home and checked craigslist, and, like a gift from the gods of electric cars, there was a flywheel listed for sale.
Sunday, I will be $50 poorer, but will be able to move the project forward.

Sunday, April 13, 2008

Motor Mount begins


I've been thinking a lot about the motor mount. It's a pretty important part, especially since Miatas don't have transmission mounts, the motor mount secures 3/4s of the drivetrain. I went through a lot of ideas in my head until I came to this one - I think it's a good working solution.
I bought a 9" ring clamp from EV Parts when I bought the motor. It's 2" wide and made from 1/8th steel. I'm mounting it to the subframe directly between the front wheels using two rubber "biscuit" style motor mounts . I cut two pieces of angle iron about 10" long, thinned one down a half inch and welded them together into a long U shaped piece 2" wide. I then marked where the ring clamp will go and removed a semi-circle from each side. Looks pretty good. I was planning on adding some metal to extend the U up the side of the ring, but now think I should allow the ring to compress some, and this extra support would make the lower part of the ring too rigid. I didn't have a chance to weld the ring to the base yet, or drill the holes, but that will give me something to do next weekend ; )