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Electric4Me
Posts: 533
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Delivery Date: 08 Apr 2011
Leaf Number: 772
Location: Union City, CA

Re: Spare Tire Carrier

Thu May 19, 2011 8:39 am

TonyWilliams wrote:
Herm wrote:How about a place to bolt-on a towing hitch?.. for a small trailer.

Tony, you plan to reinstall the rear underbody shield after you mount the spare?
Trailer hitch is in the plan !! Mostly for bike racks, wheel chairs, rack for hauling bags of messy stuff that you don't want in your car (like fertilizer, gasoline cans, dirty camping stuff, etc).

Mine will be "aerospace" inspired for the lightest weight. Virtually anything else offered is typically a HUGE, overbuilt hunk of steel, and they're always heavy. You're never going to haul a heavy trailer with the LEAF.

I do plan to reinstall the rear under-body panel.
My bike rack hitch is 13 lbs net, but I prioritized stiffness over extreme light weight (so that it wouldn't sag with 4 bikes or extra cargo loaded on).
See Christopher's post here for some video: http://www.mynissanleaf.com/viewtopic.p ... 2&start=20
How often do you plan on hauling gasoline cans?? :lol:

garygid wrote:With care cutting out the "30-inch hole" in the rear under-body panel, the cut-out piece could be used as a "cover" for the hole. It could be fitted back in nicely, perhaps using "clips" to hold it onto the rim of the new "wheel tub".

Then, lowering the tire/wheel might be enough weight to pop the clips out, and the "cover" (and clips) could be replaced later when the car is on a rack.

The airflow under the car will be faster than the speed of the car, and buffeting (caused by the edges of the large cutout) could be a problem, possibly ripping off the remaining part of the rear under-panel, or causing severe buffeting noise.

It might also create substantial drag, possibly by changing the carefully-designed turbulant airflow at the high-drag back-end of the car.
Gary, what you suggest here shouldn't be hard to do, but will likely affect the cleanliness of the underside mechanisms (parking brake) more than the drag. I've driven around for a week with the rear under cover removed completely and couldn't tell the difference in range.

Bill
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TonyWilliams
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Re: Spare Tire Carrier

Thu May 19, 2011 10:38 am

Electric4Me wrote: My bike rack hitch is 13 lbs net, but I prioritized stiffness over extreme light weight (so that it wouldn't sag with 4 bikes or extra cargo

My bike rack is also the industrial grade 4 bike model, for a two inch receiver. I think I bought it during my 10 years in Fremont. While my hitch is still "vapor-ware", it will be plenty strong / stiff for the job.

I haven't seen your setup. I'll take a peek.

How often do you plan on hauling gasoline cans?? :lol:

As often as my many off road motorcycles, weed eater, lawn mower, etc need me to.


garygid wrote:With care cutting out the "30-inch hole" in the rear under-body panel, the cut-out piece could be used as a "cover" for the hole. It could be fitted back in nicely,
perhaps using "clips" to hold it onto the rim of the new "wheel tub".
Then, lowering the tire/wheel might be enough weight to pop the clips out, and the "cover" (and clips) could be replaced later when the car is on a rack.

The airflow under the car will be faster than the speed of the car, and buffeting (caused by the edges of the large cutout) could be a problem, possibly ripping off the remaining part of the rear under-panel, or causing severe buffeting noise.

It might also create substantial drag, possibly by changing the carefully-designed turbulant airflow at the high-drag back-end of the car.

Gary, what you suggest here shouldn't be hard to do, but will likely affect the cleanliness of
the underside mechanisms (parking brake) more than the drag. I've driven around for a week with the rear under cover removed completely and couldn't tell the difference in range.

Bill

All good points and thoughts. I honestly don't believe that there will be buffeting any more than any other car. I haven't planned a cover, but your point is well taken. Certainly not much increase in cost/labor.

dactec
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Delivery Date: 30 Jun 2011

Re: Spare Tire Carrier

Thu May 19, 2011 6:11 pm

If you are looking for an aluminum spare, search for the Mazda RX-7 spare tire. Made by Enkei, 5x114.3 pattern T135/70D16. Only thing I'm not sure of is the hub bore for the wheel and load rating.
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aqn
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Delivery Date: 30 Apr 2011
Leaf Number: 1333
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Re: Spare Tire Carrier

Thu May 19, 2011 9:25 pm

nader wrote:Does the spare clear the front brake caliper?
Not that you'd want to put the donut spare on the front, anyway.

If a front tire goes flat, swap the good rear tire to the front and put the donut spare on the rear. If you're on a flat, solid, surface, you might want to push your luck and jack the car up high enough at the front jack point to get both tires off the ground. You'd only need to raise & lower the car once instead of four times. (I carry a hydraulic jack so it'd be no biggie to raise the LEAF that high. It might not be possible with a jack from a Nissan Altima or a Toyota Camry, if the jack does not lift high enough.)
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TonyWilliams
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Re: Spare Tire Carrier

Thu May 19, 2011 10:10 pm

dactec wrote:If you are looking for an aluminum spare, search for the Mazda RX-7 spare tire. Made by Enkei, 5x114.3 pattern T135/70D16. Only thing I'm not sure of is the hub bore for the wheel and load rating.

Awesome point out. That tire would be teeny tiny in diameter, but that can be changed... or not.

The good news is that there's a WIDE range of potential tires / wheels that will work. I was trying to find the lightest weight (and this may be it).

Aren't the LEAF wheels also made by Enkei?

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dactec
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Re: Spare Tire Carrier

Fri May 20, 2011 11:11 am

TonyWilliams wrote: Aren't the LEAF wheels also made by Enkei?
Image

Assuming that is the back of an Leaf wheel, than yes. You can see the Enkei stamping on the lower left corner spoke. Enkei actually makes a lot of the cast OEM wheels for Japanese vehicles.

The Leaf wheel specifications 16 x 6.5 with +40 offset.
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philaphonic
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Re: Spare Tire Carrier

Fri Aug 19, 2011 9:16 pm

any update to this spare tire carrier?
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TonyWilliams
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Re: Spare Tire Carrier

Fri Aug 19, 2011 9:20 pm

philaphonic wrote:any update to this spare tire carrier?
I'm on revision #... I don't remember how many. I'm still tweaking!!

Naturally, what should have been a week project has turned into about 3 months, but it's not forgotten, and will be done!!

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philaphonic
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Re: Spare Tire Carrier

Sat Aug 20, 2011 10:26 pm

TonyWilliams wrote:Naturally, what should have been a week project has turned into about 3 months, but it's not forgotten, and will be done!!
I hear ya, Tony! If I had a nickel for every project of mine that progressed like that, I'd be able to buy a Volt, too. :D
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Got a Flat Tire Today

Wed Aug 24, 2011 7:28 pm

Just before 7002 miles, the low tire warning went off. My first thought was that those things never work right, and kept driving. Car started pulling to the right, so I knew it was the right front tire; sure enough, it had about 10 psi in it, and hissing pretty good.

I got to mount the spare tire "for real". I have two, so I tried the early 2000's Nissan Quest. There was some noise, so I took that off, but couldn't find the source of the noise. Then I mounted the 2006 Maxima spare, and put the car in Neutral (with wheels blocked and parking brake on) to check that it spun freely. Then, drove to the tire shop for repairs and tire rotation.


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