".jdb." (brockmjd)
11/20/2014 at 08:00 • Filed to: None
2
12|
".jdb." (brockmjd)
11/20/2014 at 08:00 • Filed to: None | 2
| 12 |
Sure, it would require a TON of TLC to get it back to good shape, and it doesn't make a lot of power...but....factory roll bar! Weirdness! Stick shift!
!!! UNKNOWN CONTENT TYPE !!!
Nibbles
> .jdb.
11/20/2014 at 08:31 |
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NP. Buy this. I'm certain there's some tubs near me with rust free parts to complete.
wkiernan
> .jdb.
11/20/2014 at 09:10 |
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En Pee! Always wanted one of those!
luvMeSome142 & some Lincoln!
> .jdb.
11/20/2014 at 09:30 |
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Looks cool! I was just out looking at a car to buy and the guy also had one of these in his hangar.
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.jdb.
> .jdb.
11/20/2014 at 09:43 |
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I seriously wish I had the time and the money. A quick Wikipedia search indicates that the '73 was pretty choked up with emissions crap, and...
...actually, it looks like $3k might be steep. Here's a youtubs from a few years ago for an ex-racer with lots of spare parts.
desertdog5051
> .jdb.
11/20/2014 at 12:02 |
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Forwarded to guy up my street. He has 2. Weird little cars, but kinda cool. Love the V-4.
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.jdb.
> desertdog5051
11/20/2014 at 12:19 |
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The earlier ones are incredibly rare but super-weird. 2 cycle engine and a freewheel you could turn on and off and an oil pump on the block (so you didn't have to mix fuel and oil)
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desertdog5051
> .jdb.
11/20/2014 at 12:51 |
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What does the "freewheel" do?
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.jdb.
> desertdog5051
11/20/2014 at 12:59 |
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I can explain the "what", but I'm not sure about the "why". The freewheel acts like the freewheel in a bike — basically, the car can go faster than engine RPM would allow. (so engine braking is impossible). A more detailed example: Let's say in two given cars (one with freewheel, one without, both with stick shift), 60mph in 3rd = 3000 RPM.
If you're cruising along at 60 in 3rd, in the "regular" car, if you take your foot off the gas, the car slows down a bit until you put your foot on the gas again. Engine speed is directly tied to road speed. In the freewheel car, if you take your foot off the gas, the engine drops to idle. And it won't supply any power to the wheels until it comes back up to 3000 RPM. The bike analogy is useful here - if the engine is spinning at 2000 RPM, it's like slowly pedaling your bike as you go down a steep hill. The pedals (engine) are going round and round, but there's no torque being applied. Once you get up to the speed where the engine is trying to go faster than the transmission, power is applied again.
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.jdb.
> desertdog5051
11/20/2014 at 13:04 |
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AH HA! Thanks, Wikipedia! So basically, this is a necessity for two-stroke engines: In a two-stroke, the engine is lubricated as part of the combustion cycle. The amount of fuel and oil is determined by the throttle. Open throttle = lots of air = lots of fuel = lots of oil. All good. Engine goes fast. Gets lots of oil. BUT... If you're going down a steep hill and let your foot off the gas, the throttle closes. Engine is still going fast, but closed throttle = not much air = not much fuel = not much oil = siezed engine.
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desertdog5051
> .jdb.
11/20/2014 at 13:19 |
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Freewheel explanation was great. The Wiki explanation makes sense. I never thought of that part of the operation of a 2 stroke. Thanks.
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.jdb.
> desertdog5051
11/20/2014 at 13:22 |
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Thank you for asking! I knew it had a freewheel, but your question made me dig :)
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desertdog5051
> .jdb.
11/20/2014 at 15:16 |
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Oppo has it's finer points. Among them is reliable, researched information.