!!!MOM!!! Craigslist is still being stupid!!!

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I would say he needs a caterpillar diesel and transmission out of a D8!

[ame="http://www.youtube.com/watch?v=AE02pXVXWCs"]Cat D8 Vs car - YouTube[/ame]
 
Maybe he is building a hot rod or something and doesn't care what brand it is? Maybe he is just keeping his options open to find the best deal or something unique?
 
THIS is a "big motor"

021_040.jpg
 
Heres one ready for install.Those are little motors 273.This is more like it.
 

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Rice Nuker said:
What the heck is that? Are the motors or generators?
Click to expand...

Actually a motor can be a generator can be a motor can be a generator

That is why older generator systems HAD to have what is called a "cut out relay."

Really old systems, before regulators came along, were a single cutout relay in a can. Regulators included the regulator. Automotive generators are not "self limiting" so they must also have a current regulator, hence the three relays in a generator type regulator ---- voltage regulator, current limiter, and cutout relay

Now the REASON you need a cutout is, that if the generator stops charging due to a problem, or is shut down, OR breaks a belt, it tries to become a MOTOR, and I, in fact have had that happen a couple of times in my "yute." If you break a belt with the engine running, the cutout doesn't trip, and the generator sits there spinning wildly, until you either disconnect one of the regulator connections, or wedge a tree branch, etc, against the pulley.

imageqvd.jpg
 
Hey Del,
Speaking of big engines, here was my wife's engine(s) when she was CHENG of The Gridley. 4-General Electric LM2500's @ combined 100,000 SHP, 75MW
lms-2500.jpg

ddg-101.jpg

My 273 car is still faster though.
 
I'm pretty much a "fish out of water." I was in the Navy for 6 years, maintained GCA RADAR and other air NAVAIDS at NAS Miramar. I was just "lucky." Was never on a commissioned ship at sea.

Wonder how fast that thing will really really go?
 
67dart273 said:
actually a motor can be a generator can be a motor can be a generator

that is why older generator systems had to have what is called a "cut out relay."

really old systems, before regulators came along, were a single cutout relay in a can. Regulators included the regulator. Automotive generators are not "self limiting" so they must also have a current regulator, hence the three relays in a generator type regulator ---- voltage regulator, current limiter, and cutout relay

now the reason you need a cutout is, that if the generator stops charging due to a problem, or is shut down, or breaks a belt, it tries to become a motor, and i, in fact have had that happen a couple of times in my "yute." if you break a belt with the engine running, the cutout doesn't trip, and the generator sits there spinning wildly, until you either disconnect one of the regulator connections, or wedge a tree branch, etc, against the pulley.

imageqvd.jpg
Click to expand...



huh?
 
Roger that!
When I was a kid, I used permanent magnet motors as generators on little 4th grade science projects and such.
My friend claimed they stuck a car battery directly to a generator on some old car and cranked the motor over. Dunno 'bout that.

This thread is getting pretty cool.

67Dart273 said:
Actually a motor can be a generator can be a motor can be a generator

That is why older generator systems HAD to have what is called a "cut out relay."

Really old systems, before regulators came along, were a single cutout relay in a can. Regulators included the regulator. Automotive generators are not "self limiting" so they must also have a current regulator, hence the three relays in a generator type regulator ---- voltage regulator, current limiter, and cutout relay

Now the REASON you need a cutout is, that if the generator stops charging due to a problem, or is shut down, OR breaks a belt, it tries to become a MOTOR, and I, in fact have had that happen a couple of times in my "yute." If you break a belt with the engine running, the cutout doesn't trip, and the generator sits there spinning wildly, until you either disconnect one of the regulator connections, or wedge a tree branch, etc, against the pulley.

imageqvd.jpg
Click to expand...
 
Some engines had "starter generators." These are typically on small engines, like some older garden tractors. I had an IHC "Cub Cadet" garden tractor for a little while, and it had a starter generator. In reality they simply have a starter solenoid which applies battery power to the armature, IE bypassing the cutout.

When I got it, the cutout relay in the regulator was bad, so I merely replaced it with a diode

The cub:

24whxmf.jpg


Tearing the bad cutout relay apart

1z50qv4.jpg


I actually used a bridge rectifier because RadShack didn't have a diode I figgerrrrrd was large enough. The way this bridge is used here, two of the 4 diodes in the package are in parallel for more current

2e6efix.jpg


Wiring for a similar rig. No. 43 is the starter switch, and as you can see, it simply applies battery power to the armature of the generator, turning it into a motor

l_1-38.jpg
 
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