Generac GT 990???

[bcteck]

Have access to a generac gt990 engine for really cheap. Hardly any hours on it. Is it even possible to use one of these in a 1997 argo response?

[thebuggyman1]

Sure, nearly anything is possible.....but with how much custom fab work? What size shaft does it have? Tapered?

[Canadian_Zuk]

Anything is possible, that motor has tapered shafts so clutching will be your first hurdle. I believe they make 33 or 35HP and will probably be governed to 1800 RPM from the factory.

[bcteck]

1800rpm?
Wow, so it would give my argo a top speed of about 9mph. Watch out folks, we are flying! Lol

[bcteck]

Right now my argo has an 18hp vanguard briggs. Are these generac motors close to the same size?

[Canadian_Zuk]

1800rpm?
Wow, so it would give my argo a top speed of about 9mph. Watch out folks, we are flying! Lol

Lol, the max RPM is an easy fix of the governor. These motors are usually governed to 1800 RPM for use on generators.

[Canadian_Zuk]

Right now my argo has an 18hp vanguard briggs. Are these generac motors close to the same size?

The GT990 will be physically bigger, but I'm sure there is plenty enough room for it in your Argo. I think your biggest challenge will be the crank shaft.

[bcteck]

Surly someone has a tapered clutch to fit these generac motors? ??
If not, what is the options? A machine shop? Could the crank be modified to fit a clutch?

[Canadian_Zuk]

Surly someone has a tapered clutch to fit these generac motors? ??
If not, what is the options? A machine shop? Could the crank be modified to fit a clutch?

I have no idea if there is a clutch available for it or not, that crank was direct drive into the rotor assembly of the generator it came from. The only option I can think of would be to remove the crank and have it turned down and mill a keyway to match your Argo clutch. An easier solution would be to find a clutch that can be modified to fit the taper of your crank but I don't know if such a thing exists.

[Noel Woods]

I think the best bet would be to find a machine shop to do the millwork and match your stock clutch.

[bcteck]

Ok, so I found a guy that gave me more info on the generac motors. He can also get me parts. He said there is no charging system so I will need a new fly wheel, stator, ect. He can get me a different crank to do away with the tapered shaft. He also can get the intake and carb. Probably be at about $800 in total parts. He said with gasoline in the 999cc it will be at about 40hp and 68 ft lbs torque! Not sure if my argo can handle that kind of tq. Lol
But I'm getting king of excited!

[Nubs]

992cc generac and a 23hp vanguard, generator models never came with a governor or charging system. a one wire alternator would be far cheaper and easier to install, keep in mind that the crankshaft will not come out without removing the pistons and rods.
they will run 4,000 rpms without a problem or any modifications

[ARGOJIM]

? popped in my head. Had to read this twice as I missed the Generator models part , very informative for potential buyers. Does the flywheel come with magnets or no?

[Nubs]

? popped in my head. Had to read this twice as I missed the Generator models part , very informative for potential buyers. Does the flywheel come with magnets or no?

No magnets, would need flywheel, stator, voltage regulator etc. now add a new crankshaft, rings and gaskets.

i can't see $800 covering that from my end

[ARGOJIM]

Had often seen generator engines cheap and pondered them, I guess its would be an option if you blew your engine and had all good parts needed or picked up a vertical for near nothing for a conversion. There are plenty of low hour non producing generators out there also.
Other than a crankshaft the alternator may be the way to go, unless you could make a clutch fit the crank.