Micro CoGen.

Darn it!! I was so hoping this engine could do the job. 

It'll be easier to find a 800cc car engine than it is to source a beefier engine!
Shipping and customs duty alone will take all the joy out of this project.

Fuel injected small car engine. Is it feasible to use such an engine btw? 
Or, do I just bite the bullet and go find a V-Twin online?

Let's take Listeroids etc off the table entirely, as I'd most likely go broke importing one.

What kind of gas engine would you recommend for QUIET & RELIABLE operation??

Thanks for the speedy response.

The motor normally runs at 3,600rpm, but I was thinking to reduce both wear & tear and the annoying noise.
But if 3,600rpm is recommended, that's what it'll be. Hmmm, I wonder if 3,000rpm makes less noise?  

Re: the alternator, its peak output comes at 8,000rpm, but as far as I can tell it'll generate 240A at 3,500rpm.
I don't see myself needing 280A anytime soon, and at the expense of revving it another 4,500rpm to achieve this seems rather inefficient.


The idea to spin the C626 at 2,000rpm was born from the need to perform some rudimentary current limiting. I've contacted C.E. Niehoff about this, and they've said it can be done, but will require large amounts of torque, so the higher revs on the engine might indeed be the ticket. That said, the problem now becomes the lack of current limiting as pumping 240A into a 1,000AH battery bank sounds like a recipe for destruction.

So I guess, I'll go do some more reading on the Balmar and the Sterling units.

Any recommendations on sourcing the pulley and belt??

Hola a todos,

DISCLAIMER: I tend to be kinda long-winded, so consider yourselves forewarned!!  

I have a rather anemic 1KW solar array trying to charge a 1,000AH battery bank with limited success due to periodically overcast skies.
I actually have 3KW of panels and a wind turbine, but cannot deploy those due to landlord issues - A relocation is in the pipeline.

I currently use a B&S Wheelhouse 5550 with a Prosine 3.0 to periodically charge the batteries at 60A max, which depending on the DOD, TAKES FOREVER - Not to mention the noise!!

After much reading I happened upon and joined this site, and after much more reading I decided to ask for your help.

I'd purchased a Niehoff C626 alternator (prior to joining) and plan to mate it to the 10hp B&S engine from the genset for faster charging.
The Briggs has a tapered shaft of 0.872 (7/8) inches, and I need a pulley that can be mated to this shaft.

The C626 came with a A3-229 eight-groove pulley which takes a 28mm wide belt, and I'd like to use a slightly larger pulley for the engine.
By my calculations, with a 1,800rpm engine speed, I'll need a 4.44inch pulley to spin the C626 at 2,000rpm.

However, I'm in Jamaica with no access to wide selections of pulleys and belts, so my offline component sourcing has been less than fruitful.

Instead of running the risk of purchasing the wrong thing, I humbly request some guidance re: what belt and pulley to acquire.



P.S.
As I only plan to use this rig for bulk charging, is the onboard A2-141 regulator sufficient?
Or, do I need to replace it with a Balmar (MC624?), or a Sterling unit?