Slow Speed Changfa Project

[veggie]

Hi Henry,

Well...since you asked...

I have some Changfa R190NM units and I plan to turn one of them into a slow speed model.
Being in a residential area, noise is an issue for me.
The R190 Changfa's are much lighter and easier to work with than the bigger 195's.

A R190NM would be a really nice unit to couple with a Leece or Voltmaster alternator for emergency power and battery bank charging.

At 1200 rpm it should make approx. 5 HP or 2.5 kw of generated power. (3.5 HP at 900 rpm for battery bank charging).

I will apply the same mods to the R190 as I did with the S195.

veggie

[Henry W]

Hi Veggie,

Glad to hear you have another Changfa project in the works. I would like to see the inside of an R192.

Henry

[ryanw95]

I like the stationary mount pads u made for it. The casters fit in it nicely.

I take it they're made from angle iron welded to flat bar, with the pads bolted on to the bars? Good and simple, love it.

[mobile_bob]

Veggie

its been a while since this topic was posted to, and i was thinking about it this evening
and wondered if you still have it in operation?
if so how is the engine doing?

thanks
bob g

[veggie]

Hi Bob,

A neighbor saw it running one day when I had the garage door open and he fell in love with it.
He hounded me until I sold it to him. (3 doors down)
I hear it running once in a while because he runs it every month.
Calls it his "S#@t hit the fan insurance"  

Runs great and makes good, quiet power.

If I did it again, I don't think I would change much...
1] Ad some flywheel weight (either a heavier flywheel or a heavy drive sheave)
2] Retard the timing by 2 - 5 degrees
3] Change to a lighter governor spring

cheers,
veggie

[veggie]

*** UPDATE ***

Guys !

I'm reviving a 10 year old thread. 
The neighbor who bought my Changfa 195 "Slow Speed Project" never used it once in 10 years.
( Wow.... how time flies hey ! )
Anyway, I offered to buy it back since he has no need for it. He accepted.
So now the 900 rpm Changfa 195 generator is back in my stable. 

WooHoo !!!!

More updates to follow....

veggie

[mobile_bob]

don't you love it when the kids come home?



bob g

[Tom Reed]

Well......has it improved with age? 

[veggie]

Tom,

It hasn't changed a bit.
He kept it covered and tucked away in the corner of his garage.
Looks just like the day he took it.

[veggie]

Here a video with the belt guard removed showing the increased mass flywheel.
https://youtu.be/X3n0dVsias8

The winy shrill noise in the background is the generator head.
It makes that sound when lightly loaded

[Tom Reed]

Very nice setup Vegie. My 195 is working it's heart out running a Chinese wood chipper. Is the fan on the radiator thermostatically controlled?

[veggie]

Is the fan on the radiator thermostatically controlled?

Thanks,

Yes, there is a Snap Disc temperature switch on the side of the radiator.
It can also work 100% of the time by connecting a wire to the Accessory contact on the Key-start ignition switch.
I have run it both ways.
Currently it runs whenever the key switch is turned on. That way it's the same as a stock engine which runs the fan 100% of the time from a belt to the crank.

[Henry W]

Veggie,
This is great news!
You need to throw a home coming party.

[veggie]

Veggie,
This is great news!
You need to throw a home coming party.

Yes !  Shell Rotella 5-40 for everyone !     WooHoo