Slow Speed Diesel Engines > Changfa Engines

New build - Changfa R175

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veggie:
New build almost finished.
A Changfa R175 coupled to a 4kw head.
(Max output is more like 2.5kw)

The unit has an external oil filter which added almost a liter to the oil capacity.
I suspect I can extend oil change intervals with this mod.
Also added is a throttle linear actuator which will allow future automation such as remote start/stop and throttle control.
You can see the actuator open the throttle just before the engine starts.
When the actuator is extended all the way to full stop, it sets the engine at 60hz speed. The max extension (60hz setting) is adjustable via a slotted mount at the back of the linear actuator

The small fuel tank is a temporary installation for testing purposes.
I only ran it for a few seconds because the cooling system has yet to be added.
https://www.youtube.com/watch?v=-k1TiayS5N8

keith71:
Very nice.. I like how compact it is.  Are you using the stock changfa oil pump to pump oil through the filter?  My R170 does not really have a real oil pump. So I am looking for the right type of pump to be able to remove oil from the sump thru oil filter and return to opposite side of the sump. I may go with a very small hydraulic type pump.

One more question about your setup if I may. Where do you get those little control boxes that house the starter button and other wiring from?  I wouldn't doubt it if you built them from scratch with your talents..  I have seen them on a few of your projects. Thanks, Keith.

veggie:
Hi keith71

The R175 engine has an internal gear pump and pressure lube system.
I tapped into the location where the metal oil screen used to reside.
Blocked it off, and diverted to the flow externally.

Regarding the little grey control box, it's a Scepter 4x4x4 inch conduit box from Home Depot / Lowes.
I wired in 3 circuits.
1] Push button starter switch
2] Double pole/double throw throttle actuator direction switch
3] Single pole toggle for coolant pump on/off

It was a bit tight fitting that into the 4x4 box as you can see in this picture....

<click picture to enlarge>

38ac:
And another impecable build by Veggie!
 I have an R165 and R170 sitting around here gathering dust and been thinking about a portable 12V charger build. I also have two air cooled mini Petteroids which would save the cooling system hassles.

keith71:

--- Quote from: 38ac on September 01, 2022, 03:29:31 PM ---And another impecable build by Veggie!
 I have an R165 and R170 sitting around here gathering dust and been thinking about a portable 12V charger build. I also have two air cooled mini Petteroids which would save the cooling system hassles.

--- End quote ---

That is what I am doing with my R170. Going to build a 12 volt charger. Also have a 2000 watt AC little gen head I may add as well.. Wont run ac and try to charge batteries at the same time. Not sure the 4.5hp the 170 puts out is enough grunt.

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