When all you have is a hammer, everything looks like a Listeroid

Quote from: Hugh Conway on January 17, 2021, 07:25:12 PM

Indians may not have much to work with, but they are resourceful.

 Ha! Good one ! 

Thanks 38ac

The freight and customs charges would make it difficult to justify.

Here's the first test of the new Changfa R175 CHP unit.

Gave me something to do during lockdowns   

Some features/changes to the original engine.
- Larger and better quality air filter
- Machined an adapter to divert oil from the internal screen to an external filter.
  (This increases the oil capacity by almost 1 litre)
- Removed the hopper cooling system and replaced it with a pump driven closed circuit
  loop which passes through a flat plate heat exchanger allowing heat to be removed to a useful application.
- Installed a lighter throttle lever spring which seems to allow the governor to be more sensitive at the lower rpm.

The unit is currently designed to run continuous at 1100 rpm. In this test it is loaded to 900 watts with an electric heater.
At 1500 watts the engine bogs down so I suspect the 900 watt load is approximately 85% of full load.
https://youtu.be/8yGpl7Dmvas

I may actually pick up a 16/2 down the road and use the 8/1 with the axial charger.

I would love an axial charger on the crankshaft of my 6/1.
If you find a good source that does not require a second mortgage to purchase, let me know.

Here's a fellow that built one for his Listeroid. Nice compact unit.
https://www.youtube.com/watch?v=VyJYdHzwsy4

Yes, I have also heard that the little Kubota Z482 twin diesels are more efficient than Listers.

The original post included "slow speed" running, which would also save considerable fuel use provided enough HP is created to power whatever charging system you plan to use.
Many users have run Lister(roids) at 350 rpm driving an automotive alternator at 30 amps (12 volt) for 8 hrs a day.

38ac,

Thanks for sharing that. Good info.
So, there we have it. There are several 1115 variants.

A common way during the golden age of Lister CS industrial applications was to pack a lot of grease around the valve train.
The engine could be left for days or weeks without attention.

For continuous running you will somehow have to deal with valve train lubrication.
Also, oil filtration may allow for longer oil change intervals.
Combine the solutions...
Consider this idea for continuous long runs with a 6/1 CS style.
It is something I am considering for my Listeroid.

-Replace the oil drain plug with a TEE fitting.
  one port on the tee is for draining
  one port on the tee is to connect a very small gear pump
-Draw oil from the sump with a small gear pump and pass it through an oil filter

From the filter you can branch to several locations in order to get the oil back to the sump.
 1] The camshaft oiling plug near the decompression lever (this will solve any cam bearing lube issues)
 2] If you want to include the valve as well, use a tube up to the valve assembly to trickle over the rockers and valves.
     To drain the valve area you drill/tap a drain hole in the side of the cast iron ledge surrounding the valve chamber.
     From there it can drain back to the camshaft lubrication plug by the decompression lever.

Obviously the flow must be very low, so a tiny gear pump is needed. (Or a larger gear pump with a bypass line taking the majority of the oil directly back to the sump while some oil goes to lubricate the valve system.

This is an old video but it does show a small gear pump running off my auxiliary crank pulley.
From the gear pump the oil passes through the filter and back into the sump. (I vented the crankcase elsewhere with a check valve).
Further modification to this system would be to TEE a connection before the oil goes back into the crankcase and divert some up to the valves.
Then have it drain into the camshaft lube port discussed above.
https://www.youtube.com/watch?v=l562wUof59c
The vid is a bit lengthy but you can jump to the 0:30 second mark to see the lube system.


good luck with your project,
veggie