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Messages - gadget

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Waste Motor Oil / Re: Conditioning waste motor oil
« on: February 22, 2022, 07:32:38 AM »
I didn't go and search it but I think that Edee had wrote about some sort of home made refining process when he was playing with waste oil? Go to the Listeroid section and find his post called Listeroid Chronicles.

I went through it a while back. I remember talk about distilling not being able to remove the additives from somewhere online??? I can't remember 100% so I will search and read when I have some time. Right now I am getting ready to move to Missouri from northern Utah. It been sad having my motor apart in pieces all boxed up.

I simple test would be to distill a quart or so and just burn it in clean container. If its successful, there will be no ash left behind. If it works then that would be a fantastic "free" fuel source. I will test it out some day unless someone else beats me to it.

Waste Motor Oil / Re: Conditioning waste motor oil
« on: February 21, 2022, 04:29:47 AM »
Has anyone confirmed that distillation removes the tiny minerals (zink/magnesium,etc...) from the oil? Are they so small that they go along for the ride?

What makes them harmful is when they oxidize in the burning process and become abrasive powders. They are added to oil to help balance out the PH and other reasons.

The only thing that could be filtered out of motor oil down in the low single digit micron range is the anti-foaming stuff.

Has anyone tried to distil WMO yet? The process would not be that hard if it works.

Listeroid Engines / Re: Twin...SLOW SLOW speed....?
« on: February 15, 2022, 04:54:15 PM »
How about some rockwool insulation on the motor to keep it warm?

Listeroid Engines / Re: maybe we should make our own engines ?
« on: January 09, 2022, 07:41:27 PM »
Using as many off the shelf parts as possible, piston, rod, valves, etc... would be key. Then, sell only pieces for your "air compressor"

Listeroid Engines / Re: Idler gear backlash
« on: April 18, 2021, 03:17:46 PM »
First check I would do is to make sure its consistent all the way around. Mine is not. Its tight in one spot and loose in another. I think my Cam is bent.

General Discussion / Re: Microcogen will be getting an upgrade soon
« on: March 06, 2021, 01:44:38 AM »
Thanks for the update

Lister Market Place (things for Sale) / Re: New Listeroids for sale
« on: February 15, 2021, 04:09:06 AM »

Obviously keith71 has never seen or worked on one of the wonderful products fron India.

Good luck with that !


Yea, my DES already had a wrong piston, etching on one of the lifters, bent camshaft, used cylinder bore...and I haven't even assembled it yet....

I'm sure my list will grow but I will make it a good runner once its done...

Listeroid Engines / Any one setup for CHP capturing your exhaust heat?
« on: January 25, 2021, 03:09:00 PM »
I've been looking through lots of CHP videos and haven't found anyone capturing waste exhaust heat of there listers. Is there a reason to avoid it? Condensation issues?

Listeroid Engines / Re: Listeroid intake porting
« on: January 25, 2021, 08:06:42 AM »
I was taught crossing the boundary layer was a no no and one must keep the flow laminar. Now your telling me turbulence is ok at the boundary layer. I feel like I may have missed out by avoiding the port altogether..Oh well I'm married now and don't have to worry about getting turbulent in the port.

Listeroid Engines / Re: Listeroid intake porting
« on: January 23, 2021, 08:40:25 PM »

Atkinson cycle if anyones curious;

Listeroid Engines / Re: Listeroid intake porting
« on: January 23, 2021, 06:52:23 PM »
WOW 38ac, thats a pretty big difference is size. I'm starting to wonder if the original lister team was focusing on some modified atkinson cycle type gains with this motor. Less compression ratio(low intake volume) vs expansion ratio. Thats one thing I love about the motor is the RPM / HP vs Displacement. Leaves lots of time to absorb the energy and keeps the numbers high for such an old design.

You are right though, best way to get more power is to go with a twin. I'm picking up an 16/2 as soon as the budget allows for my gen head. Then I can use my 8/1 for my low RPM always on axial flux CHP. Who says you only need one motor? I missed that rule. I'll just tell the wife the other motor was getting lonely....

Listeroid Engines / Re: Rajkot Dynamometer facility
« on: January 18, 2021, 05:34:40 AM »

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

I'm glad I wasn't taking a drink when I read that.

Waste Vegetable Oil / Re: New waste oil Burner.
« on: January 13, 2021, 04:41:20 PM »
Here, what is called "steel wool" is hair fine fibers of steel, which actually burn and rust up real easy. 

Something from a boat yard called Brass Wool (for scrubbing finish and crud off boats without leaving iron bits to create rust streaks) wouldn't oxidize as fast, but may melt from heat.   Maybe stainless wool ?  or something like coarse stainless chips & spirals from a machine lathe


I know you posted this a while ago but if your looking for a high temp wick, ceramic fibers work really well. The alcohol stove folks use it all the time.

Changfa Engines / Re: Chagfa 175 CHP unit - First Test
« on: January 08, 2021, 02:45:32 AM »

Thank gadget,

The pump is a 12 volt solar hot water unit. It is wired to a toggle switch at the starter button.
I will look at the data sheet and check the allowable orientations for the pump.
Ideally the pump and heat exchanger would be mount "off-skid". But this is for testing the concept.

The ceramic bearing types will have a long skin white bearing / shaft with ceramic side washers. If you lay it sideways, The rotor rotates on the shaft and not the side washers. It should add much more life. You will see it the first time you ever have to pull it apart to free it from debris.

Great pumps, I have dozens of them. I have one about 30 feet down in the ground pumping ground water 24/7. It gets ran for about 4 months strait every winter geo heating my green house.

I am really curious how well it holds up to the high temps. I have a project down the road where I would like to run one at 150F.

Changfa Engines / Re: Chagfa 175 CHP unit - First Test
« on: January 07, 2021, 02:15:14 AM »
Veggie, you have so many cool engines.

That water pump you have on there may have a longer life if you rotate it 90 degrees so the impeller/magnets ride on the ceramic shaft. Also, im curious what temps it see's with this setup. I've worked with many of those pumps. Is it a 2 phase or 3?

I love your builds

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