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General Discussion / Re: listerengine.com forum
« on: July 31, 2021, 03:37:25 PM »Bob and AdeV THANKS !
Thanks Bob G and AdeV and anyone else who helped during the outage.
Veggie
Home of the Listeroid - Since 2005
News:
For those who don't know, regular poster Bob (aka Ajaffa) and his wife recently lost his house and many of their possessions (but apparently not his engines!) to a bush fire. Please see this post for details of an appeal to help him rebuild. Thanks, everyone from LEF.
https://listerengine.com/smf/index.php?topic=8876.0
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Bob and AdeV THANKS !
Thanks Bob G and AdeV and anyone else who helped during the outage.
Veggie
2
General Discussion / Re: A Pulley On Each Flywheel?
« on: July 23, 2021, 06:40:17 PM »"I always found it fascinating, these overhead shafts would run in wooden blocks as bearings, and pretty much last forever".
Yes, they are amazing... until you forget to lubricate them with pig fat
Then they catch fire
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General Discussion / Re: A Pulley On Each Flywheel?
« on: July 19, 2021, 07:11:15 PM »I agree, there should be no issues with what you are planning.
Some people buy a multi-groove pulley and run 2 belts from the same side of the crankshaft for 2 separate loads.
(2 loads driven by 1 pulley)
One advantage to running two loads in opposite sides from the same pulley is that the normal belt tension side load on the crank bearings is offset by the two drives pulling in opposite directions. ( if that makes any sense
)veggie
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Changfa Engines / Re: Chagfa 175 CHP unit - First Test
« on: July 19, 2021, 03:45:32 PM »
Fred8
The engine only sounds quiet because my system is designed to run at 1150 rpm.
If I ran it at 2600 rpm with full output it gets very loud. (Typical Changfa type engine.)
The pulleys are sized so that the generator spins at synchronous 3600 rpm when the engine is turning at 1150.
This limits the system to 1.3 kw max output at 120 volt AC.
To modify the engine for an external oil filter you will have to confirm that your engine A] Has an oil pump and forced lube system. B] The engine has a removable filter screen that can be modified.
I don't have pictures available of the modification, but the the objective is to remove the cover giving access to the pressurized screen filter chamber.
Remove the screen filter and machine a plug that fits into the filter chamber. The plug has holes and an o-ring which re-route the incoming oil to an external port. Through the filter, and back into the screen chamber, then onward into the engine. Each engine size probably has a different sized screen and chamber so each mod is custom to the owner.
As far as I know, only engines size 175 and larger have the removable screen cover. Smaller units (160,165, 170) do not have this feature.
Your assumption of approx. 1/3...1/3...1/3 power between crankshaft, coolant, and exhaust energy is correct.
Gathering exhaust heat however, can be messy and difficult. Soot and carbon clog exhaust heat exchangers very quickly if not designed correctly and if exhaust velocity is not sufficient. Even then, regular cleaning may be needed.
Here is another example of an enclosed system that a fellow built. Provides power and heat.
https://www.youtube.com/watch?v=Rx0ODuaoWwE
good luck with your project, keep us posted
cheers veggie
The engine only sounds quiet because my system is designed to run at 1150 rpm.
If I ran it at 2600 rpm with full output it gets very loud. (Typical Changfa type engine.)
The pulleys are sized so that the generator spins at synchronous 3600 rpm when the engine is turning at 1150.
This limits the system to 1.3 kw max output at 120 volt AC.
To modify the engine for an external oil filter you will have to confirm that your engine A] Has an oil pump and forced lube system. B] The engine has a removable filter screen that can be modified.
I don't have pictures available of the modification, but the the objective is to remove the cover giving access to the pressurized screen filter chamber.
Remove the screen filter and machine a plug that fits into the filter chamber. The plug has holes and an o-ring which re-route the incoming oil to an external port. Through the filter, and back into the screen chamber, then onward into the engine. Each engine size probably has a different sized screen and chamber so each mod is custom to the owner.
As far as I know, only engines size 175 and larger have the removable screen cover. Smaller units (160,165, 170) do not have this feature.
Your assumption of approx. 1/3...1/3...1/3 power between crankshaft, coolant, and exhaust energy is correct.
Gathering exhaust heat however, can be messy and difficult. Soot and carbon clog exhaust heat exchangers very quickly if not designed correctly and if exhaust velocity is not sufficient. Even then, regular cleaning may be needed.
Here is another example of an enclosed system that a fellow built. Provides power and heat.
https://www.youtube.com/watch?v=Rx0ODuaoWwE
good luck with your project, keep us posted
cheers veggie
5
Changfa Engines / Re: Chagfa 175 CHP unit - First Test
« on: July 19, 2021, 02:57:14 PM »Did you have to adjust the timing on the fuel pump to get it to run at that speed or were you able to do that in the factory configuration (minus the lighter spring)?
No modifications other than the lighter spring on the throttle.
Engine speed is 1150 rpm.
It can go slower than 1150 in it's stock form.
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Listeroid Engines / Re: Metro 12/2 rebuild
« on: July 03, 2021, 07:52:44 PM »
Something looks wrong there.
The babbit appears to be scored (lighter grey material) and the section near the end of the shell (darker grey) looks like it's not contacting the main bearing journal.
The babbit appears to be scored (lighter grey material) and the section near the end of the shell (darker grey) looks like it's not contacting the main bearing journal.
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Waste Motor Oil / Re: 3/4" needle valve
« on: June 25, 2021, 04:57:05 AM »Mike,
Your videos are set as "private" and are not viewable by us mere mortals
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Waste Motor Oil / Re: 3/4" needle valve
« on: June 18, 2021, 10:44:53 PM »Hi Mike,
That one you linked is for hydraulic service and has a one-way check valve in it. Gravity won't open the check, so unless you can remove the check valve I doubt it will work.
cseyfert, ... Good catch !
Mike .... remove the check valve
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Listeroid Engines / Re: Need help with Injector Pump (Minimum Engine Speed)
« on: June 18, 2021, 10:40:38 PM »Veggie, I wish you would get this figured out as it has ne curious. While the fuel tubing having some flex deal is valid mine has that flex also. Just finished up another Lister 6/1 this week and after a 5 minute run in I grabbed the fuel lever and slowed it down and it hit every other revelution until it was too slow to carry over compression. Has India HP line, Mico injector and Mico innards in the CAV pump.
Mine is Direct Injection. Could that have anything to do with it ?
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Listeroid Engines / Re: Need help with Injector Pump (Minimum Engine Speed)
« on: June 17, 2021, 03:24:04 PM »Makes sense.
The minimum stable speed I can achieve with constant ignition is 375 rpm.
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Waste Motor Oil / Re: 3/4" needle valve
« on: June 15, 2021, 03:18:30 PM »For what you are doing (WMO feed regulation) it should be fine.
The only issue with needle valves for WMO is the tendency to clog due to the fine passages around the tip of the needle.
Stringy bits can cause a obstruction very quickly.
So ... make sure your oil is well filtered. Maybe down to 5 microns.
veggie
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Listeroid Engines / New Listeroid Model
« on: June 14, 2021, 04:27:05 AM »This new unit from Rajkot is slightly smaller than the current Listeroid 6/1
https://www.youtube.com/watch?v=xqJoRK2t1VI
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Waste Motor Oil / Re: My new "Roger Sanders" style waste oil burner
« on: May 09, 2021, 06:56:44 PM »Very nice job tying it into the heating system.
Looks reliable and effective.
Well done !
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Listeroid Engines / Re: Ran the beast today !
« on: May 09, 2021, 06:51:12 PM »
I noticed the marks on the flywheel.
What timing setting do you use (Deg BTDC) on that beast?
What timing setting do you use (Deg BTDC) on that beast?