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Messages - veggie

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Everything else / Re: High Volt/ Amp DC Switching hacks.
« on: March 08, 2019, 07:15:14 PM »
Better test that 12V auto starter relay very carefully; gods only knows how well it will work on 300VDC or whatever your PV string voltage is.

My Solar array is 24-36 volts depending on load, and my heating element is a 600 watt, 24 Volt unit with the impedance matched to the array output sweetspot.
Max amps is around 27. I don't see any fire risk with the solenoid being this underloaded. And it is a dedicated DC switch.
The application would be different for everyone but for switching of <100 amps at 12 to 24 volts these units have proven themselves for decades.

They are standard equipment on wind turbine and solar array Load Diversion modules.

Everything else / Re: High Volt/ Amp DC Switching hacks.
« on: March 07, 2019, 11:14:38 PM »
Reviving an old thread here but I came across this idea for switching DC power to water tank heating elements.
For applications where you have 12 or 24 volt panels feeding a DC element in a hot water tank, perhaps these 100 Amp continuous duty DC solenoids would work.

The low amperage trigger circuit of the solenoid could be wired in series with a N/C temperature snap switch which disconnects the power when the tank reaches it's set point.
The heavy load terminals carry the high amperage solar panel current directly to the heating element such as this one..

If you search ebay with this description you will find many sellers of these DC rated solenoids:
Solenoid Relay Switch Continuous Duty fit for Golf Carts 12V SAS-4201 SAS-4202

Original Lister Cs Engines / Re: Exhaust joints
« on: March 01, 2019, 03:02:09 PM »

I used  the stretchy Silicone exhaust tape on my Listeroid exhaust joints and it works great to close off any tiny leaks.
The problem is at the first joint in my system is only 1 ft. from the cylinder head.
That joint reaches 500f under heavy load and it cooks the silicone.
Turns it from Red to Brown and starts to curl and peal off.

So be aware that the silicone tape has limits. Otherwise it's great stuff.



That is a VERY good price for that engine. !


Changfa Engines / Re: Laidong and alternative fuels
« on: February 09, 2019, 11:07:30 PM »
+1 what Glort said.

The Chinese 1115 engine is a beast and very reliable.
They lend themselves very well to alternative fuels like chip oil because of the Indirect Injection heads.
The injectors have a bigger injection port (one single hole usually), like a Listeroid.
If cared for, the 1115 will probably outlive the average human. Parts can still be found with relative ease.


Changfa Engines / Re: jiang dong R108d flange/pulley
« on: February 06, 2019, 04:16:20 PM »
Does this size and bolt pattern fit your engine?
I have 2 for sale.
You can mount a standard pulley of any size to get the correct drive speeds.


Look here... in our "for sale" section

Listeroid Engines / Re: Testing import exception
« on: January 31, 2019, 08:38:08 PM »

That's a lot of work just to get an engine.
They have to approve your test objectives.
Unlikely you will ever get an approval.


Changfa Engines / Re: Why have they fell out of favor??
« on: January 26, 2019, 02:31:48 AM »
Now the men at that nostalgic  stage and tinkering with stuff are far and few between. The last  few generations being raised in town by single Mothers has wiped out whole generations of future mechanical hobbiests , fisherman, hunters etc.

Yep. Not only that but the ones who do work on equipment have become "replacement artists".
Don't repair or rebuild it ... just replace it.
To some extent you can't blame them because the replacement parts can be very inexpensive vs the time and effort to remanufacture your own. But having the skill to machine, repair, modify, and problem solve is a very useful skill.

Those 195's are indestructible !
if anyone is looking for a super reliable beast of an engine, then you should get one of these before the guy stops importing them.
They typically run at 1800 - 2000 rpm when driving generators but man they are loud.
Women and children usually start crying an run away in shear terror.

But they last forever.

I took one of these and slowed it down to 900 rpm after making a few modifications.
At that speed it was much quieter and could still make over 3Kw of generator power.
I basically I turned it into something like a Listeroid CS6.  Slow speed and 3Kw.
My neighbour fell in love with it and bought it off me.
Every now and then I hear the chug...chug...chug of the unit when he runs it.

if interested, here's a video of it before I sold it.


General Discussion / Re: Winter in Northern California
« on: January 08, 2019, 05:37:17 PM »


How did you make out with the storm than hit?
Did the ROID do it's job ?


General Discussion / Re: Winter in Northern California
« on: January 08, 2019, 05:36:18 PM »
If you want to burn off excess solar (or use some extra battery capacity) just screw one of these into a small hot water heater.
They have a built-in DC adjustable thermostat. No fancy wiring needed. Turns itself on/off.
Note that they are available in a 700 watt/48 volt size also.

I have a 600 watt, 12 volt version that I intend to install soon.


Listeroid Engines / Students visit a "high tech " assembly plant
« on: January 08, 2019, 05:23:46 PM »

If you teach new students this type of manufacturing, you will get more of .... this type of manufacturing.

Listeroid Engines / Re: Hello Everyone, an other 6/1 owner
« on: December 25, 2018, 03:08:31 PM »
Hi John,

Welcome !
Lots of info here. Keep us posted of your progress.
... And Videos Too !!  ;)


Changfa Engines / Watch Changfa type engines get built
« on: December 10, 2018, 08:42:34 PM »

Listeroid Engines / Re: Ashwamegh 25/2 : we are CLOSE now !
« on: December 09, 2018, 07:25:42 PM »
Good work!
I too had governor linkage issues which turned out to be the spring tension and also a linkage that was binding (Alignment).

You are now ready! Caution.... You may find yourself praying for power outages.   ;D

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