Topics - Henry W

With all the unrest going on in the US if been thinking of making a bug out generator that will give enough power to run life support. I have the Yamaha 1000 watt inverter generator that has been a reliable unit with good fuel. But what about bad gasoline? Or what about gasoline mixed with oil, kerosene, jet fuel, diesel or other stuff?

The generator has to be light to move and easy to service.

I have two New in the box military standard engines. The Model Numbers are 1A08-4.
The engines I purchased about 7 years ago are manufactured by Teledyne.

http://saturnsurplus.com/engine/onecyl.htm

The weakest link on these engines is the carburetor float. They swell up with ethanol fuel. I called up Zenith Fuel Systems about 7 years ago. They made the carburetor's for lots of the military engines and spoke to an older gentleman about the float problem. He worked there for over 40 years and he remembered that they made brass floats in the beginning and the government did not want to invest in using brass floats. They needed to get the cost down. So the brass floats they had were put away. He went in the warehouse and found four of the original brass floats so I bought them. I tried one and they were an exact fit. These engines were intentionally under rated to 1-1/2 hp. I've heard that they are about 2-1/2 to 3 hp. These engines should put out enough for a compact setup. I believe the engines are set up to use a generator head that's set up for J609a mounting. The engines max recommended speed is 4000 rpm so I'm thinking of running direct.

Anyone else thinking of building something for hard times?

#47

White Papers/Technical Library / The Impact of Generator Set Underloading

January 03, 2021, 07:14:31 AM

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#48

Wall and roof / Build a Lego home

December 28, 2020, 03:56:11 PM

Now this is very interesting. Build a home like using Lego blocks. I would like to see one in person.

https://youtu.be/MIKJG-iMKwY

#49

White Papers/Technical Library / Determining Your SAE Bell Housing & Flywheel Size

December 25, 2020, 07:57:37 PM

The info on this topic is from Tom Osborne. He put this together to help his customers at Central Georgia Generator to properly measure SAE Flywheel Housings and Flywheels. We have permission to post this on our forum.

Determining Your Bell Housing & Flywheel Size

In order to determine your correct SAE bell housing and flywheel size, we will need for you to take three measurements:

XD which is the inside diameter of the bellhousing
XE Which is the diameter of the drive plate or the machined-out part on the flywheel where the drive plate bolts. NOT THE DIAMETER OF THE FLYWHEEL
XG Which is the distance the drive plate extends into the bellhousing. The XG is measured by laying a straight edge such as a level across the rear of the bell housing and measure from the inside of the straight edge to the flywheel machined out part on the flywheel where the drive plate bolts.
Compare your measurements to the measurements in the chart to find your SAE size.

Log in to view attachment below

#50

Location, Location, Location / Tiny House Giant Journey

November 21, 2020, 11:48:39 AM

120 sqft. Home.

https://youtube.com/c/TinyHouseGiantJourney

#51

Location, Location, Location / Video clips from Little House Off Grid

November 21, 2020, 10:17:12 AM

Thought these clips would be interesting.

https://youtube.com/c/LittleHouseOnTheRoad

#52

White Papers/Technical Library / Brittle Lacquer Technique of Stress Analysis.

November 17, 2020, 08:11:23 AM

I thought the info posted from sailawayrb and mobile_bob in another topic was too important to get lost so I posted their quotes here.

Quote from: sailawayrb on November 16, 2020, 11:54:16 AM
And yes, I love red paint! This paint is special in that it will flake off if there are any stress concentrations in the cast iron. So it provides some advanced warning of potential component stress failure.

#53

General Discussion / YouTube clips

November 05, 2020, 02:20:47 AM

At times I like watching YouTube clips when working on automobiles and power equipment. There are people that started good channels on repairing certain vehicles and equipment. I think it would be helpful to work on posting certain YouTube links here. We might be able to make another section on this forum for these. But for now let's try posting them here and we'll move them later.

#54

General Discussion / Gasoline, LP, Nat, Gas. Can operating costs be lower than diesel for some?

November 01, 2020, 10:03:04 AM

With today's prices on Gasoline, LP and Nat Gas prices going down is it possible that some might be able to break even or have lower cost using these fuels compared to using diesel.

What are your thoughts?

#55

White Papers/Technical Library / Honda GX240, GX270, GX340, GX390 Technical Manual

October 28, 2020, 06:56:25 PM

Found this Technical Manual for Honda GX240 through GX390 engines.

There is lots in it.

A some things covered are:

* Recommended Power Range
* Output Confirmation Methods
* Minimum Cooling Air Flow Requirements
* Maximum Operating Temperatures
* Ambient Temperature Limits
* Engine Enclosures
* Engine Mounting
* Resonance Check
* Power Transmission
* Wiring Diagrams

And more...

(Must be logged in to view)

#56

Members Projects / Honda GX390 120 Volt RV Generator

October 18, 2020, 08:20:30 PM

It's been almost 9 years when I started collecting parts to build another belt drive generator. Some members might remember the first belt driven generator I've built in 2009. ( http://www.microcogen.info/index.php?topic=61.0 ) The thing was heavy, it weighed over 1200 Lbs, At the time I was barely able to role the thing out of the garage to run it. I threw my back out a number of times and I decided to get rid of it before I seriously injure myself. I than built a direct drive generator using a Kubota Z482 engine driving a Markon 3600 rpm generator head. ( http://www.microcogen.info/index.php?topic=1283.0 ) it was a very nice looking little unit and it worked ok, but, there were some things I did not like about it.
* It was not quiet.
* Engine seemed stressed out running at 3600 RPM's.
* The Markon generator head emitted a good amount of trash when loaded.
With these issues I decided to sell it and start another build. And the last one was a beauty. It used a Kubota D1005 3 cylinder diesel directly coupled to a Marathon 1800 RPM generator head. ( http://www.microcogen.info/index.php?topic=1743.0 ) The unit seemed to be low stressed. The power it produced was very clean and if needed, it could run hundreds of hours non stop.
The only concerns I had were:
* Parts were expensive.
* Most of the time it was too large for my needs. So a load bank was set up to load the generator to at least 50% load.

I felt it was a waste operating a load bank and I was thinking of switching to propane, so I sold Kubota D1005 powered generator to a member on this forum.

Years went by and being undecided on what power source I will be using on my next build I decided to wait.

Early this year I wound up purchasing a number of Yanmar clone diesel engines to sell and it turned out I kept 2 engines for this project. I decided to start one of the engines up. Well, it was LOUD. I realized that these engines will not meet noise restrictions for RV use. This is when I decided to try out a Honda GX390 gas engine and this is where this project starts.

#57

White Papers/Technical Library / Power Transmission / Belt Drive Basics

October 06, 2020, 02:49:29 AM

Here is something I just stumbled upon.

https://www.tec-science.com/mechanical-power-transmission/belt-drive/basics/

#58

Testing Protocols/Procedures/Methodology/Results / Grounding requirements of portable generators

September 18, 2020, 02:48:46 PM

https://www.osha.gov/OshDoc/data_Hurricane_Facts/grounding_port_generator.pdf

#59

Items Wanted/Want to Buy / Chinese Diesel engine parts

August 09, 2020, 04:13:21 PM

If you find a source, list it here with all the info you can, links, description, price, part number etc.

#60

General Discussion / 5.1 earthquake hits North Carolina

August 09, 2020, 09:03:30 AM

Daughter woke me up and mentioned that we just had an earthquake. She said it registered 5.1 in Sparta, North Carolina.
I hope everyone is ok and the area suffered no damage.

Henry

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