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Topics - bschwartz

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Waste Vegetable Oil / love my mercedes
« on: January 07, 2014, 02:35:38 PM »
I think my 1982 Mercedes 300SD will run on butter or chicken fat.....

It started this morning without issues on 90% WVO/10% RUG (petrol)........ it was 20 degrees F ( that is -6.6 C)

Granted, the back window doesn't work, the AC doesn't work, the cruise control crapped out a long time ago, the interior is cracking from age and heat......
..... but it ALWAYS starts and gets me where I need to go.

Other Slow Speed Diesels / Witte CD-12... How slow can you go?
« on: December 21, 2012, 01:17:54 AM »
I have a Witte CD-12 that is rated 12 HP @ 750 RPM.  The generator head is an ST-12 (1800 RPM 4 pole head) with a 13" pulley run off of the 32" engine flywheel.  There will be times when I don't need all 12HP (6KW) of power, and would like to slow the engine down for greater fuel efficiency. 
I have a 8.25" pulley that will fit on the generator.
Running it off of the 32" flywheel, would put the engine at approximately 464 RPM.
Assuming the oil pressure is where it needs to be (~30 lbs.) can I run the engine this slow, or will it cause problems with the engine?  Potential issues as I see them are poor lubrication (I'd think would be OK as long as there is oil pressure), fuel timing too advanced for the lower speed, increased bearing pressures.

Do you think any of these would be a problem at low speeds, or are there any other issues you can think of?

Thanks for any input.

Other Slow Speed Diesels / Witte CD-12 head gasket
« on: November 27, 2012, 01:48:46 AM »
Does anyone know where I can order a head gasket and fire ring for my CD-12.

I know I can order one from gasketstogo, but he needs a pattern first, and I don't want to take my engine apart
until I have the replacement.

If you KNOW, or have ordered from somewhere, please let me know.

Also, If you know which engines used this gasket.... ie. did the CD-12 use the same as the MD or BD ?


Lister Market Place (things for Sale) / Metro 6/1 for sale in New Mexico
« on: November 24, 2012, 10:47:28 PM »
Thought I'd post it here second (went on microcogen first, as that window was open  ;D)

My wife is pestering me to install the Witte, and it needs to go where the Metro 6/1 is sitting now......
Engine has about 1000 hrs. total run time, 150 hrs on new rings and rod bearings, custom adjustable offset idler bolt, hollow dipper, propane tank expansion chamber/muffler, ported head, hardened exhaust valve seat for running on WVO.
It is greasy/oily, as it was bought for use, not show.  The ONLY mechanical issue I see is the belt drive flywheel has a slight wobble.  It has always run fine, but looks like it was bored slightly off.
It easily produces 3000 watts from an ST-5 (not included in sale) at 4200 ft. elevation.
Selling bare engine (no generator, frame, cooling etc.)

If you have any interest, please PM me and we can talk price (No, I'm not asking $2500 or anything stupid).

Lister Market Place (things for Sale) / WVO/WMO centrifuge pump
« on: October 26, 2011, 04:08:10 PM »
Looks like it would make a good CHEAP pump to use with a diesecraft type centrifuge.


Looks to be one of these pumps

General Discussion / Microcogen site
« on: February 18, 2011, 05:53:42 AM »
It looks like the microcogen site just suffered a LEF moment...... :(

Nevermind..... It was a quick outage. 

Still had me worried though  :)

Listeroid Engines / Oil change interval
« on: November 25, 2010, 06:40:16 PM »
How often do you change your oil?  I often hear 100 hr. changes.  Does that mean every 4 days for those running 24/7 ?!?!?!?!

Listeroid Engines / Timing is everything
« on: July 09, 2010, 07:32:32 AM »
My Metro 6/1 just hasn't run 'right' for several months.  It's been noiser than it used to be.  Intake making more noise.  Louder diesel knock.  More smoke etc.  Power has been fine, putting out over 3KW, but just not running the way I thought it should.
I've adjusted rocker clearances, tried removing the changeover valve and going back to a plain plug, adjusted injection timing and everything else I could think of.  I figured that I just had a bunch of carbon build up from running WVO with some several hour runs at only about 1/3 load.

Today, I was taking out the idler gear to try changing back from the brass to the steel gear.  I just like playing........
Anyway, the crank slipped, and moved while I was putting the timing gear back in, throwing off my valve timing.

I think it moved one tooth, retarding the valve timing.  :o

Not being quite sure, I buttoned up the engine and tried starting it.
I wouldn't start and acted like retarded injection timing.......
I advanced the injection timing via the seat of the pants 'a few turns' method.

BINGO!!!!!!  Runs like a champ now!  Quieter, easier starting, less diesel knock, no smoke etc.!!!  ;D

I must have been running one tooth off for months.
These engines are unbelievable to be able to perform that far out of spec.

If your intake is noisy, it seems to 'knock' more than you think it should, smokes, and nothing else makes sense, try adjusting the valve timing.  These will run one tooth off!

General Discussion / just some pictures to share
« on: September 27, 2009, 04:42:15 PM »
I've been a listeroid picture and information leech for long enough.  I finally have a few pictures of my own to share.  Maybe someone can get an idea from looking at mine that will spark an idea for them. http://s828.photobucket.com/albums/zz204/brettschwartz/

Generators / ST5 differnt voltages blew my bench grinder etc.
« on: August 30, 2009, 09:50:10 PM »
I finally got my 6/1 Metro up and running with an ST5 head.  I have about 4 hours break in spread out over about 3 days.  I was testing the new exhaust today and had about 1800 watts or so split fairly evenly.  Each leg was showing around 117 volts........ I took a break for a bit and came back to only half of my devices running, and the smell of burnt electronics.  One leg was now reading 95 volts and the other was showing 172 !!! on the Killawatt meter.  Everything on that leg smoked.

Now the question.. WHAT HAPPENED?!?! and what do I do about it.

It was an ST5 purchased off the bay from Tom Osborn with an AVR (I have a variable resistor on the way to replace it).

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