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Messages - agroot

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1
Listeroid Engines / Re: Lister flywheel removal
« on: February 25, 2007, 12:53:07 AM »
I've been having the same trouble as Rob. Been fighting with that blasted key for two weeks with different style pullers. Zeke gave me a wonderful idea and I made a puller out of a McMaster Carr shaft collar - drilled and tapped 4 holes, 3/8 grade 8 bolts. Still no go. I've been so annoyed that I have gotten away from it for a few days. Keys have temporarily whipped me. Seems my problem is that the backside of my Gib key is angled and as soon as I begin tightening down against it, my pulling devices start to angle and then wedge themselves sideways on the crankshaft, creating far more resistance to pull agianst. Plus, I'm a bit afraid to tighten down against the Indian casting of the flywheel hub with the grade 8's for fear of cracking the flywheel.

Houndog
 


A couple of websites recommend filing or grinding the tangs square.  This helps to eliminate the tendancy towards angling of the puller. An alternative method is to grind or file a corresponding angle on your puller.   As to tightening against the casting... place a piece of CRS or channel against the casting to distribute the pressure.   Good luck with this.

2
Listeroid Engines / Re: Lister flywheel removal
« on: February 24, 2007, 01:23:01 PM »
Clean all that paint off of the key and crank first.  Then, as John said, clean up the keyway.  My puller is 3/4" thick.

Be prepared for a broken key!  one of mine had a crack extending through 1/2 its cross section.  The tang broke off while attempting to remove it.  I made drill guides on a mill, and drilled the sucker out.  It took the best part of three days, and 12 long drill bits.

Good Luck, and have fun!

3
Listeroid Engines / Re: Used engine oil as fuel?
« on: February 21, 2007, 11:37:52 PM »
Dieselman, check your local regulations before comitting to this route.

Here in NS we have very strict regulatoins for used motor oil...
You must be certified to collect it.
It is illegal for garages and other waste oil collectors to allow anyone uncertified to remove the oil.

In case of an oil spill...
Spills over 100 liters MUST be reported.
Reported spill clean-up is under the control of the province.
A certified clean-up contractor MUST be used.
A certified project manager may be imposed.
Soil / water monitoring may be imposed for an indefinate period.

All of this is to be paid for by the property owner.
This will be VERY expensive, due to govenment and evironmental group involvement.

I'll stay away from this, at least  in my area. 

4
Listeroid Engines / Re: dynamic balancing
« on: February 12, 2007, 01:37:47 PM »
Wow! 400+ gm is almost a pound from the rim.  How do people do this?  

I was thinking of using the same general method as I use for my R/C helicopers.  Could someone in the know comment on my procedure?  Basically the procedure would be as follows for my 20/2:

1. Remove the heads, secure the cylinders with short pipes to make up the head distance to the nuts on the studs.
2. Remove the idler pulley
3. Remove the #2 piston / rod, counter balances, and the associated flywheel
4. Spin by hand and mark the flywheel at the bottom when it come to rest.  Repeat several times.
5. If flywheel comes to rest at about the same place repeatedly, drill out some material in the center of the marks, and go back to step 4.

The flywheel should now come to rest at random points along its circumference.

6. Re-install the #2 piston / rod, counter balances, and flywheel
7. Spin by hand and mark the #2 flywheel at the bottom when it come to rest.  Repeat several times.
8. If #2 flywheel comes to rest at about the same place repeatedly, drill out some material in the center of the marks, and go back to step 7.

The flywheel should now come to rest at random points along its circumference.

Note that minor corrections can be made by drilling material from the counterbalances, if the piston repeatedly comes to rest near the top of the cylinder.

The camshaft could be balaced in a similar manner.


5
Listeroid Engines / Re: GM-90 passes Tier 2 testing
« on: February 03, 2007, 07:41:44 PM »
the robber barons informed me that it would cost me $60 month to use no electricity... It's not one for the faint of heart though!!!!

In NS it's about $22.  I'll pay it for the peace of mind.  Throwing a transfer switch is easy for my wife to do if I'm ill or injured.

One of my co-workers was without power for 29 days in that same ice storm.  After a week the president of the company we worked for flew in a genset from Texas for her.


6
Listeroid Engines / Re: GM-90 passes Tier 2 testing
« on: February 01, 2007, 03:45:49 PM »
In any democracy the government is "We the People".  Perhaps "We the People" should have exercised our duty prior to the formation of these regulations. If we fail to keep ourselves informed, or to raise our voices when we will be adversely affected by political action, we have no right to complain about the results.

Go back to Mike's last post.  That's the ONLY hard information we have on what transpired.  Everything else is pure speculation.  Let's stop making problems for ourselves, and get on with it.

As to certification of the Lister Style diesels...  

Does anyone know if the EPA issues exemptions for engines run on alternative fuels such as SVO or BioDiesel?

Will the Lister Syle engines pass the EPA tier two emmission standards running on these fuels?


7
Listeroid Engines / Re: GM-90 passes Tier 2 testing
« on: February 01, 2007, 01:19:09 AM »
damn, looks like Mike has left the forum

Can you blame him? From the code of conduct:

"... That being said, one flame war can really stink the place out...

1.   No Personal attacks – debate the idea, don’t attack the messenger
"

IMHO this has occurred.  A member went from a polite question to a direct accusation, without waiting for an answer.  The rules of conduct should be enforced. Perhaps in the future the moderators will remove such posts, and inform both parties of the reason.

We can't afford to eat our best and brightest.

8
Listeroid Engines / Re: A few questions
« on: January 29, 2007, 01:54:56 PM »

My 5 Kw Chanfa has just over 500 hrs on it, and is still running strong.  It is a noisy beast, but has electric start on it.
 

Agroot,

What size Changfa did you get, a 195?  Did you ever examine the insides for sand?  How often do you change the oil, clean the oil filter?  Ever see any crud in it?  Have you had to remove/service your injector yet?  Run on diesel or what?

I bought the PowerWerks 5Kw Diesel Generator set from Boss Tool Supply. It's now sold as a P3. The engine appears to be a Model CF186FE.  I haven't had it apart.  I changed the oil at 5, 15, 50, and 100 hrs, then every 100 hrs. I have not noticed any crud in the oil.

It has been run for about 20 hrs on WVO, the rremainder of the time it has run on BioDiesel.  I store it in the basement, and move it outdoors when required.  This keeps the BioDiesel liquid, even at -25C.

9
Listeroid Engines / Re: A few questions
« on: January 28, 2007, 08:45:33 PM »

My 5 Kw Chanfa has just over 500 hrs on it, and is still running strong.  It is a noisy beast, but has electric start on it.

A 6 HP Listeriod coupled with inverters, such as the Xantrex SW5500, can deliver 11KW peak, and 3-4KW continous power.  Daily run times would depend on your power usage.  Increasing the power from the generator would decrease daily run times.  Consider a second generator as a backup for those times you need to maintain your primary power source.  Design your system with at least enough battery capacity for a full day.  Murphy rules!
 

10
Listeroid Engines / Re: I'm New To All of This
« on: January 24, 2007, 11:52:05 AM »
The Tod is a most worthy project.

Too much of our engineering past has been scrapped.  The large scale open engineering is awesome to behold as a static display, and wondrous in operation.  Many of our young engineers will benefit from a display of their roots.

Another possible revenue stream would be the sale of scale plans for the engine.  You may be able to get Sherline or Taig to cover costs of drawing them up.

Generating the electrical power for the museum with an engine that matches the period is an excellent idea.

Were you able to save more of the plant, or were you limited to it's heart?

 

11
Listeroid Engines / Re: Its ALIVE!!
« on: January 17, 2007, 12:07:51 AM »
WOW! There are a lot of Canucks here..

I had my "Welcome back to Nova Scotia" power outages last week.  I had two in one day totaling 4.5 hrs.  This nudged my Chanfa powered generator over 500 hrs. Except for the first ten hrs, this has all been on BioDiesel.

 I'm almost ready to drill the GIB key from my 20/2.  I had some problems with my desktop mill due to the move.  The Y axis driver shorted out.

Anyway, congrats on getting your system powered up.

 

12
Listeroid Engines / De-Carbonizing / Reducing NOx Emissions
« on: January 14, 2007, 11:59:13 AM »
There's a thread in the BioDiesel and SVO Discussion Forums on this subject.

Basically, they're recommending adding water to the combustion chamber of a hot engine.  A trickle of 25-50 cc/ minute is used to reduce the NOx emissions, and  reduce carbon build-up for small engines.  A shot of water is used to clean the carbon out of the cylinder.  They're uncertain as to whether or not this would clean the buildup from the rings.

Apparently this method is routinely used in larger diesels.  Does anyone here have any experience with this?

13
Listeroid Engines / Re: Video of Running Engines!
« on: January 09, 2007, 01:04:16 PM »
You can also right-click/save as a short name, then open the video on your PC.

14
Listeroid Engines / Re: rpm
« on: January 08, 2007, 09:48:17 AM »
If you are driving a generator, the Kill-A-Watt will give you the frequency.  You can calculate the RPM from the frequency, if you know the diameters of the pulleys.

RPM = (f*60/Np) * Pg / Pe

f = frequency
Np = number of poles on generator (2 for 1500 or 1800 RPM generators, 4 in 3000 or 3600 RPM generators)
Pg = diameter of pulley on generator
Pe = diameter of pulley on engine

15
Listeroid Engines / Re: Lovson 20-2
« on: January 08, 2007, 12:30:16 AM »
A better check would be to roll the valve stems on a flat plate.  I bought a granite plate at Lee Valley Tools.  Most places that carry mackine tools will have them, and they are relatively cheap.

If your engine came with spare valves, check these as a comparison. If the valves are bent, the engine was probably assembled without properly aligning the timing gears.  When it was turned, the valves would have contacted the pistons, bending them. Check your valve guides as well.  These too, will sometimes bend. 

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