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Topics - carlb23

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16
Listeroid Engines / Air Starter 4am
« on: April 19, 2008, 09:00:48 PM »
I just picked up a slightly used 4am air motor real cheap and i want to use it to start my 6/1. The motor has a 1/2 diameter shaft and I was wondering  what diameter friction roller people were using on their 4am's

Thanks

Carl

17
Listeroid Engines / Tach / Hour meter
« on: March 25, 2008, 03:01:08 PM »
I found this item on the northern tool website.  Looks pretty good for the money.

http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200322901_200322901

18
Generators / Ac/DC
« on: December 12, 2007, 01:56:36 PM »
Hi all,

I am running a 6/1 with a 4kva head that i would like to extract DC current from ( At night) to hook to one of my grid tied inverters.  Can i use a standard bridge rectifier say 35 or 50 amp @ 500volt and hook it up to the 2 120 volt leads comming from my generator and get 240 Volts DC.  My inverter will operate in a wide input range 150 to 5oo VDC so it would be in the voltage range. 

Do you think any kind of filtering to smooth out the waveform would be necessary and if so how would i do that?


Thanks

Carl

19
Listeroid Engines / Just posted a video of my Metro 6/1 on youtube
« on: July 28, 2007, 04:49:55 PM »
I just posted a video of my Metro 6/1 running @ 25 amps on youtube. 

http://www.youtube.com/user/hotrod3737

Carl

20
Listeroid Engines / Fuel Filter
« on: July 17, 2007, 01:01:17 PM »
I am looking to replace the stock / original fuel filter on my 6/1 Metro.  The stock one tends to leak  and the filter is real crap.  I am looking for recommendations for a replacement. 


Thanks

Carl

21
Listeroid Engines / 6/1 compression Ratio
« on: July 13, 2007, 11:15:54 PM »
I wanted to check the compression ratio on my engine since i was seeing some grey smoke running at about 2/3 load.  I pulled the head off and checked the piston to head clearance and it was .085 I also cc the head and found the pre-combustion chamber to be 76cc and each valve was recessed adding another 2cc per valve for a total of 80 cc of volume in the head.  I pulled the cylinder and found three gaskets under the cylinder 2 gaskets @ .010 and one @ .020 for a total of .040.  I removed one .010 and the .020 gasket and now only have a .010 gasket under the cylinder.

I re-assembled the engine and checked the piston to head clearance and it is now a respectable .055. Based on that clearance and the volume of the head I calculate the compression ratio to be 16.10:1 Does this number sound right to you guys?

Thanks

Carl

22
Listeroid Engines / Trying to Balance my 6/1
« on: June 24, 2007, 02:56:11 PM »
I am working on trying to balance my 6/1 Metro and I am finding some interesting things.  I decided to try to dynamic balance the engine while running at 650 rpm with a 2k load since this is about the normal load it would run in a power outage. This is a backup only and we only have one or two outages a year so it doesn’t need to run too much.


I rigged a setup with a fine tipped magic marker to a stationary rig with a screw type fine adjustment. It is inline with the crank shaft centerline on the intake side of the engine.  I have my engine mounted on a steel (I beam) frame which is bolted through 8”x8” timbers with a vibration dampening layer between the steel frame and the wood as well as vibration dampening layer under the wood which rests on the concrete floor.  This arrangement allows some movement but very little vibration is transmitted through the concrete.  You cannot feel the engine running if you move 5’ away from it. There is no vibration present in the house at all (the engine is in an attached garage on a 5” thick concrete slab.  While watching the engine run you can clearly see it rock back and forth slightly, so I started the engine and while under a load I carefully adjusted the marker until it just touched the flywheel of the running engine.  I then repeated this on the other flywheel just to see if they corresponded with each other.

What I found was that there was a line about 10” long on each flywheel in the same position relative to TDC which was 180 Degrees from TDC. My flywheels have counterweights which are 180 degrees out from TDC and I suspect that they are too heavy since that is where my line on the flywheel is.  It would make sense that if the counterweights are too heavy the engine would move in that direction front to back when running.

That being said I have two choices.

Option one to drill the counterweights to lighten them (I don’t know if I want to be drilling on the flywheel or not)

Option two add weight opposite the counterweights to counter the imbalance problem.

So far I have tried adding clay to the opposite side of the counterweight and have found that it does reduce the rocking substantially. I have added a total of 18 0z per flywheel and still may need a little more.   

Any opinions or observations regarding my method of testing and possible solutions to the problem are greatly appreciated.

Thanks

Carl

23
Listeroid Engines / Rings and piston to head clearance questions
« on: May 24, 2007, 10:07:34 PM »
I have dismantled my 6/1 Metro and when I removed the piston rings I noticed that one of the compression rings (i believe it was the lower one) had a step in the bottom of it. 

Is that in fact the lower ring on the piston and is this step in the ring normal?
I saw no top or bottom markings on the rings so i suspect they can go either way  is that correct? ( I have only run this engine for about 2 hours and there is still a real good cross hatch in the cylinder)

When I took the head off i checked the piston to head clearance and it was .077.  In looking at an original lister manual they call for .045 to .050  I have also read on Georges cd that the 6/1 should be between .060 and .065.  Can i get a few ideas what you guys are running for clearance?

Thank You,

Carl.

24
Listeroid Engines / Engine tear down
« on: May 21, 2007, 02:43:34 PM »
I purchase a Metro 6/1 a few months back. I did a visual inspection of the crank case for dirt and sand before starting the engine and it looked clean.  I made the frame and installed the engine, generator and exhaust system.  I setup the cooling system and have about 20 hours on the engine.  It was running fine but then it started weeping water from the head gasket.  I figured this was a good excuse to tear down the engine. After taking the head off i figured i would check the piston to head clearance with the old
gasket and it was .077" I think the correct clearance is .060 to .065 for a 6/1 but I have to check to make sure.  When i removed the piston/rod i found a little dirt in the bearing shell and a small crack in the upper half near an oil hole.  I contacted Sam Crosby the person I bought the engine from and he is sending me a new big end bearing.  I was happy to find after the tear down that i couldn't find any sand.  Before i started the engine for the first time i placed a magnet in the bottom of the crank case. When i drained the oil there was just a very small amount of metal stuck to the magnet. So far everything looks fine in the engine.

25
Listeroid Engines / cylinder head removal
« on: May 18, 2007, 11:36:14 PM »
Hi,

I recently setup a Metro 6/1 and it was running fine. Over the last couple of weeks it seems to be weeping a little around the head gasket. I ordered a new gasket set and proceeded to try to remove the cylinder head to no avail. I removed the 4 nuts on the studs and assumed that the head would separate from the cylinder but I could not get them to separate.  I did not remove the rocker arms or the injector since I can't imagine that would have any bearing on the removal of the head.  Am I missing something?

Thanks

Carl

26
Listeroid Engines / injection pump and exhaust update.
« on: May 01, 2007, 07:57:21 PM »
I am in the process of setting up a 6/1 Metro and all has been going well.  It seems if my engine sits for a week or so and I go to start it i am not getting fuel to the injector and i have to crank the engine over for a while before i hear the injector "Crack".  Has anyone had any problems with the injector line bleeding down? I did check the line between the IP and the injector and there are no cracks,  no leaks and the fittings are tight.


Exhaust update:

 I needed to install my engine and keep the exhaust quite because our next door neighbor is only about 75' away from the garage which is where the lister resides. I have the exhaust exiting straight out the top of the garage and have tried several mufflers but none would keep it quite enough for me.  What I decided to try was to install a T at the head on the engine.  I then ran a 2.25" exhaust straight up into the muffler and out of the garage this setup was still loud so i put an empty 20LB propane tank connected to the other side of t he T to act as an expansion tank to collect the exhaust and slowly release it while the engine went through its other three strokes. This worked like a charm and now you can't hear the exhaust even 15' away. The only modification I did to the tank was to remove the valve and cut a hole to accept a 1.5" ID black iron pipe and welded it in.

27
Waste Vegetable Oil / WVO VS Biodisel
« on: April 23, 2007, 02:33:50 PM »
Hi,

I am just getting my Metro Listeroid genset straightened out and all is going fine.  I am now starting to investigate running it on alternative fuels.  I am looking for opinions on which fuel is better from a manufacturing standpoint and a running standpoint. I have access to WVO and I understand that even if i want to make bio-diesel I must first clean the WVO to a point that I could run it in my listeroid anyway. I understand that using WVO that i must start on Diesel or Biodiesel before switching over to heated WVO. Building a heat exchanger for the WVO is no big deal and I think this is my best bet but, being a newbie i would appreciate input from some seasoned veterans.

Thanks

Carl

28
Generators / Pulley
« on: March 26, 2007, 09:58:20 PM »
I have a 6/1 metro that i am setting up. The flywheel is 23.5"  setup for a 6 grove belt.  I need a find a 6 grove pully for the gen head.  Can anyone point me in the right direction as to where i can buy one.  The gen is 1800rpm 4 pole so the pulley should be 8.25" if my math is correct.
Thanks

Carl.

29
Listeroid Engines / Lister Cooling
« on: March 25, 2007, 02:29:02 PM »
Hi,

I have just finished up my frame, gen mounting and exhaust.  I am now moving onto my cooling system and have run into a problem.  I have done and search but can't seem to find an answer to my problem.  I plan on using a high performance aluminum radiator designed for up to 500hp V8 applications( leftover from one of my race cars ).  I plan to also use one or two small 110vac electric fans through a temp switch.  The upper radiator hose is 1.5" id and he lower is 1.75" id.  The fittings on the lister are 1" od and I was wondering how people are making the transition for one size to another and what type of hose are they using.  I will need to have aprox 4" of hose from the engine  to the radiator.  Any suggestions where to get the approiate hose or adaptors would be a big help. 

Thanks

Carl

30
Listeroid Engines / Just joined the club
« on: March 01, 2007, 02:31:58 PM »
Please excuse me if these questions seem stupid but I am new to this and I want to do it the right way the first time.  This gen set will be used for backup only since I am grid tied.
While I have never worked on diesels before I have over 20 years working on high performance V8 gas engines.

 I ordered a 6/1 Metro with a 4kWh head and readout from Sam Crosby (seems like a very nice and helpful guy) up in Maine on Tuesday and it is scheduled for delivery tomorrow.  I have been reading posts here for some time now and I was looking for opinions as to weather I should take it apart before even starting it or should I start it to see how well balanced it is first. 

If I take it apart should I completely strip it down and remove the crank and flywheels (this seems to be a real pain) or just pull the head, piston, rod, gears and IP and clean an paint the internals with Glyptal ?

Is there any way to check the balance of the Crank/Flywheel assembly without removing them from the engine?

Thanks in advance for your help.

Carl

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