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Messages - cujet

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856
Listeroid Engines / Re: Has the EPA doomed the future of our engines?
« on: March 09, 2006, 02:39:46 PM »
There is some new regulation coming about this year and next. (AS I UNDERSTAND IT, I could be wrong) Tier 4 requirements will apply to stationary CI engines of all sorts and displacements. With the exception of certain very specific emergency use engines only. This may be the loophole we need, as Lister types are generally used for standby power generation.

While some of this information is contained in a NPRM, these often are written into law without opposition.

Chris

857
Oops, I wanted to add that there is a modern "performance" engine rebuilder that has had a rash of bearing failures. The "silicon carbide" from the polishing process was cleaned out but enough of it remained to cause destruction in short order. From what I understand, you can not even see this stuff.

For those of you polishing your own crankshafts, valve stems, tappet stems and other internal parts: MAKE SURE to clean off the part with more than one type of cleaner. Detergent and water works best, except for the resulting rust. Carb cleaner, brake cleaner, WD40, and whatever else you can find would be a good idea.

Also, it is always a good idea to change oil shortly after the first startup, as this is the time the oil has the most debris. Maybe consider 30 minutes? Then again at some other short interval.

Chris

858
Like many of you, I work with engines all the time. I have a 400HP Mazda Miata with one of my engines in it. I also have plenty of road race automotive engine experience. However I do not build engines for a living, so my know how is limited by comparison to the pro's, but otherwise quite good.

Bearings rarely have catastrophic failures. Automotive engines are great examples of this, with all the abuse and lack of maintenance.

While the oil used may or may not be an issue, my guess is that this bearing had a problem from the start. Maybe the dipper was screwed in too far? Maybe the rod side clearance was too tight. Maybe some metal shavings or grit got into the rod bearing and never left, causing a high rate of wear. Most bearings can tolerate a certain level of grit. Beyond this, they fail.

Also, used oil anlysis may have found this problem before it became a disaster.

Chris


859
Listeroid Engines / Re: Who has the highest time listeroid
« on: March 04, 2006, 03:36:15 PM »
Bob, what I was trying to say is that the quality of these engines is quite low. Even so, they last a long time by virtue of the low rpm nature of the engnie. I truly believe that the addition of some higher quality parts would result in ultra long life.

Chris

860
Listeroid Engines / Re: Who has the highest time listeroid
« on: March 03, 2006, 11:20:17 PM »
I have my GTC brand fully apart. I have found all sorts of things that would lead to shorter lifespan than the ORIGINAL Lister. For starters, the bore is spun cast iron. Chrome bores are generally considered to have 10 times the lifespan. The rings are also cast iron. From what I can tell, they are not even ductile iron. This is the shortest life span ring style available. The valves and guides are rough and the valves are made of a very soft material. The tappets shanks are also rough as are the tappet guides. This cannot be good. The crankshaft was bearing chewing rough. The idler shaft is rough, as is the idler gear bore. A bearing or bushing here may help.


So, my conclusion is that the Listeroids fall far short of any modern engine as far as the quality of the parts go.

Chris

861
Listeroid Engines / High output Lister types
« on: February 23, 2006, 01:41:28 AM »
Rumor has it that a 30+ HP engine is being made. Anyone know about this? Any specs about bore and stroke, RPM etc?

Chris

862
Listeroid Engines / Re: GTC engine teardown and commnets
« on: February 23, 2006, 01:28:01 AM »
You have applied so much lipstick to that pig that it LOOKS FANTASTIC!

There is no way I can let you get away with a better looking engine than me,,,,,,,.

You just increased my workload 400%

Nice job!

Chris

863
Listeroid Engines / Re: "Code talkers"
« on: February 22, 2006, 04:27:41 AM »
Wow, what a thread. I believe that Lister engnes from India seem to "all" have quality issues. Even the best from what I can tell. I ordered 3 engines from a less expensive exporter (GTC) and got exactly what I expected with a few additional flaws thrown in for good measure.

So far the exporter is willing to fix the issues one by one and clearly stands behind his product by sending new replacement parts. So, I am pleased, for sure.

The issues are: sand, rough cranks, dings in one crank, 1 really bad rod, sand, sand, rust in 1 cylinder, scores in another, non rotating tappets and bearings need to be changed.

So we clean, polish cranks, change bearings and grind tappets. Not really unexpected at all.

Chris

864
General Discussion / Re: tips, bearings and tapers etc...
« on: February 19, 2006, 08:29:08 PM »
My electronic engineer friend says;  nearly every  unexplained electronic component failure is due to a faulty solder joint. Get a good jewlers loop 10X and study the electronic connections. I believe him.

Chris

865
Lister Based Generators / Re: 900 rpm 8 pole genhead
« on: February 18, 2006, 12:39:19 PM »
As you might guess, you can make a generator head yourself ALA wind power guys. The problem comes with achieving a good sine wave. At this point, it may be easier to drive a low speed direct drive PMG and charge batteries for an inverter system.

Chris

866
General Discussion / Re: Good news...Bad news...
« on: February 17, 2006, 12:22:55 AM »
I purchased a Robin Subaru 11HP generator at Costco. It built my house with it (9 months near daily use), powered my new house before the grid was up for a 24/7 for a week. Then it powered my house 24/7 after 3 hurricanes. I would guess it has 1000 hours of hurricane use alone! Then it went to dads house for 2 more weeks of solid 24/7 use. I use syn oil (15-50) and change it every 2 days.

By the way, it is horrible on fuel consumption. Hurricane #1= $350 gas, #2= $400 gas and #3 would have been $650 if it were not for the generosity of my boss!

Chris

867
Listeroid Engines / Re: Specific Fuel Consumption
« on: February 17, 2006, 12:11:55 AM »
Looks like the Indian diesel is most efficient at 75% load. Of course, comparing this to an original 5-1 is hard to do, as the 5-1 may have less fuel flow available (hence the lower HP output). Therefore the 5-1 at near 100% could be considered near 75% power on India made engines?

Chris

868
Listeroid Engines / Re: Energy in 6/1 flywheels
« on: February 17, 2006, 12:05:42 AM »
While I am no expert in this matter, I have done some internet reading on gen heads. I contacted an engineer (in NY) that builds gen heads for industrial applications. His claim was that it takes all sorts of interesting design improvements on a gen head to get grid like power. Skewed rotors is the first step (according to him). Electronic voltage regulation is another step. He was talking way over my head with the engineering data, however it all made sense at the end of our discussion.

Getec is the company that sells his products and the price is somewhat competitive with Flea Bay ST heads. Getec makes some big generator heads too!

Chris

869
Listeroid Engines / Re: LUBRICATION RELATED
« on: February 16, 2006, 11:59:27 PM »
Ya know, if you are really cheap and frugal, I am sure a way could be devised to use gravity to move oil through a spin on filter. I have seen such ideas on other types of equipment, where oil slung goes into a funnel and then through a filter. This would be an external version of what some here have done internally.

Chris

870
Listeroid Engines / Re: Energy in 6/1 flywheels
« on: February 11, 2006, 11:54:41 PM »
There is not really a way to use caps to store AC energy. DC energy can be stored by capacitors. That and an inverter in sync with the genset would work. But at that point one might as well use batteries.

The energy in those huge Lister flywheels is less that it would seem at first. Because the engines are so slow, the actual stored energy is not enough to smooth out the power pulses.

Chris

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