Did you go to college and take chemistry or biology. Was there ever a time that the information you recorded from one experiment was ever considered FACT. I don't think so. Not in the UK and not in the USA. You run numerous experiments to prove a FACT. This is no different.

"... so just post something informative"

boy,, thats like the pot calling the kettle black !

bob g

Spencer read my post. I said I hope it will be a productive day. Not 10 pages of arguements about the very same thing OVER AND OVER AND OVER AGAIN. There has been some valuable information posted last night. Just take time to read it before you decide it's not on point. OK. You also need to read how Bill who you refer to as one of your witnesses is going to be ready to have his other engine up and running and plans to introduce WMO as a fuel source. It will not be 100% but his engine will be using it again. So that tells me he is not 100% sure it is bad stuff completly. Mike

Maybe this will be a productive day. I will have to wait to see since I got called in last night to work after working Thursday night and being awake all day Friday. I may just go to sleep. Hopefully there wont be 15 more pages to read through. DD

Quote from: mobile_bob on January 28, 2011, 09:24:23 PM

Spencer

from your last post

"The first thing to understand is you can not use WMO neat"

yes i can, i can burn any motor oil up to 15/40 in my changfa at 100%, no solvent
and no preheating of the fuel, i do have to start on diesel and warm up for a couple minutes though.

"Engine oils are not like veg oils which can have there viscosity reduce by heat"

that too is false, cold oil is very thick, get it hot and it will become much less so.

"Lubricating oils are design to resist heat and there viscosity is design to be stable so you can not reduce there viscosity to suitable levels with heat alone."

yes i could, but i don't need to heat the oil for use in the changfa

"So you must cut it with a solvent to make it suitable for the injector to spray."

no i do not have to reduce with solvent, although i might prefer to do so with pump diesel it is not necessary in the idi changfa.

"This is your first COST buying a solvent"

very true, no argument from me on this point, however the cost of the solvent/diesel
used to thin will also reduce the amount of ash and abrasives, which will have a positive effect on engine life, so that additional cost might be acceptable or even desirable.

"The next cost is the replacement rings, bore, piston and gaskets
365 days a year and 8 hours a day of running the generator means you need to get 2920 hours per year from our generator."

this is another area where we part ways, i cannot understand the need for operation of an engine/generator for that many hours per day across the whole year, i could make a very compelling argument for an average of 2 hours per day with a hybrid system that would compete well with grid power. for a total run time of less than 800hr/year

the cost of a changfa cylinder kit, big end brg, gskts for a 195 is less than 150 bucks retail, and less than 100 bucks if bought direct in quantity.

"You will need every year to replace 2 sets of rings 1 piston and a bore."

see above, under my suggested operational parameters, the replacement would be
closer to every 3.5 years and only if the changfa wears out as fast as the listeroid. we
have evidence to the contrary so the meantime before overhaul might well be 5 years or as many as 10 or more years operated accordingly.

"6 hp generator will run a modest house, so unless you can't get grid power the economics don't make sense to generate your own power."

this is true if all you are doing is generating electrical power, and your grid rates are reasonable, however this is not the case with cogen in cooler climates that have high grid power rates.

actually under the certain operating parameters one could generate electricity very competitively with the grid rates in cogen mode even if the rates are quite low, so long as there is a need and use for the recovered heat, but

the basic problem you have is the 6hp engine for a modest house, it would generally have to run long hours to cover the load requirements, and is not large enough to do both cover the loads and be able to recharge a battery bank at the same time.

it takes about 12hp to do both for a modest home in moderate climates for the majority of the year and do so efficiently averaging 2 hours per day run time.

here again the changfa has an advantage over the listeroid, the changfa can produce 10kw/hr/gallon (US) where the 6/1 will do well to do 8kw/hr/gallon (US)

we are now gettin into the weeds and likely would need to start another topic to explore this fully.

bob g

Spencer,

This is the way I see it. If you do not have a Changfa type engine like Bob G and others you cannot say that the engine will suffer a short life. I know that the Changfa type engines are made with much higher quality parts. I have been around both and I know for a fact that the S195 will run on straight WMO.

I think all of us are pretty much done with listening how bad WMO is for all engines. We cannot help that your engine did not last as long as you expected. So I think it is time for you to take a step back and re-read to what others wrote. So what if a Changfa only runs for  lets say 2000 hours on WMO. And the oil is free. How much do you think it will cost to install new sleave,piston, rings, gasket in a S195? The bottom line is the cost rebuilding is so little that I don't see a problem. But from what I read the S195 engines are putting on hours.
And about your last post. Let me make this very clear. Others here have much more experiance than you and I would beleve what they written on this topic more than your posts.

Also your real life results are with what? A Lister or Listeroid? My recomendation is do not run WMO in your engine and let others run what they want and end your desussions on your experiance with WMO.

Henry

Lets get this clear, my hobbies are mostly mechanical and stationary engine are included
Spencer this was you statement your own words...... hobbies are not a way of life. Hobbies are something you do because you enjoy it.
David is completly dependant on his system. It is not his HOBBY. Just remember that.

As for your last post it means nothing for people living the bush. I don't see where that came from