Spencer1885
I am sure glad you started this thread just at a time when I am starting to experience the wear you speak of.
How often do your change oil?
I have been working up to 300 hours and will stay there for now. The oil is very thick and black, it starts out as 30w rotella and is total garbage when it is changed out. I was thinking maybe going past 200 hours would make it worse but it doesn't seam to be any worse at 300 hours, thicker or sticker that is.
I hear what you are saying about the ash being abrasive, when the injector is out and the piston is at TDC both valves closed I have used an air hose pointed straight down into the empty injector hole and have been able to blow out quite a bit of ash and carbon debris. The air blower and my hand then look like I have been playing in an ash bin. I will pay more attention next time I do it,I do believe the the stuff on my hand is like you say abrasive.
So if the injector pump and injector are handling it and not wearing out the only explanation is the additives in the oil are the culprits.
I have to wounder if the splash lube for the cylinder walls is not enough for the more abrasive fuel. If a modification to the oiling system increasing cylinder wall oiling would help or just make the engine use oil. Right now my 10/1 uses no oil except for some leaks which are my fault in not sealing studs well enough.
Did your engine start to use oil just before you disassembled it?
Have not noticed any difference in the oil in the sump.
I was changing it every 500 hours.
I have not changed the oil at the last 500 hours as I have to top it up every day with about 3/4 of a litre or so ,as its breathing so much and blowing the oil out.
When I pulled it apart when the head gasket blow I did not put new rings in to replace the worn out rings I just stuck in a better set of second hand rings I already had.
This probably is when the oil consumption started to increase as the rings probably did not seal very well on the worn bore.
If when you strip your engine and your bore is good but the rings are worn out then that's good news as a set of rings is cheap but if the bore has worn out then it starts to get pricey.
If I could get a year out of a bore then it would be more viable.
I have got a Lister FR1 which I am going to set up on waste motor oil and see how that runs on it.
I have a spare engine so if the FR1 wears its bore and rings I can use the spare engine for parts and I should get a year out of it that way.
If the WMO is the problem then once I have used up the engines I have I will abandon the project.