RAYZER
Well-known member
- 3,380
- 59
- 48
- Location
- sanford/florida
Burning wmo for 3 years,15000 miles.
-
Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Photos of combustion chambers & injectors from 2 engines running WMO
- Thread starter oddshot
- Start date
gimpyrobb
dumpsterlandingfromorbit!
- 27,786
- 758
- 113
- Location
- Cincy Ohio
HA! I recognize that board in the left of that pic...
Beyond Biodiesel
Active member
- 373
- 37
- 28
- Location
- Prescott, AZ
Thanks for more information in support of burning WMO in a deuce.
OK, so this is good analysis of engine internal working parts and whether they will be in contact with the WMO in such a way that it could cause excess wear on the engine. Rayzor's conclusion is the only place where wear is going to occur is in the fuel system, ie injectors and IP. So, if the fuel has been properly dewatered and filtered, say 1-3microns, then there should be no wear on the fuel system, because abrasive particles that small are only going to function as a polish.
I agree photos would be good of the same engine parts from a mulitifuel engine that was only run on D2; however, personal testimonies do help as long as it is not BS.
On the other hand it has been my experience that wmo fuel that has been filtered and thinned properly produces much more ash and coke on the injectors of an indirect injected non-turbo charged 6.2L. I have lots of coked injector photos to upload, if anyone is interested.
From spending a lot of time massaging my WMO to reduce the coke I have found that the coke I find on my injectors is not just carbon+ash, which the definition of coke. I found once I removed the carbon I still had coke, but it was yellow, not black. Yellow coke on injectors is going to be sulfur. Sulfur has a fairly low boiling point with respect to a combustion chamber, so it can precipitate out on the injectors in a pre-chamber in an indirect injected diesel engine. The sulfur in WMO comes from the "additive package" that boosts the lubricity of motor oil.
Woodsplinter
Member
- 723
- 6
- 18
- Location
- Phoenix/AZ
I was just going to ask what "straight #2 diesel" injectors look like- guess I'll have to wait.
Terrh
Member
- 147
- 9
- 18
- Location
- Detroit, MI
The anti WMO folks can be silenced just by the fact that I've put enough "free" fuel through my truck to buy 1.5 more trucks with, or probably 5 complete junkyard engines.
I've gotten some hilarious responses, my favourite was a guy who just flat out did not believe me and told me I was lying to him, because it was absolutely impossible for the engine to burn anything but diesel and that I'd get horrible smoke if I tried. I even offered to have him look at my fuel filter but he wasn't willing.
if I ever have to pull the injectors out of my duramax I'll post them up here.
I've gotten some hilarious responses, my favourite was a guy who just flat out did not believe me and told me I was lying to him, because it was absolutely impossible for the engine to burn anything but diesel and that I'd get horrible smoke if I tried. I even offered to have him look at my fuel filter but he wasn't willing.
if I ever have to pull the injectors out of my duramax I'll post them up here.
- 1,180
- 163
- 63
- Location
- Marietta, Georgia
For reference only,
Pictures of a multi, LDS-1A, 15000, DF-2 only.
Pictures of a multi, LDS-1A, 15000, DF-2 only.
Attachments
Beyond Biodiesel
Active member
- 373
- 37
- 28
- Location
- Prescott, AZ
Thanks, Squirt-Truck. Your D-2 only multifuel looks a lot cleaner than the above engines that had run WMO. But the engines that had run WMO still look pretty good for having run garbage as fuel for so many miles.
Woodsplinter
Member
- 723
- 6
- 18
- Location
- Phoenix/AZ
For us non- mechanics, what's the purpose of the hole on top of the piston?
RAYZER
Well-known member
- 3,380
- 59
- 48
- Location
- sanford/florida
This "cup" is part of the hyper cycle design.
Fuel is injected into this cup.
RAYZER
Well-known member
- 3,380
- 59
- 48
- Location
- sanford/florida
How much clean up if any to the tops of these pistons?
gimpyrobb
dumpsterlandingfromorbit!
- 27,786
- 758
- 113
- Location
- Cincy Ohio
What is welded on the frame behind the alt?
Jeepsinker
Well-known member
- 5,399
- 457
- 83
- Location
- Dry Creek, Louisiana
Under hood roll cage mount? Hood prop?
Woodsplinter
Member
- 723
- 6
- 18
- Location
- Phoenix/AZ
gimpyrobb
dumpsterlandingfromorbit!
- 27,786
- 758
- 113
- Location
- Cincy Ohio
Ask and you shall receive!
Terrh
Member
- 147
- 9
- 18
- Location
- Detroit, MI
That was an awesome read, a bit hard to read at first with dated technical wording but excellent info. I think I learned more in the last half hour than I have all day!
- 1,180
- 163
- 63
- Location
- Marietta, Georgia
The pistons were not cleaned at all, that is what they were like when the heads came off.
Gimp, The bracket on the frame rail is a clamp on base for a lifting rig to support the heads for removal and re-installation. Think of if as a mini davit crane. Reaches from the heads to past the fender. Use a small hoist and no straining in or out.
Gimp, The bracket on the frame rail is a clamp on base for a lifting rig to support the heads for removal and re-installation. Think of if as a mini davit crane. Reaches from the heads to past the fender. Use a small hoist and no straining in or out.
RAYZER
Well-known member
- 3,380
- 59
- 48
- Location
- sanford/florida
Brilliant on the head crane!
Were the heads removed because of a blown head gasket, were the head gaskets the old style?
Last edited:
- 1,180
- 163
- 63
- Location
- Marietta, Georgia
The front gasket was leaking oil at the front. All fire rings in good condition, second or third generation multi-part gasket. Original gaskets installed in 1989/90 when engine was overhauled.
Still, not sure if this is a fair comparison on the appearance of the piston tops. This is an LDS-1A with the proper ONE hole injectors. It gets run at 2300 to 2350 on the road, runs 95% minimum DF-2, has plenty of power, will run to the governor with 26,000 in the bed or 30,000 in tow, she smokes, gray at idle (unless very warm) dark to black under loads and cruising clean and clear. (Under heavy loads, 30k in tow), I was accused by Dumpster of burning coal, not fuel.
Still, not sure if this is a fair comparison on the appearance of the piston tops. This is an LDS-1A with the proper ONE hole injectors. It gets run at 2300 to 2350 on the road, runs 95% minimum DF-2, has plenty of power, will run to the governor with 26,000 in the bed or 30,000 in tow, she smokes, gray at idle (unless very warm) dark to black under loads and cruising clean and clear. (Under heavy loads, 30k in tow), I was accused by Dumpster of burning coal, not fuel.
- 6,426
- 4,985
- 113
- Location
- Ft. Lauderdale, Florida
It is a very special "hole". Lots of engineering.
Originally Posted by Woodsplinter 
For us non- mechanics, what's the purpose of the hole on top of the piston?
For us non- mechanics, what's the purpose of the hole on top of the piston?
gimpyrobb
dumpsterlandingfromorbit!
- 27,786
- 758
- 113
- Location
- Cincy Ohio
Frank, in that technical article I posted, if you had just scanned the pics, you would have seen it!
With the 2 hole injectors, there is a "main fuel ray" and a "fuel ignition ray". Most of the fuel is sprayed down into the bowl to assist in the "swirl" created by the piston's "swirl chamber". That helps to get a good mix of air/fuel and even combustion, from what I could understand.
I am not technical by any means, and often refer to motor parts as thing-a-mabobs!
With the 2 hole injectors, there is a "main fuel ray" and a "fuel ignition ray". Most of the fuel is sprayed down into the bowl to assist in the "swirl" created by the piston's "swirl chamber". That helps to get a good mix of air/fuel and even combustion, from what I could understand.
I am not technical by any means, and often refer to motor parts as thing-a-mabobs!