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  #1  
Old 07-11-2007, 04:39 PM
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Anybody actually gutted a WVO run engine?

Has anyone actually gutted out (Cylinders, rings, etc) an engine run on WVO. I've always been curious what things look like and if any different than on straight #2 Diesel.

I noticed I pulled a glow plug the other day and it was fuzzy. I'd run about 2 hours of WVO through the engine (unheated other than a hot day and hot engine compartment. The injectors, and lines were so hot you couldn't touch them for long).

I could be that it was just an old and dirty glow plug. But it literally was fuzzy (strings of black junk on them).






on a side note... my WVO containers after they dry out are sticky. I've never noticed a sticky container of diesel after it had dried out.
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Tom's Imports of Columbia Missouri Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's!
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  #2  
Old 07-11-2007, 04:59 PM
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Also, just FMI I put the hairy looking glow plug back in (cleaned of course) and am running the car a few more hours to see what it looks like again. Could just have been there before. As far as I know the engine hasn't seen a drop of WVO in it's 300k miles until this week.
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-7.3 Powerstroke Diesel 15P Van 500k+ miles
-E320 '95 200k

Sold
-E320 Wagon 1994 155k
-300d Turbo '87 187k miles
-E320 1994 200k
-300d Turbo '84 245k (sold to Dan62)
-300d Turbo '84 180k
-300sd '80 300k
-190d '89 Non Turbo 2.5 5cyl 240k
Tom's Imports of Columbia Missouri Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's!
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  #3  
Old 07-11-2007, 06:52 PM
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Usually,

The engines are not taken apart prior to running wvo so it could be hard to tell where/when any damage occured.
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  #4  
Old 07-11-2007, 06:55 PM
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True ... oh so true.

But some things I would guess WVO could do are sticky gummy piston rings and other parts. I wouldn't expect diesel to do a similar thing.
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-7.3 Powerstroke Diesel 15P Van 500k+ miles
-E320 '95 200k

Sold
-E320 Wagon 1994 155k
-300d Turbo '87 187k miles
-E320 1994 200k
-300d Turbo '84 245k (sold to Dan62)
-300d Turbo '84 180k
-300sd '80 300k
-190d '89 Non Turbo 2.5 5cyl 240k
Tom's Imports of Columbia Missouri Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's!
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  #5  
Old 07-11-2007, 10:51 PM
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Barry seems to think that stuck rings are a good possibility.

Tom W
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  #6  
Old 07-11-2007, 10:57 PM
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thought about takin mine apart prior to install to compare difference. then I got intake off and looked at valves and noticed at least 1/8" black soot on valves, all thru intake. Figure I'll know if its detrimental by engine performance, oil consumption. So far - 8k miles - so good.

Heated 2 tank Frybrid, properly dewatered, filtered oil, ofcourse.
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  #7  
Old 07-11-2007, 11:08 PM
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Stuck rings is a possibility with unheated WVO. And if they get stuck you start getting oil in the combustion chamber and worse WVO in your oil. If you get enough veggie in your oil it will polymerize. Apparently there is a threshold for the veggie. A little bit gets added with no ill affects but at some point your oil will suddenly polymerize.
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  #8  
Old 07-15-2007, 06:15 PM
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Should be pulling my WVO glowplug again on Monday. Not that that test would be definitive in any way but I'm curious where the fuzz on the GP came from earlier.

Perhaps a compression test before and after several miles would be more definitive???
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-7.3 Powerstroke Diesel 15P Van 500k+ miles
-E320 '95 200k

Sold
-E320 Wagon 1994 155k
-300d Turbo '87 187k miles
-E320 1994 200k
-300d Turbo '84 245k (sold to Dan62)
-300d Turbo '84 180k
-300sd '80 300k
-190d '89 Non Turbo 2.5 5cyl 240k
Tom's Imports of Columbia Missouri Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's!
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  #9  
Old 07-15-2007, 08:29 PM
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Quote:
Originally Posted by a2t View Post
thought about takin mine apart prior to install to compare difference. then I got intake off and looked at valves and noticed at least 1/8" black soot on valves, all thru intake. Figure I'll know if its detrimental by engine performance, oil consumption. So far - 8k miles - so good.

Heated 2 tank Frybrid, properly dewatered, filtered oil, ofcourse.
That black soot is from the EGR recycling carbon and other byproducts of combustion. It cools from the incoming air and turns to that nasty sludge. I burnt it out with a torch out of my intake. After Awhile I wanted to cool it with comp. air. Doing so made the fire go out, and the sludge to start glowing and flake off. So I kept the air going and chunks of sparks came flying out for about 5 minutes!!! I torched it a couple times after that followed byu the air untill it was clean!!
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  #10  
Old 07-15-2007, 09:09 PM
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I get some peace of mind running both biodiesel and VO
I figure the alcohol in the biodiesel will cut through any "stickyness" and generally keep everything cleaned up
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  #11  
Old 07-17-2007, 10:41 AM
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Just for arguments sake. If running unheated veg oil cokes the rings somewhat I do not see it as the end of the engine. Or having to tear the engine down.
That vegatable coked residue if there seems to be correctable by a good soaking with marvel mystery oil. It is certainly not totally certain but after a soak in general the compression numbers rise substantially usually. The marvel mystery oil seems to slowly break down the carbonized vegatable oil that has accumulated in the ring grooves that made the rings sticky. . Or perhaps there is not enough heat to actually really carbonise it so it just has become a very sticky type glue instead.
I believe a lady also sat an injector in a dish of marvel oil and saw the carbon dissolving off the nozzle end over sevral days so something is happening with the snake oil.
If nothing else it is worth a try in my opinion. A cheap and manageble approach with really nothing to loose even if it did not work. Although once you have lost so much sealing function and the vegatable oil is showing up in the base oil in quantity it is beyond my knowledge. Although I would not think the engine runnable at all with that much sealing ability gone. Yet that is exactly what some threads may indicate has happened.
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  #12  
Old 07-17-2007, 12:02 PM
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there's a debate in another thread about the 'OKness' of running WVO in our cars (is it OK to run car on WMO thread). seems that a tank of the BD with its solvent-like properties can clean up any goo that accumulates inside the motor? hard to find much information, since this is a relatively new endeavor. aren't fleets of trucks running on this stuff (WVO)? or is that in fact only BD they're running on?
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  #13  
Old 07-17-2007, 12:03 PM
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Dan, the bio should be "washed" of all alcohol and the FFA's that make VO sticky.
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  #14  
Old 07-17-2007, 12:36 PM
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Quote:
Dan, the bio should be "washed" of all alcohol and the FFA's that make VO sticky.

i think he just meant the 'solvent' nature of the BD, instead of actual alcohol.


???
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  #15  
Old 07-20-2007, 06:49 PM
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I pulled the glow plug after about 4 hours of running. Very very fuzzy and gummy again. On another note. I ran it heated in my other car 87 300d and I just changed those GP's today. They looked fairly normal to me.
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-7.3 Powerstroke Diesel 15P Van 500k+ miles
-E320 '95 200k

Sold
-E320 Wagon 1994 155k
-300d Turbo '87 187k miles
-E320 1994 200k
-300d Turbo '84 245k (sold to Dan62)
-300d Turbo '84 180k
-300sd '80 300k
-190d '89 Non Turbo 2.5 5cyl 240k
Tom's Imports of Columbia Missouri Ruined the IP in changing leaky delivery valve O-Rings - Refused to stand behind his work. Mid-MO MB drivers-AVOID Tom's!
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