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  #31  
Old 04-15-2008, 03:59 PM
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Some states now have "The 5 minute rule". My state does and local cops are being trained to look out for it. Hefty fine if your caught.
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  #32  
Old 04-15-2008, 04:21 PM
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Marshall Booth used to lecture us to start it, note when the oil pressure reached three bar, then drive off hammering hard and unrelentingly. No earthly reason to let an IDI diesel idle like that. If he were still amongst the living he'd give a stern all-CAPS rebuke to such behavior
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  #33  
Old 04-15-2008, 04:22 PM
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WOW lol, its been what, eight hours since i posted this? Now its not like i put ten gallons of gasoline in there with two gallons of diesel, i thinned the gasoline out with five gallons of diesel. 5:1 ratio. the gasoline will clear out the soot and crap in the combustion chamber and fuel system, as long as the IP is lubricated it doesnt care what you put into it. Valves are fine, didnt get it hot enough to hurt anything. Seems to be running fine to me, This morning it started up as usual with the flick of a key. Im going to call it carbon deposits in the exhaust burning up. Lol, i didnt just "let it idle" i started it, expecting to come back out in about ten minutes (just getting off of work) then my foreman asked me to do something before i left. im just experimenting? if i can mix gasoline with diesel, i could have a real cost savings. its allmost a dollar diffrence in diesel and gasoline where i live. Not only that but maybie a power increase as well? Well im not going to do the gasoline mix again, because it knocks abit more at idle and ide rather not have the ring seats beaten to death. Fun though, you actually got a little more performance at high rpms. and less soot.
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Last edited by Cervan; 04-15-2008 at 04:29 PM.
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  #34  
Old 04-15-2008, 05:20 PM
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Gasoline does many bad things to diesel engines. If you want to do cleaning, use a proper diesel fuel additive...not gas. Octane in gas actually inhibits the cetane in diesel, causing reduced efficiency and burn. What you want is to INcrease cetane...so use an additive.
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  #35  
Old 04-15-2008, 05:38 PM
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Quote:
Originally Posted by Cervan View Post
Now its not like i put ten gallons of gasoline in there with two gallons of diesel, i thinned the gasoline out with five gallons of diesel. 5:1 ratio.

The tank in a 240D is what, 17 gal? So you had 12 (say 10) gal of gas and 5 gal of diesel?
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  #36  
Old 04-15-2008, 05:44 PM
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I agree with soot or carbon burning from the slightly elevated temperatures generated with gas in the mix. You are allowed to add a certain ratio of gas to the diesel as a fuel thinner in cold weather. I thought it was 20%. May not be the best choice but it is in the owners manuals of volkswagons at least.
Now that you have been raked over the coals so to speak. I thought I might chime in. Main thing is to watch for that tree at the bottom of your driveway. I cannot remember if it survived or not after it jumped out into your path. Seems hitting trees is just more socially aceptable behaviour. I hope I am right as I thought it was you. I sometimes make misteaks though.
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  #37  
Old 04-15-2008, 08:18 PM
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I am certain that the manuals that recommend gasoline as a mix in diesel fuel are only recommending it when the fuel is at or near gel temps...like 20bleow zero or something... to thin the fuel enough to drive... not for normal driving...
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  #38  
Old 04-15-2008, 08:31 PM
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Quote:
Originally Posted by Knightrider966 View Post
Your burning up your engine and pushing it to hard. This 240D will have ashort life span if you don't knock this off! It might be too late already. Sparks coming out the tailpipe is hot metal fragments finding their way out of your motor.

If you really want to destroy it and put it into it's grave, keep driving it this way!
Sounds like Carbon blowing out the exhaust... YMMV
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  #39  
Old 04-15-2008, 09:07 PM
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Quote:
Originally Posted by Kpmurphy View Post
Ok how about used oil, will it burn easer/better?
If someone wonted to add a quart to a full tank of diesel to lube things up some.
Or would that bring your mpg down adding used oil to diesel fuel.
Just wondering
Not talking about synthetic oil.
Well-filtered used oil will work (as in, down to 0.5 micron filtered), or 2-stroke oil.

But there really isn't any reason to use motor oil at all. But if you feel the need to "lube things up" then a quart of oil (in a full tank) won't hurt anything.
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  #40  
Old 04-15-2008, 09:49 PM
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id imagine used motor oil has metal and stuff in it that would get deposited in the engine. Things you cant really filter out.
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  #41  
Old 04-15-2008, 10:01 PM
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Wow gas in a diesel, I'm going to grab some pop corn and a beer and sit back and wait for it to self destruct.

Its official you cannot say anything against the WVO guys anymore, your just as bad!
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  #42  
Old 04-15-2008, 10:33 PM
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Quote:
Originally Posted by vstech View Post
I am certain that the manuals that recommend gasoline as a mix in diesel fuel are only recommending it when the fuel is at or near gel temps...like 20bleow zero or something... to thin the fuel enough to drive... not for normal driving...
The manuals after the mid 80's (84 I think it was) say to use kerosene instead of g@soline.
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  #43  
Old 04-15-2008, 11:04 PM
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1. Adding gasoline in the older benz diesels was approved in cold weather when no winter blend was available. I wouldn't recommend it in warm weather.
2. Adding motor oil if its clean would be ok.
3. Hitting the rev limiter every shift is not a terrible thing but its useless as it really does not improve the acceleration over shifting at about 80% of the max rpm.
4. Revviing it in neutral is silly but not horrible. I would not do it.
5. I don't know what is causing the sparks but they don't seem like a good thing.
6. Diesels imho do not need anything done to blow out the carbon if they get driven on the highway on a regular basis and are in good running condition.
7. Cervan is certainly likable but has some unusual ideas.

Tom W
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  #44  
Old 04-16-2008, 06:07 AM
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thankyou walgamuth. Im going to guess im kind of socially diverse? lol. Hattersguy lol, get your beer and popcorn but that engine isnt going anywhere, and i can prove it.

http://s8.photobucket.com/albums/a2/Cervan/?action=view&current=Video009.flv

BTW does anybody know the R/S ratio in these engines? I would immagine with such high RPM's they would be under square. hmm... maybie i should lighten the flywheel abit.. Would only work if the car lost some beef as well, or else i would have a harder time getting it off the line.
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac?

As long as they would add one additional commandment for you to keep thy religion to thyself.
George Carlin (Wonder where he is now..)

1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won.

pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt.

Last edited by Cervan; 04-16-2008 at 06:30 AM.
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  #45  
Old 04-16-2008, 07:11 AM
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the 240 has 91 bore / 92 stroke.

lightening the flywheel won't help your economy much. It may make it trickier to take off but the main purpose IMHO of a heavy flywheel is to smoothen the vibrations.

Tom W
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..I also have a 427 Cobra replica with an aluminum chassis.
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