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#16
03-20-2005, 01:35 PM
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Read this article on the Italian Tuneup by Marshall Booth. It only works on a good, sound engine from what he says.
http://engine.articles.mbz.org/diesel/italian/ -Joe
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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate Sooner or later every car falls apart, ours does it later! -German Narrator in a MB Promotion Film about the then brand new W123. 
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#17
03-20-2005, 03:01 PM
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Hello,
I did the Italian Tune-Up and once burned two pre-chambers that way. The ends of the tips burnt off and the pintle ball was missing. I would take out the injectors and look in the prechanber with a flashlight. Don't forget to take out the washer so you can see. Good luck, Adam Bush
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#18
03-20-2005, 03:11 PM
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LOL!
I wonder if you can make someone never at a stoplight with a high reving diesel... That would be awsome! Black smoke to smog there view and clog their lungs... The omnious loud tapping sound of the diesel... I would be scared..... I have always wondered.... How long does the average Ferrari last and why do they need tuneups so often?
__________________
2006 BMW M5 "Heidi" @ 109,000 miles 2005 MBZ C55 AMG "Lorelai" @ 165,000 miles 1991 MBZ 300E "Benzachino II" @ 165,000 miles 1990 MBZ 500SL "Shoshanna" @ 118,000 miles (On the hunt for a good used M103 engine as of 6/10/23, PM me if you have one to sell!)
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#19
03-20-2005, 03:28 PM
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Quote:
__________________
One more Radar Lover gone... 1982 VW Caddy diesel 406K 1.9L AAZ 1994 E320 195K
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#20
03-20-2005, 03:29 PM
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Quote:
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#21
03-20-2005, 03:39 PM
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Quote:
__________________
One more Radar Lover gone... 1982 VW Caddy diesel 406K 1.9L AAZ 1994 E320 195K
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#22
03-20-2005, 03:41 PM
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Marshall may be an authority on MB diesels, and I dont doubt his knowledge.
He mentions high heat ranges. I wonder if he was including, and or, considering, the 603 with #14 head? My engine hardly smokes, my idle is smooth, my fuel economy is 30+ mpg, and I'm running 0 to 60 in 12 seconds....all are good to great performance for the 603..Am I wrong about 3500 rpm Italian tune-ups, maybe, but I don't think so! It may be OK to red-line, but I'll still stick to my ways, for now! 
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#23
03-20-2005, 04:34 PM
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Don't look real close at a Lambourghini Countach.......particularly from the 80's...........I always wanted one of those....till I worked on one.....cured me of that......perminantly
__________________
Proud owner of .... 1971 280SE W108 1979 300SD W116 1983 300D W123 1975 Ironhead Sportster chopper 1987 GMC 3/4 ton 4X4 Diesel 1989 Honda Civic (Heavily modified) --------------------- Section 609 MVAC Certified --------------------- "He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche
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#24
03-20-2005, 05:33 PM
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Yeah.. I've found all the performance cars I want with VW, BMW and Porsche..
__________________
One more Radar Lover gone... 1982 VW Caddy diesel 406K 1.9L AAZ 1994 E320 195K
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#25
03-20-2005, 06:00 PM
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Quote:
I find that after an aggressive run I'll come to a stop and it'll shake more than usual at idle. A couple of stoplights later it's back to normal. Could be a problem with the EDS. One in 50 times I'll let off the pedal and the idle will hang at 900 rpm. A quick blip and it's back down to 525 or so where I set it. These are gauge readings. I have no idea what the actual rpms are. As for clearing the pipes, I'll get on a lonely road and floor it in third until the exhaust clears. It clears before the IP governor kicks in. I don't know about 5000 rpm. It gets to 4800-4900 and won't do no more (in my Chuck Berry accent). I've held that for ~10 miles on a number of occassions. The pointer will be over or just beyond the third dot. Temp settles around 97*C by the gauge with the AC compressor off. Without encapsulation panels the cabin is the perfect place to record sound effects for a remake of Memphis Belle. The upside is that it smokes less for a while after such a run. The downside is that I don't seem to be any closer to having to ditch this SDL for another ride  On the other hand there's the Caravan with a 6000 rpm redline on the tach. It won't rev beyond 5000 rpm and won't make power beyond 4000 rpm. Sixto 95 S420 87 300SDL
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#26
03-20-2005, 06:53 PM
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I have driven my 210 at 80-95 mph for at least 100 hours over its 110k mile life, with no ill effect. (3-3.6k rpm). It also doesn't mind revs up to 5k rpm. Never had any gunk in the intake. (I use synthetic) Maybe I am just lucky
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#27
03-20-2005, 07:24 PM
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My '85 300D was in the shop for three months (don't ask); shortly after I got it back, I took a 200-mile trip into the Carolinas, running it at 70-80 the whole way. I noticed for the first several miles of high-speed highway driving that the exhaust would occasionally fart out a puff of black smoke. After awhile, this ceased, and the car has been running beautifully since -- new engine mounts did an unbelievable amount of good, as an aside, and you wouldn't believe what the old ones look like, they're probably worth posting pics. I did run it up to 4000 RPM on the highway coming back just to see how it would do -- did dandy -- but there was certainly no need for dropping it into third or anything else radical.
In any case, it seems to me that 75-80 is plenty fast enough to 'clean it out' with no need to redline or go crazy with the revving.
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#28
03-20-2005, 07:29 PM
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I don't understand your question "what made you do it?" Do what? 
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#29
03-20-2005, 07:43 PM
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I dunno guys. My old 300D just pulled so damn good to redline, it was hard not to. No lack of power, it just pulled very linear and clean. ~shrug~ I figured the fact that there is no red on the tach was intentional. Hell highway speeds are near what you guys are saying you don't want to go past RPM wise. I just never gave it any thought.
My VW's were the same way, hell you know how you set the RPM limit on a VW diesel? Redline it in park from under the hood with a tach on it and set the throttle stop. Not to mention you need the RPM to drive the darn things.  You have to remember, these cars were built with the average joe(anne) in mind, there slowish compared to gassers, so there going to be beat on and run hard. I'm sure it was considered in the design. Least for the 617, I dunno what they were doing with the later six bangers there for awhile.
__________________
One more Radar Lover gone... 1982 VW Caddy diesel 406K 1.9L AAZ 1994 E320 195K
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#30
03-20-2005, 08:05 PM
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And to the point of the thread, did the Italian tune-up in fact backfire or did BusyBenz not see it through completion? Sixto 95 S420 87 300SDL
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