Italian Tune up - Page 3 - PeachParts Mercedes-Benz Forum

83-240D · #31 01-17-2005, 07:54 PM

Quote:

Originally Posted by peterhardie

I've heard that load is better than just wide open throttle. Find a long steep hill, and floor it going up the entire way.

For us older oilburners, going uphill makes it easier to avoid a speeding ticket. Can't speak for the 1998.

on i-57 south of marion ill. started up it at 72 and topped the hill at 57. foot to the floor shifted to s and the engine only got louder.

Cateaux · #32 01-17-2005, 10:36 PM

It'll take a tank of fuel for me to get to the nearest hill, so I have to just take off from a stop like a lunatic. I've found that the perfect time to perform an Italian tuneup is when being tailgated. I let off the accelerator and slow down a bit to give me some room, then STOMP! I let out a smokescreen that would make James Bond jealous! I have to be careful that I don't do this too often, though, or else my ability to produce smoke disappears

. Yeah, I know that means the Italian tuneup is working, but selectively smoking obnoxious motorists is more fun than a drunken monkey

.

MBDFahrer · #33 01-18-2005, 03:40 AM

I would give my 87 300D a ITU, but afraid of the head... since moderate thottle will already get it passed 100, the cooling system really needs to be reworked (copper radiator, brittle hoses, yup... its as if i WANT my head to crack). Until I can afford all that, radiator in particular, just gonna granny it at under 2k RPM.

goldenbear · #34 01-18-2005, 09:46 AM

Quote:

Originally Posted by jmak124

I would give my 87 300D a ITU, but afraid of the head... since moderate thottle will already get it passed 100, the cooling system really needs to be reworked (copper radiator, brittle hoses, yup... its as if i WANT my head to crack). Until I can afford all that, radiator in particular, just gonna granny it at under 2k RPM.

At the risk of stating the obvious, I recommend you have your cooling system addressed IMMEDIATELY! Are you sure your radiator needs replacing? Deal with the little things first, like the temp switches and hoses. I'm no expert here, so here's a quote from someone who is:

Quote:

Originally Posted by gsxr

[Could be a] bad radiator. and the fan clutch is suspect too... also need to verify that the electric fan is coming on at 105C, or just replace the switch as preventive maintenance (every original switch I've seen has been bad - those aren't good odds.) A 603 shouldn't get over 105C idling in summer, even in 110F ambients.

Good luck. That baby deserves to be DRIVEN!

Russmeister · #35 01-18-2005, 11:07 PM

According to a good friend of mine, motorists in Italy drive fast. As in hold each gear till redline. Do not give a car a "Hawaii Tune-up". You will irritate everyone behind you by taking 30 seconds to reach 30 miles per hour. I kid you not. That is how fast people drive here.

redbaronph123 · #36 01-19-2005, 12:37 AM

i just had my car spend almost a week in the shop without it being started.. when i got the car back yesterday... man.. there were a lot of smoke coming out when i press on the accelerator... and its not gray smoke.. its more like dark brown... babied it for awhile since i was in a city that penalizes smoke belchers.. then when i got to a wide open stretch of private road (really wide.. it around 6 lanes abreast) ... i stomped on the pedal.. wow!.. all the cars behind me vanished!.. didnt let off for a good 2 kilometers..i just mashed the pedal.. poor motorists behind me...after that.. went into our compound.. that night.. i can see the headlights of the cars behind me even if i was accelerating.. thank god!....

diesels really dont like being garaged.. ehehhe

H-townbenzoboy · #37 01-22-2005, 09:43 PM

Here's my Italian Tuneup story for today. I was out on the NW side of town today (It's rare that I ever get out there), and I took the opportunity to get a can of diesel purge from Champion Import (Thanks Diesel4Me "Bill"

), and I thought about using it on my 300D later in the day. When I was heading home on the Sam Houston tollway, I came to a complete stop at the toll booth, and after I got my change, I put my foot all the way down on the accelerator and didn't let off until about 72-73 mph. I looked in my rear view mirror, and I didn't see and smokescreen effects, just a small haze. I guess I've been putting my foot down on it so much and I guess all that Redline and that whole bottle of Diesel Kleen cleared all that smoke out. So, I guess I'll give the Diesel Purge to the 300SD, it's smoking because of my dad's different driving style. So, I guess I'll run a little of that, and give it a good cruise.
-Joe

stayalert · #38 02-04-2005, 11:27 AM

On wednesday I was driving home my first MB. My wife was following....clear sunny day no traffic ~60MPH on rte.128....We come to a slight incline....should I do it? what will happen? HELL YES How can I NOT do it. I checked the operation of the kickdown switch with firm prompt application of pressure of my right foot......eyeys dart to rearview....Holy Soot show! I could barely see my wife....When we got home my wife was like (What the he double hockey sticks happend?????....Um...just checking something....

#39 02-06-2005, 02:53 AM

Quote:

Originally Posted by stayalert

Holy Soot show! I could barely see my wife....When we got home my wife was like (What the he double hockey sticks happend?????....Um...just checking something....

Hehehe.

I always belch out the smoke if I have tailgating issues or a driver I think needs a wake-me-up behind me.
Then they prompty usually attempt to put their headlights in my drivers mirror. Hm I guess I'll have to turn the shade back on

My kickdown doesn't work...I need to adjust the linkage so the pedal will make it down there

H-townbenzoboy · #40 02-06-2005, 04:34 PM

For those of you who think Houston is too flat to do Italian-Tuneups, I found a few places where they can be done, in an almost "hilly" environment. One is the entrance ramp to the Eastex Freeway (U.S 59 North) in downtown Houston, McKee St? I'm not sure. It's a pretty nice grade. There's another one on the Eastex too, if you're going northbound, after you pass under I-610, the freeway depresses under Kelly Rd., then, it comes out of the trench to pass over Bennington Rd. and some railroad tracks. The approach is a nice, long steep grade all the way to the top of the overpass. I have not had the oppurtunity to try this one out yet, but the I-610 bridge over the Ship Channel is pretty steep. Going south from I-10, you come out of a depressed section of 610, and climb from about 20-30 feet below the ground to about 150 ft above ground at the highest point of the highway.
-Joe

whunter · #41 03-27-2005, 11:35 PM

Quote:

Originally Posted by H-townbenzoboy

For those of you who think Houston is too flat to do Italian-Tuneups, I found a few places where they can be done, in an almost "hilly" environment.
The I-610 bridge over the Ship Channel is pretty steep. Going south from I-10, you come out of a depressed section of 610, and climb from about 20-30 feet below the ground to about 150 ft above ground at the highest point of the highway.
-Joe

Memory of that bridge.
1972 Valiant, with a 170 CID Slant Six , hit the bottom of bridge at 65 MPH, by the top it was down to 25 MPH or less.

That bridge will give any diesel a good cleaning.

boneheaddoctor · #42 03-28-2005, 08:11 AM

I can't really flog mine...no place I can get the speed up to anything that matters........

I was going UP a 10 mile 7% grade at 90-95 mph and was barely toping 3,500 rpm....and I certainly don't want to get caught finding out what its top end is....(my W123) it definately has taller gears than my W116 has...

Will_w202 · #43 03-28-2005, 09:55 AM

Go to Walmart, or most auto parts stores, and you will find Diesel Kleen by Power Service in the grey bottle. Diesel Fuel Supplement, white bottle, is ok, but the grey bottle is like shock therapy for your diesel fuel system. Pour in a whole 32 oz bottle in a tank, drive it normally for maybe half a tank, take it out and run it like hell, but just be sure you have an extra fuel filter. Might work TOO well.

OTOH, you could just use 1-5 gallons of B100 Biodiesel. I had a friend who ran B100 in a TDI for the first time, at 60k. Fuel filter was clogged with dis-lodged gunk after 20 miles. Best detergent ever.

boneheaddoctor · #44 03-28-2005, 09:58 AM

Quote:

Originally Posted by Will_w202

Go to Walmart, or most auto parts stores, and you will find Diesel Kleen by Power Service in the grey bottle. Diesel Fuel Supplement, white bottle, is ok, but the grey bottle is like shock therapy for your diesel fuel system. Pour in a whole 32 oz bottle in a tank, drive it normally for maybe half a tank, take it out and run it like hell, but just be sure you have an extra fuel filter. Might work TOO well.

OTOH, you could just use 1-5 gallons of B100 Biodiesel. I had a friend who ran B100 in a TDI for the first time, at 60k. Fuel filter was clogged with dis-lodged gunk after 20 miles. Best detergent ever.

I've been through 5 full tanks of B20......and will be through a whole lot more in the future.

May pick up a bottle of the DIESEL kLEEN...Advance auto carries it.

aklim · #45 03-28-2005, 11:51 AM

I never did the ITU in my gas cars nor on my diesel. Every ramp I take that is clear, I goose it to the max. Why wait for a few days or weeks? I just keep it clean daily.