[Benzoid123]

So here I am with my older brother Robert driving back from Tucson, Arizona in my 84 300D-Turbo. I mention how the nearly 700 miles I've driven in just over 24 hours should've really knocked off at lot of carbon deposits. He tells me about a trick he learned from a mechanic. I don't know if this really works or is safe but interesting all the less...

Run your car and use a squirt bottle to spray water into your intake. The car will run like crap while you do it but word is that it makes steam in your combustion which really strips off the carbon asap.

Any thoughts?

 

[bboybaroo]

scary

 

[H-TownBenzoboy]

Just keep on driving it on the highway, that's the tried and true method of carbon deposit loosening. Get in as many Italian tuneups as you can.

 

[MBeige]

The idea of the Italian tune up is to get the exhaust quite hot, hot enough to burn the carbon deposits while running the car properly (no water in the intake, no other chemicals involved, etc). That way you'll be assured of a safe "tune up" while at the same time getting rid of the carbon deposits.

Only problem with your set up is how to rig a system to squirt water into the intake. And what effects it would have on the engine! It's like inhaling underwater!

 

[w108 downunder]

You could also try a product like Redex: http://www.honeywell.com.au/business/holts/redex/dt.html

I have used the petrol engine product with very good results. There is a few different ways you can use it, i just put it into the petrol tank.

I also heard that putting some ATF - (Auto Transmission Fluid) into the petrol tank will work very well at loosening up carbon deposits but i have not tried this.

 

[diametricalbenz]

From what I remember from chem water isn't compressible like oil and when you inject that into a cylinder you're theoretically going to create excessively high pressure in the head and possibly blow the headgasket. Plus there could be a possibility of getting water into your engine oil??

The engine is designed to run oil so dump in B100 and a lot of Lubro Moly Hi-Test and drive it with the pedal firmly against the carpet.

 

[Benzoid123]

I think the Itallian tune-up is far more fun anyway! The more I drive this thing the better it runs, so as is I am satisfied. Oh well, I was just curious what you all thought. I figured the the intake does eat some moisture in heavy rain so I wondered if this would be harmless or not. Let's not find out the hard way!

 

[diametricalbenz]

The benz engineers were/are smart people and they never suggested such a thing. That's why oil is used in the hydropneumatic suspensions as opposed to water or another solvent.

I wouldn't waste a perfectly good car on water. There are enough flood cars out there. I saw a 450SL at my mechanic's shop which had water sitting in it, they cranked the motor and boom head gasket, and heads were TOAST. They made very very good vintage paperweights!

As for moisture yes the car will eat moist air but you don't want ANY water in it. because the water again is not compressible and it doesn't combust with the fuel so it's no good for an engine.

 

[MBeige]

Plus, the air filter absorbs the water that gets into the intake. There is also a small hole on the bottom of the air intake should the water be substantial.

 

[Nutz 4 Benz]

What,you guys never heard of water injection systems??

 

[washerman]

i think that this would bend a valve scary if you ask me

 

[blitzgritz]

OMG....are you kidding......even mentioning such a load of Bull**** gives our forum a bad name

 

[diametricalbenz]

What,you guys never heard of water injection systems??

Actually I have read about some heavy shipping applications where they tested water injection into the cylinders to reduce some of the emissions and particulate matter. I never saw any data and haven't heard about it since so I can't imagine it being an odd yet groundbreaking technology at this point in time.

 

[Nutz 4 Benz]

Actually I have read about some heavy shipping applications where they tested water injection into the cylinders to reduce some of the emissions and particulate matter. I never saw any data and haven't heard about it since so I can't imagine it being an odd yet groundbreaking technology at this point in time.

Heres a site with some FAQ's answered.

http://water.lovehorsepower.com/FAQ.htm

 

[Gregs300CD]

If you really wanted to spray something into your intake, you could take off the "U" tube to the turbo and spray some of that sea foam stuff into it while it's running. You could get a runaway if you spray too much too fast, though.

And if you are REALLY worried about crud in your intake, you could go through the effort of taking it off and scraping (or burning and scraping) it out. (After taking care of your EGR.)

But if you want WATER in your intake, you might as well dump a couple of cups into your tank. Not recommended, though.
The engine might not rust from the inside out, but water in the fuel is known to cause pitting and scarring on your engine internals.

 

[Benzoid123]

OMG....are you kidding......even mentioning such a load of Bull**** gives our forum a bad name

Nice. It's called creating an interesting topic even if it's a bad idea or not.

 

[Gregs300CD]

Nice. It's called creating an interesting topic even if it's a bad idea or not.

You ever try removing the front part of your skull and attempt echo-location like a dolphin?

 

[boneheaddoctor]

The benz engineers were/are smart people and they never suggested such a thing. That's why oil is used in the hydropneumatic suspensions as opposed to water or another solvent.

I wouldn't waste a perfectly good car on water. There are enough flood cars out there. I saw a 450SL at my mechanic's shop which had water sitting in it, they cranked the motor and boom head gasket, and heads were TOAST. They made very very good vintage paperweights!

As for moisture yes the car will eat moist air but you don't want ANY water in it. because the water again is not compressible and it doesn't combust with the fuel so it's no good for an engine.

MIST of water.....you don't pour a bucket bown the intake...I've done it with gassers....have not done it with a diesel....you don't want to spray upstream of a spooled up turbo either..the water droplets can erode the compressor turbine.

 

[Stevenpfaff]

Well, this is a tried and true method of cleaning the valves. Mechanics like myself have been doing it for as long as internal combustion engines have been around. It will not damage any engine in any way. I agree with the last statement though too, you wouldn't want to put water into your turbocharger. If you wanted to try it on a turbodiesel, you could remove the EGR valve and spray the water into that port. I agree, it sounds scary; the first time I saw it done I was a little nervous, but it works great and you don't have to worry about a speeding ticket for going 100MPH trying to clean out your engine. Try telling a cop your doing an Italian tune-up, they'll write you a ticket and tell you to take your car to a mechanic. The mechanic will most likely charge you two hours labor to pour a cup of water into your intake.

 

[diametricalbenz]

I assumed Benzoid123 meant misted water. My example was just to show what excessive water can do.....or for that matter any fluid in excess.