Carbon build - up its everyone’s problem.

[Blue]

Hey just thought of something here to maybe help out with cleaning the carbon out. Subaru make a pressure can with a cleaning foam in it to clean the intake manifolds on the boxer engines. This is a must to stop their manifold from building up with crap. You pull off a vacuum line. Spray half the can in, let it sit for 15 mins then start it up and rev it up while emptying the rest of the can into the manifold. You get a shit load of smoke and crap out the exhaust when its done i tell you.

I wonder how that will go with a diesel Boosted - it only takes a few drops of water to hydraulic an oiler due to the high compression, I'd hate to foam it and destroy a piston or rod or worse...

[subi_man]

I still have a few cans of Subaru "upper engine cleaner" in the shed, good thought but I'm not sure if I'm game to use it on my Triton though

[boostedbmw]

I will aske the dealership today.

[boostedbmw]

Ok i spoke to my service guy at the dealership and he knew all about the redesigned manifold that is available. As we saw in the pics the only change is the vacuum point. As for using additives or any cleaning foam or such he would not recommend anything and had no suggestions on how to prevent the problem in the first place. He said he would ask mitsubishi and get back to me but i wont hold my breath.

[ML-VR08]

Does that mean they will do the fix on our trucks boosted? I hope so...they can also have a go at fixing the rear springs lol...

[Jitsukablue]

Just had mine done as the truck is hunting for the right fuel mixture. Made it better, but not solved the problem. So BioD doesn't seem to make any difference. I didn't ask about the state of the inlet manifold, but assume it looked bad enough for the MAP sensor to be blocked and for dealers to want to replace the manifold.

Does anyone know if they replace the sensor, or is it just relocated?

[boostedbmw]

Well i just spoke to a well clued up deisel mechanic and he said its not the fuel we use but the OIL, yes thats right the oil. He reccommended using Penrite Enviro Plus 0/40 to reduce the problem, He also said its not just the triton with the problem with carbon build up but many other manufactures too.

[Blue]

Well i just spoke to a well clued up deisel mechanic and he said its not the fuel we use but the OIL, yes thats right the oil. He reccommended using Penrite Enviro Plus 0/40 to reduce the problem, He also said its not just the triton with the problem with carbon build up but many other manufactures too.

That is interesting...

I was just reading on a UK forum, guy's talking about blanking the EGR on Euro performance diesels... One bloke claims you can just unplug the EGR from the loom, effectively stopping it from opening...

Does anyone know how the Mitsu diesel will handle this or if it will have a hissy fit and shut down...???

Think I may give it a try on the short trip to the restaurant tonight - have scanguage, hopefully can clear faults if they arrise...

[Jitsukablue]

You'd have to find the EGR sensor... if you unplugged that, it may fail closed. Interesting...

What boosted seems to be saying, is it's not the Exhaust gas's fault, but the oil making it stick.

[MonsterTriton]

guys i would of taken my advise close the egr, bypass the rubber hose and you will see that this problem wont occure again.

[rick]

hey monster you might get a new line out of this " egr blanking plates"

[sam]

Some body needs to try this on a 3.2 as I know somebody who did it and the ute ran like a bag of you know what to the point it was nearly undriveable .

Took the blanking plate out and all probs dissapeared so someone else needs to give it a go imho
and give some feedback

[Blue]

Might have a look tomorrow Sam - got some 2mm ally plate here, shouldn't take long to hack a blank out...

[rick]

do it blue,and if it works post me a copy

[Blue]

do it blue,and if it works post me a copy

No worries - of course, like all accessory makers, I'll have to add $600 to the price for freight over west...

[rick]

sounds about right mate.....

[macap001]

I don't know a huge deal about them yet but would a programmable ECU like the DP Chip make any difference to the carbon build up.

From what I gather, they give a small % increase on power and fuel economy by injecting smaller amounts of fuel at more regular intervals.

So would the fact that there is less fuel to burn at more regular intervals mean that the liklihood of heavy carbon build up would be reduced?

Also could someone shed some light on the changes to air intake that the programmable ECU's might have on the carbon buildup... Iv'e just bought my Triton, but from what I'm reading, I think I'll take any extra precaution I can to avoid problems.

Cheers

[hicko]

I’ve had my EGR blanked off since I cleaned the carbon out of the manifold. 2000km since then and all is well the engine check light comes on and off at times . But now I have one of MonsterTritons “Smart Gauges “ it can read the fault . The fault is coming up as a MAP, which is manifold air pressure so that points to the sensor on the part of the manifold that has to be replaced it may be faulty. So next trip to the dealer, for the rear spring recall, I will be insisting that these parts are replaced. I’m going to wait for another 3000km and then pull the manifold apart again and see if blanking off the EGR has made any difference .

[MonsterTriton]

great, garry did u also bypass the rubber hose down to under the engine bay???

the egr will help stop producing black smoke,
but the rubber hose will complete avoide any carbon, or oil from comming down to your turbo, intercooler, the intercooler pipes, intake manifold etc.

[MonsterTriton]

[Jitsukablue]

Hicko, that rings true here. I've still got surging after the dealship changed out the manifold, so either the sensor is stuffed or it's another sensor that has a problem too.

[hicko]

MonsterTriton
The only trouble with putting the oil overflow like that is if you park on nice clean concrete drive ways and garage floors the oil can drip out of the tube and leave oil stains, and over here the authorities frown on oil leaks. I’m tossing up whether to install an oil catch can this weekend, but the other diesel Mitsy turbo 2.8lt that I own has been running the oil through the turbo for 380000kms with no troubles so I am wondering if the oil may help to lube the turbo.

[rick]

i think the turbo would get a tad hot for the odd drip to do any good

[Homer]

The turbos I've looked at have an independent oil supply line to the centre bearing/bush housing.

[rick]

thats right mate, the od drip entering from the exhaust would atomise long before being of any turbo bearing use.