Carbon build - up its everyone’s problem.

[MR T]

will the kerro or unleaded thing damage the car over a long period or is it safe

[Jitsukablue]

With old diesels, it's fair to say it is safe, but with ours, who knows. It will certainly dilute/thin your oil to some degree. My missus once put in 10 litres or LRP into our diesel in the UK (Fiat commonrail) and we filled up with diesel to dilute, it went really well If you ever make that mistake BTW, make sure you stand back when you open the filler cap, as you will get covered with petrol.

[rick]

ive put 2 ish ltrs in from new,i bet my minifold is like a well polished barbours mirror

[mad992]

hey rick do you really think putting ulp in your diesel tank will fix this horrible gunk mate

[GLX-RSilver]

So would it be a good idea to block the EGr as older diesels don't have them.
I did notice years ago that the old holden V8 with the egr use to block up the egr port in the head.
I want to fix the problem before i get high in kms as at the moment i'm not even run in with only 12,000kms after 15months of ownership.

[smeghead]

Will running a ULP mix just act as a preventative? Or, will it clean out existing gunk that is already there?

[greeny03]

Geez.... I really have been thinking about buying a new Triton... But you guys are making me feel like they are a bit of a lemon as such!! Hope thats not the case, cause I love the way they look, although I originally couldn't stand them(appearance). If buying a new Triton are most of these issues rectified??

Cheers Greeny03

[sam]

They reflash the ECU when they put the new section of manifold on and this is meant to stop/reduce the above problem in hicko's pics but I"m not so after seeing how bad it is originally only time will tell I guess

[rick]

hey rick do you really think putting ulp in your diesel tank will fix this horrible gunk mate

i dont think its a fix but it should help as the diesle over here is total crap, its amazing how smooth it makes mine run,even the rattle is less noticable

[brenze87]

dont run the ulp in your diesels. talk to any diesel injector specialist about running the "champagne" fuel mix and they will definitely tell you not to do it as unleaded fuel has no lubrication properties for the injectors or injector pump seals. something along those lines anyway.

[rick]

2 ltrs in 65-70 ltrs of this crap will make no odds

[GLX-RSilver]

Geez.... I really have been thinking about buying a new Triton... But you guys are making me feel like they are a bit of a lemon as such!! Hope thats not the case, cause I love the way they look, although I originally couldn't stand them(appearance). If buying a new Triton are most of these issues rectified??

Cheers Greeny03

Hey there Nah there isn't anything wrong with the tritons my mates have done like 80,000kms and never been to mitsubishi ever and it's never played up. He services regularly and have no problems.
I've had not problems thus far with mind just want to keep it that way.

hey if you think triton's have troubles try buying a nissan. If you get a 3.0lt wait until 180,000 and watch them expload and there goes $15,000 for a new motor.The 2.5's nissan's are even worst. It's about time the australia fuel company provide better diesel fuel to reduce this happening.

After all the triton engine design isn't new it's been around for a while now in pajero's they don't seem to have problems or do they?

[greeny03]

Thanks GLX-Rsilver, I guess you are right. They have been around for a while in the Pajero. Funny you say about the Nissan as that was my other choice. But the Triton still seems to grab my attention.

[Naff]

As bobp said - flog it and you won't have a problem.

I'm pushing 40K and so far no problems but am happy this is being discussed here!

Will wait til it gets to 45K and get the service guys to check it out.

[Blue]

As bobp said - flog it and you won't have a problem.

I'm pushing 40K and so far no problems but am happy this is being discussed here!

Will wait til it gets to 45K and get the service guys to check it out.

I don't know about flogging it but mine gets driven hard - booked in tomorrow to have power drop looked in to as it's happening multiple times a day now, mostly accelerating trough the 2k-rpm mark in 3rd gear with at least 1 drop in power on each trip to work at highway speeds...

[subi_man]

Boy thats bad! Hey does anymore know the replacement section part number and cost as i wouldn't mind just buying it and fixing the problem myself.

I have all the part numbers of the bits that were used (incl gaskets etc.) but no prices. You should not have to do this yourself though mate, especially as not may of us believe the parts alone will cure the problem!

[hicko]

Let’s just analyse what is going on here.
This may not be as bad as we may think,
With all that carbon build up in my manifold the Triton still came up with good power and torque figures on the dyno and some here even suggested that they were a bit high for a standard Triton. The butterfly set up in the manifold still work fine even with all that build up in there
With the new manifold part that was replaced on subi_man Triton and the new position of the boost controller tube which is nowhere near the carbon there should be very few problem.
In the 75000kms that it has travelled in less than 2 years, I have had very few problems with it.
It has been serviced every 15000kms by the dealer except for the last one which was done by my mechanic and he used synthetic oil.
After one of the services the dealer told me that the rear shocks where leaking and they had ordered new ones in. That’s due to the weight that is carried daily.
I had it reflashed at the 45000km service as it was down on power. They also fixed the rear spring squeak, and the steering has also been fine.
As you can see by the photo there are 8 inlet ports in the head, not bad for a 4cylinder. That means that these motors can breathe.

That’s why Monster triton can get 300hp at the rear wheels.
Also this seems to point out that it will take a lot to block it up. With the new position of the boost controller, the only part of the manifold that may have to be checked and keep clean is the top section here.

Since I cleaned the manifold the Triton goes like a rocket. The engine check light has come on and gone off a couple of times. I think this is the ECU learning and adjusting to the different air flow through the clean manifold.

I can’t really see how running unleaded on E20 or whatever would make any difference to the carbon build up because the fuel doesn’t get anywhere near the intake manifold. It’s some % of the exhaust that is recycled and goes back into the manifold so even if the motor runs cleaner the exhaust still goes through the intake manifold.
Also unleaded fuel ignites a lot lower temp and earlier than diesel fuel, so that means that the unleaded may be burning or igniting well before TBC good or bad I’m not sure.
Hicko

[golden]

subi_man,
Hi Subi
Can you post the part numbers?
Cheers

[GLX-RSilver]

Just another thought as the cat is just pass the dump pipe of the turbo which in turn creates more back pressure, forcing more exhaust gases into the EGR pipe. Then moving the cat further from the turbo and installing a high flow exhaust making it breath better should reduce the amount of carbon in the inlet manifold.
After my trip away tomottow i'm thinking of either blocking the egr pipe or reducing the size hole in the gasket.

[subi_man]

Ok, the parts used are;

1505A464 - Pipe, air inlet
2036A291 - Vacuum hose & pipe
MD026761 - cap rubber, 2.9mm
MN158295 - gasket-throttle body (others)
ME204371 - gasket-throttle body
1582A039 - gasket-EGR valve
MR161679 - gasket-exh/manifold EGR pipe

Cheers

[Blue]

Just got home from Mitsu, as expected it's a blocked boost sensor... They are ordering a new manifold and will reflash the ECU at the same time which supposedly reduces the frequency at which the EGR operates thus reducing the amount of carbon getting into the inlet - and apparently I'll be the 7th one changed out at Chaddy...

Talking to the service foreman, gave him a hypothetical scenario regarding the EGR becoming completely blocked, he baulked straight away and I said I know he can't advise me to do anything which would technically be illegal but, say it mysteriously got blocked completely how would that effect the performance of the engine...??? He straight out said there would be no detrimental effects short or long term but again reiterated the fact that it was technically illegal...

One thing he did mention was that he was very surprised to see a Triton with so few km (27,000) presenting with this problem, makes me wonder if the reflash supposedly done at the 1,500km free service ever happened...

[fireball]

so let me get this straight.. the symptoms of the carbon buildup.. include engine power loss at 2000rpm, engine stuttering on the highway just off the throttle around 90kph mark ??
and the solution is to replace the above parts listed+reflash

is that a correct summary ?

[Greedy]

is that a correct summary ?

I think the jury is still out on whether these fixes will fix the problem long term. My guess, FWIW is that those affected will be pulling the inlet manifold off every 50K approx. until the fuel quality lifts. I haven't had an issue yet but last time I said that (squeaky springs), they turned up within the week.

[GLX-RSilver]

Ok, the parts used are;

1505A464 - Pipe, air inlet
2036A291 - Vacuum hose & pipe
MD026761 - cap rubber, 2.9mm
MN158295 - gasket-throttle body (others)
ME204371 - gasket-throttle body
1582A039 - gasket-EGR valve
MR161679 - gasket-exh/manifold EGR pipe

Cheers

Does anyone know the price of the above parts?

[boostedbmw]

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.