Thread: Mitsu Trton 2.5 DI-D Commonrail......noisy

^ Don't think that is the timing sensor. Timing is usually done off the fly wheel or the crankshaft.

Originally Posted by peterpan

just developed it about 2 yrs ago.

Bingo!

Something must be wrong somewhere. It's actually quite embarrassing, I took a female friend out to dinner and driving along it was like being in one of these.....



Clearly it's not a mode of transport the fairer sex is impressed by.

Originally Posted by Thetyim

crankshaft position sensor.

I'll have to go hunting for that

Originally Posted by Spin

I know very little about diesels

Originally Posted by Spin

The problem is that the locals specialise in daylight robbery, lying to make a small job turn into a big one and not much else

Originally Posted by Spin

The guys in the workshop hooked up their diagnostic computer and advised that this noise was "normal" for the older triton

I think your worrying too much bud, but go find another Triton the same age to put your mind at ease

Just found this

I was just wondering about something, as my diesel now sounds louder than it did just a few days ago. I'm thinking it's because the weather got cooler, maybe, but I don't know.

But that beckoned the questions, why do diesels make the sounds they do anyways? A gas engine compresses fuel and uses spark. The diesel engine compresses the fuel a lot more, with no spark, making it ignite due to the pressure. Either way, the pistons go up and down to provide power for the engine.

Maybe it's just the extra compression and exploding of the fuel, rather than sparking it?

Jeff 1991 300d, 112k

.great question. I've been wondering the same thing myself and took a trip over to wikipedia where I read the following:
quot;The two main factors that held diesel engine back in private vehicles until quite recently were their low power outputs and high noise levels, characterised by knock or clatter, especially at low speeds and when cold. This noise was caused by the sudden ignition of the diesel fuel when injected into the combustion chamber. This noise was a product of the sudden temperature change, hence it was more pronounced at low engine temperatures. A combination of improved mechanical technology (such as two-stage injectors which fire a short quot;pilot chargequot; of fuel into the cylinder to warm the combustion chamber before delivering the main fuel charge) and electronic control (which can adjust the timing and length of the injection process to optimise it for all speeds and temperatures) have partially mitigated these problems in the latest generation of common-rail designs. Poor power and narrow torque bands have been helped by the use of turbochargers and intercoolers.quot;

.Several sources, but the big one is a supersonic shock wave that appears in front of the burning fuel during injection. When cold, the fuel also ignites late, so instead of burning nicely, it more explodes (commonly known as injector knock). If it's only for a very short time after starting, it's not a problem, but if it goes on all the time (and isn't a rod or bad lobe on the cam) you probably need to fix the injector or the low compression that's actually causing the noise.

Low compression will make knocking much worse (adjust the valves on 617.x engines -- the exhaust valves get tight with wear and you have low compression), so does overly advanced timing (stuck injection timer)

Why do diesels make the noise they do?

Originally Posted by Travelmate

what about the bigger engines does that use a belt or a chain?

One minute you're telling me it's a chain, when it's actually a belt, the next minute you're asking me about a different engine, even though I clearly announced I know nothing at all about diesel engines.

All you've contributed so far is to say the triton is a piece of shit, even though it's clear you know fuck all about them. Your posts in the motorcycle threads are of the same calibre, a right load of old bollocks!

Originally Posted by Thetyim

If you don't trust your local dealer then get opinions from some more "experts"

Experts like Travelmate?

Ok, so the plan was to start today and check the tappet shaft / tappets / valve stems / clearances. I'm 99 % sure this is not the problem but these have never been looked at for 5 years so there's no harm in doing it.

It was 38 degrees in the shade so I didn't bother

Maybe tomorrow.

I must find this timing sensor also.

Originally Posted by sabaii sabaii

I think your worrying too much bud, but go find another Triton the same age to put your mind at ease

I'm not worried about this at all, I just have this thing about me that makes me want to put things right and have everthing perfect on my cars and bikes. A bit like OCD.

Originally Posted by Travelmate

The 2.5 got a timing belt .

You said it was a chain.

Originally Posted by Travelmate

So it's clear I know plenty more than you.

Do you still own that 37 inch television that was never made?

Originally Posted by Travelmate

Clearly you lack the sense to know what is a good buy!

Who said I bought it?, it was the bosses run around and he's gone to Siagon for 4 years. I'm using it with the option to buy at 300,000.

Originally Posted by Travelmate

Full on workshop you say and yet here you are asking for tips on a forum!

Yes, is that too hard for you to figure out? Riggers right when he says you are a stupid kunt.

Originally Posted by Travelmate

Who in their right fucking mind would chrome an exhaust system on a dirt bike!

Oh for fuck sake shut up now. How about Ricky Carmichaels championship winning kx 250 adorned with a chrome pipe made by Pro-Circiut, have you ever heard of Pro-circiut? Mitch Payton? ring any bells you fucking wanker?

I don't know about diesels but searched some of the forums in the UK in case you didn't get the same results

Worn pulleys on the crankshaft. (sounds feasable) Mitsubishi Delica Owners Club UK™ :: View topic - Knocking in engine area on L300 Delica

destinct 'knocking' or 'tapping' sounds coming from the engine when on idle (although he doesn't say why, there is a link to ask him further questions)
My son is thinking of buying a Mitsubishi Wharrier 2.5 diesel - JustAnswer

Pajero/Shogun club, same engine though and some members seem to be in SEA
The Mitsubishi Pajero Owners Club® :: Index

Hope this helps.

Originally Posted by Travelmate

I'm a Fukkin dipshit!

We know and you're getting really boring.

Originally Posted by Neo

Originally Posted by Travelmate

I'm a Fukkin dipshit!

We know and you're getting really boring.

Very good Neo.

If it is a belt,change it NOW! And if it is the same engine as the Showgun (?) there will be two balancing shafts driven by the belt( or an extra one).. The plastic pulleys loose there key ways and or there teeth about this mileage and the engine makes funny noises down low revs. The shafts MUST be timed up correctly. If not,I have known them to break cam shaft bearing saddles! Don't ask me why.

Quote:---
When the balance shaft belts break, quite often people don't notice as the engine doesn't run -really- rough or anything, just a bit rougher than normal... however when you continue to drive this way you run the risk of the main belt catching the debris from t he balance belt. If this happens, it will take it for a ride up the belt and cause the main belt to jump time. This can and usually will wreck your valves

Read more: Mitsubishi shogun What hapened if balance shaft belt of mitsubishi - JustAnswer Mitsubishi shogun What hapened if balance shaft belt of mitsubishi - JustAnswer


Best of luck!

Originally Posted by Travelmate

I mistook it for a 3.2

The title of the thread clearly says 2.5 litre, never mind you are making yourself look like a right cock for backpedaling now.

Originally Posted by Travelmate

You're clearly lower down on the food chain.

Perhaps, But I know guys who earn big money and they behave with honour and integrity and never belittle the people around them for earning less or not having their status. Gentlemen behave like this.

You on the other hand, may be a big earner but you come across as a low class new-money big headed wanker, am I making myself clear?


"you must spread some more repo around before giving it to Neo again!

Will get you later, Cheers.

Originally Posted by Neo

but searched some of the forums in the UK in case you didn't get the same results

Thanks you very much for your time, effort and interest in assisting. I will read those threads shortly.

Originally Posted by crippen

If it is a belt,change it NOW! And if it is the same engine as the Showgun

Yes,belt change is scheduled.

I believe the Shogun has the 4M41 3.2 litle engine from the pajero and the bigger engined triton that I do not have because I "lower down the food chain" than "Totalwank"

Could also be the fuel type. If i use PT in my 3.2 Paj it rattles to buggery. Caltex, Esso or shell is much better.

Originally Posted by Jesus Jones

Could also be the fuel type. If i use PT in my 3.2 Paj it rattles to buggery. Caltex, Esso or shell is much better.

Just about to splash out on a 2.5 Paj Sport. Is there a recommended fuel type for Mitsu engines?

Originally Posted by Spin

Originally Posted by Travelmate

I mistook it for a 3.2

The title of the thread clearly says 2.5 litre, never mind you are making yourself look like a right cock for backpedaling now.

Originally Posted by Travelmate

You're clearly lower down on the food chain.

Perhaps, But I know guys who earn big money and they behave with honour and integrity and never belittle the people around them for earning less or not having their status. Gentlemen behave like this.

You on the other hand, may be a big earner but you come across as a low class new-money big headed wanker, am I making myself clear?


"you must spread some more repo around before giving it to Neo again!

Will get you later, Cheers.

Originally Posted by Neo

but searched some of the forums in the UK in case you didn't get the same results

Thanks you very much for your time, effort and interest in assisting. I will read those threads shortly.

Originally Posted by crippen

If it is a belt,change it NOW! And if it is the same engine as the Showgun

Yes,belt change is scheduled.

I believe the Shogun has the 4M41 3.2 litle engine from the pajero and the bigger engined triton that I do not have because I "lower down the food chain" than "Totalwank"

Shoguns I have worked on are 2.5 and 2.8 turbo diesel. Get the belt(s) changed!