Rodeo engine failure

olcoolone, read this first

http://www.lcool.org/technical/elec_diesel_tuning/tuning.html

particularly on engine durability and how some chips can contribute to engine failure.

There is a lot of scaremongering regarding diesel chips, most are written be people who have no idea what they are on about..... the article on the LCOOL forum was written about 6 years or more ago when all this deisel chip stuff was still classed as witch craft.

This first started appearing when the high output small capacity modern diesel's first came out ...... fancy a 3lt 4 cylinder putting out more power then a 4.2Lt 6 cylinder..... can't be done.

If a diesel engine can not handle a power increase of 15 to 20% then the engineers are building grenades.

Look at the 1HZ or Nissans 6 cylinder with the common aftermarket turbo kit...... 50 to 80+% power increase with no reliability issues.

If it was true that reliability was affected then every Toyota or Nissan with a aftermarket turbo kit would be going BANG!..... considering most are used for extreme activities like towing or off road.

What about the factory old school diesels with the fuel supply wound up or the factory turbos with wound up boost??????

If after market chips were a problem why is it so many diesel specialists are selling them and offering a engine warranty with them...... Toyota Europe offers a chip for the Hilux that gives a 30% power gain.... and it's plug and play, the factory warranty still stays.

Some of the other manufactures in Europe also offer power upgrades through there tuning houses.

Have a look on the appropriate forums and see how many run aftermarket chips with no problems.

Sure they will affect durability but so does towing, bigger exhausts, bigger wheels, stop start driving, how it is driven and how it is serviced..... how much it is affected by is anyone's guess..... I would say maybe less then 1%.

It's simple show me the data to back the claim that the power increase or the chip caused the failure and I will believe....... and I will even say I'm wrong.

And I don't want any of this"my mate's neighbour down the road said his brothers friend knew this girls father who had a bloke at his work say his friend's cousin ...... BLAH BLAH BLAH."

Again I ask if they were as bad as some say why is it that many leading diesel specialists sell and support them.

I agree with you on most of the above when the integrity of the remapping is done by well qualified engineering people who have a thorough knowledge of their craft.

To say " chips don't destroy engines and nether does dealer servicing," (quote) is such an open ended statement I would say to you that you cannot provide absolute proof that they don't.

The article may be 6 years old BUT theory behind it is still sound and still applies today and there is plenty of other articles written out there that support this one.

I like this article because it explains the theory behind chipping or remapping and how it is achieved for if you don't have some knowledge of the theory behind it, you cannot make an informed choice when you go out to make a purchase.

The basic construction of the internal combustion engine is still the same today wether petrol or diesel, and the forces and the consequences are still at work. And you are right, a manufacturer spends years and millions to develop the right balance, when producing a vehicle, between engine, transmission, etc, then we mortals, as soon as we get it, start changing this or adding that based on the sales pitch of others or what we perceive to be lacking in it's design and that balance is changed then when some breaks then then we are left with the result.

"why is it that many leading diesel specialists sell and support them." you so rightly ask...........Pick up any 4WD magazine and start turning the pages and it will be full of advertisements informing you what your vehicle requires, what accessories are available to make that stock standard, off the showroom floor purchase, why it needs this or that to make better, faster, more powerful, sit higher, etc, etc, etc, because the sellers of all these add ons, are competing with one another to make money out of you because they have a product to sell.

And there is nothing wrong with most of it but check first before you buy and make sure that you fully understand that what you are doing won't compromise your vehicle.

I'm not even going to argue with you when you ask me to prove chips and dealer servicing doesn't destroy engines..... what sort of stupid uneducated question is that......

You can think what you want ..... you don't like chips and obviously dealer servicing so lets leave it at that!

End of discussion.

olcoolone, like everything, there needs to be balance to all arguments, anyone can have an opinion and because it is an open forum you have to accept that.

I can accept your opinion and the question is can you accept mine?

Now who can't accept who's opinion......

Your the one who replied to my post and challenged me...... I would say you can't accept my opinion.

If you accepted my opinion you would of not responded by asking me to prove it.

So what are you trying to prove and what's your argument?

Balance....if you make a statement then others have the right of reply.

Can't understand why anyone would chip a Prado. Mine goes so well in standard tune that I think it would be a waste of time and money!

Aandy if you don't want one don't get one..... simple.

Until you have driven one with a chip how can you make a comment that it would be a waste of time and money?

Oil analysis are best done before you have any problems, that way you have a record of readings to compare, and hopefully when a serious change of readings occur you can remedy any faults before major damage occurs.
Yes, any readings now will show faults.

Of course they are best done before but how can you do it before when the engine has already destroyed it's self?

Taking a reading now will give a bit of an insight of what has happened like diluted oil!

Oil samples can tell so much eve when the engine had died and give you a herad start into understanding what had failed.

They do the same wit metal surfaces under a microscope.

As for showing faults yes it will, but the degree of material breakdown and carbon contents alters.

When we have had anything destroy it's self whilst under warranty, the first thing they ask for are oil samples.

We have had 10 page reports come back to why something had failed with samples and photo's taken from a microscope.

We have one at the moment with a failed component that we are challenging at the moment.

I would be putting my money on this aswell.

With more power you might tend to drive in a higher gear! with more throttle used.

This in effect will Mean running at a High Brake mean effective pressure (BMEP) In otherwords lugging the motor! high amounts of power being thrown down on the Crank without increasing the Rev's of the motor will destroy it in no time.

Of course un like Aircraft most vehicles don't have manifold pressure gauges and an EGT to monitor the engine.

In an Aircraft High BMEP would be evident in Manifold pressure measured in Inchess being say 30 inchess! higher than RPM say 2100 RPM.
and of course EGT will be climbing along with Oil Temp increasing but oil pressure decreasing. All dead give aways really but hard to pick with limited gauges.

And all you do in an Aircraft to reduce BMEP is reduce the pitch on the prop to increase RPM just like changing to a lower gear in your vehicle.

Cheers.