Decarbon Engine Service

[Oxide™]

On the latest wheeler dealers where they have a competition to win a jaguar xk8 - Ed used a new machine service to decarbon the engine.

Does anyone know where this can be done or it is a new thing that has just started?

Would it be any use to a 2001 car?

 

[Matt82]

id be amazed if it needed it within the cylinder bores

engine management is meant to make sure the mixture is sensible so doesnt coke everything

the only hard carbon id expect you to find is burnt oil in the sump and coating in the insides of the engines

did jags have stupid 20k interval servicing to attract fleet buyers?

 

[Jonny69]

Decarbon engines? You haven't needed to de-coke engines since about 1955

 

[Deleted member 66701]

Decarbon engines? You haven't needed to de-coke engines since about 1955

+1

 

[Morbius]

Decarbon engines? You haven't needed to de-coke engines since about 1955

This one needed it - it was an MOT fail before the treatment.

 

[Wayn0r]

Decarbon engines? You haven't needed to de-coke engines since about 1955

2006 Audi RS4, 35k miles.

 

[GravyMonster]

WTF had he been running it on? Coal?

 

[Housey]

Lots of DFI engines suffer from coking...

 

[poker_999]

probably due to driver abuse.

35k miles in 6 years is pretty low as well, maybe lots of short but hard journeys

 

[Jonnycoupe]

probably due to driver abuse.

35k miles in 6 years is pretty low as well, maybe lots of short but hard journeys

Or maybe the fuel system delivery method now no longer washes the breather vapour deposits off the back of the inlet valve...

 

[Jonny69]

2006 Audi RS4, 35k miles.

I can't see the picture due to the firewall, but I can guarantee it's an exception to the rule.

Anyway, you know exactly what I meant. It's not routine maintenance to have to take the head off and decoke it

 

[ChrisD.]

That pic on the Audi is a known defect iirc.

 

[Housey]

probably due to driver abuse.

35k miles in 6 years is pretty low as well, maybe lots of short but hard journeys

Nothing to do with driver abuse

 

[Housey]

I can't see the picture due to the firewall, but I can guarantee it's an exception to the rule.

Really, how can you guarantee this?

 

[dalin80]

Welcome to the world of EGR valves all the muck of old engines combined with all the expense of new ones.

 

[Oxide™]

oh ok so this is not needed unless your car fails MOT due to excess hydro carbons?

 

[SB118]

Welcome to the world of EGR valves all the muck of old engines combined with all the expense of new ones.

pfft, no idea what you're talking about...

 

[Concrete]

I like to think I know my way around engines/cars but I honestly have no idea what that is?

 

[ShakenNstirred]

yeah EGR's are the main reason for the crud thats in modern diesel engines
its surprising how much crud you can get in a short space of time
its not in the combustion chambers as in the old days, its the intakes that get clogged

 

[Housey]

It takes only 1000 miles for a cleaned RS4 to start coking up again...