Disco 98 V8 Mixture

Hi all,

By the spark plug's appearance, my 98 dicso Petrol V8 is running rich. Can I
adjust the mixture or take other steps to sort it out?

Thanks
Pauly

In message <[email protected]>, Ask <[email protected]> writes
>Hi all,
>
>By the spark plug's appearance, my 98 dicso Petrol V8 is running rich. Can I
>adjust the mixture or take other steps to sort it out?



How long had the engine been running for when you checked the plugs?

Try checking them after a decent run.

If it is running rich it will be because of a fault rather then just
being out of adjustment.

A '98 disco runs a closed loop system and as such will be checking the
mixture for you many times a second so there needs to be a fault with
one or more components for it to run rich.

The only way to tell if it is running rich is to put it in a gas
analyser and see what is coming out of the exhaust . Is it due for an
MOT soon? easy way to check.

Hope this helps
--
Marc Draper

Thanks Marc,

That's probably it... but here in ausralia, the choice between running a bit
rich and a possible fix is lot'n'lots of $$$$$$$$

I was hoping it was adjustable... but such is life.. Perhaps I'll have some
disposable income one day ;-)

Regards
Pauly

"Marc Draper" <[email protected]> wrote in message
news:[email protected]...
> In message <[email protected]>, Ask <[email protected]> writes
>>Hi all,
>>
>>By the spark plug's appearance, my 98 dicso Petrol V8 is running rich. Can
>>I
>>adjust the mixture or take other steps to sort it out?
>
>
>
> How long had the engine been running for when you checked the plugs?
>
> Try checking them after a decent run.
>
> If it is running rich it will be because of a fault rather then just being
> out of adjustment.
>
> A '98 disco runs a closed loop system and as such will be checking the
> mixture for you many times a second so there needs to be a fault with one
> or more components for it to run rich.
>
> The only way to tell if it is running rich is to put it in a gas analyser
> and see what is coming out of the exhaust . Is it due for an MOT soon?
> easy way to check.
>
> Hope this helps
> --
> Marc Draper

On or around Wed, 21 Sep 2005 17:33:26 +1000, "Ask" <[email protected]>
enlightened us thusly:

>Hi all,
>
>By the spark plug's appearance, my 98 dicso Petrol V8 is running rich. Can I
>adjust the mixture or take other steps to sort it out?

bit more info...?


if it's a carb one, then I'd suspect carb faults or a blocked air filter.

if it's a simple hotwire with no lambda conrtol, yes, it can be adjusted -
the AFM has a hole to put an allen key into.

if it's a lambda-controlled one then there's a fault in the system
somewhere, anything from a dodgy lambda sensor to a buggered engine ECU.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"My centre is giving way, my right is in retreat; situation excellent.
I shall attack. - Marshal Foch (1851 - 1929)