Malcolm wrote
|
| What does the MOT include anyway - I know there is a smoke
| test is there CO and HC as well?
|
For Diesel engines the only MoT requirement in the UK is that exhaust
smoke density at the engine's maximum unloaded speed (ie at the rev
limiter) mustn't exceed 2.5 1/m for non-turbo and 3.0 1/m for turbo (not
sure what these units are) using the average of 3 runs. There is not
currently any requirement for CO or HC testing on diesels. There is
quite a nice summary on
http://tinyurl.com/l65cr (pdf document).
Lubo wrote
| Hi guys
| before I finally decide to put intercooler in my LC there is one
question that bothers me:
| what will be the output of the CO2 gasses and shall I be able to pass
the EU control( I think
| in English is 'MOT technical inspection')
I'm guessing too, but as far as adding an intercooler goes: it will have
the effect of permitting more air to go through the system which, I
presume, would reduce smoke levels. However because the vehicle will be
stationary during the test the cooling effect will be limited, and under
no load the turbo won't have spun up much, so an intercooler probably
won't make much difference anyway.
What is the "EU control" you refer to? Doesn't each country have its
own standards?
I was present during the emissions test of my truck last year (I was a
bit worried because of the faint blue haze + smell round the back when
started from cold). But in fact it sailed through: in the UK they are
supposed to give you the average of 3 density runs, but if the first
shows low enough smoke levels (< 1.5 1/m) they can do a "fast pass" -
and that is what it did, to my total astonishment, with a score of 1.34.
It was on about 116k miles at the time.
OK, one vehicle does not make a statistical universe, and mine is the
1HD-FT with all the emissions gear intact, but based on my experience I
don't think you have anything to fear from the current UK MoT test.
My mechanic swears by a good dose of injector cleaner + a new air
filter, and if you are worried I would use a tankful of BP Ultimate (or
equivalent) diesel as a treat beforehand .. although there is of course
the time-honoured solution of turning down the mixture control prior to
the test!
Christopher Bell
Devon, UK
1996 1HD-FT
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