MOT Failure - to high on HC (hydrocarbons)

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S

Stuart

Guest
hi - wonder if you can help me - My Landy SeriesIII lightweight has
just failed on MOT, but emmissions only.

MOT station have told me that Hydrocarbons are to high:

should be <=1200ppm, but currently at 1400ppm

also told that the mixture is running very lean - need help - never
played with mixtures and that type of stuff (Or even ventured around
the carb on my landy) - can someone help?

Many thanks in advance,

Stuart,

 

"Stuart" <[email protected]> wrote in message
news:[email protected]...
: hi - wonder if you can help me - My Landy SeriesIII lightweight has
: just failed on MOT, but emmissions only.
:
: MOT station have told me that Hydrocarbons are to high:
:
: should be <=1200ppm, but currently at 1400ppm
:
: also told that the mixture is running very lean - need help - never
: played with mixtures and that type of stuff (Or even ventured around
: the carb on my landy) - can someone help?
:
: Many thanks in advance,
:
: Stuart,

out of interest, has it had new plugs lately? and how far did you have to
drive to get to the MOT station?

Si


 
sorry,

forgot to add, I am running a 2.25 petrol engine with 24v electrics

thks

stuart.


Stuart wrote:

> hi - wonder if you can help me - My Landy SeriesIII lightweight has
> just failed on MOT, but emmissions only.
>
> MOT station have told me that Hydrocarbons are to high:
>
> should be <=1200ppm, but currently at 1400ppm
>
> also told that the mixture is running very lean - need help - never
> played with mixtures and that type of stuff (Or even ventured around
> the carb on my landy) - can someone help?
>
> Many thanks in advance,
>
> Stuart,

 

"Stuart" <[email protected]> wrote in message
news:[email protected]...
> hi - wonder if you can help me - My Landy SeriesIII lightweight has
> just failed on MOT, but emmissions only.
>
> MOT station have told me that Hydrocarbons are to high:
>
> should be <=1200ppm, but currently at 1400ppm
>
> also told that the mixture is running very lean - need help - never
> played with mixtures and that type of stuff (Or even ventured around
> the carb on my landy) - can someone help?

First, check the ignition timing and adjust if necessary - if the timing is
out there's no point trying to adjust the carb. If the fuel mixture is very
lean this can cause high HC content due to incomplete burn. Easy carb to
adjust, there is an idle mixture screw on the side of the carb nearest the
engine, if memory serves me right it's in to enrichen, out to weaken. Most
mixture screws have a spring on them to allegedly prevent moving due to
vibration, but as things get older and weaker it's possible the screw has
unscrewed itself a little due to engine vibration. Once set correctly, a
spot of paint applied to it will at least let you see if it's moving of its
own accord. But check the timing first.
Badger.


 

"Badger" <[email protected]> wrote in message
news:[email protected]...
>
> "Stuart" <[email protected]> wrote in message
> news:[email protected]...
> > hi - wonder if you can help me - My Landy SeriesIII lightweight has
> > just failed on MOT, but emmissions only.
> >
> > MOT station have told me that Hydrocarbons are to high:
> >
> > should be <=1200ppm, but currently at 1400ppm
> >

Hang on a minute, won't it be a visual only smoke test on a series three?

I don't think he's got any right to put it on a tester - how old is the
vehicle?
TonyB


 
Hi - i dont know if it should be tested or not - it as a Landrover
Lightweight series III (the last of them)

problem is it is regiersted on a L plate (when it came out of the army)
and I cant find anything to indicate the original manafacture date.

Any suggestions?

thks

Stuart.

btw - what is the date if not required to have emissions test??

thks

Stuart.
TonyB wrote:

> "Badger" <[email protected]> wrote in message
> news:[email protected]...
> >
> > "Stuart" <[email protected]> wrote in message
> > news:[email protected]...
> > > hi - wonder if you can help me - My Landy SeriesIII lightweight has
> > > just failed on MOT, but emmissions only.
> > >
> > > MOT station have told me that Hydrocarbons are to high:
> > >
> > > should be <=1200ppm, but currently at 1400ppm
> > >
>
> Hang on a minute, won't it be a visual only smoke test on a series three?
>
> I don't think he's got any right to put it on a tester - how old is the
> vehicle?
> TonyB

 
btw - they tested as if this were made 1985

thks

stuart.



Stuart wrote:

> Hi - i dont know if it should be tested or not - it as a Landrover
> Lightweight series III (the last of them)
>
> problem is it is regiersted on a L plate (when it came out of the army)
> and I cant find anything to indicate the original manafacture date.
>
> Any suggestions?
>
> thks
>
> Stuart.
>
> btw - what is the date if not required to have emissions test??
>
> thks
>
> Stuart.
> TonyB wrote:
>
> > "Badger" <[email protected]> wrote in message
> > news:[email protected]...
> > >
> > > "Stuart" <[email protected]> wrote in message
> > > news:[email protected]...
> > > > hi - wonder if you can help me - My Landy SeriesIII lightweight has
> > > > just failed on MOT, but emmissions only.
> > > >
> > > > MOT station have told me that Hydrocarbons are to high:
> > > >
> > > > should be <=1200ppm, but currently at 1400ppm
> > > >
> >
> > Hang on a minute, won't it be a visual only smoke test on a series three?
> >
> > I don't think he's got any right to put it on a tester - how old is the
> > vehicle?
> > TonyB

 
Hi Stuart, if you are anywhere near me, would be glad to have a look at it
for you, should you still be in need.

"Stuart" <[email protected]> wrote in message
news:[email protected]...
> btw - they tested as if this were made 1985
>
> thks
>
> stuart.
>
>
>
> Stuart wrote:
>
>> Hi - i dont know if it should be tested or not - it as a Landrover
>> Lightweight series III (the last of them)
>>
>> problem is it is regiersted on a L plate (when it came out of the army)
>> and I cant find anything to indicate the original manafacture date.
>>
>> Any suggestions?
>>
>> thks
>>
>> Stuart.
>>
>> btw - what is the date if not required to have emissions test??
>>
>> thks
>>
>> Stuart.
>> TonyB wrote:
>>
>> > "Badger" <[email protected]> wrote in message
>> > news:[email protected]...
>> > >
>> > > "Stuart" <[email protected]> wrote in message
>> > > news:[email protected]...
>> > > > hi - wonder if you can help me - My Landy SeriesIII lightweight has
>> > > > just failed on MOT, but emmissions only.
>> > > >
>> > > > MOT station have told me that Hydrocarbons are to high:
>> > > >
>> > > > should be <=1200ppm, but currently at 1400ppm
>> > > >
>> >
>> > Hang on a minute, won't it be a visual only smoke test on a series
>> > three?
>> >
>> > I don't think he's got any right to put it on a tester - how old is the
>> > vehicle?
>> > TonyB
>


 
whereabouts are you? anywhere over sutton, surrey way?

Dad wrote:

> Hi Stuart, if you are anywhere near me, would be glad to have a look at it
> for you, should you still be in need.
>
> "Stuart" <[email protected]> wrote in message
> news:[email protected]...
> > btw - they tested as if this were made 1985
> >
> > thks
> >
> > stuart.
> >
> >
> >
> > Stuart wrote:
> >
> >> Hi - i dont know if it should be tested or not - it as a Landrover
> >> Lightweight series III (the last of them)
> >>
> >> problem is it is regiersted on a L plate (when it came out of the army)
> >> and I cant find anything to indicate the original manafacture date.
> >>
> >> Any suggestions?
> >>
> >> thks
> >>
> >> Stuart.
> >>
> >> btw - what is the date if not required to have emissions test??
> >>
> >> thks
> >>
> >> Stuart.
> >> TonyB wrote:
> >>
> >> > "Badger" <[email protected]> wrote in message
> >> > news:[email protected]...
> >> > >
> >> > > "Stuart" <[email protected]> wrote in message
> >> > > news:[email protected]...
> >> > > > hi - wonder if you can help me - My Landy SeriesIII lightweight has
> >> > > > just failed on MOT, but emmissions only.
> >> > > >
> >> > > > MOT station have told me that Hydrocarbons are to high:
> >> > > >
> >> > > > should be <=1200ppm, but currently at 1400ppm
> >> > > >
> >> >
> >> > Hang on a minute, won't it be a visual only smoke test on a series
> >> > three?
> >> >
> >> > I don't think he's got any right to put it on a tester - how old is the
> >> > vehicle?
> >> > TonyB
> >

 
Guess not then, am in manchester

"Stuart" <[email protected]> wrote in message
news:[email protected]...
> whereabouts are you? anywhere over sutton, surrey way?
>
> Dad wrote:
>
>> Hi Stuart, if you are anywhere near me, would be glad to have a look at
>> it
>> for you, should you still be in need.
>>
>> "Stuart" <[email protected]> wrote in message
>> news:[email protected]...
>> > btw - they tested as if this were made 1985
>> >
>> > thks
>> >
>> > stuart.
>> >
>> >
>> >
>> > Stuart wrote:
>> >
>> >> Hi - i dont know if it should be tested or not - it as a Landrover
>> >> Lightweight series III (the last of them)
>> >>
>> >> problem is it is regiersted on a L plate (when it came out of the
>> >> army)
>> >> and I cant find anything to indicate the original manafacture date.
>> >>
>> >> Any suggestions?
>> >>
>> >> thks
>> >>
>> >> Stuart.
>> >>
>> >> btw - what is the date if not required to have emissions test??
>> >>
>> >> thks
>> >>
>> >> Stuart.
>> >> TonyB wrote:
>> >>
>> >> > "Badger" <[email protected]> wrote in message
>> >> > news:[email protected]...
>> >> > >
>> >> > > "Stuart" <[email protected]> wrote in message
>> >> > > news:[email protected]...
>> >> > > > hi - wonder if you can help me - My Landy SeriesIII lightweight
>> >> > > > has
>> >> > > > just failed on MOT, but emmissions only.
>> >> > > >
>> >> > > > MOT station have told me that Hydrocarbons are to high:
>> >> > > >
>> >> > > > should be <=1200ppm, but currently at 1400ppm
>> >> > > >
>> >> >
>> >> > Hang on a minute, won't it be a visual only smoke test on a series
>> >> > three?
>> >> >
>> >> > I don't think he's got any right to put it on a tester - how old is
>> >> > the
>> >> > vehicle?
>> >> > TonyB
>> >
>


 
Stuart wrote:
> Hi - i dont know if it should be tested or not - it as a Landrover
> Lightweight series III (the last of them)
>
> problem is it is regiersted on a L plate (when it came out of the
> army) and I cant find anything to indicate the original manafacture
> date.
>
> Any suggestions?
>
> thks
>
> Stuart.
>
> btw - what is the date if not required to have emissions test??
>
> thks
>
> Stuart.
> TonyB wrote:
>
>> "Badger" <[email protected]> wrote in message
>> news:[email protected]...
>>>
>>> "Stuart" <[email protected]> wrote in message
>>> news:[email protected]...
>>>> hi - wonder if you can help me - My Landy SeriesIII lightweight has
>>>> just failed on MOT, but emmissions only.
>>>>
>>>> MOT station have told me that Hydrocarbons are to high:
>>>>
>>>> should be <=1200ppm, but currently at 1400ppm
>>>>
>>
>> Hang on a minute, won't it be a visual only smoke test on a series
>> three?
>>
>> I don't think he's got any right to put it on a tester - how old is
>> the vehicle?
>> TonyB

firstly check on the log book if it a V5C check section 10
for the date of first registration and see if there is a declared
manufacture date

if either are before 1st august 1975 then it should have a visual check only


--
Andy

SWB Series 2a ( dressed as a 3) "Bruce"
It's big, it's mean it's really, really green


 
its been declared as manafactured 1985 :-(

sounds a little new to me! :)


Andy.Smalley wrote:
> Stuart wrote:
> > Hi - i dont know if it should be tested or not - it as a Landrover
> > Lightweight series III (the last of them)
> >
> > problem is it is regiersted on a L plate (when it came out of the
> > army) and I cant find anything to indicate the original manafacture
> > date.
> >
> > Any suggestions?
> >
> > thks
> >
> > Stuart.
> >
> > btw - what is the date if not required to have emissions test??
> >
> > thks
> >
> > Stuart.
> > TonyB wrote:
> >
> >> "Badger" <[email protected]> wrote in message
> >> news:[email protected]...
> >>>
> >>> "Stuart" <[email protected]> wrote in message
> >>> news:[email protected]...
> >>>> hi - wonder if you can help me - My Landy SeriesIII lightweight has
> >>>> just failed on MOT, but emmissions only.
> >>>>
> >>>> MOT station have told me that Hydrocarbons are to high:
> >>>>
> >>>> should be <=1200ppm, but currently at 1400ppm
> >>>>
> >>
> >> Hang on a minute, won't it be a visual only smoke test on a series
> >> three?
> >>
> >> I don't think he's got any right to put it on a tester - how old is
> >> the vehicle?
> >> TonyB
>
> firstly check on the log book if it a V5C check section 10
> for the date of first registration and see if there is a declared
> manufacture date
>
> if either are before 1st august 1975 then it should have a visual check only
>
>
> --
> Andy
>
> SWB Series 2a ( dressed as a 3) "Bruce"
> It's big, it's mean it's really, really green

 

"Stuart" <[email protected]> wrote in message
news:[email protected]...
> its been declared as manafactured 1985 :-(
>
> sounds a little new to me! :)

Ok, so for the short-term, adjust the carb (after checking the ignition
timing!) and get it throught he MOT.
Then, contact the British Motor Industry Heritage Trust with all details
(chassis no; engine no; consignment no. etc etc) and get proof of age from
them. DVLA will then ammend the V5C and next years MOT will be a breeze.
Even if you only get proof of the age of the engine to within a few years,
there is a clause in the MOT that allows for the retro-fitting of an older
engine and the testing of the emissions to the age of the engine, not the
vehicle, if the engine is older than the vehicle. So if they (BMIHT) said
the engine was produced between 1973 and 76, the MOT tester (when presented
with the proof, i.e. the BMIHT letter) would have to test it as a 1976
engine for the purposes of emissions, for example. Not a lot of people know
about that clause in the testers manual. I've put a range-rover based (late
classic) hybrid through a test on visual only, due to the engine number!
Badger.


 
On or around 23 Jun 2006 09:55:56 -0700, "Stuart"
<[email protected]> enlightened us thusly:

>hi - wonder if you can help me - My Landy SeriesIII lightweight has
>just failed on MOT, but emmissions only.
>
>MOT station have told me that Hydrocarbons are to high:
>
>should be <=1200ppm, but currently at 1400ppm
>
>also told that the mixture is running very lean - need help - never
>played with mixtures and that type of stuff (Or even ventured around
>the carb on my landy) - can someone help?
>
>Many thanks in advance,

what year is it? the HC rules only come into play for late SIIIs.

lean mixture can lead to high HC so that may well be your problem. I'd
suspect carb wear or air leaks, or simply incorrect carb setting. adjust
the idle mixture, then get it checked again - if the HC is still high then
it could be burning oil.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Carpe diem, quam minimum credula postero" (sieze today, and put
as little trust as you can in tomorrow) Horace (65 - 8 BC) Odes, I.xi.8
 
Before you go to too much trouble, make sure the MOT testing station is
applying the correct emission rules for the age of your vehicle.


"Stuart" <[email protected]> wrote in message
news:[email protected]...
> hi - wonder if you can help me - My Landy SeriesIII lightweight has
> just failed on MOT, but emmissions only.
>
> MOT station have told me that Hydrocarbons are to high:
>
> should be <=1200ppm, but currently at 1400ppm
>
> also told that the mixture is running very lean - need help - never
> played with mixtures and that type of stuff (Or even ventured around
> the carb on my landy) - can someone help?
>
> Many thanks in advance,
>
> Stuart,
>


 
so the end result was quite funny.

Said emmisions testing machine was faulty and was reading 50% to high!!
Landy passed with flying colours!

Cheers - and happy motoring,

Stuart.


Swanning about wrote:
> Before you go to too much trouble, make sure the MOT testing station is
> applying the correct emission rules for the age of your vehicle.
>
>
> "Stuart" <[email protected]> wrote in message
> news:[email protected]...
> > hi - wonder if you can help me - My Landy SeriesIII lightweight has
> > just failed on MOT, but emmissions only.
> >
> > MOT station have told me that Hydrocarbons are to high:
> >
> > should be <=1200ppm, but currently at 1400ppm
> >
> > also told that the mixture is running very lean - need help - never
> > played with mixtures and that type of stuff (Or even ventured around
> > the carb on my landy) - can someone help?
> >
> > Many thanks in advance,
> >
> > Stuart,
> >

 
Thats the beauty of an oldie isn't it, you can get away with murder. I even
found some leaded petrol to put in mine the other day, but at that price I
won't be doing it too often.

--
Larry
Series 3 rust and holes



"Andy.Smalley" <[email protected]> wrote in message
news:[email protected]...
>
> firstly check on the log book if it a V5C check section 10
> for the date of first registration and see if there is a declared
> manufacture date
>
> if either are before 1st august 1975 then it should have a visual check
only
>
>
> --
> Andy
>
> SWB Series 2a ( dressed as a 3) "Bruce"
> It's big, it's mean it's really, really green
>
>


 
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