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B.E.C emissions
keith - 19/6/06 at 07:46 PM

i have my sva date(27th june) so i am taking it to a mates garage for a pre emissions test,he asked me for some idea what the levels should be,i found this on the site,co<=0.3%,hc<=200ppm,is that enough to go on?


bigrich - 19/6/06 at 08:51 PM

sva limits should be the same as current mot car limits as they use the same bet test (basic emmisions test) so they will probably check it to 0.2%co at 3000rpm less than 200 hc's and a lambda value of 0.97 to 1.03 then a check at idle of less than 0.3% co they may allow 0.3% co at 3000rpm and 0.5at idle depending on engine age. all this assumes its a post 95 engine hope this helps


keith - 19/6/06 at 09:00 PM

thanks for that,the engine year is 2000,i have fitted a cat but dont have a lambda sensor ,martin at mk says might have to do goldfish bowl set up hence the pre emission test,cheers


bigrich - 19/6/06 at 09:31 PM

good luck with sva hope it all goes well
big rich


zxrlocost - 19/6/06 at 10:36 PM

bigrich is totally right
I was told by SVA bloke when I was setting uo my car

tickover 0.5 co

fast idle 2500-3000rpm

co 0.3
hcc max 200
Lamda 0.97-1.03

but on the sheet when i passed it said

CO tickover max allowed 0.3

fast idle CO 0.2 max allowed

I passed my r1 by adjusting the mixture screws only

its a fiddly job TBH

get the CAT HOT


keith - 22/6/06 at 09:03 PM

thanks for your help,the cat will be hot as i am driving it there,its about 6 mile from me,after the pre test will mess with mixtures to get it as near as damn,thanks to all (cant wait till tuesday)


richard thomas - 23/6/06 at 07:30 AM

SVA pass figures -

CO idle 0.50

CO fast idle 0.30
HC fast idle 200
lambda 0.97 - 1.03

These taken from my test yesterday ( which i failed by the way)

Is it possible that different sva centres are using different pass criteria??

Good luck!

Rich.


zxrlocost - 23/6/06 at 08:32 AM

I reckon so but only on the CO


richard thomas - 23/6/06 at 11:11 AM

Yes, the other two seem pretty standard. I think it takes some doing to get over 200 on the HC...


keith - 24/6/06 at 09:38 PM

took car to garage for emissions test, ok on idle but to much waste fuel, so need to really turn those screws in,but anyway the mot guy made a good point,if the car is built from a doner vehicle and is registered as a1990 car then the year of the engine shouldnt matter ,because when he tests the car in 3 years time the emissions test will be based on the reg of the car so a basic idle test will do, over to you lads!!!!!! Rescued attachment th_1d3282ab.jpg
Rescued attachment th_1d3282ab.jpg


zxrlocost - 24/6/06 at 10:13 PM

if your bike engine is 95 to present day then for SVA you will do an emissions test
readings as above

once registered three years later at first MOT if on Q plate should be no emissions test

strange but true


bigrich - 25/6/06 at 01:58 PM

mot emmisions are stated on your log book. if you read the mot manual it states q plates are visual but also says kits built after 98 s reg are subject to sva and are tested to the limits of the year of engine fitted.


why could you not say at sva i want a q plate so its emmisions exempt save a lot of bother don't you think

my 2005 92 j reg is cat emmisions to pre 2002 limits


smart51 - 25/6/06 at 03:55 PM

quote:
Originally posted by richard thomas
it takes some doing to get over 200 on the HC...


My HC was 1200 when I first tested it prior to SVA. Adjusting the valve shims got it down to 600 and a bigger cat got it down to 180.

I had to try hard to get it below 200ppm