Jump to content

Pinto emissions fail


magh
 Share

Recommended Posts

Afternoon all unfortunately the kit failed it’s mot last week one of which was emissions the co failed at I think around 4.7 when it has to be under 3.5

its been stood over a year for various reasons and it’s running r1 carbs. When it was set up by Bogg brothers I think it was 2.8 or something. 
 

I’ve cleaned the carbs and put new plugs in and slightly turned the air fuel mixture screws for idle. Sadly as it has no mot i can’t drive it to get them set up and the mot garage won’t touch the carbs. I’m back in the morning for a retest and just wondered as it’s unburnt fuel causing the issue would increasing the idle speed help at all along with me already lowering the a/f mixture screws or would the increase in revs create more vacuum and jn return pull more fuel anyway? Thanks all

Link to comment
Share on other sites

i would suggest leaving it running on the drive for a little bit ensure that anything that is unburnt is either burnt or ejected. For my MOT (i have a superspec with Rover engine) to get it through emissions has to run hot so make sure its arrived just in time for the MOT with the engine already at temperature. 

 

IN other words let it get nice and toasty before it goes in

Link to comment
Share on other sites

On your V5c what emission limits are stated? Mine has nothing so I think should be just a visible smoke test. Sometimes my mot place take a reading and tell me off as it’s too lean, but on my sheet it says the limit is 4.5 for CO. Not 3.5 I’ve got R1 carbs, mains are 1.7 but not sure on the idles, I should put bigger ones in.

its a pinto btw.

Edited by Peter Bell
Link to comment
Share on other sites

Have you got air filters on the carbs?  If you have I'd make sure they're clean, or better still, I'd leave them off for the MOT.

Link to comment
Share on other sites

I’m going to check the v5 in the morning but I’m 99% certain it’s listed on there. 
 

I do I have a pipercross px600 filter I did think about leaving it off to allow as much air into them as possible 

Link to comment
Share on other sites

Link to comment
Share on other sites

  • 5 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...