DotMatrix - 2/1/2017 12:39 AM
Re-Carbed - 1/1/2017 10:55 PM
DotMatrix - 31/12/2016 8:18 PM
Either turn the adjuster screw out a full revolution and bring a suitable screw driver with you to the next mot to do the final adjustment or go to a garage and have it adjusted, it shouldnt take more than 5 minutes to adjust. There isnt and easy way to do it without measuring.
Thanks for that. Have you any idea roughly how much reduction in CO a turn out is worth? My engine is producing 6.5% too much and that's a lot. Also, what about that diaphragm valve inside the housing at the side that is rumoured to leak? Any mileage in that causing an issue do you think? Finally, if I were to set the jet level with the bridge, is there a standard number of turns in with the screw to set the mixture about right? Thanks in advance.
my guess
(emphasis on guess
) would be 1-2% reduction for one turn. The reason I write you can turn it out is "as a show of good faith" when you turn up at your local MOT place again with a screwdriver.
but the only real way to adjust this is to measure the co level while turning the screw. it must be very cheap to get at garage to do this adjustment as it shouldn't take more than 5 minutes.
I don't know about the possible leaking diaphragm.