metro engine

[keith]

Clockwise will richen the mixture.

here is a list of needles, carbs and cars:
http://www.minimania.com/web/DisplayID/ ... ticleV.cfm

here's more good stuff:

http://www.theminiforum.co.uk/forums/in ... pic=114176

you will find more info using Google....

[rhys mate]

got the needle out (finally) and its a BDR which on that site keith showed me says it is suitable for a 1380 so maybe thats why shes running so rich thanks for that keith!!

[keith]

the diff. needle does *NOT* explain how the idle is so poor. like i mentioned earlier, *any* needle can be made idle.... if you look at the graph below (thanks to the good guys at http://www.minitylamb.co.uk)
the diference between the two needles is not great until you get up to high acceleration or high revs. the idle/cruise part of the needle, typically the first 1/3 is very nearly the same, in fact the BDR is a tad leaner in parts. to me it does *NOT* explain those high readings at the NCT.

[rhys mate]

im pretty sure the jet and the small bimetallic gizmo is knackered?? apparently they get worn out after 55000 miles or so? ive ordered a BDP needle (minisport recommendation) and repair kit for it and ill borrow a gas analyzer and set it up properly!! i hope i haven't wasted money though???
the reading from the NCT were taken at 700 rpm!!

[keith]

im pretty sure the jet and the small bimetallic gizmo is knackered?? apparently they get worn out after 55000 miles or so?

not heard of that before.... *but* im new to HIF's.

ive ordered a BDP needle (minisport recommendation) and repair kit for it and ill borrow a gas analyzer and set it up properly!! i hope i haven't wasted money though??? the reading from the NCT were taken at 700 rpm!!

i'd have borrowed the analyser and set it up first, then decided if i needed to replace stuff. but, still cheaper than splashing out for a new carb!

[rhys mate]

i live that mintylanb site it brilliant haha!! one thing thats worrying is it says the BDP needle is richer?? nightmare!!

[keith]

AFAIR the reading is taken at idle for your car... like you said,.. @ 700rpm.. *any* needle will do at that speed. all the ones we talked about will get u through at idle.

[rhys mate]

ok cool thanks i mill for the help well appreciated!! bloody mini's haha!! wish i had a HS carb!! ill try get my hands on an analyzer and see what i can do to get it right and swap needles to see how i get on!! cheers keith!!