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spark plugs
https://www.ausmini.com/forums/viewtopic.php?f=2&t=3354		 Page 1 of 2
Author:  mini_me [ Wed Dec 08, 2004 6:43 pm ]
Post subject:  spark plugs
hi all,
i'm having a bit of trouble with my spark plugs.
i'm using champion n9y plugs on a 1100 unleaded engine and
the plugs are becoming sooty and engine then does not fire on all 4 cylinders.
once i clean them engine runs like a dream.
am i using the right plugs and is this happening because i don't drive the car often
thanks :

roll:
Author:  drmini in aust [ Wed Dec 08, 2004 6:49 pm ]
Post subject: 
N9Y should be OK on an 1100, or any near stock Mini.
If sooty, either the mixture is rich or the ignition has a problem. How old are the plug leads, points & dizzy cap?
If all are sooty I'd suspect the carby mixture. :wink:
Author:  mini_me [ Wed Dec 08, 2004 6:55 pm ]
Post subject:  spark plugs
hi dr
yes all plugs were sooty
i'll adjust the mixture tomorrow
note..when i take the car for a long run and remove the plugs there all clean
that what makes me think the soot is from doing short runs or
just idling the car in the garage
thanks
Author:  drmini in aust [ Wed Dec 08, 2004 7:02 pm ]
Post subject:  Re: spark plugs
mini_me wrote:
hi dr
yes all plugs were sooty
i'll adjust the mixture tomorrow
note..when i take the car for a long run and remove the plugs there all clean
that what makes me think the soot is from doing short runs or
just idling the car in the garage
thanks

Either the carb mixture is set too rich or the float level is too high, I reckon. :wink:
Author:  min13k [ Wed Dec 08, 2004 7:12 pm ]
Post subject: 
or he just dont warm it up enuff to run of choke
makka
Author:  68matic [ Wed Dec 08, 2004 8:13 pm ]
Post subject: 
i had this problem

carb needle had bad marks on it
and put new gasket on breather plates (just under manifolds on the back)

now car doesnt turn off anymore,
because of plugs that are really sooty

because of plates that dont suck air no more?

fingers crossed
Author:  1380 yellow devil [ Wed Dec 08, 2004 8:53 pm ]
Post subject: 
I Would go with the Doc.

Carby has to rich of a mixture
Author:  gafmo [ Thu Dec 09, 2004 7:51 am ]
Post subject: 
1380 yellow devil wrote:
I Would go with the Doc.

Carby has to rich of a mixture


Or the wrong needle.. :?
Author:  Chris [ Thu Dec 09, 2004 11:16 am ]
Post subject: 
min13k wrote:
or he just dont warm it up enuff to run of choke
makka


Is the choke turning off properly?
Author:  drmini in aust [ Thu Dec 09, 2004 6:03 pm ]
Post subject: 
gafmo wrote:
1380 yellow devil wrote:
I Would go with the Doc.

Carby has to rich of a mixture


Or the wrong needle.. :?


Yeah there's only 800 or so of 'em now- at $20 each, which one is dead right for you? :lol: :shock:
Author:  gafmo [ Thu Dec 09, 2004 6:29 pm ]
Post subject: 
Dyno Time..Its just that the plugs are good after a long run and crap after short runs :?
Author:  MiNi MuLiShA [ Thu Dec 09, 2004 10:25 pm ]
Post subject: 
Bosch plugs for starters... not NGK or champion :roll:

thats not ur prob... its carby... im running with the "DR" and the boys :lol:

-Cam
Author:  mini_me [ Fri Dec 10, 2004 6:09 am ]
Post subject:  spark plugs
the doc was right the mixture was way out- too rich-.
i adjusted it by using my colortune spark plug which i
bought years ago for use on my mgb but never used it,
also found qne cylinder not firing due to a shorted spark plug.
thanks again guys
Author:  Wolfman [ Fri Dec 10, 2004 6:53 am ]
Post subject: 
Thank god for Ausmini, I can only imagine how many of us would have ended up forking out cash to a mechanic if it wasn't for the advice recieved here :D
Author:  gafmo [ Fri Dec 10, 2004 6:54 am ]
Post subject: 
Have you had your mini Long
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