Can't say I've heard of 'NYK9' plugs but anything based on N9 should be OK.
Are all four fouling the same amount? Sounds very rich. What techniques
did you use to set up the SUs? You might like to have a look at the
web-site below - select 'Spanners' and 'SU Carbs'.
PaulH
http://www.mgb-stuff.org.uk
----- Original Message -----
From: <MGBBRENDA@aol.com>
To: <mgs@autox.team.net>
Sent: Sunday, September 10, 2000 9:17 PM
Subject: Foul Plugs
> I need some help to determine why my 77 B spark plugs are fouling. First,
I
> just switched from a Weber to twin SU's (HS-4's). The plugs were already
> fouling (black soot). The choke was sticking open on the Weber and I
already
> had a complete SU set up ready. Changed the carbs, but still getting
black
> fouling (not oily). Since I have an electronic ignition, thought it might
be
> a problem with the ignition. Put on a new coil and new ignition amplifier
> module (was for another B of mine). Got those changed and for the first
few
> minutes, the car accelerates and idles great, but as soon as the B gets up
to
> temperature, it cuts out, and fouls the plugs. I am using Champion NYK9
> spark plugs. I hesitate to adjust the jets on the SU's, only because I
took
> them off of a B that was running great.
> Please let me know what else I should consider looking at.
>
> Brenda McCarty
> 1977 B (daily driver)
> 1979 B (my husbands daily driver)
> 1969 B (my project car that will be street legal/race prepared-will be
> finished by October)
> 1969 B (project car-to be restored for my parents for their wedding
> anniversary next year).
|