>First I asked about the Riley's plugs:
> The handbook for my Riley ('48 RMA) specifies
> Champion L10S sparking plugs. Assuming this plug is no
> longer called this (or no longer made) can someone
> provide cross-references for either newer Champs or
> other brands ?
Then Roger Garnett added much good info:
My MG PA calls out something like KLG L.K.1's (Yea, right!) which I think
also crossed to or listed somewhere as Champ L10's, which are 14mm, 1/2"
reach.
It had L7's installed when I got it. Neither could I find. I called
Champion's Racing support on this one. (800-537-8984) They suggested L90C ,
or maybe L82C, which is colder. I think L87C are also a 1/2" plug, I'd have
to check my plug applications booklet. (And, I'd have to look and see what
#'s actually in there)
Then I broke down and started calling people, (as if I
don't have better things to do with mY WEDDING ONLY ONE
WEEK AWAY AHHHHHHHH !!!!!! whew - sometimes it just
overtakes me.) and I found the out the following ....
Mike O'Connor from O'Connor's Classic Automobiles
listed NGK BP6HS as replacements for the Champion L10S.
Champion support told me that the plug originally
spec'd for the Riley (L10S), is replaced with an RL82C.
They also told me how to deciper their plug numbers,
which is listed below.
Example: RL82C
R- resistor plug
L- code indicating size specifics (in this case, "L"
indicates 14mm thread size, 1/2" reach, and 13/16" hex)
#- heat range (she thought the higher the number the
hotter the plug, makes sense to me)
Applications:
1-25 Automotive/small engines
26-50 Aviation
51-75 High performance
76-99 Industrial/Special applications
next letters- firing end design, ex: "C" is copper plus
Next I had her double check the NGK listing Mike
O'Connor had given me, and she said the NGK BP6HS
cross-references to the Champion L87YC. Hmmm.
We'll see, as I'm sure to fiddle about with it
this weekend.
cheers-
daren
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