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spark plugs and heads
Posted: Tue Apr 17, 2001 11:53 am
by Gene Wescott
Do all banana hole XPAG heads use half inch length spark plugs, did they change
to 3/4 inch with the round hole heads? Which is closer to the original heat range,
NGK B6HS or Champion 306? This weekend is the time to get my car out of storage,
and it needs new plugs, and they choice at the auto parts places is limited.
Gene Wescott
Re: spark plugs and heads
Posted: Tue Apr 17, 2001 12:12 pm
by Chip Old
On Tue, 17 Apr 2001, Gene Wescott wrote to
mg-tabc@yahoogroups.com:
> Do all banana hole XPAG heads use half inch length spark plugs
Yes
> did they change to 3/4 inch with the round hole heads?
Yes
> Which is closer to the original heat range, NGK B6HS or Champion 306?
Don't know. I still have a supply of Champion L87Y, which work well in my
TR4 as well as T-Types, so it has been years since I had to buy new plugs.
--
Chip Old 1948 M.G. TC TC6710 XPAG7430 NEMGTR #2271
Cub Hill, MD, USA 1962 Triumph TR4 CT3154LO CT3479E
fold@bcpl.net
Re: spark plugs and heads
Posted: Tue Apr 17, 2001 12:16 pm
by Skip Kelsey
Gene:
To my knowledge, all banana heads were short reach plugs. The NGK B6HS plug
is perfect for this head.I have been selling it for years.
Skip Kelsey..............
At 11:53 AM 4/17/01, Gene Wescott wrote:
>Do all banana hole XPAG heads use half inch length spark plugs, did they
>change
>to 3/4 inch with the round hole heads? Which is closer to the original
>heat range,
>NGK B6HS or Champion 306? This weekend is the time to get my car out of
>storage,
>and it needs new plugs, and they choice at the auto parts places is limited.
>
>Gene Wescott
>
>
>
>Your use of Yahoo! Groups is subject to the
>http://docs.yahoo.com/info/terms/>Yahoo! Terms of Service.
Re: spark plugs and heads
Posted: Tue Apr 17, 2001 5:28 pm
by Andrew Bradley
I'd go with a BPR6HS or ES, depending upon the reach. The P stands for
projected nose, which helps, and the R is for resistor, which keeps you
from broadcasting like an old VW bug as you motor merilly along.
Cheers...Andy
Spark Plugs and Heads
Posted: Wed May 02, 2001 3:42 am
by Skip Burns
Rereading an earlier question regarding the proper spark plugs for T-
Series XPAG engine heads, the answer can be found by examining the
number embossed on the top, forward right side of the head. Any head
stamped with the number 22592 takes a 14 mm plug with a half-inch
reach. Later heads had different numbers and, as far as I know, they
all take three-quarter-inch reach plugs. If you're not sure, make a
small bend in the tip of a wire. Reach down into the plughole and
measure it. NEVER, NEVER PUT THE WRONG PLUG INTO THE WRONG HEAD.
Having said that, I know of several instances where 3/4-inch reach
plugs have been installed in heads bearing the number 22592. The
trick is to install two copper washers behind the plug washer on the
longer plug. This places the plug head further down into the chamber
for improved combustion, yet doesn't interfere with the piston at
TDC.