LCGB Forums

by **Thackers** » Sun Jan 07, 2024 1:00 am

Hi guys, I'm uncertain as to which spark plug type i should be using in my B.
I know it came to me with a long reach type (BR7ES) and works ok, but browsing all that seems to be offered is a short reach version (BR7HS) So which is the correct one? Thanks for any help 8-)

by **Fast n Furious** » Sun Jan 07, 2024 2:53 am

19mm is the correct reach. So BR7ES.

by **Thackers** » Sun Jan 07, 2024 1:35 pm

Thank you, 8-)

by **jbcollier** » Wed Jan 10, 2024 3:23 pm

The ignition systems are pretty marginal so a non-resistor plug would be a better choice: B7ES.

by **Steve J** » Fri Jan 12, 2024 8:04 pm

Apologies if I've got this wrong, but as far as I know all the A, B, C, LC, D & LD models use a short reach plug. Using a long reach plug on these early models runs the risk of putting a dent in the piston crown....

by **Fast n Furious** » Fri Jan 12, 2024 9:25 pm

Just had a look at an old model B head in my junk box. It has a 19mm reach plug in it. Extracted the plug and found it was shimmed with washers. Doh!

LCGB Forums

Model B spark plug?

Model B spark plug?

Re: Model B spark plug?

Re: Model B spark plug?

Re: Model B spark plug?

Re: Model B spark plug?

Re: Model B spark plug?

Who is online