Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Spark Plug: Application and ID

Spark Plugs

Engine
B 6284 T
B 6294 S
Volvo Kit Number Torque Gap
272 367 18.4 ft. lb. 0.030 Inch

Engine
B 6304 S3
Spark Plugs with 3 Electrodes
Volvo Kit Number Torque
272 371 18.4 ft. lb.
Gap
One Electrode The Other 2 Electrodes
on the Same Plug
0.020 +/- 0.004 Inch 0.020 +/- 0.0098 Inch