NGK spark plugs

[Keith Clements]

Here
JOWETT
MODEL ENG SIZE/NO OF PLUGS/DATE RECOMMENDED PLUG/STOCK NO./GAP MM/GAP THOU.

Early models 14mm Plug B6HS 4510 0.6 .024
Early models 18mm Plug AB-6 2910 0.6 .024
Javelin MK I 1.5 4 1947-1953 B6HS 4510 0.6 .024
Javelin MK II 1.5 4 1947-1953 B6HS 4510 0.6 .024
Javelin MK III 1.5 4 1947-1953 BR6HS 3922 0.6 .024
Jupiter MK 1 1.5 4 1950-1954 B6HS 4510 0.6 .024
Jupiter MK 1A 1.5 4 1950-1954 BR6HS 3922 0.6 .024
Jupiter R4 1.5 4 1953-1954 BR6HS 3922 0.6 .024