O.S. Engines 12TR - Manual (Page 28)

12TR(P) THREE VIEW DRAWING Dimensions(mm)
■
Displacement
■ Bore
■ Stroke
■
Practical R.P.M.
■
Power output
■ Weight
SPECIFICATIONS
31.4
11
4-
φ
3.3
17.7 34.8
12.8
71.6
29.6
1/4-28UNF
2.11 cc (0.129 cu.in.)
14.0mm (0.551 in.)
13.7mm (0.539 in.)
4,000
~
36,000 r.p.m.
1.1 bhp / 30,000 r.p.m.
210g(7.27oz.)
27