912 & 914 Crankcase up to S/N 27811

B – Loctite 243
C – Loctite 648
L – Klueber Isoflex Topas Nb5051
O – Engine Oil
P – Loctite 5910

a – marked with S/N; 
b – Only for model 2 and 4; 
c – Tolerance group "C" 1.820 - 1.829 mm;
d – Tolerance group "D" 1.830 - 1.839 mm; 
e – Depending on configuration use 14 studs P/N 840752 M8x201 or 8 studs M8x201 and 6 studs P/N 840754 m8x210;
f – See Overhaul Manual of the respective engine type, current issue;
g – Only for use with new cylinders 913221 with countersunk. With the cylinder 913225 the countersunk was already introduced starting from beginning of the production;
h – See the following Service Instruction current issue SI-914-021.