Hangar 9 P-40 Warhawk Assembly Manual page 28

Section 10: Two-Stroke Engine Installation

Step 2
Temporarily install the engine to the fuselage using four
8-32 x 1" socket head screws, four #8 washers and four
blind nuts. Leave the bolts loose enough not to draw the
blind nuts into the wood inside the fuselage.
Hint: You can also install the blind nuts
backwards to prevent them from pulling into
the wood on the backside of the firewall.
Just remember to move them to their correct
positioning before moving to the next section.

Step 3
Position the engine on the mount and temporarily attach
the engine using four 8-32 x 1
four #8 washers and four nylon lock nuts.
28
1 / " socket head screws,
4

Step 4
Position the engine so the front of the drive washer is
5 1 / " from the firewall. Tighten the bolts holding the
8
engine once the engine is positioned.

Step 5
Center the engine mount in relation to the oval holes in
the firewall. Tighten the bolts holding the mount to the
firewall. (Remember to make sure the barbs on the blind
nuts go into the backside of the firewall.)