Sopwith Camel Manual - Hangar 9

Section 3A: Engine Installation Step 4Attach the engine to the engine mount using four .8-32 x 1 1 / 4" machine screws, four 8-32 lock nuts andeight #8 washers. Step 6Use a drill and 5/32" (4mm) drill bit to drill the locationfor the throttle pushrod tube.Hint: If you are having trouble getting to thescrews, remove the mount from the firewalland install the screws holding the engine.Reattach the mount back onto the firewall oncethe engine is secure. This is also helpful withthe Evolution .61 as the needle valve will needto be removed to access the left rear screw. Step 5Use a felt-tipped pen to mark the firewall in the area thatwill allow the throttle pushrod line up with the carburetorthrottle arm.Hint: You may have to remove the enginefrom the firewall as shown. Even betteris to have an extended length drill bitthat can reach back to the firewall. Step 7Roughen the throttle pushrod tube using medium gritsandpaper. Wipe the tube down using rubbing alcoholand a paper towel to remove any oils from the tube. Slidethe tube into the hole in the firewall, leaving about 1/2"(13mm) protruding from the firewall. Use medium CA toglue the tube to the firewall.14