Titan 340CC, Operation Manual

Page: 4 / 16

4 | Copyright © 2015 Airmotive Engineering Corp.
1.0 Description
1.1 General
The TITAN
®
340CC engine has been tested and are manufactured in
accordance with ASTM F2339-06. The TITAN ® 340CC engine is a 4-cylinder,
direct-drive, horizontally-opposed, and air-cooled engine. In referring to the
engine, the front is described as the propeller flange, the accessory case is at
the rear of the engine, the oil sump is located on the bottom, and the pushrod
shroud tubes are located on the top of the engine. Reference to left and
right side of the engine is made with the observer in the pilot (rear) position
facing the accessory section of the engine. The cylinders are numbered from
front to rear with odd numbers on the right. The direction of rotation of the
crankshaft (as viewed from the rear) is clockwise. Rotation of accessory drives
is determined with the observer facing the drive pad.
The cylinders are of conventional air-cooled construction with 2 major parts:
head and barrel, which are screwed and shrunk together. The heads are
made of aluminum alloy castings. Rocker shaft bearing supports are integrally-
cast in the head with an electro-polished stainless-steel rocker cover sealing
the upper valve train from the environment. The cylinder barrels are made
of thru-hardened steel that will have a Carbide
®
coating for additional
corrosion and wear prevention.
A conventional camshaft is located above and parallel to the crankshaft. The
camshaft actuates the hydraulic lifters to operate the valves via pushrods and
rocker arms. The rocker arms actuate about a floating rocker shaft, and the
valve springs are retained via hardened steel retainers and lower seats and
standard split keepers.
The crankcase assembly consists of 2 separate cast aluminum crankcase
halves, which are mated and machined together for precision fit with the
crankshaft and mating parts. The separate halves and the attaching structure
are secured together using floating thru-bolts, studs, bolts, anchor bolts,
and nuts. The mating surfaces of these 2 separate halves are joined without
the use of a gasket, and the main bearing “saddles” are machined to use
standard SAE sleeve-type bearings. No gasket or sealer material is allowed at
the bearing bosses of the crankcase, but some sealer materials are allowed at
the upper and lower split line. Reference is made to ECi TN 09-1.
The crankshaft is manufactured from 4340 VAR steel which has all bearing and
forged surfaces nitrided. Connecting rods are H-type alloy steel forgings also