Piper Comanche PA-24 Service Manual page 472

PIPER COMANCHE SERVICE MANUAL
j
Disconnect oil pressure line at engine . -
k. Disconnect
C)
linder head temperature wire from
1\0.
5 cylinder. Disconnect generator leads . .
generator. remove clamps securing wires to engine and draw them aft to the firewall.
m. Disconnect spark plug leads from top spark plug of each cylinder and draw them through the rear
baffles
n Disconnect manifold pressure line at the left rear baffle.
o. RemO\e fuel pump blast tube
p RemO\e fuel line from engine driven fuel pump.
q Disconnect engine breather hose at engine accessory housing
r.
Disconnect magneto .. p" leads at magnetos
s
Disconnect tachometer cable at engine accessory housing
\. Disconnect oil temperature wire from accessory housing
u Remo\e oil cooler lines
\ Disconect the governor control cable at the governor and remove clamps securing it to engine
w
Disconnect starter lead at starter and remove clamps securing it
to
engine
x.
Disconnect fuel pressure line from carburetor
,. Remo\e carburetor inlet line frc :arburetor and fuel pump.
1
Disconnect the throttle. mixture and carburetor heat controls from carburetor and cable
attachment bracket
aa Remove exhaust stacks from engine by removing attaching nuts and washers
ab Remove bonding straps from engine at side of mount.
ac To prevent damage to the tail when remo\ing the weight of the engine from the airplane. "ttach a
stand to the tail skid
ad Attach a one-half ton (minimum) hoist to the lifting strap and relieve the tension on the engine
mounts
ae
af
Check the engine for an) attachments remaining
to
obstruct its remO\al
Remove the cotter pin. nut. washer. front rudder shock mount and slee,'e from each mOunti.
bolt
ag
Slide bolts out of attaching points and swing engine free. placing it on a suitable support
7 A-29 Installation of Engine PA-24-2S0. (Refer to Figure 7 A-7.)
" Attach" one-half ton (minimum) hoist to the engine lifting strap and lift engine
b Swing engine into place. positioning the engine mounting lugs so the, align v.ith mount
attachment points
c Insert a mounting bolt into the engine mount until its threaded end extends one or t\\O threads
from the mount itself Insert a shock mount between the engine mounting bracket and the mount Slide the
mount bolt on through the mount and insert a mount spacer over the bolt and through the engine mounting
bracket
d Repeat the procedures in step ··c·· with the remaining three attaching points
e Install the front engine shock mounts on the bolts and over the forward end of the mount 'pacer.
check to see that the shock mounts are not binding Install washers and a nut on each mounting bolt
Tighten the nuts progressivel). following a circular sequence and torque to 40 foot-pounds and safetv'
f Connect starter cable
to
starter and clamp cable to left cylinder baffles and engine mount
g Attach generator leads to generator and clamp them to right ev'linder baffles and engine mount
h Attach exhaust stacks to engine cylinders using gaskets. washer and nuts
ISSl:ED: 8/18/72
2C18
POWER PLA_