Piper COMANCHE PA-24-180 Service Manual page 352

PIPER COMANCHE SERVICE MANUAL
J
k.
generato
m.
baffles
Disconnect oil pressure line at engine
Disconnect cylinder head temperature wire from No. 5 cylinder. Disconnect generator leads
r. remove clamps securing wires to engine and draw them aft to the firewall.
Disconnect spark plug leads from top spark plug of each cylinder and draw them through the rear
n Disconnect manifold pressure line at the left rear baffle.
o. Remoxe fuel pump blast tube
p
Remove 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
t. Disconnect oil temperature wire from accessory housing
u Remove oil cooler lines
X
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
Remove carburetor inlet line frc
carburetor and fuel pump.
;
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 preent damage to the tail when removing the weight of the engine from the airplane. attach 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
Check the engine for an! attachments remaining to obstruct its removal
af
Remove the cotter pin. nut. washer. front rudder shock mount and sleeve from each mouninar
bolt
Slide bolts out of attaching pots and swin enge free. placg on a suableuppor
ag Slide bolts out of attaching points and swing engine free. placing it on a suitable support
7A-29 Installation of Engine PA-24-250. (Refer to Figure 7A-7.)
a Attach a 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 with mount
attachment points
c
Insert a mounting bolt into the engine mount until its threaded end extends one or two 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 spacer.
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 safety
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 c linder baffles and engine mount
h
Attach exhaust stacks to engine cylinders using gaskets. washer and nuts
ISSUED: 8/18/72
2C18