Piper PA-24 Comanche Service Manual page 445

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PIPER COMANCHE SERVICE MANUAL
7C-18. ERpne.
7C.I'. Removal of [nline. PA-24·260 (Turbocharged) (Refer to Figure 7C·4.)
a. Tum off aU cockpit switches and disconnect the battery JfOund cable at the bactCry.
b. Move the fuel control lever located on the fuR. floor between the
twO
front seats to the OFF
position.
c.
Remove engine cowlin•. (Refer to panpph 7C-S.)
d. Dnin engine oil if desired.
e. Remove propeUer. (Refer to pUIIftPh 7C-9.)
f. Disconnect cabin beat. fuel pump and oil cooler air duets.
NOTE
Where a question may ariJe as where to eeeeaaeee
bose. line or wire. the
item at. the scparation should be identified (uqed> to facilitacc
installation. Open fuel. oil. vacuum lines and fininp should be covered
to prevent contamination.
,. Disconnect the manuold pressure line. No.6 cylinder
and
remove clamp securing it to engine
mOWlt.
h. Disconnect turbo oil supply lines
at
the enJine xcusory hOUM,.
I.
Disconnect mqncco up" leads. mard lead (left magncco only) and shicldint Jl'ounds from
mqnetos.
J. Disconnect tachometer drive cable and oil temperature lead from the engine accessory housing.
k. Disconnect vacuum hose at vacuum pump.
1.
Disconnect oil cooler oudet hose
at
eriline accessory housm, and inlet hose at oil cooler.
m. Disconnect engine breather from enline.
n. Disconnect exhaust gu and cylinder temperature leads from So. 6 cylinder c:'Chaust stack and
cylinder head.
o. Disconnect fuel pump inlet line and
drain hose at fU'CWall.
p. Disconnect fuel pressure. oil pressure and fuel flow meter vent lines.
q. Disconnect the stuter cable at the starter. remove cable clamps at the left side of the engine and
enpne mount. and draw cable aft to the firewall.
r. Disconnect altemator leads at alternator. remove clamps securirlJ wires to engine and draw them
aft to the firewall.
s. Disconnect alternate air door concrol cable.
t,
Disconnect throttle.
mi.'tt\1fC
and propeller governor centrol cables and remove clamps secunng
them to engine.
u. Remove tail pipe braces.
v,
Disconnect exhaust wute gate concrol cables and remove clamps securing them to the tail pipes.
\Y.
Disconnect spark plUJleads from left bottom spark plup.
x,
Remove bonding scraps from engIne at sides of mount.
y.
Loosen matneto mounanl nuts and rOtate magnccos to clear engine mount.
POWER PLANT
REVISED: 4/10/81
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