Name: Textron Lycoming IO-540 Series
Brand: Textron
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TEXTRON

LYCOMING OPERATOR'S

MANUAL

0-540

& 10-540

SERIES

SECTION

(1) Remove

the hydraulic

tappet

push rod

socket

by inserting

the foref-

inger

into the

concave end

of the

socket and

withdrawing.

If the

socket

cannot

removed

in this manner,

it may

be removed

grasping

the edge

of the socket

with a pair

of needle nose

pliers. However,

care

must be exercised

avoid scratching

the socket.

(2) To

remove

the hydraulic

tappet

plunger

assembly,

use the special

Textron Lycoming

service

tool. In the

event that the

tool is not

available,

the hydraulic

tappet

plunger

assembly

may be

removed

hook in

the end of

a short

piece of

lockwire,

inserting

the wire

so that the

hook engages

the

spring

of the plunger

assembly.

Draw

the

plunger assembly

out

of the

tappet body

by gently

pulling

the wire.

CAUTION

Never

use

a magnet

to remove

hydraulic

plunger

assemblies

from

the

crankcase.

This can

cause the

check ball

to remain

off its seat,

rendering

the

unit inoperative.

d. Assembly

Hydraulic

Tappet Plunger

Assemblies

To assemble

the

unit,

unseat the

ball by

inserting

a thin clean

wire through

the

oil inlet

hole. With

the ball

off its seat,

insert

the plunger

and twist

clockwise

that the spring

catches. All

oil must be removed

before the

plunger

is inserted.

e. Assembly

Cylinder

and Related

Parts -

Rotate the

crankshaft

that

the connecting

rod

of the cylinder

being

assembled

is at

the top

center of

compression

stroke.

This can

be checked

by placing

two fingers

the intake and

exhaust tappet

bodies. Rock

crankshaft back

and forth

over top

center. If

the tappet

bodies do

not move

the crankshaft

the compression

stroke.

(1)

Place each

plunger

assembly

in its respective

tappet body

and

assemble

the socket

on top

of plunger

assembly.

(2)

Assemble

piston with

rings

so that the

number

stamped

on the

piston

pin boss

is toward

the front

of the

engine. The

piston

pin should

be of

a handpush

fit. If difficulty

experienced

in inserting

the

piston

pin, it is

probably

caused by

carbon

or burrs in

the piston

pin hole.

During

assembly,

always

use a

generous

quantity

of oil, both

in the

piston

hole and

on the

piston

pin.

5-13

Brand	Textron
Model	Lycoming IO-540 Series
Category	Engine
Language	English

Textron Lycoming IO-540 Series User Manual

Table of Contents

Questions and Answers:

Textron Lycoming IO-540 Series Specifications

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