Westerbeke 46 Manual do Operador descarregar pdf (Página 9)

BREAKING IN

YOUR

NEW

ENGINE

While

your

engine

has

had

at

least

one

hour

of

test

operations

to

demonstrate

accurate

assembly

and

correct

operation

of

all

systems,

it

still

requires

break

in

time.

Service

life

of

your

engine

is

dependent

on

how

your

engine

is

operated

and

serviced

during

initial

break-in

hours

of

operation.

Your

new

engine

needs

approximately

fifty

hours

of

initial

con-

ditioning

operation

for

breaking

in

each

moving

part,

thus

helping

maximizing

performance

and

service

life

of

engine.

Perform

this

con-

ditioning

carefully,

keeping

the

following

points

in

mind.

1.

Start

engine,

run

at

idle

while

checking

that

all

systems

are

functioning

-

sea

water

pump,

oil

pressure,

battery

charge.

2.

Warm

engine,

prefer

ably

by

running

propeller

at

fast

idle

while

tied

down,

until

water

temperature

gauge

moves

into

the

130

-

140

degree

range.

3.

Then

use

engine

at

moderate

load

(RPM)

until

normal

engine

operating

temperature

of

170

-

190'F

(77

-

BS'C)

is

reached.

4.

Avoid

rapid

acceleration

especially

with

a

cold

engine.

5.

Use

caution

not

to

overload

engine.

Grey

sign

of

overload.

Select

the

correct

engine

and

transmission

reduction.

or

black

smoke

is

a

propeller

for

the

6.

Operate

the

engine

in

moderation,

varying

the

running

RPM

under

load

during

the

break

in

period.

Explanation:

"Breaking

in"

a new

engine

is

basically

a

seating

of

the

piston

rings

to

the

cylinder

walls.

This

is

not

accomplished

by

long

periods

of

running

idle,

nor

by

early

running

under

full

load.

Idle

running

may

glaze

the

cylinder

walls

causing

oil

consumption

and

smoky

operation.

Excessive

speeds

and

loads

may

score

cylinder

walls

with

similar

results,

especially

with

the

engine

cold.

As

indicated

above,

operate

the

engine

in

moderation

during

the

ini-

tial

50

hours

of

break

in.

Don't

baby

it,

yet

do

not

abuse

it.

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