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Jobsheet Overhaul Mesin Mobil

JOBSHEET PENGUKURAN

OVERHAUL MESIN MOBIL

DIKUMPULKAN DENGAN LAPORAN PRAKTIK

Tanggal Praktikum : …………….

Kl!m"!k : …………..

Angg!ta Kl!m"!k :

#$ …………….

%$ …………….

&$ …………….

'$ …………….

($ …………….

)ORKSHOP AUTOMOTIVE

TEKNIK KENDARAAN RINGAN

SMK BAGIMU NEGERIKU

Teknik Kendaraan Ringan – SMK Bagimu Negeriku 1


2/12


OPERASIONAL SHEET OVERHAUL MOBIL

A$ PEMERIKSAAN KEPALA SILINDER

a. Memeriksa kerataan keala silinder! exhaust " intake manifold

#lat ukur $ang digunakan % .....................................................

N!$ P!*i*i Ha*il ukur +mm, Bata* Sr-i.

KlngkunganK"ala Silin/r Intak Man$ E01au*t Man$

1 #

& B

' (

) *

+ ,-

Kesimulan % .....................................................

b. Memeriksa keretakan keala silinder


/asil 0emeriksaan % .....................................................

Kesimulan % .....................................................

c. kur an2ang batang katu

#lat ukur $ang digunakan% .....................................................

Silin/rHa*il ukur +mm, Stan/ar +mm,

IN E2

#3 4 3 4

33 4 33 4

%3 4 3 4

33 4 33 4

&3 4 3 4

33 4 33 4

'3 4 3 4

33 4 33 4

Kesimulan % .....................................................

Teknik Kendaraan Ringan – SMK Bagimu Negeriku &


3/12


d. kur sudut dudukan kontak katu


N! Silin/rHa*il ukur +/ra3at, Stan/ar *r-i. +/ra3at,

IN E2

#3 4 3 4

33 4 33 4

%3 4 3 4

33 4 33 4

&3 4 3 4

33 4 33 4

'3 4 3 4

33 4 33 4

Kesimulan % .....................................................

e. kur tebal keala katu 5margin6 stock thickness7


N! Silin/rHa*il ukur +mm, Stan/ar *r-i. +mm,

IN E2

#3 4 3 4

33 4 33 4

%3 4 3 4

33 4 33 4

&3 4 3 4

33 4 33 4

'3 4 3 4

33 4 33 4

Kesimulan % .....................................................

f. kur lebar ersinggungan ermukaan dudukan katu 5 grinding surface7


N! Silin/rHa*il ukur +mm, Stan/ar *r-i. +mm,

IN E2

#3 4 3 4

33 4 33 4

%3 4 3 4

33 4 33 4

&3 4 3 4

33 4 33 4

'3 4 3 4

33 4 33 4

Teknik Kendaraan Ringan – SMK Bagimu Negeriku '


4/12


Kesimulan % .....................................................

g. (elah oli batang katu


Silinder

1

Silinder

2

Silinder

3

Silinder

4

Spesifk asi

celah oli

Batas ygdibolehk

an

Katup IN

1).............

2) .............

1).............

2) ............

1).............

2) .............

1).............

2) .............

Katup EX

1)...........

..

2) .............

1)...........

..

2) .............

1)...........

..

2) .............

1)...........

..

2) .............

Kesimulan % .....................................................

h. kur diameter batang katu


Silin/r

Ha*il ukur +mm, Stan/ar

+mm,IN E2

#

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

%

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

&

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............' 17. .............

&7. .............

17. .............

&7. .............

Teknik Kendaraan Ringan – SMK Bagimu Negeriku )


5/12


'7. ............. '7. .............

17. .............

&7. .............

'7. .............

17. .............

&7. .............

'7. .............

Kesimulan % .....................................................

i. Memeriksa egas katu


KATUP INKmiringan mak*$

+mm,

Pan3ang 44a*

minimum +mm,Tgangan minimum +kg,

Limit Ketidaklurusan % ........ 0an2ang bebas % ...........0an2ang terasang % ...........

ST* % ..............

Silinder 117.............

&7 .............

17.............

&7 ............

17.............

&7 .............

Silinder &17.............

&7 .............

17.............

&7 .............

17.............

&7 .............

Silinder '17.............

&7 .............

17.............

&7 ............

17.............

&7 .............

Silinder )

17.............

&7 .............

17.............

&7 .............

17.............

&7 .............

KATUP E2Kmiringan mak*$

+mm,

Pan3ang 44a*

minimum +mm,Tgangan minimum +kg,

Limit Ketidaklurusan % ........ 0an2ang bebas % ...........0an2ang terasang % ...........

ST* % ..............

Silinder 117.............

&7 .............

17.............

&7 ............

17.............

&7 .............

Silinder &17.............

&7 .............

17.............

&7 .............

17.............

&7 .............

Silinder '17.............

&7 .............

17.............

&7 ............

17.............

&7 .............

Silinder )17.............

&7 .............

17.............

&7 .............

17.............

&7 .............

Kesimulan % .....................................................

Teknik Kendaraan Ringan – SMK Bagimu Negeriku +


6/12


j. Memeriksa 8elah oli rocker arm dan oros rocker arm


Silin/r P!r!*

5 Dalam rocker

arm +mm,

5 Luar "!r!*

rocker arm +mm, Dalam 6 luar

+mm,

S"*i7ika*i

.la1 !li

+mm,

Bata* 8g

/i4!l1kan

+mm,S"k : $$$$$$$$$$ S"k : $$$$$$$$$$

#

3Na7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

,9a7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

%

3N a7. ................ b7. ................

a7. ................ b7. ................

a7. ............ b7. ............

,9a7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

&

3Na7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

,9a7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

'

3Na7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

,9a7. ................

b7. ................

a7. ................

b7. ................

a7. ............

b7. ............

Kesimulan % .....................................................

k. Mengukur 8elah oli oros 2urnal dan tutu bantalan camshaft


5 /alam

4antalan

5 luar "!r!*

3urnal .am*1a7t

5 Dalam 9

Luar +mm,

S"*i7ika*i

.la1 !li +mm,

Limit

+mm,1

&

'

)

+

Kesimulan % .....................................................

Teknik Kendaraan Ringan – SMK Bagimu Negeriku -


7/12


l. kur lebar bebas spacer


S"a.r Ha*il ukur +mm, L4ar minimum *"a.r +mm,

1

&

'

)

Kesimulan % .....................................................

m. 0eriksa kondisi wave washer untuk kondisi rata atau rusak:

/asil emeriksaan %

n. Memeriksa tinggi bubungan 5cam lobe7


N!$ am L!4 Ha*il ukur +mm, Nilai *tan/ar +mm, Nilai min$ +mm,

1 3NT#K,,9/#ST

&3NT#K,

,9/#ST

'3NT#K,

,9/#ST

)3NT#K,

,9/#ST

+3NT#K,

,9/#ST

-3NT#K,

,9/#ST

;3NT#K,

,9/#ST

<3NT#K,

,9/#ST

Kesimulan % .....................................................

o. Memeriksa se8ara visual keausan ada enggerak camshaft 5 rantai atau timing belt 7/asil emeriksaan % .....................................................

Kesimulan % .....................................................

p. Memeriksa kebengkokan maksimum 5run out 7


Ha*il Ukur +mm, Bata* limit +mm,

...... ......

Kesimulan % .....................................................

q. Memeriksa end play oros bubungan


Teknik Kendaraan Ringan – SMK Bagimu Negeriku ;


8/12


Ha*il ukur +mm, S"*i7ika*i +mm, Bata* limit +mm,

............................... ............................... ...............................

Kesimulan % .....................................................

B$ PEMERIKSAAN DAN PENGUKURAN BLOK SILINDER

1. 0emeriksaan kondisi blok silinder se8ara visual

• 0ermukaan blok silinder

% .......................................................................................................................

..............................................................................................................................................

.............

• Kondisi lubang silinder

% .......................................................................................................................

..............................................................................................................................................

.............

Kesimulan % .....................................................................................................................

&. 0emeriksaan kerataan6kelengkungan ermukaan blok silinder


N!$ Bl!k *ilin/r Bata* *r-i. k4ngk!kan +mm,

A

B

D

Kesimulan % .....................................................

'. 0engukuran diameter silinder


Titik

"ngukuranSilin/r # Silin/r % Silin/r & Silin/r ' Bata* *r-i.

I

Sum4u 2 : II

III

....................

....................

....................

....................

....................

....................

....................

....................

....................

....................

....................

....................

I

Sum4u ; : II

III

....................

....................

....................

....................

....................

....................

....................

....................

....................

....................

....................

....................

*iameter standar % . ....................................................

Ketirusan lubang silinder % .....................................................

Keausan maksimum % .....................................................

Teknik Kendaraan Ringan – SMK Bagimu Negeriku


9/12


Keovalan maksimum % .....................................................

Kesimulan % .....................................................

$ PEMERIKSAAN KOMPONEN TORAK

1. Kondisi torak se8ara visual .....................................................

&. Kondisi 8in8in torak se8ara visual .....................................................

'. Kondisi ena torak se8ara visual .....................................................

). Kondisi bantalan batang torak se8ara visual .....................................................

+. 0engukuran 8elah 5clereance7 diameter silinder dengan torak


Silin/r Diamtr t!rak +mm, la1 +clereance, S"*i7ika*i Limit

#%

&

'

Kesimulan % .....................................................

-. kur 8elah antara 8in8in torak dengan alurn$a


in.ink!m"r*i

Silin/r S"*i7ika*i+mm,

Bata* limit+mm,# % & '

N!$ #

N!$ %

Kesimulan % .....................................................

;. kur ketebalan ring torak


in.ink!m"r*i

Silin/r S"*i7ika*i+mm,# % & '

N!$ #

N!$ %

Kesimulan % .....................................................


10/12


+mm, +mm,# % & '

in.in

k!m"r*i N!$ #

in.in

k!m"r*i N!$ #

in.in min8ak "luma*

Kesimulan % .....................................................

=. kur 8elah oli ena torak dengan bushing-n$a


T!rak N!$Diamtr "na

+mm,

Diamtr 4u*1ing

+mm,

la1

5> ena ? > bushing7

S"*i7ika*i .la1

!li +mm,

#

%&

'

Kesimulan % .....................................................

1@. kur kebengkokan batang torak


Batang t!rak N!$ Ha*il ukur k4ngk!kan +mm, Bata* *r-i. +mm,

#

%

&

'

Kesimulan % .....................................................

11. kur keuntiran batang torak


Batang t!rak N!$ Ha*il ukur k"untiran +mm, Bata* *r-i. +mm,

#

%

&

'

Kesimulan % .....................................................

1&. kur 8elah oli antara bantalan dengan 2urnal batang torak 5crankpin7


Teknik Kendaraan Ringan – SMK Bagimu Negeriku 1@


11/12


Diamtr crank pinDiamtr /alam

4antalanla1

+clereance,Stan/ar +mm,

Bata* *r-i. +mm,

Silin/r

#

%

&

'

Kesimulan % .....................................................

D$ POROS ENGKOL DAN KELENGKAPANN;A

1. kur thrust clearance batang torak 5connecting rod 7 dan oros engkol


Ha*il ukur Bata* *r-i. *tan/ar/ +mm, Bata* mak*$ +mm,

...................... ...................... ......................

Kesimulan % ..................................

&. 0eriksa ketirusan dan kelon2ongan 2urnal utama oros engkol 5crankshaft main

journal 7


Sum4u Ha*il ukur +mm, Stan/ar +mm, Bata* *r-i. +mm,

2

;

Kesimulan % .....................................................

'. kur 8elah oli ada 2urnal utama oros engkol


Dmtr 3urnal utama

"!r!* ngk!l

Diamtr

4antalan

la1 < clereance

+ 3urnal utama 6 4antalan, Stan/ar +mm,Bata* *r-i.

+mm,

Kesimulan % .....................................................

). kur 8elah oli bantalan oros engkol


Ha*il ukur +mm, Stan/ar +mm, Bata* *r-i. +mm,

Teknik Kendaraan Ringan – SMK Bagimu Negeriku 11


12/12


Kesimulan % .....................................................

+. 0eriksa run out oros engkol 5crankshaft 7


Ha*il ukur Bata* *r-i. +mm,

...................... ......................

Kesimulan % .....................................................

-. kur 8elah aksial 5end play7 oros engkol


Ha*il ukur +mm, Stan/ar +mm, Bata* *r-i. +mm,

Kesimulan % .....................................................

SELAMAT BEKERJA

Teknik Kendaraan Ringan – SMK Bagimu Negeriku 1&

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