M18-057-E

RESTRICTED REMOTE MONITORING & MEeS GROUP ENERGY SOLUTION DEPARTMENT

BULLETIN No.:

ENGINE ENGINE & ENERGY ENERGY DIVISION DIVISION

MODELS:

S6A3

GROUP:

Cylinder Head, Turbocharger, Fuel System

DATE:

March 2018

SERVICE BULLETIN

M18-057-E (1/2)

This document contains trade secrets and know-hows of Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (Hereinafter referred as MHIET.) The whole intellectual property right including the trade secret and copyright belongs to MHIET. Any duplication, use, or disclosure or  provision of this document to a third party for the purpose other than the after servicing of MHIET engine without prior consent of MHIET is strictly prohibited.

SUBJE SUBJECT: CT:

Coun Counter termea measu sures res aga agains instt Black Black Smoke Smoke in in Medium Medium-sp -spee eed d Operat Operation ion of of S6A3-T S6A3-T2M( 2M(P)TK P)TK3L 3L Engin Engine e

1. Purpose The specs of cylinder head, turbocharger, and injection pump for S6A3-T2M(P)TK3L engine are changed to improve the black smoke in medium-speed operation. The all changed parts are subject to the application to the exhaust gas regulations, and not interchangeable with the old parts. Pay special attention for the identification of new and old parts.

2. New and Old Parts NEW

 Ref. No.

Part name Part No.

Qt.

1

CYLI CYLIND NDER ER HEAD HEAD AS ASSY SY

35A01-06410

6

2

TURBOCHARGER ASSY

49382-01070

1

3

INJ. PUMP GEN. ASSY

48272-03031

1

    e   g   n   y    t   a   i    l    h   i   c   b   r   a   e    t   n    I

S-2

OLD Remarks Part No.

Qt.

32601-10024

6

49182-06590

1

48272-02011

1

Note: 1. See the part number number on the attached name plate plate for the identification identification of Ref. No. 2 and 3 new and old old parts. 2. See section 2 for the identification of Ref. No. 1 new and old parts. 3. The engine containing the parts of this change can be identified with the last symbol of the model name on the name plate. See section 3 for details. 3. Identification of Ref. Ref. No. 1 CYLINDER CYLINDER HEAD HEAD ASSY

Intake side

● Cylinder head top face

"A" stamped only on the new part

Stock No. "32601-10 "32601-10201" 201" raised on both both the new and old parts

Exhaust side  APPLICABLE  APPLICABLE No.:

E/# 37803 - up

MODIFIED No.:

E/# 37803 - up

DATE OF SERVICE PARTS AVAILABLE: RELATED SERVICE BULLETIN: INTERCHANGEABILITY: R=(NEW )

(OLD)

1=Out of Supply.

Please pass to:

S=(NEW )

(OLD)

2=Yes as an assembly.

DEPT. MANAGER

N=(NEW )

(OLD)

3=Yes as a single part.

SECT. MANAGER

EO - No. 35A0-B456

MECHANICS or CLERKS

M18-057-E (2/2)

4. Engine Name Plate and Injection Timing ● The last symbol of engine model name indicates the changed specification which the exhaust gas regulations

applied to. Be sure to identify with the new spec symbol

New spec

 Engine type

, and old

Old spec

or

.

 Marine gear attached

  S6A3-T2MTK3L-7

S6A3-T2MTK3L-2

Yes

S6A3-T2MTK3L-8

S6A3-T2MTK3L-4

No

  S6A3-T2MPTK3L-7

S6A3-T2MPTK3L-2

Yes

S6A3-T2MPTK3L-8

S6A3-T2MPTK3L-4

No

 Injection timing （BTDC）  T/C type

or

18° TD13M1-50QHRC-47

20° TD13L4-50QRC-47

4-1 Engine Name Plate for Domestic Use The name plate shows that for S6A3-T2MTK3L-7 for example. （New spec）

（Old spec)

4-2 Engine Name Plate for Overseas Use The name plate shows that for S6A3-T2MPTK3L-7 for example. （New spec）

（Old spec)

Sales site Domestic Overseas