Northern Lights NL673L3 Parts Manual
P673-2
For Models: M673L2, M673L3, M673LD2,
M673LD3, NL673L2, and NL673L3
PARTS CATALOG
Marine Generators | Marine Diesel Engines | Land-Based Generators
— CALIFORNIA —
Proposition 65 Warning:
Diesel engine exhaust and some of its constitu-
ents are known to the State of California to cause
cancer, birth defects, and other reproductive harm.
www.northern-lights.com
4420 14th Ave. NW., Seattle WA 98107
Tel: (206) 789-3880 • 1-800-762-0165 •
Fax: (206) 782-5455
PARTS CATALOG
for Models M673L2, M673L3, M673LD2,
M673LD3, NL673L2, & NL673L3
Please read thoroughly before aempting to use this manual:
Table of Contents ............................................................................................................................................ I
Model Designation & Serial Numbers .............................................................................................................. II
Reading a Parts Page ..................................................................................................................................... III
Table of Contents
GROUP 1 - ENGINE
Cylinder Block Assembly ......................... 0 - 1
Crankshaft & Piston .................................. 2 - 3
Oil Pump & Strainer ...................................... 4
Camshaft ...................................................... 5
Cylinder Head & Rocker Arm Assembly ..... 6 - 7
Rocker Arm Cover .................................... 8 - 9
GROUP 2 - AIR INTAKE SYSTEM
Air Filter & Mounting ............................... 1 - 2
Mufer ......................................................... 3
GROUP 3 - COOLING SYSTEM & EXHAUST
Exhaust Manifold / Expansion Tank ...........0 - 2
Thermostat & Housing ................................... 3
Coolant Pump ..........................................4 - 5
Raw Water Pump ........................................... 6
Radiator & Mounting ................................ 7 - 8
Coolant Recovery Tank .................................. 9
GROUP 4 - FUEL SYSTEM
Injection Pump & Lines ...........................0 - 1
Governor & Timing Gear Case .................. 2 - 3
Fuel Filter & Mounting ................................. 4
Injector Assembly .......................................... 5
Injection Pump Assembly ............................... 6
GROUP 5 - ELECTRICAL SYSTEM
12 Volt Engine .......................................... 1 - 2
Flywheel Housing & Starter Mounting ............ 3
Alternator & Mounting .................................. 4
Alternator Assembly ...................................... 5
Starter Motor Assembly ................................. 6
Control Panels .......................................... 7 - 9
Belt Guard .................................................. 10
GROUP 6 - GASKET SETS
Gasket Sets ..........................................................1
GROUP 7 - GENERATOR
Generator Components ................................. 0 - 1
GROUP 8 - FRAME & MOUNTING
Base Frame Assemblies ............................. 0 - 1
GROUP 9 - ACCESSORIES
GROUP 9 - & OPTIONAL EQUIPMENT
Oil Drain Kit ................................................. 0
Remote Expansion Tank ................................. 1
Sound Enclosure ............................................ 2
Proprietary Information
This publication is the sole property of Alaska Diesel Electric, Inc.
It may not be reproduced in whole or part without the expressed written permission of Alaska Diesel Electric, Inc.
© Alaska Diesel Electric, Inc. 2008. All rights reserved. Litho U.S.A. Publication number: P673-2 01/08
P673-2 01/08
I
Model Designation
MODELS INCLUDED
This manual covers the operating instructions for:
M673L2, M673L3, M673LD2, M673LD3, NL673L2, and NL673L3 which use
the 673 engine.
Model Numbers
Model numbers give the unit's application, block model, aspiration, and RPM:
M - NL 673 LD, L, 2, 3
M - Northern Lights marine generator set
NL - Northern Lights industrial generator set
M 673L2
NL 673L2
Northern Lights marine diesel generator set
=
with a 673 engine and a TF-276D generator,
long stroke, Tier II.
Northern Lights industrial diesel generator set
=
with a 673 engine and a TF-276D generator,
long stroke, Tier II.
Model number of engine block
Bore Cylinders
67 mm 3
M 673L3
NL 673L3
L - Long Stroke
2 - Tier II
3 - Tier III
Northern Lights marine diesel generator
=
set with a 673 engine and a TF-276D
generator, long stroke, Tier III.
Northern Lights industrial diesel generator
=
set with a 673 engine and a TF-276D
generator, long stroke, Tier III.
Serial Numbers
Your set has three serial numbers: 1 an engine number stamped on the block, 2 a generator
plate, and 3 a generator set plate. Use the serial number on the generator set plate when ordering
parts or in correspondence. The generator set plate is found on the service side of the generator
and resembles the drawing below.
Generator Set Serial Number
P673-2 01/08
II
Reading a Parts Page
IMPORTANT:
Before selecting parts, be sure that you are choosing parts from the correct page.
Check the model designation at the page top.
Do not use this illustration for parts purchasing.
ELECTRICAL SYSTEM
1
ALTERNATOR ASSEMBLY: M - NL673
4
6
5
KEY PART NUMBER QTY. DESCRIPTION SERIALNUMBER
0 185046210 1 Alternator Assembly 1 185446219 1 Flywheel, complete 2 185446217 1 Plate, complete 3 185716200 1 Plate 4 185446218 1 Stator, complete 5 040126210 2 Bearing 6 020210010 1 Nut 7 027100010 1 Spring washer 8 026100010 1 Washer 9 185446220 1 Clamp 10 015140408 1 Screw 11 015140425 2 Screw 12 199236510 1 Collar -
7
8 9
10
3
2
13
P673 06/96
5-2
14
1211
REFERENCES:
1. Grouping section title. 7. Quantity of parts used.
2. Model designation of equipment that uses parts 8. Description of each component part.
listedonthispage. 9. Serialnumberofunitthepartts.
3. Title and description of assembly. 10. Assembly or kit designated by Key 0 or ••/•.
4. Drawing numbers that correspond to key 11. Grouping index number.
columnnumbersforpartsidentication. 12. Pagenumberwithinthegroupingindex.
5. Key column for locating parts shown on drawing. 13. Manual title.
6. Part number. 14. Page publication date.
NOTE: aArrows always point toward the front of the engine.
P673-2 01/08
III
GROUP 1 – ENGINE
Cylinder Block Assembly
P673-2 01/08
1 - 0
673L2cylblock
GROUP 1 – ENGINE
Cylinder Block Assembly
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 110100740 1 Cylinder Block - Marine Application (includes keys #2- 20) 110100730 1 Cylinder Block - Industrial Application
2 064200015 1 Expansion Plug 15 mm 3 064200018 2 Expansion Plug 18 mm 4 064200035 4 Expansion Plug 35 mm 5 198466030 5 Blank Plug 6 198466050 1 Blank Plug 7 198466010 4 Blank Plug 8 165296162 1 Idle Gear Shaft 9 198517301 1 Bushing, standard 198517305 1 Bushing, undersize 0.25 mm 198517308 1 Bushing, undersize 0.50 mm 10 040106203 1 Bearing 11 064100045 1 Expansion Plug 12 042303015 1 Bearing 13 030500512 2 Dowel Pin 14 030500616 2 Dowel Pin 15 030500820 2 Dowel Pin 16 030309005 2 Lock Pin 17 012110620 2 Stud M6 x 1.0 x 20 mm 18 012110635 1 Stud 19 012110660 1 Stud 20 036509005 1 Retaining Ring 21 198636080 1 Oil Seal 22 198736050 1 Drain Cock 23 140546020 1 Filter Joint 24 24-08001 1 Oil Filter 25 110756070 1 Dipstick Tube 26 052109113 2 O-ring -
27 011310612 1 Bolt 28 198416350 1 Dipstick 29 120116100 5 Tappet
-
30 120456320 6 Push Rod 31 140036220 1 Relief Valve Assembly 32 052109078 1 O-ring 33 068115200 1 Tube 34 120116180 1 Tappet
35 110706770 1 Oil Pan
110706691 1 Oil Pan
(#1 Exhaust only) -
(Marine) -
(Industrial) -
36 110996760 1 Gasket 37 010109235 18 Bolt 38 18-72004 1 Hose Assembly
39 21-00003 1 Cap
(Marine only) -
40 025100012 1 Seal Washer
41 010411212 1 Plug M12 x 1.25
(Marine only) -
(Industrial only) -
(Industrial only) -
(includes keys #2- 20) -
P673-2 01/08
1 - 1
GROUP 1 – ENGINE
Crankshaft and Pistons
P673-2 01/08
1 - 2
FIG: 1-2
GROUP 1 – ENGINE
Crankshaft and Pistons
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 115256890 1 Crankshaft (includes keys #2- 3) 2 115276210 1 Crankshaft Gear 3 030509020 1 Dowel Pin 5 110156440 1 Bearing Holder Assembly
6 010810845 4 Bolt 7 030500612 6 Dowel Pin 8 110156450 1 Bearing Holder Assembly
9 110156460 1 Bearing Holder Assembly
10 198517332 2 Bearing, Standard Upper
198517336 2 Bearing, undersize 0.25 mm
198517339 2 Bearing, undersize 0.50 mm
11 198517342 2 Bearing, Standard Lower
198517346 2 Bearing, undersize 0.25 mm
198517349 2 Bearing, undersize 0.50 mm
12 198517103 1 Bearing, Standard Upper 198517107 1 Bearing, undersize 0.25 mm
198517630 1 Bearing, undersize 0.50 mm
13 198517112 1 Bearing, Standard Lower 198517116 1 Bearing, undersize 0.25 mm
198517119 1 Bearing, undersize 0.50 mm
14 011510850 2 Bolt 15 010700845 2 Bolt 16 115104050 3 Ring Kit, standard 17 115017630 3 Piston, standard
(includes key #16) -
18 115326260 3 Piston Pin 19 036500019 6 Snap Ring 20 115026350 3 Connecting Rod Assembly
21 198517325 3 Bushing 22 115176130 6 Connecting Rod Bolt 23 020109103 6 Nut 24 198517312 6 Bearing, standard
(formerly #198517311) -
198517316 6 Bearing, undersize 0.25 mm
198517319 6 Bearing, undersize 0.50 mm
25 115356930 1 Flywheel, complete 26 115376040 1 Ring Gear
(includes key #26) -
27 010109330 4 Bolt 28 020800018 1 Nut 29 115396780 1 Crankshaft Pulley
115396751 1 Crankshaft Pulley
(Marine) -
(Industrial) -
30 40-02002 1 Drive Belt 31 010810850 1 Bolt 32 034100508 1 Key 33 012111025 4 Stud M10 x 1.5 x 25 mm
(includes keys #6- 7) -
(includes keys #6- 7) -
(includes key #7 & 31) -
(formerly #198517331) -
(formerly #198517335) -
(formerly #198517338) -
(formerly #198517341) -
(formerly #198517345) -
(formerly #198517348) -
(formerly #198517106) -
(formerly #198517109) -
(formerly #198517115) -
(formerly #198517118) -
(includes keys #21 - 23) -
(formerly #198517315) -
(formerly #198517318) -
(can use 13-05001) -
P673-2 01/08
1 - 3
GROUP 1 – ENGINE
Oil Pump and Strainer
673L2oilpump
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 165026110 1 Idle Gear Assembly (includes key #2) 2 198216821 1 Spring 3 199266180 1 Thrust Washer 4 140166130 1 Rotor 5 140116140 1 Oil Pump Cover 6 199286150 1 Shim Set, t=0.10 199286160 1 Shim Set, t=0.15 199286170 1 Shim Set, t=0.20 199286180 1 Shim Set, t=0.50 7 198216720 1 Spring 8 199236540 1 Collar 9 036800010 1 Snap Ring 10 165166280 1 Front Plate
165166270 1 Front Plate
11 165996490 1 Gasket 12 011310612 3 Bolt 13 140986590 1 Oil Pipe 14 052109076 1 O-ring 15 140406570 1 Suction Filter 16 011310612 2 Capscrew, Hex Head with Washer M6 x 1.0 x 12 mm -
(Marine) -
(Industrial) -
P673-2 01/08
1 - 4
GROUP 1 – ENGINE
Camshaft
673L2camshaft
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 120026810 1 Camshaft Assembly (includes keys #2 - 6) 2 120016060 1 Cam Gear 3 120736081 1 Gear 4 199261230 3 Spacer 5 040109059 1 Bearing 6 034100508 1 Key 7 125256120 1 Slider Assembly 8 199566651 1 Plate 9 011310612 1 Bolt 10 010700610 1 Bolt -
P673-2 01/08
1 - 5
GROUP 1 – ENGINE
Cylinder Head
673L2cylhead
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 111010710 1 Cylinder Head Assembly (Marine, includes keys #2-10) 111010740 1 Cylinder Head Assembly
(Industrial, includes keys #2-10) -
2 064200018 2 Expansion Plug, 18 mm 3 064210022 6 Sealing Cap 4 120166370 3 Intake Valve 5 120176290 3 Exhaust Valve 6 110136445 3 Intake Valve Seat 7 120406080 6 Valve Guide Seal 8 198217070 6 Spring 9 120186100 6 Retainer 10 120226080 12 Valve Keeper 11 120216130 6 Valve Cap 12 111147650 1 Head Gasket, Thickness= 1.2 mm 111147660 1 Head Gasket, Thickness= 1.3 mm 13 111136460 11 Head Bolt 14 111136470 3 Head Bolt 15 195816650 1 Lifting Eye
195816030 1 Lifting Eye
16 011510820 1 Bolt
011510816 1 Bolt
(Marine) -
(Industrial) -
(Marine) -
(Industrial)
17 195816390 1 Lifting Eye (Industrial) 23-08001 1 Lifting Eye
18 1 Bolt
19 1 Washer
(Marine) -
(Marine, not available separately) -
(Marine, not available separately) -
P673-2 01/08
1 - 6
GROUP 1 – ENGINE
Rocker Arm Assembly
673L2rockerarm
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 120037150 1 Rocker Arm Assembly (Marine, includes keys #2- 9,18, 21) 120037180 1 Rocker Arm Assembly
2 120366330 3 Rocker Arm, Exhaust 3 120366320 3 Rocker Arm, Intake 4 198217660 2 Spring 5 120316320 1 Rocker Arm Shaft 6 199486220 6 Screw 7 020109076 6 Nut 8 198436370 1 Plug 9 052100100 1 O-ring 10 023100006 3 Nut 11 120996200 1 Gasket 12 1 Oil Pressure Switch
13 140607410 1 Oil Pipe 14 140996260 4 Gasket 15 198486780 1 Banjo Bolt 16 012109259 3 Stud Bolt 17 011310625 3 Bolt 18 030300416 2 Spring Pin 19 198487590 1 Banjo Bolt (Tapped 1/8 NPT) 20 064500010 1 Plug 21 012110620 2 Stud Bolt -
(Industrial, includes keys #2- 9,18, 21) -
(see Electrical System) -
P673-2 01/08
1 - 7
GROUP 1 – ENGINE
Rocker Arm Cover
Marine Application
673L2rockerarmcovermarine
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 111217980 1 Rocker Arm Cover 2 111996470 1 Gasket
3 110666240 1 Oil Stopper 4 110666250 1 Filter 5 015600406 4 Screw 6 140996380 3 Gasket 7 024600006 3 Cap Nut 8 198436010 1 Cap 9 052100400 1 O-ring 10 110566070 1 Breather Valve 11 011100408 4 Bolt 12 011310670 3 Bolt 13 023100006 2 Nut 14 012110620 2 Stud Bolt -
-
P673-2 01/08
1 - 8
GROUP 1 – ENGINE
Rocker Arm Cover
Industrial Application
673L2rockerarmcover
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 111210150 1 Rocker Arm Cover 2 111996470 1 Gasket
3 110666240 1 Oil Stopper 4 110666250 1 Filter 5 015600406 4 Screw 6 140996380 3 Gasket 7 024600006 3 Cap Nut 8 198436010 1 Cap 9 052100400 1 O-ring 10 110566070 1 Breather Valve 11 011100408 4 Bolt 12 011310670 3 Bolt 13 023100006 2 Nut 14 012110620 2 Stud Bolt 15 135996750 1 Gasket 16 135566630 1 Air Intake 17 011310620 2 Bolt -
-
P673-2 01/08
1 - 9
GROUP 2 – INTAKE & EXHAUST SYSTEM
Air Filter Assembly and Mounting
Marine Application
A-10916A/ C-5743
KEY PART NUMBER QTY DESCRIPTION SERIAL NUMBER
1 10-28002 1 Air Filter Housing 2 135996750 1 Gasket, Air Intake 3 12-09145 1 Capscrew, Hex Head M6 x 1.0 x 150 mm S/S 4 12-09131 1 Capscrew, Hex Head M6 x 1.0 x 20 mm S/S 5 15-01134 2 Flat Washer M6 S/S 6 24-28004 1 Screen, Air Filter Element 7 24-28003 1 Air Filter Element 8 10-28602 1 Cover, Air Filter Housing 9 12-09131 4 Capscrew, Hex Head M6 x 1.0 x 20 mm S/S 10 15-01134 4 Flat Washer M6 S/S 11 18-28002 1 Hose, Air Intake 12 23-28001 1 Bracket, Air Intake Hose Support 13 12-00776 2 Capscrew, Hex Head M8 x 1.25 x 20 mm S/S 14 19-70016 1 Cushion Clamp #16 15 12-01102 1 Capscrew, Hex Head M6 x 1.0 x 16 mm S/S 16 15-01134 1 Flat Washer M6 S/S -
P673-2 01/08
2 - 0
GROUP 2 – INTAKE & EXHAUST SYSTEM
Notes
P673-2 01/08
2 - 1
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