Northern Lights NL843NW3 Parts Manual

P843-3

For Models: M843NW3 and NL843NW3

PARTS CATALOG

Marine Generators | Marine Diesel Engines | Land-Based Generators

— CALIFORNIA —

Proposition 65 Warning:

Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

Northern Lights

4420 14th Avenue N.W.

Seattle, WA 98107

Tel: (206) 789-3880

Fax: (206) 782-5455

Printed in U.S.A.

PART NO.: P843-3 04/08

PARTS CATALOG

for Models

M843nw3 and NL843nw3

Please read thoroughly before attempting 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 and Flywheel Assembly ...........		2 - 3
Camshaft and Oil Pump.............................		4 - 5
Cylinder Head...........................................		6 - 7
Rocker Arm Assembly.............................	8 - 10
GROUP 2 - INTAKE & EXHAUST SYSTEM
Air Filter and Housing....................................		1
Air Filter and Mounting..................................		2
Exhaust Manifold and Muffler.........................		3
GROUP 3 - COOLING SYSTEM
Exhaust Manifold and Heat Exchanger........		0 - 1
Coolant Pump................................................		2
Coolant Pump, Fan, & Thermostat Housing......		3
Raw Water Pump and Mounting.................		4 - 5
Radiator and Guard...................................		6 - 7
GROUP 4 - FUEL SYSTEM
Injection Pump and Lines ..........................		0 - 1
Governor and Timing Gear Case.................		2 - 3
Fuel Filter and Piping................................		4 - 5
Fuel Line Connection.....................................		6
Fuel Injector..................................................		7
Fuel Feed Pump.............................................		8

GROUP 5 - ELECTRICAL SYSTEM
12 & 24 Volt Engine..................................	0 - 4
Alternator, Starter, and Flywheel Housing........	5
Alternator......................................................	6
Starter Assembly............................................	7
Alternator Assembly.......................................	8
Control Panels........................................	9 - 12
Belt Guard Assembly....................................	13
GROUP 6 - GASKET SETS
Gasket Kit............................................................	0
GROUP 7 - GEAR AND ADAPTER SETS
Not available at this time.
GROUP 8 - FRAME & MOUNTING
Base Frame Assembly....................................	1
GROUP 9 - ACCESSORIES
GROUP 9 - & OPTIONAL EQUIPMENT
PTO Adapter.................................................	1
Electric Clutch .............................................	2
Oil Drain Kit.................................................	3
Keel Cooling Conversion................................	4
Coolant Recovery Tank...................................	5
Remote Expansion Tank.................................	6
Low Coolant Level Switch/Gauge...................	7

Proprietary Information

This publication is the property of Alaska Diesel Electric, Inc.

It may not be reproduced in whole or in part without the written permission of Alaska Diesel Electric, Inc. © Alaska Diesel Electric, Inc. All rights reserved. Litho U.S.A. Publication number P843-3 04/08

P843-3 04/08

INTRODUCTION

Model Designation

ModelS INCLUDED

This manual covers the operating instructions for:

M843nw3 and NL843nw3, which both use the 843 engine.

Model Numbers

Model numbers give the unit's application, block model, aspiration, and RPM:

M - NL

843

N, W, 3

M - Northern Lights marine generator set

Model number of engine block

N - series designation

Bore

Cylinders

W - winding in gen. end

NL - Northern Lights industrial generator set

84 mm

3 - Tier III compliant

Northern Lights marine diesel generator set

Northern Lights industrial diesel generator

M843nw3

NL843nw3

with an 843 engine and a PX-312K2

set with an 843 engine and a PX-312K2

generator, Tier II compliant.

generator, Tier III compliant.

Serial Numbers

NORTHERN LIGHTS

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 for units with PXK generators

P843-3 04/08

							INTRODUCTION
							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.
						1	ELECTRICAL SYSTEM
					ALTERNATOR ASSEMBLY: M - NL843
		4				3	2
		6	7	8			9
5	KEY	PART NUMBER	QTY.	DESCRIPTION			SERIALNUMBER
	0	185046210	1	Alternator Assembly		10	-
	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			-
			13	P843-2 11/05	14
				P843-2 11/05
			11	5-2	12

REFERENCES:

1.Grouping section title.

2.Model designation of equipment that uses parts listed on this page.

3.Title and description of assembly.

4.Drawing numbers that correspond to key column numbers for parts identification.

5.Key column for locating parts shown on drawing.

6.Part number.

NOTE: a Arrows always point toward the front of the engine.

7.Quantity of parts used.

8.Description of each component part.

9.Serial number of unit the part fits.

10.Assembly or kit designated by Key 0 or ••/•.

11.Grouping index number.

12.Page number within the grouping index.

13.Manual title.

14.Page publication date.

P843-3 04/08

III

GROUP 1 – engine

Cylinder Block Assembly

P843-3 04/08

1 - 0

					GROUP 1 – engine

				Cylinder Block Assembly

KEY	PART NUMBER	QTY	DESCRIPTION		Serial Number
1	110101290	1	Cylinder Block Assembly (Marine, includes keys #3 - 18, 28)		-
	110101310	1	Cylinder Block Assembly (Industrial, includes keys #3- 18, 28)		-
3	064210025	1	Expansion Plug 25 mm		-
4	064210040	4	Expansion Plug 40 mm		-
5	198466010	2	Plug		-
6	198466020	4	Plug		-
7	198466030	4	Plug		-
8	165296220	1	Idle Gear Shaft Assembly		-
9	198517222	1	Bushing, Standard		-
	198517226	1	Bushing, Undersized 0.25 mm		-
	198517229	1	Bushing, Undersized 0.50 mm		-
10	040306203	1	Bearing		-
11	064100045	1	Expansion Plug		-
12	030500612	2	Dowel Pin		-
13	030500616	2	Dowel Pin		-
14	030501025	2	Dowel Pin		-
15	030309005	2	Spring Pin		-
16	012110820	2	Stud		-
17	012110635	1	Stud		-
18	012110660	1	Stud		-
19	110996820	1	Gasket		-
20	198636170	1	Oil Seal		-
21	198486770	1	Bushing		-
22	140546020	1	Filter Joint		-
23	24-03100	1	Oil Filter Assembly		-
24	120116160	6	Tappet		-
25	120456250	6	Push Rod		-
26	140036220	1	Relief Valve Assembly		-
27	052109078	1	O-ring		-
28	042309013	1	Needle Bearing		-
29	198736050	1	Drain Cock		-
30	068105250	1	Tube		-
31	052109113	2	O-ring		-
32	110756140	1	Dipstick Tube		-
33	011310612	1	Bolt		-
34	198416320	1	Dipstick		-
35	110707450	1	Oil Pan (Marine)		-
	110707390	1	Oil Pan (Industrial)		-
36	010109235	26	Bolt (Marine & Industrial)		-
37	010411212	2	Plug, Hex Head M12 x 1 (Industrial)		-
38	025100012	2	Seal Washer (Industrial)		-
39	18-72004	1	Oil Drain Hose		-
40	21-00003	1	Cap		-
41	23-78601	1	Bracket		-
42	12-00311	1	Capscrew, Hex Head 3/8- 16 x 3/4”		-
43	15-00302	1	Lock Washer 3/8”		-

P843-3 04/08

1 - 1

GROUP 1 – engine

Crankshaft and Flywheel Assembly

843NW3crankshaft

P843-3 04/08

1 - 2

					GROUP 1 – engine

				Crankshaft and Flywheel Assembly

KEY	PART NUMBER	QTY	DESCRIPTION		SERIAL NUMBER
1	115256580	1	Crankshaft Assembly (includes keys 2- 5)		-
2	115276200	1	Crankshaft Gear		-
3	034100508	1	Key		-
4	030509020	1	Dowel Pin		-
5	030300816	1	Spring Pin		-
6	110156171	1	Bearing Holder Assembly (includes keys 9 &12)		-
7	110156181	1	Bearing Holder Assembly (includes keys 9 &12)		-
8	110156191	1	Bearing Holder Assembly (includes keys 9 &12)		-
9	030500612	6	Dowel Pin		-
10	198517232	3	Bearing; Standard (Upper)		-
	198517236	3	Bearing; Undersized 0.25 mm (Upper)		-
	198517239	3	Bearing; Undersized 0.50 mm (Upper)		-
11	198517242	3	Bearing; Standard (Lower)		-
	198517246	3	Bearing; Undersized 0.25 mm (Lower)		-
	198517249	3	Bearing; Undersized 0.50 mm (Lower)		-
12	010109406	6	Bolt		-
13	010109667	2	Bolt		-
14	010700865	2	Bolt		-
15	199266200	2	Thrust Washer		-
16	115107970	3	Piston Ring Kit, Standard		-
17	115017541	3	Piston Kit, Standard (formerly #115017540)		-
18	115326220	3	Piston Pin		-
19	036500028	6	Snap Ring		-
20	115026251	3	Connecting Rod Assembly (includes keys 21-23)		-
21	198517265	3	Bushing		-
22	115176140	6	Connecting Rod Bolt		-
23	020109120	6	Nut		-
24	198517252	6	Bearing, Standard		-
	198517256	6	Bearing, 0.25 mm		-
	198517259	6	Bearing, 0.50 mm		-
25	115397390	1	Crankshaft Pulley (Marine)		-
	115396810	1	Crankshaft Pulley (Industrial)		-
26	020109086	1	Nut		-
27	115357040	1	Flywheel Assembly (includes key 28)		-
28	115376040	1	Ring Gear (109 Teeth)		-
29	010109341	6	Bolt		-

P843-3 04/08

1 - 3

GROUP 1 – engine

Camshaft and Oil Pump

843NW3oilpump

P843-3 04/08

1 - 4

					GROUP 1 – engine

				Camshaft and Oil Pump

KEY	PART NUMBER	QTY	DESCRIPTION		SERIAL NUMBER
1	120026740	1	Camshaft Assembly (includes keys 2- 6)		-
2	120016050	1	Cam Gear		-
3	034100508	1	Key		-
4	120736081	1	Gear		-
5	199216230	3	Spacer		-
6	040156304	1	Bearing		-
7	125256120	1	Slider		-
8	199566651	1	Plate		-
9	011310612	2	Bolt		-
10	165026230	1	Idle Gear Assembly (includes key #12)		-
11	199266270	1	Thrust Washer		-
12	198217760	1	Spring		-
13	140166250	1	Rotor		-
14	140116220	1	Oil Pump Cover		-
15	199286150	1	Shim; t = 0.10		-
	199286160	1	Shim; t = 0.15		-
	199286170	1	Shim; t = 0.20		-
	199286180	1	Shim; t = 0.50		-
16	198216720	1	Spring		-
17	199236540	1	Collar		-
18	036800010	1	Snap Ring		-
19	165166640	1	Front Plate - Marine (white)		-
	165166630	1	Front Plate - Industrial (blue)		-
20	165996540	1	Gasket		-
21	011300612	2	Bolt
22	052109076	1	O-ring		-
23	140986970	1	Oil Pipe		-
24	140406310	1	Suction Filter Assembly		-
25	011310612	2	Bolt		-

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1 - 5

GROUP 1 – engine

Cylinder Head

843NW3cylhead

P843-3 04/08

1 - 6

				GROUP 1 – engine

				Cylinder Head

KEY	PART NUMBER	QTY	DESCRIPTION	SERIAL NUMBER

1	111011260	1	Cylinder Head Assembly (Marine, includes keys 1-14)	-
	111011280	1	Cylinder Head Assembly (Industrial, includes keys 1-14)	-
2	064210018	5	Expansion Plug, 18 mm	-
3	064210030	2	Expansion Plug, 30 mm	-
4	064210025	4	Expansion Plug, 25 mm	-
5	064210010	2	Expansion Plug, 10 mm	-
6	120166350	3	Intake Valve	-
7	120176360	3	Exhaust Valve	-
8	120406070	3	Valve Guide Seal - Intake	-
9	198216700	6	Spring	-
10	120186080	6	Retainer	-
11	120226070	12	Cotter	-
12	120406050	3	Valve Guide Seal - Exhaust	-
13	120216041	6	Cap	-
14	110136400	3	Valve Seat - Intake	-
15	111147491	1	Head Gasket t=1.3 mm	-
	111147501	1	Head Gasket t=1.4 mm	-
16	111136480	11	Head Bolt	-
17	111136490	3	Head Bolt	-
18	195816340	1	Lifting Eye (Marine)	-
	195816030	1	Lifting Eye (Industrial)	-
19	011510816	1	Bolt	-

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1 - 7

GROUP 1 – engine

Rocker Arm Assembly

				843NW3rockerarm

KEY	PART NUMBER	QTY	DESCRIPTION	SERIAL NUMBER
1	120036990	1	Rocker Arm Assembly (Marine, includes keys 2-7, 16-17)	-
	120037070	1	Rocker Arm Assembly (Industrial, includes keys 2-7, 16-17)	-
2	120356131	3	Intake Rocker Arm	-
3	120356141	3	Exhaust Rocker Arm	-
4	199486220	6	Screw	-
5	020109076	6	Nut	-
6	120316281	1	Rocker Arm Shaft	-
7	198217170	2	Spring	-
8	011310635	2	Bolt	-
9	012109044	3	Stud	-
10	023100010	3	Nut	-
11		1	Oil Pressure Switch (see Electrical System)	-
12	140606941	1	Oil Pipe Assembly	-
13	140996260	4	Sealing Washer	-
14	198486780	1	Banjo Bolt	-
15	120996140	1	Gasket	-
16	052109076	1	O-ring	-
17	199280300	4	Shim	-
18	198487590	1	Banjo Bolt (Tapped 1/8 NPT)	-
19	064500010	1	Plug	-
			P843-3 04/08

1 - 8

GROUP 1 – engine

Rocker Arm Cover

Marine

					843NW3rockercover

KEY	PART NUMBER	QTY	DESCRIPTION		SERIAL NUMBER
1	111217780	1	Rocker Arm Cover		-
2	111996410	1	Gasket		-
3	110666210	1	Oil Stopper		-
4	110666060	1	Steel Wool		-
5	015600406	6	Screw		-
6	140996270	3	Gasket		-
7	024600010	3	Cap Nut		-
8	198436010	1	Cap		-
9	052100400	1	O-ring		-
10	110566080	1	Breather Valve		-
11	011100408	4	Bolt		-
12	011310660	2	Bolt		-
13	011310640	2	Bolt		-
14	190196630	1	Caution Plate		-

				P843-3 04/08

1 - 9

GROUP 1 – engine

Rocker Arm Cover

Industrial

					843NW3rockercoverind

KEY	PART NUMBER	QTY	DESCRIPTION		SERIAL NUMBER
1	111217820	1	Rocker Arm Cover		-
2	111996410	1	Gasket		-
3	110666210	1	Oil Stopper		-
4	110666060	1	Steel Wool		-
5	015600406	6	Screw		-
6	140996270	3	Gasket		-
7	024600010	3	Cap Nut		-
8	198436010	1	Cap		-
9	052100400	1	O-ring		-
10	110566080	1	Breather Valve		-
11	011100408	4	Bolt		-
12	011310660	2	Bolt		-
13	011310640	2	Bolt		-
14	190196630	1	Caution Plate		-
15	135996950	1	Gasket		-
16	135566550	1	Air Intake		-
17	011310620	2	Bolt		-

				P843-3 04/08

1 - 10

GROUP 2 – intake and exhaust

Air Filter and Housing

Marine

				A-10262, A-10312 / C-5444

KEY	PART NUMBER	QTY	DESCRIPTION		SERIAL NUMBER
1	10-22004	1	Connector, Air Inlet		-
2	135996950	1	Gasket, Air Intake Mounting		-
3	12-01131	2	Capscrew, Hex Head M6 x 1.0 x 20 mm		-
4	15-99131	2	Wave Washer M6 S/S		-
5	18-22002	1	Hose 1-3/4" ID x 2-1/4"		-
6	19-01028	2	Hose Clamp #28		-
7	10-22006	1	Front Cover, Air Filter Housing		-
8	28-22001	1	Plate, Air Filter Baffle		-
9	24-22009	1	Element, Air Filter		-
10	24-22011	1	Screen, Air Filter Retaining		-
11	10-22003	1	Rear Cover, Air Filter Housing		-
12	12-09132	4	Capscrew, Hex Head M6 x 1.0 x 85 mm S/S		-
13	15-99131	4	Wave Washer M6 S/S		-
14	23-22001	1	Bracket, Air Filter Support		-
15	12-09751	4	Capscrew, Hex Head M8 x 1.25 x 16 mm S/S		-
16	15-99707	4	Wave Washer M8 S/S		-
17	18-22001	1	Hose, Air Intake (Molded)		-
18	19-01028	1	Hose Clamp #28		-
19	19-70028	1	Cushion Clamp #28		-
20	12-01102	1	Capscrew, Hex Head M6 x 1.0 x 16 mm S/S		-
21	15-01134	1	Flat Washer, M6 S/S		-

			P843-3 04/08

2 - 1

GROUP 2 – intake and exhaust

Air Filter and Mounting

Industrial

				843NW3aircleaner

KEY	PART NUMBER	QTY	DESCRIPTION	SERIAL NUMBER
1	135016300	1	Air Filter Assembly (includes keys #13 - 16)	-
2	19-00036	2	Clamp #36	-
3	135597860	1	Hose	-
4	135876600	1	Bracket	-
5	135976420	1	Bracket	-
6	195816100	1	Lifting Eye	-
7	011510820	2	Bolt	-
8	011510816	4	Bolt	-
9	011510825	1	Bolt	-
10	026100008	4	Washer	-
11	011510825	2	Bolt	-
12	011510820	1	Bolt	-
13	135326197	1	Housing	-
14	24-27302	1	Element	-
15	135326199	1	Cover Assembly	-
16	314531163	1	Valve	-

			P843-3 04/08

2 - 2

GROUP 2 – intake and exhaust

Exhaust Manifold and Muffler

Industrial

				843NW3muffler

KEY	PART NUMBER	QTY	DESCRIPTION	SERIAL NUMBER
1	314011660	1	Muffler Assembly (includes keys #2 - 8)	-
2	011140612	10	Bolt	-
3	135406230	1	Muffler Element	-
4	135996900	1	Gasket	-
5	135616701	1	Exhaust Manifold	-
6	135996550	1	Gasket	-
7	314120300	1	Flange	-
8	011310620	4	Bolt	-
9	135996590	1	Gasket	-
10	011310670	4	Bolt	-
11	012110670	2	Stud	-
13	023100006	2	Nut	-
14	135606340	1	Exhaust Elbow (can use #27-33102)	-
	27-33103	1	Exhaust Elbow 1-1/2 NPT	-
15	314410020	1	Clamp	-
16	026100008	2	Washer	-
17	027100008	1	Spring Washer	-
18	020900008	1	Nut	-
19	010310865	1	Bolt	-

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