Subaru Robin Power Products EX40 User Manual

PARTS MANUAL

Models

EX40 ENGINES

PUB-EP6516

Rev. 08/08

940 Lively Blvd. • Wood Dale, IL 60191 • Phone: [phone] • Fax: [phone]

e-mail: [e-mail] • www.robinamerica.com

© Copyright 2008 Robin America, Inc.

HOW TO USE THIS MANUAL

Robin engines are identified by MODEL, SPECIFICATION, and CODE NUMBER. For each model there may be many different versions called specifications. Each specification will be unique in some way. The difference may only be the paint color or it may have a different type of PTO or some other significant difference.

In order the identify the correct service part number, it is important to confirm the specification and code numbers for your engine. The specification and code number together are know as the PRODUCT NUMBER.

All Robin 4 cycle engines have a Product Number label similar to the label illustrated below.

The Product Number Label has a 15 digit alphanumeric string that consists of the SPECIFICATION (SPEC) number (11 digits) and the CODE number (4 digits). Please note the illustration below:

E X 4 0 0 X X X X

SPEC NO. (11 digits)		CODE NO. (4 digits)

PRODUCT NO. (15 digits)

MANUAL LAYOUT

1	4
2	3

1	6	7	9	2
3
5
4				8

1.	SECTION NAME	Parts are broadly classified according to their functions.
		Refer to the Group Index (table of contents) for respective section name.
2.	FIG. No.	The FIG. number indexes the reference and part numbers to the illustration. Figure numbers
		that vary only in the tens place (i.e..: 700 and 710) are in a group of the same section
		(i.e..:Electrical Device Group).
3.	REF. No .	The Reference number identifies the part illustration with the corresponding part number in the
		part list.
4.	SUBASSEMBLY	SUBASSEMBLY parts of part assembly are listed below the assembly part. The subassembly
		part reference number is indicated by the number led by "-" such as "-1", "-2".
5.	PART NUMBER	It is the number assigned for sales unit. Use the PART No. when making an order.
6.	DESCRIPTION	It is designation of the part.
7.	QTY.	Quantity of each part used for each product.
8.	REMARKS	This gives a distinctive feature and/or a supplementary comment for the type, the specification,
		and the part concerned. It also shows part number(s) interchangeable for the part.
9.	FROM-TO	This section shows the CODE No. to indicate the history of progress in which improved parts
		have been introduced in the product. The FROM-TO CODE No. helps to identify PART No.
		being employed in the product concerned. See the examples below:

-The part is used in the product irrespective of CODE No.

2101-		The part is used in the products with CODE No. of 2101 and after this number.
-	2100	The part is used in the products with CODE No. of 2100 and before this number.

GROUP INDEX
Group Name	Page
CRANKCASE GROUP...............................................................................	6
CRANKSHAFT GROUP .............................................................................	8
INTAKE and EXHAUST GROUP..............................................................	10
GOVERNOR GROUP ..............................................................................	14
COOLING and STARTING GROUP.........................................................	16
FUEL, LUBRICANT GROUP....................................................................	18
CARBURETOR GROUP ..........................................................................	20
ELECTRIC DEVICE GROUP ..................................................................	22
ACCESSORY GROUP.............................................................................	24

INDEX OF DESCRIPTION SYMBOLS

SYMBOL	DESCRIPTION	SYMBOL	DESCRIPTION
AY ...........................	ASSEMBLY	P= ...........................	PITCH (in mm)
CP...........................	COMPLETE	P.T.O. (PTO) ...........	POWER TAKE OFF
EX...........................	EXPORT (from Japan)	REF.........................	REFERENCE
FIG..........................	FIGURE	R.H. (RH)................	RIGHT HAND SIDE
FR...........................	FRONT	RR. .........................	REAR
" ..............................	INCH	STD. .......................	STANDARD
INCL. ......................	INCLUDE	SW..........................	SWITCH
~L............................	LITER	T= ...........................	THICKNESS (in mm)
L= ...........................	LENGTH (in. mm)	UN ..........................	UNIT
L.H. (LH).................	LEFT-HAND SIDE	U.S..........................	UNDER SIZE
MECH.....................	MECHANICAL	~V ...........................	VOLTAGE
NO (NON)...............	NONE	~W ..........................	WATT
OPT.........................	OPTIONAL	W/ ...........................	WITH
O.S. ........................	OVER SIZE	W/O ........................	WITHOUT

SECTION 1 CRANKCASE GROUP

FIG. 100

620

280

270

220

	610
70	20	28
	27

26

60

690

680

710

631 630

	250
	260		10
	210	75	30
		50
	230	40
	240
		45

700

90

300

80

EX40

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08-08

SECTION 1		CRANKCASE GROUP
Ref.	Part Number	Description	Qty	Remarks	To-From	Fig.
10	20B-10102-11	Crankcase Cp	1			100
20	20B-14202-03	Valve Guide	2			100
26	132-07AA0-50	Seal, intake valve	1			100
27	056-51000-50	Clip	1			100
28	263-35341-03	Retainer Plate	1			100
30	044-03500-90	Oil Seal	1			100
40	060-03502-40	Ball Bearing	1			100
45	X60-01500-11	Ball Bearing	1			100
50	277-15011-03	Pipe Knock	2			100
60	010-50603-51	Stud, intake	2			100
70	010-50802-90	Stud, exhaust	2			100
75	044-00800-10	Oil Seal	1			100
80	040-11400-30	Plug	1			100
90	021-11400-20	Gasket	1			100
210	20B-11002-11	Main Bearing Cover Cp	1			100
220	044-03500-90	Oil Seal	1			100
230	060-03502-40	Ball Bearing	1			100
240	X60-01500-11	Ball Bearing	1			100
250	20B-45003-01	Governor Gear Cp	1			100
260	277-41901-03	Governor Sleeve	1			100
270	224-63601-03	Oil Gauge	1			100
280	021-32000-50	Gasket	1			100
300	011-00803-40	Flange Bolt	8			100
610	20B-13001-01	Cylinder Head Cp	1			100
620	20B-15001-03	Gasket, cylinder head	1			100
630	011-01000-40	Flange Bolt	4			100
631	001-04083-50	Flange Bolt	2			100
680	20B-15501-01	Rocker Cover Cp	1			100
690	20B-16001-03	Gasket, rocker cover	1			100
700	031-00600-20	Dowel Pin	2			100
710	011-00600-20	Flange Bolt	4			100
960	20B-99001-07	Gasket Set	1			100

EX40

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08-08

SECTION 2 CRANKSHAFT GROUP

FIG. 200

310

320

360 370

350

380

70

10

390

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08-08

SECTION 2		CRANKSHAFT GROUP
Ref.	Part Number	Description	Qty	Remarks	To-From	Fig.
10	20B-20901-01	Crankshaft Cp	1	1" Key		200
	20B-21201-01	Crankshaft Cp	1	7/8" Taper		200
	20B-21001-01	Crankshaft Cp	1	1" Pump		200
70	005-32054-01	Woodruff Key	1			200
310	20B-22501-00	Connecting Rod Ay	1			200
320	001-05084-00	Connecting Rod Bolt	2			200
350	263-23301-33	Piston Pin	1			200
360	20B-23401-H3	Piston	1	Std		200
360	20B-23403-H3	Piston	1	Oversize 0.25mm		200
360	20B-23404-H3	Piston	1	Oversize 0.50mm		200
370	20B-23501-07	Piston Ring Set	1	Std		200
370	20B-23502-07	Piston Ring Set	1	Oversize 0.25mm		200
370	20B-23503-07	Piston Ring Set	1	Oversize 0.50mm		200
380	056-52100-20	Clip	2			200
390	20B-24101-03	Balancer Shaft	1			200

EX40

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08-08

SECTION 3 INTAKE and EXHAUST GROUP

FIG. 300

310

350

365

340

241

80

90

290

60

70

95

170

25

27

320

361

315

225

231

317

210

240

230

220

150

37 35 34 38	160
	163

166

10

EX40

08-08