Robin EX27 PARTS LIST

PARTS MANUAL

Models

EX27 ENGINE

PUB-EP1679 Rev. 07/05

940 Lively Blvd. • Wood Dale, IL 60191 • Phone: 630-350-8200 • Fax: 630-350-8212

e-mail: sales@robinamerica.com • www.robinamerica.com

HOW TO USE THIS MANUAL

Robin engines are identiﬁ ed by MODEL, SPECIFICATION, and CODE NUMBER. For each model there may be many different versions called speciﬁ cations. Each speciﬁ cation will be unique in some way . The dif ference may only be the paint color or it may have a different type of PTO or some other signiﬁ cant difference.

In order the identify the correct service part number, it is important to conﬁ rm the speciﬁ ca- tion and code numbers for your engine. The speciﬁ cation 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 2 7 0

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

PRODUCT NO. (15 digits)

EX27 - 3 - 07-05

X X X X

MANUAL LAYOUT

1

2

1

6

4

3

7

9

2

3

5 4

8

1. SECTION NAME Parts are broadly classiﬁ ed 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 identiﬁ es 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 speciﬁ cation,

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.

EX27 - 4 - 07-05

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

AY ...........................ASSEMBLY

CP ...........................COMPLETE

EX ...........................EXPORT (from Japan)

FIG. .........................FIGURE

FR. ..........................FRONT

" ..............................INCH

INCL. ......................INCLUDE

~L ............................LITER

L= ...........................LENGTH (in. mm)

L.H. (LH) .................LEFT-HAND SIDE

MECH .....................MECHANICAL

NO (NON) ...............NONE

OPT.........................OPTIONAL

O.S. ........................OVER SIZE

SYMBOL DESCRIPTION

P= ...........................PITCH (in mm)

P.T.O. (PTO) ...........POWER TAKE OFF

REF. ........................REFERENCE

R.H. (RH) ................RIGHT HAND SIDE

RR. .........................REAR

STD. .......................STANDARD

SW ..........................SWITCH

T= ...........................THICKNESS (in mm)

UN ..........................UNIT

U.S..........................UNDER SIZE

~V ...........................VOLT AGE

~W ..........................WA TT

W/ ...........................WITH

W/O ........................WITHOUT

EX27 - 5 - 07-05

SECTION 1 CRANKCASE GROUP

FIG. 100

EX27 - 6 - 07-05

SECTION 1 CRANKCASE GROUP

REF. PART NO. DESCRIPTION QTY . REMARKS FROM-TO FIG. 10 279-10101-51 CRANKCASE CP 1 100 279-10102-51 CRANKCASE CP 1 w/ Oil Sensor 100 20 237-14202-03 VALVE GUIDE 2 100 26 277-16010-01 STEM SEAL 1 100 30 044-03001-60 OIL SEAL 1 100 40 060-03003-41 BALL BEARING 1 100 50 277-15011-03 PIPE KNOCK 2 100 60 010-50802-50 STUD 2 100 70 010-50604-10 STUD 2 100 75 044-00600-20 OIL SEAL 1 100 80 040-11400-30 PLUG 2 100 90 021-11400-20 GASKET 2 100 210 279-11002-11 MAIN BEARING COVER CP 1 SAE 100 279-11001-21 MAIN BEARING COVER CP 1 Metric 100 220 044-03001-60 OIL SEAL 1 100 230 060-03003-70 BALL BEARING 1 100 250 277-45004-21 GOVERNOR GEAR CP 1 100 260 277-41901-03 GOVERNOR SLEEVE 1 100 270 279-63601-13 OIL GAUGE 1 100 275 279-65001-03 FILLER PLUG 1 100 280 021-32000-50 GASKET 1 100 281 021-32000-50 GASKET 1 100 300 001-04083-50 FLANGE BOLT 7 100 610 279-13001-01 CYLINDER HEAD CP 1 ~2099999 100 610 279-13001-11 CYLINDER HEAD CP 1 2100000~ 100 620 279-15001-23 GASKET, head 1 100 630 011-00802-40 FLANGE BOLT 4 100 631 001-04083-50 FLANGE BOLT 1 100 680 277-15501-01 ROCKER COVER CP 1 100 690 277-16001-03 GASKET, rocker cover 1 100 700 277-15011-03 PIPE KNOCK 2 100 710 011-00600-20 FLANGE BOLT 4 100 850 085-10800-00 RUBBER PIPE 1 100 960 279-99001-07 GASKET SET 1 100 EX0-20000-01 GASKET IN A TUBE

Gasket Sets include the following: Fig. 100 items 90, 280, 620 and 690 Fig. 300 items 340 and 550

EX27 - 7 - 07-05

SECTION 2 CRANKSHAFT GROUP

FIG. 200

EX27 - 8 - 07-05

SECTION 2 CRANKSHAFT GROUP

REF. PART NO. DESCRIPTION QTY . REMARKS FROM-TO FIG. 10 279-20901-41 CRANKSHAFT CP 1 1" key, 3/8 tap 200

10 279-21001-31 CRANKSHAFT CP 1 1" Pump 200 10 279-21201-01 CRANKSHAFT CP 1 SAE taper 200 10 279-20201-51 CRANKSHAFT CP 1 Metric 25mm key 200 10 279-20301-41 CRANKSHAFT CP 1 Metric Pump 25mm 200 10 279-20701-41 CRANKSHAFT CP 1 Metric Taper 200 50 018-01800-10 FLANGE NUT 1 200 70 032-30300-10 WOODRUFF KEY 1 200 310 279-22501-20 CONNECTING ROD AY 1 200 320 279-23001-03 CONNECTING ROD BOLT 2 200 350 279-23301-03 PISTON PIN 1 200 360 279-23401-03 PISTON 1 STD 200 279-23403-03 PISTON 1 Oversize 0.25mm 200 279-23404-03 PISTON 1 Oversize 0.50mm 200 370 279-23511-07 PISTON RING SET 1 STD 200 279-23512-07 PISTON RING SET 1 Oversize 0.25mm 200 279-23513-07 PISTON RING SET 1 Oversize 0.50mm 200 380 056-51800-10 CLIP 2 200

EX27 - 9 - 07-05

SECTION 3 INTAKE and EXHAUST GROUP - NEW STYLE

FIG. 300

230240

210

200

EX27 - 10 - 07-05

SECTION 3 INTAKE and EXHAUST GROUP - NEW STYLE

REF. PART NO. DESCRIPTION QTY . REMARKS FROM-TO FIG.

10 279-31601-01 CAMSHAFT CP 1 2100000~ 300 25 277-35101-03 PIN, camshaft 1 2100000~ 300 27 024-00600-10 O RING 1 2100000~ 300 34 277-38601-03 PIN, spring 1 2100000~ 300 35 279-36401-03 RELEASE LEVER 1 2100000~ 300 37 277-36501-03 CLIP 1 2100000~ 300 38 277-38701-03 RETURN SPRING 1 2100000~ 300 60 279-33601-03 VALVE SPRING 2 2100000~ 300 70 269-33701-03 RETAINER VALVE SPRING 2 2100000~ 300 80 279-33401-13 INTAKE VALVE 1 2100000~ 300 90 279-33501-13 EXHAUST VALVE 1 2100000~ 300 95 132-10KA0-31 COLLET VALVE 4 2100000~ 300 150 279-35601-11 TIMING CHAIN CP 1 2100000~ 300 160 277-36911-03 TENTIONER 1 2100000~ 300 163 277-37101-03 SPRING, tentioner 1 2100000~ 300 166 277-36902-03 PIN, tentioner 1 2100000~ 300 170 277-36913-13 CHAIN GUIDE 1 2100000~ 300 200 277-35001-23 PIN, rocker 1 2100000~ 300 210 003-13050-00 CLIP 1 2100000~ 300 220 277-36201-00 ROCKER ARM AY, intake 1 2100000~ 300 225 277-36202-00 ROCKER ARM AY, exhaust 1 2100000~ 300 230 014-90500-20 ADJUST SCREW 2 2100000~ 300 240 017-00500-30 NUT 2 2100000~ 300 290 011-00600-20 FLANGE BOLT 1 2100000~ 300 310 279-30101-31 MUFFLER CP 1 2100000~ 300 279-30111-01 MUFFLER CP 1 w/ spark arrestor 2100000~ 300 315 279-37601-01 SPARK ARRESTOR 1 2100000~ 300 317 015-00400-60 TAPPING SCREW 1 2100000~ 300 320 279-34201-11 MUFFLER COVER CP 1 2100000~ 300 340 277-35201-13 GASKET, mufﬂ er 1 2100000~ 300 350 980-20082-80 FLANGE NUT 2 2100000~ 300 360 015-20600-90 TAPPING BOLT 2 2100000~ 300 361 011-00600-10 FLANGE BOLT 1 2100000~ 300 365 011-00801-50 FLANGE BOLT 1 2100000~ 300 385 277-37203-01 SCREEN CP 1 2100000~ 300 387 015-00400-60 TAPPING SCREW 2 2100000~ 300 440 277-37001-03 DEFLECTOR 1 2100000~ 300 445 015-00400-60 TAPPING SCREW 2 2100000~ 300

EX27 - 11 - 07-05