EH12, EH17, EH25 - Small Engine Discount

More documents

Recommendations

Info

~~~~ Step Part to remove Procedures Remarks Tool 29 Intake valve and Exhaust valve (1) Loosen adjusting screw on rocker arms. (2) Pull out rocker arm shaft from the intake side of the cylinder head. (See Fig. 5-22.) (3) Remove rocker arms after removing rocker shaft. (4) Press down spring retainer and slide it to release from the groove of valve stem, then remove spring retainer and valve spring (5) Remove intake and exhaust valve. (See Fig. 5-23.) " - Inspect valves, valve seats and guide. Do not remove valve guides unless they are worn beyond the limit shown in page 57. ROCKER ARM SCREW DCS. ROCKER SHAFT SPRING RETAINER VALVE SPRING I INTAKE VALVE Fig. 5-24 II I \ Fig. 5-23 - 30 -
5-4 REASSEMBLY PROCEDURES 0 PRECAUTIONS FOR REASSEMBLY 1) Clean parts throughly before reassembly. Pay most attention to cleanliness of piston, cylinder, crankshaft, connecting rod and bearings. 2)Scrape off all carbon deposits from cylinder head, piston top and piston ring grooves. 3)Check lip of oil seals. Replace oil seal if the lip is damaged. Apply oil to the lip before reassembly. 4)Replace all the gaskets with new ones. 5)Replace keys, pins, bolts, nuts, etc., if necessary. 6)Torque bolts and nuts to specification referring to the “TORQUE SPECIFICATIONS”. 7)Apply oil to rotating and sliding portions. 8)Check and adjust clearances and end plays where specified in this manual. 54-1 CRANKSHAFT (1) Install crankshaft on crankcase using an oil seal guide to avoid damage to oil seal. (See Fig. 5-26.) (2) Install woodruff key for the flywheel on crankshaft. Fig. 5-26 5-4-2 PISTON AND PISTON RINGS (1) Install the oil ring first, then second ring and top ring. Spread the ring only far enough to slip over the piston and into the correct groove. Use care not to distort the ring. (See Fig. 5-27.) Install the top ring and the second ring with the punched mark “N” beside the gap on the top side. (See Fig. 5-29.) OPEN ENDS OF PISTON RING I Fig. 5-27 - 31 -
Page 2 and 3: ROBIN ROBIN AMERICA, INC. ROBIN TO
Page 4 and 5: " . 13-1 13-2 13-3 13-4 13-5 13-6 1
Page 6 and 7: ~~~~ ~~ Model TY Pe Bore X Stroke P
Page 8 and 9: 2. PERFORMANCE 2-1 MAXIMUM OUTPUT A
Page 10 and 11: n 0 EHf7D, B (. ). for B type " kg-
Page 12 and 13: 3. FEATURES 1. The overhead valve d
Page 14 and 15: 4-6 CAMSHAFT ‘I’he camshaft for
Page 16 and 17: 4-12 IGNITION SYSTEM The ignition s
Page 18 and 19: ROCKER ARM I L - 14 -
Page 20 and 21: 5-3 DISASSEMBLY PROCEDURES Step Par
Page 22 and 23: ~~ I Step I Part to remove 1 Proced
Page 24 and 25: Step Part to remove Procedures Rema
Page 26 and 27: ~ ~~ ~ ~~ ~~~ ~ I Step Part to remo
Page 28 and 29: ~~ ~ ~~ Step 18 Part to remove 1 Pr
Page 30 and 31: Step Part to remove 1 Procedures Re
Page 32 and 33: Step 26 Part to remove Connecting r
Page 36 and 37: TOP RING “N” MARK SECOND RlNC O
Page 38 and 39: 54-5 BALANCER SHAFT (EH25 type only
Page 40 and 41: Fig. 5-36 (2) Lubricate the oil sea
Page 42 and 43: (2) Loosen the lock nut on the rock
Page 44 and 45: (3) Connect the speed control lever
Page 46 and 47: 5-5 BREAK-IN OPERATION An engine th
Page 48 and 49: 6-3 WIRING DIAGRAM STANDARD - Ignit
Page 50 and 51: 8. CARBURETOR 8-1 OPERATION AND CON
Page 52 and 53: 8-2-4 MAIN SYSTEM (1) Remove the bo
Page 54 and 55: (4) Remove the reel from the starte
Page 56 and 57: (6) Test the operation of the recoi
Page 58 and 59: 10-1-3 IGNlTfON SYSTEM Check the fo
Page 60 and 61: 11. INSTALLATION Engine life, ease
Page 62 and 63: ITEM T EH12 T EH17 Unit: mrn (in) S
Page 64 and 65: ~~ ~~~ ~ Ring groove ITEM side clea
Page 66 and 67: ITEM T STD EH12 Limit Unit: mrn (in
Page 68 and 69: ~ CONNECTING ROD ITEM T STD EH25 Li
Page 70 and 71: Unit : mm (in) CAMSHAFT ITEM STD EH
Page 72 and 73: ITEM T STD EH25 Limit Unit: mm (in)
Page 74 and 75: 12-3 OIL GRADE CHART I 5w I Compari
Page 76: ~ ~ ~~~~ ~ ~ 13-4 EVERY 100-200 HRS

EH12, EH17, EH25 - Small Engine Discount

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?