Crankshaft

					CONTENTS
Seeti0n			Tirle				Page
.	SPECIFICATIONS						1
1	SPECIFICATIONS			. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			1
2.	PERFORMANCE		. . . . . . . . . . . .		. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		3
	2 - 1	Maximum Output			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	3
	2 - 2	Continuous Rated Output				. . . . . . . . . . . . . . . . . . . . . . . . . . .	3
3.	2 - 3	Maximum Torque and Fuel Consumption Ratio a t Maximum Output					. 3
3.	FEATURES . . .		. .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			5
4.	GENERALDESCRIPTION of ENGINECONSTRUCTION						. 5
	4 - 1	Crankcase	. . . . . . . . . . . .		. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		5
	4 - 2	Crankshaft			. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		6
	4 - 3	Connecting Rod andPiston			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	4 - 4	Cylinder andCylinderHead			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	6
	4 - 5	GearCaseCover		. . . . . . . .	. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	7
	4 - 6	Camshaft	. . . . . . . . . . . .		. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	7
	4 - 7	TappetandTappetGuide				. . . . . . . . . . . . . . . . . . . . . . . . . . .	7
	4 - 8	Rocker Arm		. . . . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
	4 - 9	Rocker Cover			. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		8
	4 - 10	GovernorSystem			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	8
	4 - 11	Lubrication System			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	8
	4 - 12	Cooling System			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	9
	4 - 13	Injection Pump			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	9
	4-14	Nozzle . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .				9
	4 - 15	Combustion System			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	10
	4 - 16Sectional View of Engine						11
5.	DISASSEMBLY and REASSEMBLY					. . . . . . . . . . . !	. 13
	5- 1 Preparations andSuggestions				. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		13
	5 - 2	Special Tools		. . . . . . . . . .	. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	13
	5 - 3	DisassemblySequence				. . . . . . . . . . . . . . . . . . . . . . . . . . .	14
6.	5 - 4	How to Reassemble			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	20
6.	FUEL	. . . . . . . .	. .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .			28
7.	6 - 1	Qualityof	Fuel		. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	28
7.	GENERALDESCRIPTION of AUXILIARYGADGETS and PARTS						. 29
	7 .1	Fuel Injection Pump Mechanism					29
	7 - 2	Fuel Injection Nozzle Holder					33
	7 - 3 GovernorMechanismand Operation						36
	7 - 4	Lubrication Systemand Oil Pump					38
	7 - 5	OilFilter			. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		38
8.	7 - 6	Electric Apparatus			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	39
8.	INSTALLATION		. . . . . . . . . . . .		. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	40
	8 - 1	Installing			. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	40
	8 - 2	Ventilation			. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		40
	8 - 3	Exhaust GasDischarge				. . . . . . . . . . . . . . . . . . . . . . . . . . .	40
	8 - 4	FuelSystem		. . . . . . . . . .	. . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . .	40
9.	8 - 5	PowerTransmission t o DrivenMachines					40
9.	CHECKS and CORRECTIONS						41
10.	TABLE of CORRECTIONSTANDARDS						42
11.	MAINTENANCE and STORING						45
	11 - 1	Daily Checks andMaintenance					45
	11 -2	Every 25 Hours Checksand			Maintenance		45
	11- 3	Every 50 Hours (10 days) Checksand				Maintenance	. 45
	11- 4	Every 100	-	200 Hours (Monthly) Checksand Maintenance			45
	11-5	Every 500	-	600 Hours(Semiannual) Checks and Maintenance			. 46
	11 - 6	Every 1000 Hours (Yearly) Checksand				Maintenance	. 46
	1 1-7	Every 1500 Hours(Overhauls)					46
12.	11 - 8	Preparation for LongAbeyance					46
12.	REDUCTIONS for BTYPEENGINES . . . .					. . . . . . . . . . . . . . . . . . . . . . . . . . . .	47
	12-1	Configuration of 1/2 Reducer					: 48
	12-2	Structure of 1/2 Reducer					49
	12-3	DisassemblyandReassembly			of 1/2 Reducer		51

DY41, DY30, DY35 specifications

Subaru Robin Power Products have built a solid reputation in the realm of portable engines and generators, particularly with their DY35, DY30, and DY41 models. These engines are extensively used for various applications, ranging from construction to agricultural equipment, owing to their reliability and efficiency.

The Subaru DY35 engine exemplifies performance with a displacement of 35cc. Its lightweight design ensures easy portability, while its robust construction provides durability in demanding environments. Featuring a two-stroke cycle, the DY35 offers a high power-to-weight ratio, making it ideal for handheld equipment and compact machinery. Key characteristics include its advanced electronic ignition system that promotes easy starting and reliable operation. The DY35 also boasts superior fuel efficiency, which translates to lower operational costs over time.

Moving on to the DY30, this engine is designed with versatility in mind. It has a slightly smaller displacement of 30cc, making it a great choice for various power tools and smaller machinery. The DY30 is known for its excellent torque delivery, which allows users to tackle challenging tasks without the need for frequent refueling. One of its standout features is the automatic lubrication system that keeps the engine running smoothly while minimizing wear and tear. This feature significantly extends the engine’s life, making it a favorite among users looking for long-term performance.

The DY41 takes a step up in power with a displacement of 41cc, making it suitable for heavier-duty applications. Designed for larger equipment, the DY41 is renowned for its high torque and robust construction. It also includes an innovative cooling system that effectively dissipates heat, ensuring optimal engine performance in prolonged usage scenarios. The DY41 is equipped with advanced vibration-dampening technology, which enhances user comfort and reduces fatigue during operation.

Each of these Subaru Robin engines incorporates fuel-efficient technologies that reduce emissions and comply with environmental regulations. They are built to withstand the rigors of demanding work environments while providing reliable power. With their distinct features and durable designs, the DY35, DY30, and DY41 engines continue to be sought-after choices for professionals and hobbyists alike, underscoring Subaru's commitment to innovation and quality in power products.

Subaru Robin Power Products DY35, DY41, DY30 manual Crankshaft

Models: DY41 DY30 DY35

CONTENTS

DY41, DY30, DY35 specifications