Home » Marines » Inboard Engines » Yanmar » GM Series. 3GM20-F-C, 3HM35-F-C Diesel Engine Manual Workshop Yanmar Marine Diesel Repair. The marine gear described in this manual is Yanmar Model KM Series. Operation Manual (Marine Engine) Models Code. 499611 - 00680 With regard to the sail drive, this manual describes lube Oil selection and specification only. Please read the Sail Drive Operation Manual, which is supplied with the Sail Drive Unit, for further information. Yanmar 1 gm 10, 2 gm 20, 3 gm 30, 3 hm 35. Yanmar marine diesel service manual 1gm10 2gm20 3gm30 3hm35 15 chapters. Engine yanmar 3ym30 3ym20 2ym15 operation manual size 19.9mb.
*Yanmar Gm Series Manual Transfer Switch
*Yanmar Gm Series Manual Guide
*Yanmar Gm Series Manual Fuel Pump
*Yanmar Engine Manual
*Yanmar Gm Series Manual DiagramRobWMember
*GM Series Operation Manual 3 SAFETY Yanmar considers safety of great importance and recommends that anyone that comes into close contact with its products, such as those who install, operate, maintain or service Yanmar products, exercise care, common sense and comply with the safety information in this manual and on the machine’s safety decals.
*Yanmar Advisory re Engine in Neutral when Sailing (45 Kb) uploaded by Ralph Johnstone Yanmar GM HM technical diagrams (3,985 Kb) uploaded by ingeanous Yanmar GM Series Maintenance Guide (240 Kb) uploaded by nheinlein Yanmar GM Shop Manual Part 1 (21,403 Kb) uploaded by Scott B Yanmar GM Shop Manual Part 2 (32,806 Kb) uploaded by Scott B.Hello!Our workshop manual which came with the boat helpfuly suggests filling the oil in the gearbox of the 1gm10 to 'between the two marks on the dipstick'. A logical and expected instruction you would think....HOWEVER, the dipstick in the gearbox only appears to have one mark, about 1cm from the bottom of the dipstick. (Standard gearbox, not a saildrive). 1) Can anyone confirm where the oil should be filled to (the max level)?(We have added the prescribed 0.25ltr which seems to take it to just above the mark - is this correct?)2) Can anyone suggest a decent operators manual or workshop manual for these engines?Many thanksRobert
Yanmar Engine Identification Help
Use this page to help identify your engine model based on year, horsepower and other data. If you do not find your engine listed here you may contact us at: customerservice@torresenonline.com. We will be adding more information to this page often. Let us know what engine you have and we will make it a priority to get your engine listed.
Understanding YANMAR engine model codes
Most engine model designations are on an engine data plate, on the front or the top of the engine. Some older engines have the data plate on the adapter plate between the engine and the gearbox . Here are some examples of engine model codes and their meanings: YSE8 Y= horizontal cylinder, lying down. SE = engine model type or block type. 8=8 horsepower If an engine model does not have the Y in the beginning, the engine has a vertical cylinder or cylinders. The numbers 1, 3, 4, and 6 indicate the number of cylinders. For example, 3GM is a 3 cylinder engine with a GM type block. A 2GM is a 2 cylinder engine with a GM type block, and so on. A 3GM30 is a 3GM that has a larger bore and therefore develops more horsepower than its predecessor. The 1GM, 2GM and 3HM were also uprated to 1GM10, 2GM20 and 3HM35 respectively, note, the suffix numbers are not the horsepower of the engine. All of the above engines are either 'raw water' cooled or 'fresh water' cooled. An engine with an enclosed cooling system containing fresh water and coolant, in turn cooled by raw water going through a heat exchanger, is a fresh water cooled engine. On engines that are either 'raw' or 'fresh', below 34hp, the fresh water cooled engine has the letter F in the model designation, i.e. a 3HM35F is a freshwater cooled engine. If the F is absent, it is a 'raw' water cooled engine. The JH, LH, LP, LY, CX and KY family of engines are all freshwater cooled. The letter C indicates the engine has a saildrive attached. A 3GM30FC is a 3 cylinder, freshwater cooled engine from the GM family, with a saildrive attached. A 4JH2-BE model is fitted with a down angle gearbox. An M means the engine was shipped from the factory without a gearbox e.g. 6CXM-ETE The 4JH series was uprated to 4JH2 series, then 4JH, series, each series increasing in bore size and horsepower while reducing emission levels to comply with the Bodenzee Regulations in Europe and the EPA / CARB regulations in the USA. 3JH, and 3JH3 versions are also of this family. The 4LH and 4LHA series are both 4 cylinder engines with the same long block assembled in Japan, but the 4LHA is finally assembled in the USA with US sourced components, the same also applies to the 6LY and 6LYA engines. The models 3JH and over have a suffix in the model code: -E is a normally aspirated export engine -TE, is a turbocharged, export model engine, -ETE is extra turbocharged -HTE is highly turbocharged, -DTE is deluxe turbocharged -UTE is ultra turbocharged, -STE is super turbocharged, etc. When the code has a Z, e.g., 4LHA-STZE, the engine is an inboard outboard model with a Mercruiser sterndrive or 'Z' drive.Y SeriesThese horizontal models lay down in a low profile. The series was updated three times with the YSE being the earliest model, followed by the YSB and then the YSM. Either a 2:1 or 3:1 transmission. The models were sea-water cooled, singe cylinder, heavy duty. This series includes the following engines:EngineHPYears In ProductionCommentsYSB12121976 - 1977B=BetweenYSB881976 - 1977B=BetweenYSE12121974 - 1976E=EarlyYSE881974 - 1976E=EarlyYSM12121977 - 1980M=ModernYSM881977 - 1980M=ModernS SeriesVertical models, updated two times with the SVE engines followed by the SB. Single cylinder, 2:1 or 3:1 transmissions, sea water cooled, heavy duty. This series includes the following engines:EngineHPYears In ProductionCommentsSB12121976 - 1980B=BetweenSB881976 - 1980B=BetweenSVE12121974 - 1976E=EarlySVE881974 - 1976E=EarlyQM SeriesThe QM series was available either sea-water or fresh-water cooled. 2:1 or 3:1 transmissions. A designation of F near the end of the model means it is fresh-water cooled. F=Factory Fresh Water This series includes the following engines:EngineHPYears In ProductionComments2QM - originally only distributed in Japan2QM15151977 - 19802 Cylinder2QM20221975 - 1980Engines with serial numbers 0001 - 0030 were prototypes and may require different parts. Engines with serial numbers 80001 - 80930 and 81131 - 81180 were also different from the primary production models and may require different parts. Engines with serial numbers 80931 - 81130 and any serial number higher than 81181 will use standard 2QM20 parts.2QM20(F)221975 - 19802 Cylinder2QM20(H)221975 - 19802 Cylinder3QM - originally only distributed in Japan3QM30331976 - 19803 Cylinder3QM30(F)331976 - 19803 Cylinder3QM30(H)331976 - 19803 CylinderGM/HM SeriesIntroduced in 1980 and 1981 this series was a completely new generation of engines. Lighter, smaller, smoother and quieter than previous engines. An F designation on the model number indicates factory fresh-water cooling. 35 AMP alternators. This series includes the following engines:EngineHPYears In ProductionComments1GM7.51980 - 1983Raw2GM151980 - 1983Raw2GMF151980 - 1983Fresh3GM22.51980 - 1983Raw3GMD22.51980 - 1983.3GMF22.51980 - 1983Fresh3HM301980 - 1983Raw3HMF301980 - 1983FreshGM/HM Bored Up SeriesSimilar to the earlier standard GM/HM series, these engines provide upgraded horsepower and a 55 AMP alternator (1GM10 35 AMP). Special Note: If your engine serial number starts with an 'E' you must make sure that you use parts for the YEU engines. For example, if you have a 2GM20 with a serial number starting with E you actually have a 2GM20YEU. The (YEU) engines are European manufactured and now more common in the United States than the Japan built models. This series includes the following engines:EngineHPYears In ProductionComments1GM1091983 - 2009Raw Water2GM20181983 - December 2005Raw2GM20-YEU181997 - Present2GM20F181983 - December 2005Fresh2GM20FYEU18 - .3GM30271983 - December 2005Raw3GM30-YEU271997 - Present3GM30F271983 - December 2005Fresh3GM30F YEU27 - 3HM35341983 - 1992Replaced with 3JH23HM35F341983 - 1992Replaced with 3JH2YM SeriesCompletely redesigned cylinder block and new combustion system. Indirect injection, fresh water cooled with heat exchanger, this new engine line complies with ETA Tier 2 and BSO Tier 2. Electric stop solenoid is standard. This series includes the following engines:EngineHPYears In ProductionComments2YM1514Fall 2004 - PresentUS Built3YM2022Summer 2004 - PresentUS Built3YM3030Summer 2004 - PresentUS BuiltJH SeriesExtremely smooth running. Two transmission possibilities were available – either a Hurth or 7 degree down angle B type. 80% of the parts for this series of engine are inter-changable since all four engines in the series used the same block. This series includes the following engines:Yanmar Gm Series Manual Transfer SwitchEngineHPYears In ProductionComments4JH-DTE771985 - 1989Turbo Charged4JH-E441983 - 19894JH-TE551983 - 1989Turbo Charged4JH-THE661985 - 1989Turbo ChargedJH2 SeriesExtremely smooth running. Horsepower upgrade over the previous JH series. Quiter and cleaner exhaust. A B designation on these engines indicate a down angle transmission. This series includes the following engines:EngineHPYears In ProductionComments3JH(B)E381992 - 19993JH2-T(B)E471991 - 1999Turbo4JH2-(B)E511989 - 19994JH2-DT(B)E881989 - 1999Turbo-Intercooled4JH2-HT(B)E761989 - 1999Turbo-Intercooled4JH2-T(B)E631989 - 1999Turbo-Intercooled4JH2-UT(B)E1001991 - 1999Turbo-IntercooledJH3 SeriesUpgraded blocks, smaller overall size, smoother and quieter. Meets all new EPA requirements. This series is a replacement of the JH2 series. This series includes the following engines:EngineHPYears In ProductionComments3JH340May 1999 - 20044JH3-DTBE125Summer 1999 - December 2006Turbo-Intercooled4JH3-HTBE100Summer 1999 - December 2006Turbo-Intercooled4JH3-T(B)E75Summer 1999 - December 2006Turbo4JH3E56May 1999 - 2004JH4 SeriesRedesigned cylinder block and new combustion system. Produces 25% more torque with only a 10% increase in displacement. Lower running speed and less vibration reduce noise by five decibels. Complies with EPA Tier 2 emmissions. This series includes the following engines:EngineHPYears In ProductionComments3JH4E39Summer 2004 - Present3JH4E40Summer 2004 - Present4JH4E55Summer 2004 - December 2006LH SeriesYanmar Gm Series Manual GuideExtremely compact and lightweight. Very powerful. Transmission is a 7 degree down angle (bi-rotational). Also designed to cleanly replace gas V-8 engines. Larger Hp models. A=Built in USA. Available as both inboard and Mercruiser Stern Drive packages. This series includes the following engines:EngineHPYears In ProductionComments4LH-DTE1701990 - 2000Replaces 350 GM4LH-HTE1401988 - 2000Turbo-Intercooled4LH-STE230September 1995 - August 1998Replaces 454 GM4LH-TE1101988 - 2000Turbo4LHA-DTE190June 2000 - August 2001Upgrade from 1704LHA-DTZE190Spring 2000 - August 2001Merc I/O Package4LHA-HTE150Spring 2000 - August 2001Turbo-Intercooled4LHA-HTZE150Spring 2000 - August 2001Merc I/O Bravo4LHA-STE230September 1998 - August 2001Waste gated and US built4LHA-STZE230August 1999 - August 2001Merc I/O Bravo
LY SeriesIntroduced in 1992, this is the six cylinder version of the 4LH series. Lightweight, compact with excellent horsepower to weight ration. All models are the same size and weight. Smallest HP in its class. Race-proven performance with startling power-to-weight capability and low-slung configuration. Extremely popular for repowering petrol-driven engines because of the flat-top, narrow profile of these diesels. The engines benefit further from outstanding fuel economy. This series includes the following engines:Yanmar Gm Series Manual Fuel PumpEngineHPYears In ProductionComments6LY-STE350(70)1994 - 1996Turbo-Intercooled6LY-UTE3151992 - 1996Turbo-Intercooled6LY2-STE4201998 - Present6LY2A-STE420March 2001 - September 2001US built6LYA-STE350January 1997 - May 2001US built6LYA-STP - 6LYA-UTE315January 1997 - December 2001US builtLP SeriesNew mini-6 cylinder, super quiet, lightweight, designed for inboard and Merc sterndrive packages. Higher speed (3800 RPM). Many changes from Yanmar's traditional marine models. This series includes the following engines:Yanmar Engine ManualEngineHPYears In ProductionComments6LP250-3001997 - present6LP-DTZE250January 1998 - September 2001Merc I/O Package6LP-STE300June 1997 - July 2001Inboard6LP-STZE300January 1998 - October 2001Merc I/O Bravo6LPA-DTE250March 2001 - July 2001US built6LPA-DTP260August 2001 - December 2006Higher Hp6LPA-DTZE250March 2001 - July 2001US built6LPA-STE300March 2001 - June 2001US built6LPA-STZE300March 2001 - June 2001US built6LPDTE250June 1997 - September 2001Super Quiet/InboardCX SeriesHeavy duty, super smooth and quietest in this HP class. Commercial model with 4 valves per cylinder. Premium quality. This series includes the following engines:Yanmar Gm Series Manual DiagramEngineHPYears In ProductionComments6CX(M)-ETE4201992 - December 2001Turbo-Intercooled6CX-GTE465Fall 1999 - December 2005Turbo-Intercooled6CXM-GTE2500July 2001 - PresentTurbo-Intercooled
