2qm20h

[Don LePage]

I have been looking high and low for a Yanmar Manual for my good old original 2QM20H in my Cutter 37. Is there anyone that could find me a source for one or a copy?

The main question is what oil should be in the reverse gear box.

 

[Jim Legere]

Hi,
I have the 3QM30 with the Kazanaki (sp?) gearbox in my 1983 H37C and it uses Dexron II ATF. I think I have a PDF of an old owners manual for both the 2 & 3 cylinder Yanmars somewhere on one of my computers - I'll try and find it and put it up on the site.

 

[Don LePage]

Right now I have Dextron in the gear box. Going to change oils and I want to make sure. I have a 2gm 3gm manual and that is what has confused me. If you have a pdf of the 2QM 3QM manual I would be delighted to have a copy. Thank you in advance. I'm sure others would appreciate that. Just another asset to keep our good old Cutters in good shape.

 

[Steve Dion]

The GM engine uses 30wt.

 

[Don LePage]

That is correct.

 

[rardiH36]

Try A Seloc Manual

I've got a 2QM20H in my 1980 Cherubini 36 -- and I've got an official Yanmar manual for it. It's on the boat.

I also have a Seloc repair manual, Publication No. 7400 "Yanmar Inboards 1975-98 Repair Manual QM,GM/HM, JH &JH2 Series.

For each section, the Seloc book has diagrams and instructions for each engine type for areas where they differ. For the QM's, I've noted that diagrams are exact copies of the Yanmar manaul.

If I didn't have the Yanmar manual, Seloc would be just fine. Seloc manuals are available lots of places and relatively inexpensive compared to the manufacturer's original. Just do an internet search. Or here is the link to the manual's web page at Amazon ...

http://www.amazon.com/Yanmar-Inboar..._1_1?ie=UTF8&qid=1258563999&sr=1-1-fkmr2#noop

My transmission calls for 30wt engine oil rather than transmission fluid. The name plate on the transmission might even specify the oil type.

 

[Steve Dion]

Here ya go!

http://www.yanmarhelp.com/i_box2.htm

 

[jorgefife]

I too am looking for a manual for my H33, 1982
I think it is a 2GM Yanmar; I saw something once on this web-site, but now cannot find it
Anyone out there has one to send?
Thanks
I especially want to see where does the throttle cable connect on the engine

 

[Ed Schenck]

Unless you or a previous owner did a repower your engine should be a 2QM20 I think. I sold mine complete with manual. I have attached a picture of an old 3QM30 which had the same throttle cable attachment. You can see a lever and a mounting place for the cable just to the left of the injector pump. When I had the 2QM20 in my boat the throttle came over the top toward the steps. Then it looped down and back to that lever.

I also found that post from earlier in the week about zincs on the 2QM. It had a link to a German Yanmar site with manuals. Here is the 2QM15http://www.motoren.ath.cx/download.php?filename=yanmar/2qm15service.pdf ). It is very big(13M PDF), very detailed, and very complete EXCEPT for the throttle cable. Closest thing is on page 1-14. Here is the original link( http://www.motoren.ath.cx/menus/yanmar.html). It shows a 2QM20 which I could not open.

 

[SamLust]

Yanmar stopped producing the QM series sometime around 1978. 1980-11983 Hunter 33's were supplied with 2GM20 non fresh water cooled engines.

I will try to remember to shoot pictures of the fuel cable attachment while I winterize the engine. My engine is a 3GM30F but that area is close enough so it won't matter. Now that I think about it I have the parts manual. If it has a decent breakout if that area I'll scan it. Won't happen till after the weekend.

 

[Steve Dion]

Y Series
These 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=Modern
S Series
Vertical 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=Early
QM Series
The 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 Cylinder
GM/HM Series
Introduced 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 - 2004Raw2GMF151980 - 1983Fresh3GM22.51980 - 2004Raw3GMD22.51980 - 1983.3GMF22.51980 - 1983Fresh3HM301980 - 1983Raw3HMF301980 - 1983Fresh
GM/HM Bored Up Series
Similar 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 - PresentRaw Water2GM20181983 - PresentRaw2GM20-YEU181997 - Present2GM20F181983 - PresentFresh2GM20FYEU18- .3GM30271983 - PresentRaw3GM30-YEU271997 - Present3GM30F271983 - PresentFresh3GM30F YEU27- 3HM35341983 - 1992Replaced with 3JH23HM35F341983 - 1992Replaced with 3JH2
YM Series
Completely 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 Built
JH Series
Extremely 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: EngineHPYears In ProductionComments4JH-DTE771985 - 1989Turbo Charged4JH-E441983 - 19894JH-TE551983 - 1989Turbo Charged4JH-THE661985 - 1989Turbo Charged
JH2 Series
Extremely 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-Intercooled
JH3 Series
Upgraded 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 - PresentTurbo-Intercooled4JH3-HTBE100Summer 1999 - PresentTurbo-Intercooled4JH3-T(B)E75Summer 1999 - PresentTurbo4JH3E56May 1999 - 2004
JH4 Series
Redesigned 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 ProductionComments3JH4392004 - Present3JH4E40Summer 2004 - Present4JH4E55Summer 2004 - Present
LH Series
Extremely 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, US built4LHA-STZE230August 1999 - August 2001Merc I/O Bravo
LY Series
Introduced 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: EngineHPYears 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 built
LP Series
New 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: EngineHPYears 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 - PresentHigher Hp6LPA-DTZE250March 2001 - July 2001US built6LPA-STE300March 2001 - June 2001US built6LPA-STZE300March 2001 - June 2001US built6LPDTE250June 1997 - September 2001Super Quiet/InboardCX Series
Heavy duty, super smooth and quietest in this HP class. Commercial model with 4 valves per cylinder. Premium quality. This series includes the following engines: EngineHPYears In ProductionComments6CX(M)-ETE4201992 - December 2001Turbo-Intercooled6CX-GTE465July 2001 - PresentTurbo-Intercooled6CXM-GTE2500July 2001 - PresentTurbo-Intercooled

 

[Don LePage]

I ordered the Seloc manual yesterday but if anyone has a 2qm20h manual on pdf for any file format for that matter, please let me know. I was given a 2qm15 manual in pdf (thanks again) but the engine is somewhat different.

 

[jorgefife]

Dear Sam,
I too alos have a H##, 1982, and it is a 2GM Yanmar
Someone kindly sent me a manual through the internet, but it was a 3Qm
Do you have one to send me?
That would be great
Had a storm this weekend, could not step up my mask, but this is going to be a good weekend
Pleased to see all electrics work just fine, all I needed was a shore cable, and TLC
Jorge Fife

 

[jorgefife]

I meant to write H33, 1982
Will check before I post next time.
Too excited here!

 

[Don LePage]

A 2GM engine is quite a bit different from a 2QM20H. It is a newer version. I do have a pdf of the 2GM manual and will send you a copy of the file.

 

[Pat McCartin]

the transmissions on the QM and GM series are different. The GM series Kanzaki KM2A uses 30wt.
The QM's should have a Kanzaki KBW ?? series. this is a knock off of a Hurth and uses ATF.