Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-10-2009, 16:47   #16
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
If you bought a new Yanmar in the crate...the manual should have come with it...at a yard (which will remain anonymous) they would pinch the manuals and charge separately for them.
__________________

__________________
Chief Engineer is offline   Reply With Quote
Old 10-10-2009, 23:25   #17
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Yeah, it came with two books. One is a 20 page "Limited Warranty Handbook".
And the other "Operation Manual" is 139 pages for four different motors that covers safety (to page 12), how to read the labels and gauges (to page 27) and other useless stuff the average Joe sailor should already know.

It does have a wiring schematic, maintenance schedule and specifications for all four motors, which basically breaks it down to about 30 pages, each, of very little info all mixed together, that I had to hi-lite to keep'm separate.

It would have been nice if they supplied the required sizes for the water inlet and exhaust as well as other installation recommendations rather then having to assume everything by measurements and educated guesses. I guess they assumed that only professionals would be installing theses motors.
__________________

__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 11-10-2009, 22:11   #18
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
In the manual it should say something about a kingston cock (seacock)

As far as inlet you make it the size of the intake on the water pump.

Exhaust(this is muy importante) must be the size of the exhaust outlet.

If your exixting exhaust hose is smaller....DO NOT ATTEMPT TO USE IT....!!!!!

I worked in a boatyard...I tried to tell the "mechanic" who was doing the install that he had to upsize the exhaust.....he told me to shut the %$#% up "I know what I'm doing!!!!" I'm not gonna change that hose...do you know what kinda run that is???
I said yup.....you are gonna have a real smoker.....he did have a smoker all right....
He tried to blame it on the engine.....(Yanmar).....Shortly there after I went into business for myself and haven't looked back.

BTW you can get manuals on eBay on CD.....I paid about $19.00 for mine....It sure beats greasy pages.
__________________
Chief Engineer is offline   Reply With Quote
Old 12-10-2009, 01:33   #19
Registered User
 
rusky's Avatar

Join Date: Aug 2009
Location: Queensland
Boat: Peterson 46
Posts: 340
Images: 6
Ok. It looks like all the advice I would or could look for has been said. One question - sometimes if the oil filter is cranked on far too tight and she may overheat when under stress - high revs. Just have a look at it anyway. I have had this happen on a volvo, not on my Yanmar though.
__________________
rusky is offline   Reply With Quote
Old 12-10-2009, 13:22   #20
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Quote:
Originally Posted by Chief Engineer View Post
In the manual it should say something about a kingston cock (seacock)

As far as inlet you make it the size of the intake on the water pump.

Exhaust(this is muy importante) must be the size of the exhaust outlet.

If your exixting exhaust hose is smaller....DO NOT ATTEMPT TO USE IT....!!!!!

............BTW you can get manuals on eBay on CD.....I paid about $19.00 for mine....It sure beats greasy pages.
Yep! That what I ment by educated guesses. But I have yet found anything about the maximun angle the motor can set at. My woods are at 12 degrees so it should be OK. most motors state 15 degrees.

What gets me is some of the design decissions, like a sheetmetal oil pan or the oil drain system, where you have to pull the dipstick tube and then have to replace the copper gaskets.
They also have a plug in the side of the block where it looks like a shorter dip stick could go but they use this long ass stick that would be hard to pull out in a tight space.

And to put in a vented loop between the heat exchanger and the exhaust mixer is so tight (about 2") they should have built in a system that could be attached easily. They are not even in line. I'll post a picture later.

If'n I'd known about all this BS I would have considered a different make.

It seems one has to carry lots of extra parts if your going off shore for any amount of time. They should come up with a 100 hour, 500 hour and 1000 hour kits that one can just buy and carry along, like with air compressors.
Hummm! Maybe I should start selling them?

The part that really gets me is the supplied hand crank oil discharge pump with no instructions on how to hook it up or even a fitting to hook it up, I assume at the dipstick fitting. But how without spilling a bunch of oil?
As they say "Necessity is the Mother of Invention".

Til' later....................._/)
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 12-10-2009, 19:06   #21
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Well, here it is, the spot where the vent loop needs to go. not much room, ehh.

I think I figured out this oil pump thing. The hose for the pump actually fits over the dipstick tube but I'll need to deburr the edges of the tube. It wants to cut/shave the inside of the hose.

And here's the plug where it looks like a dipstick was suppose to go.
Attached Thumbnails
Click image for larger version

Name:	mixertube.JPG
Views:	306
Size:	68.2 KB
ID:	10432   Click image for larger version

Name:	oilpump.JPG
Views:	181
Size:	65.5 KB
ID:	10433  

Click image for larger version

Name:	dipstick.jpg
Views:	346
Size:	120.1 KB
ID:	10434  
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 20-07-2010, 12:09   #22
Registered User

Join Date: Jun 2005
Location: pittsburgh PA
Boat: Nauticat 321 Pilothouse
Posts: 110
Send a message via AIM to MitchM
just a note in Yanmar's defense as a boat owner with 2 different yans, the 2GM20F and the 3JH4E;

yanmar has an 'INSTALL'manual for its engines that specifies seacock size, maximum fore/aft degrees of slant, etc. If your mechanic does not have one s/he should not be installing your engine..Yan also sells a Service manual and a PArts manual for each engine which are very good and well written manuals that will answer all of the above questions. (they are NOT shipped FOB with each engine, you ahve to pay for them. a shop that does a lot of installs will have them. a shop that's never done an install probably won't.do yourselves a favor and buy the s ervice manual and parts manual for your engine. Ask for the 'Minor Spares Kit' description (which has impeller, thermostat, alt belt ) and Major Spares (injectors etc.) and decide which ones you should have on your boat.

i love my yanmars and have ahd great support from my distributor NIEMEC MARINE new bedford MA and MACK BORING, east coast distributor. MACK BORING service and parts guys will give good advice on what parts you actually need for your 'minor spares' or ocean voyage trips.

fair winds to you.
__________________
MitchM is offline   Reply With Quote
Old 29-12-2016, 02:01   #23
Registered User

Join Date: Jul 2014
Posts: 8
Re: Yanmar 4JH3-TE Overheating at Full Load

Was the reason for the overheating ever found? A friend of mine has exactly the same problem on 4jh3 dte
Thanks a lot
Fchurtic
__________________
fchurtic is offline   Reply With Quote
Old 29-12-2016, 17:04   #24
Registered User

Join Date: Aug 2015
Posts: 442
Re: Yanmar 4JH3-TE Overheating at Full Load

Quote:
Originally Posted by fchurtic View Post
Was the reason for the overheating ever found? A friend of mine has exactly the same problem on 4jh3 dte
Thanks a lot
Fchurtic
Original thread from 2010... Probably not going to get an answer from the OP.

Lots of things to check for causes of overheating.
- impeller missing one or more blades.
- fouled propeller/boat bottom our improperly pitched prop.
- fouled heat exchanger.
- restricted water flow due to clogged exhaust elbow.
- bad thermostat.
- insufficient coolant in engine and/or airlock in water heater coolant circuit.


What have you checked so far?
__________________
boatbod is offline   Reply With Quote
Old 29-12-2016, 17:20   #25
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Yanmar 4JH3-TE Overheating at Full Load

Quote:
Originally Posted by fchurtic View Post
Was the reason for the overheating ever found? A friend of mine has exactly the same problem on 4jh3 dte
Thanks a lot
Fchurtic
From another thread, I think Charlie's not totally sure what the exact problem was, but after a flush and change of old coolant, it correct itself.

There are MANY factors in overheating and one just needs to go through the process of elimination starting with the thruhull right up thru the exhaust system. Then onto mechanical resistances.
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 29-12-2016, 17:27   #26
Registered User

Join Date: May 2014
Boat: Morgan Out Island 41
Posts: 700
Images: 2
Re: Yanmar 4JH3-TE Overheating at Full Load

Quote:
Originally Posted by delmarrey View Post
Yeah, it came with two books. One is a 20 page "Limited Warranty Handbook".
And the other "Operation Manual" is 139 pages for four different motors that covers safety (to page 12), how to read the labels and gauges (to page 27) and other useless stuff the average Joe sailor should already know.

It does have a wiring schematic, maintenance schedule and specifications for all four motors, which basically breaks it down to about 30 pages, each, of very little info all mixed together, that I had to hi-lite to keep'm separate.

It would have been nice if they supplied the required sizes for the water inlet and exhaust as well as other installation recommendations rather then having to assume everything by measurements and educated guesses. I guess they assumed that only professionals would be installing theses motors.

Actually they do supply the sizes. I just installed a 4JH2E (rebuilt) in my boat and the service manual lists the water intake as 25mm ( 1inch) and exhuast as 75mm (3 inches) look at the engine schematics for the info. my install has a 1.5" thruhull connected to the sea strainer with the outlet reduced to 1" then plumbed to engine. If you currently have a 3/4" seacock connected to the engine, I would bore out that same thruhull to at least the size for a 1 inch seacock. If all else fails I would use the size of the raw water pump inlet as the guide for the required plumbing size. you'd be surprised how much water passes through the cooling system.
__________________
pcmm is online now   Reply With Quote
Old 10-01-2017, 07:02   #27
Registered User

Join Date: Aug 2015
Posts: 442
Re: Yanmar 4JH3-TE Overheating at Full Load

There is a Yanmar Engine Installation Manual covering the important specifications such as hose sizes and back pressure etc. It's not supplied with the engine since (a) your Yanmar dealer has access to a copy and (b) Yanmar assumes the dealer will be doing the install our at least validating it prior to startup.
__________________

__________________
boatbod is offline   Reply With Quote
Reply

Tags
overheating, yanmar

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Yanmar 3YM30 Overheating Talbot Engines and Propulsion Systems 9 25-02-2010 05:51
Load on Halyards Triton318 Deck hardware: Rigging, Sails & Hoisting 2 24-02-2009 18:06
Overheating Yanmar? Zephyrus General Sailing Forum 4 05-10-2008 15:25
3gm30 Yanmar full of hose water.... Dave in Eugene General Sailing Forum 14 12-02-2008 20:15
Yanmar overheating seagypsywoman Construction, Maintenance & Refit 42 20-09-2006 14:41



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 07:21.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.