SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel > Starting a diesel that sat for 18 years.
 Not a Member? 

Diesel This is a forum dedicated to diesel engines and their applicable accessories.


Thread: Starting a diesel that sat for 18 years. Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
09-27-2013 09:36 AM
chucklesR
Re: Starting a diesel that sat for 18 years.

Congratulations, now go sailing quick before winter hits.

And BTW:



Seriously, new to you boat, 18 years of sitting around. Pictures darn it.
09-26-2013 09:15 PM
HUGOSALT
Re: Starting a diesel that sat for 18 years.

Congrats Captainmeme...Expected nothing less from Yanmar GM.
Now be sure to replace your brand new 18 year old impeller and
belts, you can keep the old for spares but suggest you keep
additional new ones on board.
09-26-2013 04:43 PM
DrB
Awesome!!

Quote:
Originally Posted by Captainmeme View Post
Ahhhh, the sweet song of the diesel.She started the first time I pushed the start button on the maybe the second rev. She was spitting black for about 30 seconds. Probably all that fogging oil I sprayed in. Throttle works, she idles around 1000 rpm, seems high, more quiet than I thought it would be, engine kill linkage works too. One huge check mark done on the book of things to do.

I have the fuel return line going to a can to catch all the old fuel. None came out, in fact no fuel came out. I thought about 10 % was injected while 90% was returned to the tank.

I also learned I don't like bleeding the fuel lines or changing the oil. I think mechanical devices to do this are in my future. An electrically operated oil pump to suck the oil out of the sump and an inline electric fuel pump to charge the lines.

Thanks to all who suggested the proper course of action.
This is a true testament to the bulletproofness of Yanmar Diesels. Hard to screw them up as long as one does basic upkeep and maintenance. Love my 3GM30 motor.
09-23-2013 09:56 PM
capt jgwinks
Re: Starting a diesel that sat for 18 years.

You don't get much return flow on a 4 stroke diesel. 2 strokes like Detroit Diesels and others with common rail systems return a lot of fuel to the tank.
09-19-2011 04:41 PM
TQA Don't worry that you have little fuel coming out of the return line if you have a plunger type injector pump. The return line is only there to deal with leakage past the plungers an injectors which is a small but significant amount. Say 1 to 2 % of fuel burnt.

N.B. There is a type of pump/governor which does bypass large %s of fuel but I don't think it is fitted to a 3GM.
09-19-2011 03:09 PM
casey1999
Quote:
Originally Posted by Captainmeme View Post
Ahhhh, the sweet song of the diesel.She started the first time I pushed the start button on the maybe the second rev. She was spitting black for about 30 seconds. Probably all that fogging oil I sprayed in. Throttle works, she idles around 1000 rpm, seems high, more quiet than I thought it would be, engine kill linkage works too. One huge check mark done on the book of things to do.

I have the fuel return line going to a can to catch all the old fuel. None came out, in fact no fuel came out. I thought about 10 % was injected while 90% was returned to the tank.

I also learned I don't like bleeding the fuel lines or changing the oil. I think mechanical devices to do this are in my future. An electrically operated oil pump to suck the oil out of the sump and an inline electric fuel pump to charge the lines.

Thanks to all who suggested the proper course of action.
Although it probably does not meet code, I installed a Moeller fuel bulb between my diesel tank and the Racor fuel filter, then next comes the yanmar fuel filter at the engine. I also installed a fuel bypass line (with ball valve that I can shut). Note: The bypass line runs to the engine fuel return line, which goes to the tank (this works well as you do not need to run an extra line to the tank or need a new fitting on the tank.). When I want to prime the system (after changing filters), I open the bypass valve and squeze the bulb. The entire line is now primed up to the yanmar fuel filter. Now close fuel bypas valve. Now losen prime screw at top of fuel filter and squeeze until no air comes out. Then, if you need to prime futher, losen fuel inlet line at the fuel injection pump and squeeze. Works for me great. You could substitute the primer bulb for an electric fuel pump, but I was concerned about breaking the yanmar lift pump diapham and causing fuel leak. Some also do away with the yanmar lift pump and go with an electric fuel pump at the tank, but what if there is a fuel leak in the line to the engine- now the bilge will fill with fuel. With the squeeze bulb, this cannot happen, as line is under a slight vacuum under normal operational conditions.

The plastic washer on the fuel filter bleed screw should be replaced say every few years as it does crack and will allow air into the system, and engine stalling.
09-19-2011 02:57 PM
casey1999
Quote:
Originally Posted by xymotic View Post
Start with the easy/obvious. Disconnect the throttle at the engine and see if manually moving the lever you can get full RPM. Could just be an adjustment of the cable.
I have done this. The throttle control at the engine is at the maximum postition, and engine still below max rpm.

I would think the engine should always have some return fuel no matter what the throttle position, but maybe I am wrong. I do not have a good understanding the relationship between the injector pump and the fuel injectors.
09-19-2011 02:52 PM
arf145
Quote:
Originally Posted by Captainmeme View Post
Ahhhh, the sweet song of the diesel.She started the first time I pushed the start button on the maybe the second rev. She was spitting black for about 30 seconds. Probably all that fogging oil I sprayed in. Throttle works, she idles around 1000 rpm, seems high, more quiet than I thought it would be, engine kill linkage works too. One huge check mark done on the book of things to do.
Congratulations!
09-19-2011 02:34 PM
xymotic
Quote:
Originally Posted by casey1999 View Post
I do not get fuel out of my return line on my 3GMD either. I also do not seem to get to full RPM rated.

I would think if fuel was not going back to the tank through the fuel return line, then the fuel injection pump must not be pumping enough fuel. I have a new yanmar lift pump and all my filters are new. Engine runs ok, and powers boat fine, just does not make max rpm.

Any ideas what would cause this?
Start with the easy/obvious. Disconnect the throttle at the engine and see if manually moving the lever you can get full RPM. Could just be an adjustment of the cable.
09-19-2011 02:30 PM
casey1999
Quote:
Originally Posted by Captainmeme View Post
Ahhhh, the sweet song of the diesel.She started the first time I pushed the start button on the maybe the second rev. She was spitting black for about 30 seconds. Probably all that fogging oil I sprayed in. Throttle works, she idles around 1000 rpm, seems high, more quiet than I thought it would be, engine kill linkage works too. One huge check mark done on the book of things to do.

I have the fuel return line going to a can to catch all the old fuel. None came out, in fact no fuel came out. I thought about 10 % was injected while 90% was returned to the tank.

I also learned I don't like bleeding the fuel lines or changing the oil. I think mechanical devices to do this are in my future. An electrically operated oil pump to suck the oil out of the sump and an inline electric fuel pump to charge the lines.

Thanks to all who suggested the proper course of action.
I do not get fuel out of my return line on my 3GMD either. I also do not seem to get to full RPM rated.

I would think if fuel was not going back to the tank through the fuel return line, then the fuel injection pump must not be pumping enough fuel. I have a new yanmar lift pump and all my filters are new. Engine runs ok, and powers boat fine, just does not make max rpm.

Any ideas what would cause this?
This thread has more than 10 replies. Click here to review the whole thread.

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 11:14 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.