Can a Diesel be Flooded with Fuel? - SailNet Community

   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
 Not a Member? 

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


Reply
 
LinkBack Thread Tools
  #1  
Old 04-26-2013
Junior Member
 
Join Date: Apr 2013
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Invictus322 is on a distinguished road
Can a Diesel be Flooded with Fuel?

Hello All
I am new to sailboat ownership and just took my first outing on the O'Day 322 which we just purchased. The Yanmar 2GM was very difficult to start. Thanks to some good advice on this site, I knew enough to shut the raw water intake after a couple of failed attempts to start. I had read that she would start best with 3/4 throttle. After a couple of coughs and almosts...she belched a bit of smoke into the engine compartment. I let her sit for a few minutes, then tried again with 1/4 throttle and she came to life and ran normally. My question is can a diesel be flooded with fuel? When she did start, when the raw water was opened, she blew out a slug of black water, then cleaned right up...
Thanks
Don
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 04-26-2013
chucklesR's Avatar
Senior Member
 
Join Date: Sep 2007
Location: Pasadena Md - Magothy side
Posts: 5,979
Thanks: 10
Thanked 31 Times in 31 Posts
Rep Power: 10
chucklesR is a jewel in the rough chucklesR is a jewel in the rough chucklesR is a jewel in the rough
Re: Can a Diesel be Flooded with Fuel?

If it cleaned right up (the discharge water) I suspect it was just a load of soot in the exhaust.
Soot is unburned fuel in your exhaust system/water muffler - in this case most likely caused by running too rich (like under prop'd).
Black smoke is too much fuel, white is too much air, and blue is burning oil (general statements that hold up in 99 percent of circumstances).

Start at 1/4 throttle not 3/4 in neutral - and only if cold.
I keep the raw water open, but only crank for 5-10 seconds, pause, try again. After 3-4 tries if it doesn't start wait a minute and let the starter cool and the water drain.

I never crank with the water closed - that's the best way I know of to kill an impeller.
__________________
Lessons learned are opportunities earned.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 04-26-2013
Senior Member
 
Join Date: Jul 2006
Posts: 937
Thanks: 1
Thanked 20 Times in 20 Posts
Rep Power: 9
aa3jy is on a distinguished road
Re: Can a Diesel be Flooded with Fuel?

Quote:
Originally Posted by Invictus322 View Post
My question is can a diesel be flooded with fuel?
Don
Most definitely Yes! I can attest to this with (3) bent con rods..confirmed by Mack Boring upon tear down. If you have compression release(s) use 'em and 'kill' the fuel and crank the engine a couple of times as a precaution if after unsuccessful starts.

Fuel is about UN-compressible as water..
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 04-26-2013
Senior Member
 
Join Date: Jul 2007
Location: Truckee, CA
Posts: 8,341
Thanks: 2
Thanked 114 Times in 112 Posts
Rep Power: 8
dabnis is on a distinguished road
Re: Can a Diesel be Flooded with Fuel?

They can also "run away" from having too much fuel ingested, "BOOM""



"Action" starts at about 1minute and 30 seconds

Paul T

Last edited by dabnis; 04-26-2013 at 11:45 AM.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 04-26-2013
mad_machine's Avatar
Sea Sprite 23 #110 (20)
 
Join Date: Dec 2012
Location: Atlantic City, NJ
Posts: 3,186
Thanks: 5
Thanked 69 Times in 60 Posts
Rep Power: 2
mad_machine is on a distinguished road
Re: Can a Diesel be Flooded with Fuel?

Diesel runaways are scary. My father will tell of the time in 1970 on the USS Holland when he was cheif engineer. One of the new guys was starting up a generator, a "rock crusher" with an upper and lower crankcase. you had to fill the sump on the upper crankcase before starting so the bearings would not run dry before the oilpump started to supply pressure.

New guy has his finger on the fill button while talking and overfills the engine. On start up, all the excess oil gets pulled into the combustion chamber and when they went to pull the emergancy air cut off.. the flaps broke.

All they could do was evacuate the engine bay and wait for the engine to explode
__________________
Art Haberland
__________________

In the end all that matters is how fully you loved, how gently you lived, and how gracefully you let go of things that did not belong to you -Buddha

__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 04-26-2013
Irrationally Exuberant
 
Join Date: Jul 2007
Location: Northern Virginia
Posts: 1,303
Thanks: 6
Thanked 6 Times in 6 Posts
Rep Power: 8
arf145 is on a distinguished road
Re: Can a Diesel be Flooded with Fuel?

Quote:
Originally Posted by chucklesR View Post
I never crank with the water closed - that's the best way I know of to kill an impeller.
I, on the other hand, do crank with the water closed on occasion, and I haven't seen any impeller damage. We're only talking a few seconds, and I don't think it is even dry that whole time.
__________________
Tom K

2000 Beneteau 331
Northern Chesapeake Bay

Ambition is a poor excuse for not having enough sense to be lazy ~ Steven Wright
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 04-27-2013
boz86's Avatar
Senior Member
 
Join Date: May 2012
Location: Maryland, US
Posts: 142
Thanks: 6
Thanked 3 Times in 3 Posts
Rep Power: 3
boz86 is on a distinguished road
Hmmm, impeller starting at $20 or engine starting at $7,000?
__________________
Sailing "Horizons," a Hunter 31, from the Middle Chesapeake around Solomons Island.
I can keep a secret, it's the people I tell who can't.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

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

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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diesel fuel lines -Universal 3cyl diesel argofred Diesel 8 04-18-2011 04:39 PM
Flooded Diesel Hilllman General Discussion (sailing related) 4 02-03-2011 03:30 AM


All times are GMT -4. The time now is 10:56 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.