Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-01-2014, 18:09   #1
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,882
Refueling with Engine Running

My PO ( a diesel mechanic) mentioned that I couldn't run the Yanmar 2GM while refueling. I don't get why. I have a fill port, a pickup port, a vent with a T ftg for the fuel return line.

I don't see why I can't fill the tank while engine runs. Does this make sense?
__________________

__________________
Blue Crab is offline   Reply With Quote
Old 26-01-2014, 18:13   #2
Senior Cruiser
 
colemj's Avatar

Cruisers Forum Supporter

Join Date: Oct 2005
Location: Presently on US East Coast
Boat: Manta 40 "Reach"
Posts: 10,049
Images: 12
Re: Refueling with Engine Running

The only way I could see it mattering is if the tank was very empty and filling it caused a lot of air to foam the fuel and this air found its way into the pickup.

But how onerous is it to shut of the engine anyway?

Mark
__________________

__________________
www.svreach.com

You do not need a parachute to skydive. You only need a parachute to skydive twice.
colemj is offline   Reply With Quote
Old 26-01-2014, 18:16   #3
Senior Cruiser
 
Vasco's Avatar

Cruisers Forum Supporter

Join Date: Apr 2004
Location: Toronto
Boat: CS36Merlin, "La Belle Aurore" Ben393 "Breathless"
Posts: 7,133
Re: Refueling with Engine Running

What does your mechanic say the reason is. Quite often I've topped up my tank while motoring.
__________________
Rick I
Toronto in summer, Bahamas in winter.
http://groups.yahoo.com/group/beneteau393/
Vasco is offline   Reply With Quote
Old 26-01-2014, 19:51   #4
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,882
pirate Re: Refueling with Engine Running

I'm doing my best not to talk to the guy for a couple of reasons. As far as expertise goes, the OP is the real deal, I think. He's with the big CAT dealer here. Still, I don't see how it could suck air beyond Mark's scenario.

This whole diesel stuff is new to me. Maybe it doesn't matter but I've operated a lot of machines and turning them off often resulted in great difficulty getting them going again.

My 2GM has ~500hrs. I'm probably worrying about nothing.
__________________
Blue Crab is offline   Reply With Quote
Old 26-01-2014, 20:04   #5
Registered User
 
markpierce's Avatar

Join Date: Aug 2010
Location: Central California
Boat: M/V Carquinez Coot
Posts: 3,413
Re: Refueling with Engine Running

Never saw a need to run the engine while docked at a fuel station. Regardless, with engine enclosed and fuel entry on deck, can't imagine the harm.
__________________
Kar-KEEN-ez Koot
markpierce is offline   Reply With Quote
Old 26-01-2014, 20:23   #6
Registered User
 
Pato's Avatar

Join Date: Mar 2011
Location: Sidney b.c
Boat: Ct 37
Posts: 162
Re: Refueling with Engine Running

Quote:
Originally Posted by Blue Crab View Post
My PO ( a diesel mechanic) mentioned that I couldn't run the Yanmar 2GM while refueling. I don't get why. I have a fill port, a pickup port, a vent with a T ftg for the fuel return line.

I don't see why I can't fill the tank while engine runs. Does this make sense?

I would imagine it is because you have a tee fitting in the vent/return so when filling the air will push the fuel being returned up and out the vent or cause other spit back issues
__________________
Pato is offline   Reply With Quote
Old 26-01-2014, 21:31   #7
Registered User
 
glenn.225's Avatar

Join Date: Jan 2008
Location: Kingston, ON
Boat: Albin Vega 27'
Posts: 342
Re: Refueling with Engine Running

Quote:
Originally Posted by Pato View Post
I would imagine it is because you have a tee fitting in the vent/return so when filling the air will push the fuel being returned up and out the vent or cause other spit back issues
That would be the only reason that I could see, unless the fuel guy didn't like it.

When I installed my diesel tank tank I only had one fitting for return/vent so I made a T-fitting with a drop tube down to about 3/4 dept of tank for fuel return and open at top of tank for vent. Like this.
Well you get the idea, I work better in metal than new drawing software. BTW it was done in DIA (it's free) just got it yesterday but it seems nice. Similar to MS Visio.
Attached Thumbnails
Click image for larger version

Name:	Tank tee.jpeg
Views:	92
Size:	5.1 KB
ID:	74771  
__________________
Glenn
glenn.225 is offline   Reply With Quote
Old 26-01-2014, 21:35   #8
Senior Cruiser
 
jackdale's Avatar

Cruisers Forum Supporter

Join Date: Mar 2008
Location: Calgary, AB, Canada
Posts: 5,040
Images: 1
Re: Refueling with Engine Running

Quote:
Originally Posted by markpierce View Post
Never saw a need to run the engine while docked at a fuel station. Regardless, with engine enclosed and fuel entry on deck, can't imagine the harm.
Stopping the engine for refueling at a fuel dock is the law in Canada.

Where else?
__________________
ISPA Yachtmaster Ocean Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203,204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)
jackdale is offline   Reply With Quote
Old 27-01-2014, 04:42   #9
Don't ask if you can't handle it
 
sailorboy1's Avatar

Cruisers Forum Supporter

Join Date: Jul 2007
Location: On the boat somewhere
Boat: Hunter 410
Posts: 12,308
Re: Refueling with Engine Running

its' like running with scissors
__________________
jobless, houseless, clueless, living on a boat and cruising around somewhere
sailorboy1 is offline   Reply With Quote
Old 27-01-2014, 05:37   #10
Registered User
 
Blue Crab's Avatar

Join Date: Sep 2009
Location: Hurricane Highway
Boat: Cal 29
Posts: 3,882
pirate Re: Refueling with Engine Running

Thanks all. The fact that fuel could spit out the vent is enough for concern. I started thinking about it based on the recent similar thread about topping off underway.
__________________
Blue Crab is offline   Reply With Quote
Old 27-01-2014, 06:30   #11
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 4,328
Re: Refueling with Engine Running

Quote:
Originally Posted by jackdale View Post
Stopping the engine for refueling at a fuel dock is the law in Canada.

Where else?
Everywhere. It is also generally illegal to leave the fueling point (get back in your car or wonder).

Many folks believe this is an ignition hazard and is only related to gasoline. That is not true. A MAJOR reason for the rule is that folks (cars, tankers, boats) are more likely to pull off and forget the filler line if the engine is running. I've seen this happen at 500 gpm. It's not pretty. Starting the engine should also help them to think if they are ready to go (disconnected).
__________________
Gear Testing--Engineering--Sailing

Writing full-time since 2014.
Bookstore:http://sail-delmarva.blogspot.com/20...ook-store.html
thinwater is offline   Reply With Quote
Old 27-01-2014, 06:32   #12
Registered User
 
sww914's Avatar

Join Date: May 2009
Location: Punta De Mita
Boat: Vagabond 39 Hull # 1
Posts: 1,842
Re: Refueling with Engine Running

I've done it, but we just bought 30 gallons or whatever, not topping it up. Nothing more to report.
__________________
Steve
http://www.landfallvoyages.com
sww914 is offline   Reply With Quote
Old 27-01-2014, 07:43   #13
Registered User
 
S/V Alchemy's Avatar

Join Date: May 2008
Location: Toronto
Boat: Custom 41' Steel Pilothouse Cutter
Posts: 4,574
Re: Refueling with Engine Running

Quote:
Originally Posted by markpierce View Post
Never saw a need to run the engine while docked at a fuel station. Regardless, with engine enclosed and fuel entry on deck, can't imagine the harm.
I can. Glugging diesel into a tank from which fuel is being drawn could a) stir up sediments and tax the filter (although you have a problem if your tanks are this dirty), or b) introduce in the form of air bubbles a series of wee diesel embolisms into the line.

I see few compelling reasons to leave the engine running during a fuel up, and can imagine probably more reasons than I've thought of to consider it sub-optimal.
__________________
Can't sleep? Read www.alchemy2009.blogspot.com for fast relief. Can't read? Avoid www.volumesofsalt.blogspot.com, because it's just personal reviews of sea books.
S/V Alchemy is offline   Reply With Quote
Old 27-01-2014, 08:43   #14
Wayfaring Mariner
 
captain58sailin's Avatar

Cruisers Forum Supporter

Join Date: Mar 2009
Location: Homer, AK is my home port
Boat: Skookum 53'
Posts: 4,045
Images: 5
Re: Refueling with Engine Running

If your system is so weak that you are afraid to shut down your engine when refueling, you have some work to do. As a rule every fuel dock I have ever been to, requires you to shut down before refueling. It might not apply because of you, but the guy next to you that is filling up his gas boat. Your engine is a heat & ignition source.
__________________
" Wisdom; is your reward for surviving your mistakes"
captain58sailin is offline   Reply With Quote
Old 27-01-2014, 08:55   #15
Freelance Delivery Skipper..
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: UK/Portugal
Posts: 20,189
Images: 2
Send a message via Skype™ to boatman61
pirate Re: Refueling with Engine Running

And... refuelling while the engine is running at sea from a canister by gravity feed is gonna have zero effect.. boat motion will cause more..
__________________


Born To Be Wild
boatman61 is offline   Reply With Quote
Reply

Tags
engine, fuel

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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 01:45.


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.