Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 16-01-2009, 09:12   #16
Senior Cruiser
 
sandy daugherty's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: near Annapolis
Boat: PDQ 36 & Atlantic 42
Posts: 1,178
I had 2 1/2 gallons of fresh, clean, dry diesel in a 6 gallon tank in an outside rain proof shed. It had been baja filtered. The vent cap was loosened to prevent distortion of the tank. 4 months later I sucked a half cup of water out of the bottom. Every drop of water came from condensation. Or the tooth fairy. Temperatures in the shed varied from over a hundred degrees F on a summer afternoon to 70 that night. Winter variations were at lower temps but about the same percentage difference betwee high and low.

Since neither I nor the tank have read pascoe's article, its probably just a case of ignorance.
__________________

__________________
sandy daugherty is offline   Reply With Quote
Old 16-01-2009, 14:56   #17
CF Adviser
Moderator Emeritus
 
Hud3's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: Virginia
Boat: Island Packet 380, now sold
Posts: 8,929
Images: 49
Fight water in the fuel any way you can. Keep the tank topped up to discourage condensation. Replace the rubber O-rings on the deck fill cap every year, and add a bit of silicone grease to them. Install a Racor filter if you don't have one. Avoid fuel docks that have a bad rep. But, in spite of all your precautions, water still may get into the tank.

Here's an idea. Buy one of those rubber squeeze bulbs with the hoses on each side that WM sells for outboard engines. They come without any fittings on the ends. Cut the rubber hoses to convenient lengths. On the suction side, install a length of 3/8" copper tubing long enough to reach the bottom of your diesel tank. Secure it with a hose clamp. After the boat has sat quietly for a time, open up the tank's access port, or remove the pickup tube if you don't have one, and gently insert the copper tube into the tank's nether regions. Squeeze the bulb and extract a pint or so of diesel into a clear plastic peanut butter jar (cleaned up, of course).

You can then judge the general cleanliness of your fuel, and also remove any water or sludge that's accumulated in the bottom of the tank.
__________________

__________________
Hud
Hud3 is offline   Reply With Quote
Old 16-01-2009, 16:13   #18
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Quote:
Since neither I nor the tank have read pascoe's article, its probably just a case of ignorance.
You could very well be right.
__________________
The Blue Dot Campaign. This Changes Everything.
DeepFrz is offline   Reply With Quote
Old 18-01-2009, 22:06   #19
Registered User

Join Date: Jan 2007
Location: Fremantle Australia
Boat: Schioning 12.3 "Wilderness" Bi-Rig under construction
Posts: 558
Send a message via Skype™ to Whimsical
Quote:
Originally Posted by sandy daugherty View Post
Since neither I nor the tank have read pascoe's article, its probably just a case of ignorance.


I think Sandy would have to be in line for an award. He just keeps comming up with such gems

Mike








__________________
Whimsical is offline   Reply With Quote
Old 19-01-2009, 04:53   #20
Registered User
 
bastonjock's Avatar

Join Date: Nov 2008
Location: Lincolnshire UK
Boat: Mac 26x
Posts: 169
why dont the manufacturers put a toughened glass strip on the side of the tank?
__________________
bastonjock is offline   Reply With Quote
Old 19-01-2009, 05:13   #21
Registered User

Join Date: Apr 2006
Posts: 4,413
My tank has no access port. It has two pick upl one for the engine and one for the heater.

I have added two racors with a manifold and switch over and replace the "used" filter on alternate seasons.

I assume that there is crud in the tank as it has been in use for 23 years. I try to keep it topped up so the volume of air inside is minimal.

I assume that the pickups do not extend to the bottom of the tank. My tank has a sloped bottom to one corner (to fit the hull shape) and this must be were the crud accumulates. The pick ups are close to the the deep corner. The fuel gauge sender is in a shallower corner so it cannot truly measure "empty" as there will always be fuel below it's lowest reach.

I have never had any fuel problems which caused loss of power, or mis fires etc. I suspect when the crud which may include algae rises high enough I'll be faced with installing a port (above the deep corner) and cleaning the tank.

So far so good. But this can't last.
__________________
Sandero is offline   Reply With Quote
Old 19-01-2009, 08:22   #22
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
Quote:
I have never had any fuel problems which caused loss of power, or mis fires etc. I suspect when the crud which may include algae rises high enough I'll be faced with installing a port (above the deep corner) and cleaning the tank.
I hope, for your sake, that this happens at a convenient time at your slip. My experience was in slop off the North West end of Cuba and just enough crud got sucked up to plug the fuel line at a 90 deg. bend. Filter was new and still looked clean so switching filters would not have helped. I never checked if it was asphaltene deposits or algae deposits, because at the time it really didn't matter.
__________________

__________________
The Blue Dot Campaign. This Changes Everything.
DeepFrz is offline   Reply With Quote
Reply

Tags
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
BMW diesel and black steel diesel fuel tanks johnpair Engines and Propulsion Systems 12 08-01-2009 15:30
Old diesel fuel MV Engines and Propulsion Systems 13 07-12-2008 22:28
Are there grades of Diesel Fuel? drh1965 Engines and Propulsion Systems 17 05-10-2007 05:39
Some free diesel fuel? will n Engines and Propulsion Systems 3 30-05-2006 22:13
diesel fuel storage?? cadye Engines and Propulsion Systems 21 21-09-2005 13:38



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:31.


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.