Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 10-12-2013, 04:33   #1
Senior Cruiser
 
bletso's Avatar

Cruisers Forum Supporter

Join Date: Nov 2013
Location: Louisville, KY
Boat: Globe, cutter/ketch,38
Posts: 546
Best material for diesel

There is a thread going on now that has me wondering what is the best material for diesel tanks? I had the same problem a while back and had to remove a 140 gal custom made steel tank. I was lucky as my floor boards lift out. With the boom I lifted and set aside my 160 gal water tank and lifted the offending fuel tank out the companionway hatch with 1/2 inch clearance. I replaced it with a 40 gal aluminum tank. It was weeping diesel and very rusted.

I am doing a major refit at this time and would like to add some of the capacity back with a custom tank shape. (I took all the measurements from the old one).

Dale
Sailing Vessel Vigah / Blog | Refit of a neglected sailboat
__________________

__________________
bletso is offline   Reply With Quote
Old 10-12-2013, 05:00   #2
Certifiable Refitter/Senior Wannbe
 
Wotname's Avatar

Cruisers Forum Supporter

Join Date: Jan 2008
Location: South of 43 S, Australia
Boat: Van DeStat Super Dogger 31'
Posts: 7,331
Re: Best material for diesel

Quote:
Originally Posted by bletso View Post
There is a thread going on now that has me wondering what is the best material for diesel tanks? I had the same problem a while back and had to remove a 140 gal custom made steel tank. I was lucky as my floor boards lift out. With the boom I lifted and set aside my 160 gal water tank and lifted the offending fuel tank out the companionway hatch with 1/2 inch clearance. I replaced it with a 40 gal aluminum tank. It was weeping diesel and very rusted.

I am doing a major refit at this time and would like to add some of the capacity back with a custom tank shape. (I took all the measurements from the old one).

Dale
Sailing Vessel Vigah / Blog | Refit of a neglected sailboat
Depends on what "best" means for you. IMO, it is hard to go past a heavy walled mild steel tank but I actually used thin walled stainless steel (316) because that was available to me and SS suited the exterior maintenance requirements the best.
__________________

__________________
All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find it was vanity: but the dreamers of the day are dangereous men, for they may act their dreams with open eyes, to make it possible. T.E. Lawrence
Wotname is offline   Reply With Quote
Old 10-12-2013, 05:05   #3
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: Best material for diesel

Monel, has good characteristics and is flexable will take a beating.
__________________
" Wisdom; is your reward for surviving your mistakes"
captain58sailin is offline   Reply With Quote
Old 10-12-2013, 05:53   #4
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,583
Images: 240
Re: Best material for diesel

An excellent article on Diesel Fuel Tank Design
Diesel Fuel Tank Design | PassageMaker
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 10-12-2013, 06:06   #5
Marine Service Provider
 
boatpoker's Avatar

Join Date: Nov 2008
Location: Toronto, Ontario or Bahamas
Boat: Benford 38 Fantail Cruiser
Posts: 2,593
Re: Best material for diesel

No problem with any of the commonly used materials IF they are properly installed
__________________
That hysterical laughter you hear as you sail a way in your "new" boat ..... is the seller.
boatpoker is offline   Reply With Quote
Old 10-12-2013, 06:35   #6
Writing Full-Time Since 2014
 
thinwater's Avatar

Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 4,338
Re: Best material for diesel

Good article. I'm a licensed API tanks inspector (500-10,000,000 gallons) and I've seen too many tanks, inside and out.

Relavent to boats was an odd failure in a 20 year old tank that had been cleaned but out of service for 5 years. The inside was pristine, except where the copper float had come to rest on the floor... where it had drilled a 1/2-inch hole through 0.25 plate. There are supposed to be stops to keep the float off the bottom. Watch those dissimilar metals on steel too.
__________________
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 10-12-2013, 06:47   #7
Registered User

Join Date: Apr 2011
Location: vancouver, canada
Boat: hunter 31
Posts: 609
Re: Best material for diesel

My ideal tank would be steel, with a galvanized exterior, a water removal sump with a top mounted water removal pickup tube. If space permitted, an access hatch at the top for periodic inspection and clean out.
__________________
shorebird is offline   Reply With Quote
Old 10-12-2013, 12:21   #8
Marine Service Provider

Join Date: May 2012
Location: New Orleans
Boat: We have a problem... A serious addiction issue.
Posts: 3,940
Re: Best material for diesel

My ideal would be titanium. But at double the cost of stainless....

Otherwise I like fiberglass. If done properly it eliminates corrosion issues which is the major source of failure.
__________________
Greg

- If animals weren't meant to be eaten then they wouldn't be made of food.
Stumble is offline   Reply With Quote
Old 16-12-2013, 15:57   #9
Registered User
 
d design's Avatar

Join Date: Oct 2013
Location: Whangaroa, New Zealand
Posts: 242
I would have a layer of ss and than insulating material and another layer of ss. Than i would have a heating system run from the engine heat to keep the fuel at 45c. It would have a water saparator underneath the tank and an inpection port on top. than a special electrical shock syetem to kill diesel bug instantly :-D
__________________
d design is offline   Reply With Quote
Old 16-12-2013, 16:07   #10
Registered User
 
NahanniV's Avatar

Join Date: Mar 2011
Location: On the Boat
Boat: Finnsailer 38
Posts: 1,143
Re: Best material for diesel

All the tanks on my 1979 boat, including diesel, are plastic. Heavy rotomolded custom to the boat, no problems yet.

If well built, I think plastic has a lot of positives: no corrosion, limits condensation, can see level (if translucent), easy to fabricate.

Cheers,
JM.
__________________

__________________
NahanniV is offline   Reply With Quote
Reply

Tags
diesel

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 09:38.


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.