Join the C34 Association Today!
[C34 Home] [C34Tech Notes] [C34 Tech Wiki] [Join!]
Please login or register.
Advanced search  

News:

Pages: [1]   Go Down

Author Topic: Well that stinks...(like diesel)  (Read 357 times)

0 Members and 1 Guest are viewing this topic.

Oldlaxer1

  • Forum - Seaman
  • **
  • Karma: 0
  • Posts: 27
    • View Profile
Well that stinks...(like diesel)
« on: September 06, 2020, 04:17:14 AM »

Preparing for our first extended trip and wanted to top off the fuel tank. (first time fueling up for me on this boat)  Using jerry jugs I added just under 5 gallons from the first jug. Gauge showed just under 3/4 full. Filling from the second one I hear the gurgling in the hose with maybe 2 gallons left in the jug.  Nothing from the vent hose btw.  Ok, thatís full enough for this trip.  Head down below and get hit with the smell of diesel. Start tracking it down. Started in the head behind the sink and there was the stream and stink. Got out the oil absorbing pads and started soaking it up. Open the bilge and it has migrated there.  More pads, booms. Spent a couple of hours flushing and sopping up diesel.  Of course the whole boat stinks, aft cabin too. We leave on our anniversary cruise The next morning and thank God my wife never complains once.  Said she only smells it a little when the boat is closed up. Maybe I should send her for a nose checkup 😎  Weíre getting home this afternoon and my first task after unpacking is to find the source of the leak. Iím guessing the vent hose is the culprit.  Welcome to boat ownership....
Logged
John Novotny
1987 C34 #298

scgunner

  • Forum - Petty Officer 1st Class
  • *****
  • Karma: 5
  • Posts: 427
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #1 on: September 06, 2020, 08:14:48 AM »

John,

It doesn't sound like the vent hose to me. If you overfilled the tank and the vent hose, even if the hose did have a hole in it the hose won't hold that much fuel, a pint maybe a little more. It sounds like you've lost a lot more than that. Since it's the first time you've fueled the boat I'd suspect a leak somewhere between the old fuel level and the vent. I'd pull the aft cabin panel, the leak will probably be self evident.
Logged
Kevin Quistberg                                                 Top Gun 1987 Mk 1 Hull #273

Ron Hill

  • Forum - Master Chief Petty Officer of the Navy
  • ********
  • Karma: 55
  • Posts: 7100
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #2 on: September 06, 2020, 02:16:56 PM »

John : Here's what I'd advise:
Look in the compartment under the head sink at the connections to the Racor filter and the fuel pump. Check the condition of the fuel hose!
Remove the port side panel in the aft cabin and it'll expose the fuel tank, fill hose, hose from tank to engine and the aft vent hose.

You'll just have to have someone pour in some fuel from the top so you can see what is happening at the tank.  Good hunting

A few thoughts
Logged
Ron, Apache #788

scgunner

  • Forum - Petty Officer 1st Class
  • *****
  • Karma: 5
  • Posts: 427
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #3 on: September 07, 2020, 07:19:27 AM »

Ron,

That's the first thing I thought of too, anytime I have a leak I immediately think hoses, connections, attachments, however it sounds like John's problem started when he added fuel. It seems to me that if it was a problem with the fuel plumbing the leak would have showed itself even without adding fuel.

John,

If you pull that panel you should see some evidence of a leak since diesel doesn't evaporate very fast.
Logged
Kevin Quistberg                                                 Top Gun 1987 Mk 1 Hull #273

Oldlaxer1

  • Forum - Seaman
  • **
  • Karma: 0
  • Posts: 27
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #4 on: September 08, 2020, 04:04:09 AM »

Thanks everyone. Ron, I checked the plumbing portion from tank to Racor to engine and it is all dry. Hoses are all in good shape. 
I didn't get  a chance to do any more  sleuthing yesterday as it was our 35th anniversary and my bride wanted to take our dear friends for a sail.  I hope to get in the aft cabin tonight to see what I can find.  The good news is the odor has diminished quite a bit.  My Hatteras forum group recommends Odor Gone (which I already have) for diesel smells  so I'll be using that tonight as well. 
Logged
John Novotny
1987 C34 #298

KWKloeber

  • Forum - Master Chief Petty Officer of the Navy
  • ********
  • Karma: 32
  • Posts: 3664
  • "Positive Impact" 1984 C-30 #3573 trbsfk M-25
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #5 on: September 09, 2020, 01:18:57 AM »

John

I am putting in a vote for the vent or a leak near the top of the tank -- since it appared only when adding fuel. 

Say the vent hose was disconnected or a bad hole, or a bad leak on the top (fuel sender gasket, cracked fitting?) or near it (crack in a weld?) the fuel woldn't leak as fast as you were pouring so you would end up with a gurgle, but (depending on the size) the leak could spil quite a bit to the bilge, etc.) 

Some owners add a fuel whiste on the vent hose to indicate when the tank is topped off - if there is one, possibly it came loose or the case is broken?

I was on a project site where an underground tank was a great spot to dispose of waste chemicals -- the fill port would top off, but the next week the level was down and they could dispose of a couple more cans of waste.   The leaky tank was just not leaking as quickly as they were filling it, but over a week it leaked enough for another 5 or ten gallons to be added.  Added to the soil and bedrock, that is, and turned into a million dollar oops cleanup that's still ongoing since 1996.   

OdoBan works well for those type smells, from my experience.
Logged
Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain

scgunner

  • Forum - Petty Officer 1st Class
  • *****
  • Karma: 5
  • Posts: 427
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #6 on: September 15, 2020, 08:45:21 AM »

Whistle on the vent hose, what a great idea!
Logged
Kevin Quistberg                                                 Top Gun 1987 Mk 1 Hull #273

Ron Hill

  • Forum - Master Chief Petty Officer of the Navy
  • ********
  • Karma: 55
  • Posts: 7100
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #7 on: September 15, 2020, 02:34:54 PM »

Guys : The whistle in the overflow line is not a panacea!!  Practical Sailor had an article (years ago) that the whistles tended to get clogged when the diesel got into them.  After being wet and then dry with diesel they failed and became silent.
 
Once clogged - Not even Lauren Bacall (Sp?) couldn't get them to whistle!!!   :cry4`

A thought 
« Last Edit: September 15, 2020, 02:39:18 PM by Ron Hill »
Logged
Ron, Apache #788

scgunner

  • Forum - Petty Officer 1st Class
  • *****
  • Karma: 5
  • Posts: 427
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #8 on: September 16, 2020, 07:33:20 AM »

When I want my fuel tank topped up such as at season's end, I pull the vent hose transom end and put it in a spare fuel can then fuel. This allows me to top it right up with out the worry of it overflowing into the water, which as we know can be quite a problem these days.
Logged
Kevin Quistberg                                                 Top Gun 1987 Mk 1 Hull #273

Oldlaxer1

  • Forum - Seaman
  • **
  • Karma: 0
  • Posts: 27
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #9 on: September 17, 2020, 05:55:23 AM »

When I want my fuel tank topped up such as at season's end, I pull the vent hose transom end and put it in a spare fuel can then fuel. This allows me to top it right up with out the worry of it overflowing into the water, which as we know can be quite a problem these days.
Great idea!
Logged
John Novotny
1987 C34 #298

Jim Hardesty

  • Forum - Master Chief Petty Officer
  • *******
  • Karma: 10
  • Posts: 1176
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #10 on: September 17, 2020, 06:19:01 AM »

Quote
When I want my fuel tank topped up such as at season's end, I pull the vent hose transom end and put it in a spare fuel can then fuel. This allows me to top it right up with out the worry of it overflowing into the water, which as we know can be quite a problem these days.

Very good to keep fuel out of the water.  In no way am I criticizing.   My concern is that the boat, and fuel, heat up more out of the water under a cover then it ever does in the water.  I've seen boats stored on the hard leaking fuel from heat expansion.  Not good either.  I fill up in the fall but take care not to top-up and overfill.

Jim
 
Logged
Jim Hardesty
2001 MKII hull #1570 M35BC  "Shamrock"
sailing Lake Erie
from Commodore Perry Yacht Club
Erie, PA

scgunner

  • Forum - Petty Officer 1st Class
  • *****
  • Karma: 5
  • Posts: 427
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #11 on: September 17, 2020, 07:34:38 AM »

Jim,

If I do get into an overfill situation where I've got fuel in the vent line I'll generally run the motor for 15 to 30 min to create a bit of expansion space at the top of the tank. I like to keep the tank topped up in the off season but you're right you do need some expansion space in the top of the tank.
Logged
Kevin Quistberg                                                 Top Gun 1987 Mk 1 Hull #273

Ron Hill

  • Forum - Master Chief Petty Officer of the Navy
  • ********
  • Karma: 55
  • Posts: 7100
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #12 on: September 17, 2020, 02:52:41 PM »

All : When pulled for the winter, you need to leave room for expansion of the fuel.  You also need to watch the travel lift operator that the boat is not too bow high.  Lift operators tend to raise the bow so that any water/snow in the cockpit will run out of the aft scuppers!!

A thought 
Logged
Ron, Apache #788

KWKloeber

  • Forum - Master Chief Petty Officer of the Navy
  • ********
  • Karma: 32
  • Posts: 3664
  • "Positive Impact" 1984 C-30 #3573 trbsfk M-25
    • View Profile
Re: Well that stinks...(like diesel)
« Reply #13 on: September 17, 2020, 03:59:28 PM »

Quote

Whistle on the vent hose, what a great idea!


Believe me, its one of those good oncepts that fail in practical use (in many sailboats anyway.) 
If on a power boat with tons of freeboard and you can put plenty of vertical rise in the hose so the whistle never ever lies in fuel, that's one thing.  It's like a check valve on a bilge pump.  Good concept until it doesn't work when we need it to.

Good concept, poor execution.
Logged
Twenty years from now you'll be more disappointed by the things you didn't do, than by the ones you did.
So throw off the bowlines.  Sail away from the safe harbor.  Catch the tradewinds in your sails.
Explore.  Dream.  Discover.   -Mark Twain
Pages: [1]   Go Up