The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > Dockside Chat
Search

Notices

Random Quote: YOU CAN'T POLISH A TERD
Reply
 
Thread Tools Search this Thread
Old 10-16-2012, 12:15 PM
  #1    
Senior MemberCaptains Club Member
 
Join Date: Jun 2001
Location: CT
Posts: 15,715
Default Oil Tank Vent Problem

Last time oilman filled up it stuck - he cam eback wiped down house took apart vent outside and said cobwebs in it. Like not enough to clog much but I let it go. stunk half the summer....

Today he comes and puts in 5 gallons (I need about 100) and leaves - again with oil on the side of the house and down the vent. Why would that happen with the screw type fill pipe and an auto shutoff on the truck? And (2) what is the problem - my vent line clogged? I have a call in and they are real slow about service recently
__________________
1st Cav Div Air Assault Infantry RVN
-Can Do........ and .......Carry On -
LI Sound Grunt is offline   Reply With Quote
Old 10-16-2012, 12:53 PM
  #2    
Senior MemberCaptains Club Member
 
Join Date: Jul 2006
Location: RI
Posts: 4,052
Default

A clogged vent will not cause oil to come out the vent. sounds like they overfilled the tank and oil filled the vent pipe. It should be sloped properly and drain back into the tank, but there could be a low spot.

Even though there is an auto shotoff, they still manually add oil. My parents had a tank rupture due in part to an overfill. I say in part because there was some internal corrosion as well.
BACKTOTHESEA is offline   Reply With Quote
 
Old 10-16-2012, 01:48 PM
  #3    
Senior MemberCaptains Club Member
 
Join Date: Mar 2005
Location: Boat,Town Cove, Cape Cod. Live south of Boston.
Posts: 1,254
Default

There is a special whistle fitting with a dip tube on the vent line connection to the tank. When the oil man connects the fill nozzle it has the threaded collar to make a air thight seal to the fill tube thus when oil is pumped in the displaced air leaves through the whistle fitting and out the vent line, that's why when ever you get a fill you always hear that whistling. When the oil gets to the top of the tank it hits the bottom of the whistle dip tube and stops whistling, thats how the oil guy knows the tank is full. I am not sure they have a automatic shutoff like a gas nozzle, if your whistle is not working they could overfill the tank till it comes out the vent line but there not supposed to fill a tank without a working whistle.
PF-88 is offline   Reply With Quote
Old 10-16-2012, 01:52 PM
  #4    
Admirals Club
 
Johnny Dreamer's Avatar
 
Join Date: Sep 2011
Posts: 7,020
Default

Finally a real vent vent.
Johnny Dreamer is offline   Reply With Quote
Old 10-16-2012, 01:54 PM
  #5    
Admirals Club
 
Johnny Dreamer's Avatar
 
Join Date: Sep 2011
Posts: 7,020
Default

Quote:
Originally Posted by PF-88 View Post
There is a special whistle fitting with a dip tube on the vent line connection to the tank. When the oil man connects the fill nozzle it has the threaded collar to make a air thight seal to the fill tube thus when oil is pumped in the displaced air leaves through the whistle fitting and out the vent line, that's why when ever you get a fill you always hear that whistling. When the oil gets to the top of the tank it hits the bottom of the whistle dip tube and stops whistling, thats how the oil guy knows the tank is full. I am not sure they have a automatic shutoff like a gas nozzle, if your whistle is not working they could overfill the tank till it comes out the vent line but there not supposed to fill a tank without a working whistle.
Hence the phrase, "whistle while you work".









Not really.
Johnny Dreamer is offline   Reply With Quote
Old 10-17-2012, 06:33 AM
  #6    
Senior MemberCaptains Club Member
 
Join Date: Jun 2001
Location: CT
Posts: 15,715
Default

Quote:
Originally Posted by PF-88 View Post
There is a special whistle fitting with a dip tube on the vent line connection to the tank. When the oil man connects the fill nozzle it has the threaded collar to make a air thight seal to the fill tube thus when oil is pumped in the displaced air leaves through the whistle fitting and out the vent line, that's why when ever you get a fill you always hear that whistling. When the oil gets to the top of the tank it hits the bottom of the whistle dip tube and stops whistling, thats how the oil guy knows the tank is full. I am not sure they have a automatic shutoff like a gas nozzle, if your whistle is not working they could overfill the tank till it comes out the vent line but there not supposed to fill a tank without a working whistle.
Thanks to all - he said the delivery person stoped at 5 gals beacus eit didn't sound right . There is oil coming out the vent and the fill pipr and splashed on the house just likelast time. And I checked the tank it is about 60 to a hundred gallons down - he normally comes when its a 100 gallons down. He is gonna check it out next week at which time I am gonna fore him cause 399 is insane and everyone else is about 350. I just want him to se that its not full and that is not why it's messing up.
__________________
1st Cav Div Air Assault Infantry RVN
-Can Do........ and .......Carry On -
LI Sound Grunt is offline   Reply With Quote
Old 10-17-2012, 07:33 AM
  #7    
Admirals Club
 
Join Date: Sep 2012
Location: PA & VA
Posts: 813
Default

Unscrew the outside vent cap and I'll bet you'll find a solid mass of spider web. These webs are strong enough to stop the flow of air out through the vent. If the delivery guy has a rubber donut on his nozzle this will pressurize the whole system and can cause the splash that you've experienced.

You can clean off the side of the house with a little detergent and water.
__________________
Karl

Some people try to turn back their odometers. Not me, I want people to know "why" I look this way. I've traveled a long way and some of the roads weren't paved. -Will Rogers
KarlS is offline   Reply With Quote
Old 10-17-2012, 08:05 AM
  #8    
Senior MemberCaptains Club Member
 
Join Date: Jun 2001
Location: CT
Posts: 15,715
Default

Quote:
Originally Posted by KarlS View Post
Unscrew the outside vent cap and I'll bet you'll find a solid mass of spider web. These webs are strong enough to stop the flow of air out through the vent. If the delivery guy has a rubber donut on his nozzle this will pressurize the whole system and can cause the splash that you've experienced.

You can clean off the side of the house with a little detergent and water.
Got the spiderwebs out last time - made the mistake of putting a shop vacuum hose on it - trust me there IS oil in the vent pipe....now I havethat mess to clean....
__________________
1st Cav Div Air Assault Infantry RVN
-Can Do........ and .......Carry On -
LI Sound Grunt is offline   Reply With Quote
Old 10-17-2012, 08:33 AM
  #9    
Senior MemberCaptains Club Member
 
Join Date: Jul 2005
Location: Long Island Sound, CT
Posts: 12,759
Default

Be careful.

If the vent is clogged/not working and they fill the tank, it could compromise the tank.

Then, big $$ cleanup and they will blame you.

Had this happen to a client.

We got some $$ from the delivery company but not full restitution.
__________________
1998 HS 245 Vector CC
2007 Evinrude 250 etec rigged and rockin!
fichtion is offline   Reply With Quote
Old 10-17-2012, 08:53 AM
  #10    
Senior MemberCaptains Club Member
 
Join Date: Oct 2006
Location: Downeast, North Carolina
Posts: 4,989
Default

As posted before, the pitch of the vent pipe is backward. How old is the tank? Check to see if the tank has shifted due to a rotten leg or sunk into whatever it's on. Maybe it just wasn't piped correctly. Tank piping is very specific now and the vent should have a swing joint in it. Take a pic and I can tell you if it's done right.

BTW, spider webs didn't cause this. I delivered oil for several years and installed tanks for 30 years. Laundry detergent first and then there is a special oil odor spray the oil company can get from it's supplier.
__________________
"If Heaven ain't a lot like Dixie, I don't want to go"
davedowneast is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0