Thread Tools Display Modes
Old 05-11-2010, 06:49 AM   #1
Join Date: May 2010
Posts: 1
Fuel intake

My 1981 36' Albin trawler does not like to take fuel.* I have cleaned out the air vents as best I can and still the fuel blows back and you have to pull the nozzle out so that air can settle it back down before slowly trying to add more.* I have tried this at two different locations with the same results.* Any ideas?

jbulluck is offline   Reply With Quote
Old 05-11-2010, 09:17 AM   #2
C lectric's Avatar
City: Somewhere
Country: somewhere
Join Date: Oct 2007
Posts: 1,349
RE: Fuel intake

I've had some fun with this in the past including getting me and half the boat covered in a blowback -ooops.

The tank vent may be too small and not allow air to escape as fast as needed. Take a look at fittings and any reducers. The actual tank fitting may be large enough but if a P.O. used reducers to make a small hose fit, that may cause trouble

If a dip occurs in the vent line hose it can fill with fuel and make air escape difficult or impossible.

The hose may be kinking as you replace it.

The wong type of hose material can get mushy and maybe swell partly closed over time.

The screen, there usually is one, inside the actual vent fitting on the hull may have plugged over the years or maybe bugs have decided to make a nest. The screen is there for safety reasons but it may need to be cleaned.

Sometimes the fuel vendors pumps can deliver fuel at a rate that many boats cannot deal with. Most vendors can turn it down. If the nozzle barely fits in your tank fill be suspicious.
The ones with a nozzle about the size of a standard car fillup can't flow enough fuel to cause a problem aboard most boats unless a problem above is present. They sure can be slow sometimes though.

High delivery rates can cause serious foaming inside the tank which could cover the vent and help to cause a blowback. SOme additives may also make foaming worse.
C lectric is offline   Reply With Quote

Thread Tools
Display Modes

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
Cooling water intake markpierce Power Systems 14 11-12-2011 07:58 AM
Westerbeke Air Intake Hose Needed dvd Power Systems 2 11-08-2011 08:45 AM
1978 34' - dip fuel tanks to measure fuel? meridian Marlow - Mainship 6 10-14-2011 10:52 AM
Fuel gauge for hard to get at fuel tanks on a 1980's Trader 39 Trawler Yacht Ian Streten Electrical and Electronics & Navigation 11 08-26-2011 03:20 AM

All times are GMT -5. The time now is 01:58 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012