Reply
 
Thread Tools Search this Thread Display Modes
 
Old 04-29-2019, 04:45 PM   #1
TJM
Senior Member
 
City: Essex, Ct.
Country: USA
Vessel Name: Harmony
Vessel Model: 1982 41' President
Join Date: May 2013
Posts: 165
Pressure testing fuel system ?

I am upgrading my fuel delivery system and want to verify that there are no leaks anywhere. Specifically I am adding a distribution manifold, replacing a fuel priming pump and the aged hoses that are easily accessed.

Any ideas ? I guess I could get a small hand pump and soap up the connections looking for bubbles ? What PSIG ?
I have Ford Lehmans with 3/8" fuel lines.
__________________
Advertisement

__________________
Tom and Cheryl
"Harmony"
1982 41' President
TJM is offline   Reply With Quote
Old 04-29-2019, 10:52 PM   #2
Guru
 
twistedtree's Avatar
 
City: Gloucester, MA
Country: USA
Join Date: Jan 2013
Posts: 4,771
If you can valve off the engine itself and the fuel tank(s), then Iíd pump it up to 10-20 psi and check for leaks. Modern tanks are tested to only a couple PSI, so definitely donít pressurize it. Re the engine, I have no idea what pressure it could take, so safest to valve it off.
__________________

__________________
www.MVTanglewood.com
twistedtree is offline   Reply With Quote
Old 04-29-2019, 11:41 PM   #3
Guru
 
City: Between Oregon and Alaska
Country: US
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 1,435
Sometimes it's easier to find small leaks with air pressure. Since the lines and manifold will be new and empty, I'd put a gauge and air fitting on the system and pump it up to 10 pounds or so and see if it holds for a few hours.
Lepke is offline   Reply With Quote
Old 04-30-2019, 05:54 AM   #4
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 19,121
A outboard style fuel bulb will make enough pressure to find a leak.

A strip pf paper towel in each fitting and an overnight will show even a tiny leak.
FF is offline   Reply With Quote
Old 04-30-2019, 07:57 AM   #5
Guru
 
kchace's Avatar
 
City: Brookline, NH
Country: USA
Vessel Name: Blue Heaven
Vessel Model: Albin 43 classic double cabin, twin 135 Lehmans
Join Date: Sep 2013
Posts: 1,467
All good advice, just make sure you don't pump the tanks up beyond 3psi and usually 2psi is enough for checking for tank leaks.


Ken
kchace is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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





All times are GMT -5. The time now is 05:41 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012