Go Back   Ford F150 Forum - Community of Ford Truck Fans > Pre-1997 F150 > 1987 - 1996 F150
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 06-24-2010, 11:31 AM   #1
Junior Member
 
Join Date: Jun 2010
Posts: 4
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default exposed wires in fuel tank

While replacing the sending unti and fuel pump I have noticed that the wiring is totally exposed. The fuel pump that I purchased includes two crimp connectors (similar to the below pic) that also leave wires exposed. My assumption is that the part manufacturer understands these crimp connectors will leave the wires exposed. With this said, how can this setup be safe?? Why isn't a fire guaranteed when current starts flowing through these exposed wires? What am I missing here?
tlunsford is offline   Reply With Quote
Old 06-24-2010, 12:50 PM   #2
Member
 
Join Date: Jun 2010
Posts: 40
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

ive always wondered about that a little, because i had to do my pump on my old 2000 chevy and the wires were exposed where they were soldered on the pump. but as long as the wires dont touch (arc) then it will be fine.
chris89883 is offline   Reply With Quote
Old 06-24-2010, 02:02 PM   #3
Senior Member
 
Join Date: Apr 2009
Location: MN
Posts: 1,976
Mentioned: 0 Post(s)
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Default

Spark starts fires... as long as there is no spark, no fire. Plus, there is no air while submerged in fuel so a fire cannot start anyways.
18386 is offline   Reply With Quote
Old 06-25-2010, 01:18 AM   #4
Member
 
Join Date: Sep 2009
Posts: 32
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default That's what I thought

Quote:
Originally Posted by jhelrey View Post
Spark starts fires... as long as there is no spark, no fire. Plus, there is no air while submerged in fuel so a fire cannot start anyways.
But it's still a little freaky to see. As long as the connections are good, no spark. In some ways I suppose it's safer than trying to fuel-proof the connections, potentially introducing air into the mix.

Car companies, Ford included, are guilty of many things but I doubt Ford would follow any practice knowingly that was dangerous, pun intended, they've been 'burned' before - vis a vis the Pinto.

Correction - I HOPE they wouldn't.

Last edited by AlanS; 06-25-2010 at 05:02 AM.
AlanS is offline   Reply With Quote
Old 06-25-2010, 03:00 AM   #5
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,714
Mentioned: 2 Post(s)
Thanked 396 Times in 353 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

Where there are electric motors, there is spark. I've tested enough fuel pumps to know they do spark, but I don't know why the gas tank doesn't go KABOOM!!!
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 06-25-2010, 03:23 AM   #6
Senior Member
5 Year Member
 
Fast Hampster's Avatar
 
Join Date: Jun 2008
Location: Moscow, Russia
Posts: 1,150
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Fast Hampster Send a message via Skype™ to Fast Hampster
Default

According to "field tests" some crazy russians performed - it's not really that simple to set fuel in the tank on fire. I heard about people throwing lit cigarettes into the tank, and nothing happened. I don't think it's a good idea to try it anyways lol. If electrical connection is good - there will be no spark at the connection point. And gas doesn't conduct electricity good enough, so there's no current between wires.
__________________
There are three ways to do it - good one, bad one and russian one
Fast Hampster is offline   Reply With Quote
Old 06-25-2010, 12:02 PM   #7
Senior Member
 
hackersmovie's Avatar
 
Join Date: Nov 2009
Location: Maryland
Posts: 919
Mentioned: 0 Post(s)
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Just call me Sean View Post
Where there are electric motors, there is spark. I've tested enough fuel pumps to know they do spark, but I don't know why the gas tank doesn't go KABOOM!!!
Where the motor is, there is no air, so while a electric motor will spark when exposed to air, it won't submersed in fuel.

Quote:
Originally Posted by Fast Hampster View Post
According to "field tests" some crazy russians performed - it's not really that simple to set fuel in the tank on fire. I heard about people throwing lit cigarettes into the tank, and nothing happened. I don't think it's a good idea to try it anyways lol. If electrical connection is good - there will be no spark at the connection point. And gas doesn't conduct electricity good enough, so there's no current between wires.
I've seen/heard the same thing. Gasoline is very hard to ignite (the liquid). The FUMES are what typically makes it go BOOM. I've SEEN someone throw a lit cigarette into a small bucket of gasoline and it just went out. Now, hold a lit match or cigarette just over the bucket..... BOOM!

So, while gasoline is a combustible liquid, it's actually pretty hard to ignite, the fumes however........
hackersmovie is offline   Reply With Quote
Old 06-25-2010, 09:25 PM   #8
We'd do it
 
Just call me Sean's Avatar
 
Join Date: May 2008
Location: Orlando,Fl.
Posts: 31,714
Mentioned: 2 Post(s)
Thanked 396 Times in 353 Posts
Feedback Score: 1 reviews
Send a message via Yahoo to Just call me Sean
Default

Quote:
Originally Posted by hackersmovie View Post
Where the motor is, there is no air, so while a electric motor will spark when exposed to air, it won't submersed in fuel.



I've seen/heard the same thing. Gasoline is very hard to ignite (the liquid). The FUMES are what typically makes it go BOOM. I've SEEN someone throw a lit cigarette into a small bucket of gasoline and it just went out. Now, hold a lit match or cigarette just over the bucket..... BOOM!

So, while gasoline is a combustible liquid, it's actually pretty hard to ignite, the fumes however........
Well the pump isn't totally submersed all the time.

I have thrown cigarettes into cups of gas and it put out the cigarette and didn't ignite the fuel.
__________________
Quote:
Originally Posted by Early Cuyler
Fights begin, fingerprints are took, days is lost, bail is made, court dates are ignored, cycle is repeated.
Just call me Sean is offline   Reply With Quote
Old 06-26-2010, 03:55 PM   #9
Member
 
Join Date: Sep 2009
Posts: 32
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default

Quote:
Originally Posted by Just call me Sean View Post
I have thrown cigarettes into cups of gas and it put out the cigarette and didn't ignite the fuel.
Is that under the category of "Hold my beer and watch this?"

Last edited by AlanS; 06-26-2010 at 03:57 PM.
AlanS is offline   Reply With Quote
Old 06-26-2010, 04:59 PM   #10
Senior Member
5 Year Member
 
Fast Hampster's Avatar
 
Join Date: Jun 2008
Location: Moscow, Russia
Posts: 1,150
Mentioned: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Fast Hampster Send a message via Skype™ to Fast Hampster
Default

Quote:
Originally Posted by AlanS View Post
Is that under the category of "Hold my beer and watch this?"
I suppose that it's a good way to quit smoking
__________________
There are three ways to do it - good one, bad one and russian one
Fast Hampster is offline   Reply With Quote
Old 06-26-2010, 04:59 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel tank sending unit or Fuel Gauge? jwilson 1987 - 1996 F150 6 02-26-2012 10:50 AM
fuel pump replacement and fuel tank upgrade alwayshear Pre- 1987 / Classic Corner 34 03-19-2011 10:46 AM
fuel pump switch wires hotrod351 1987 - 1996 F150 1 05-30-2010 10:21 PM
1992 F-150 XLT Fuel Gage, Fuel Pump, Gas Tank Problems jerome.nichols 1987 - 1996 F150 1 09-03-2009 03:53 AM
1st time using rear fuel tank on new-to-me used '95; tank is not engaging jettboi 1987 - 1996 F150 6 07-28-2009 11:16 AM


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


Join F150 Forum

 

The Mustang Source
All times are GMT -4. The time now is 05:05 PM.


Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.