fuel leaks
Thread Starter
|
Junior User
Joined: Jul 2008
Posts: 73
Likes: 0
From: Tacoma, wa
fuel leaks
So I got a fuel leak at one of the injectors at the base of the injector is it because I didn't tighten the injector enough?
Little backround:
I purchased a used engine for 150 bucks with blown head gaskets, changed them and put the new engine in cause my old one was seized (bought it in this condition). When viewing the injectors the ones from the old engine looked like it was in way better condition so I put the injectors from the old into the new one along with new orings and copper washers. I also have a fuel leak towards the rear of the engine but when I look I can't see where its coming from but I can see it under the engine and I know its diesel.
Little backround:
I purchased a used engine for 150 bucks with blown head gaskets, changed them and put the new engine in cause my old one was seized (bought it in this condition). When viewing the injectors the ones from the old engine looked like it was in way better condition so I put the injectors from the old into the new one along with new orings and copper washers. I also have a fuel leak towards the rear of the engine but when I look I can't see where its coming from but I can see it under the engine and I know its diesel.
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
Looks can be deceiving ...
You need to clean up the mess to ensure you find the leak or toss parts at until you do ...
Leaking Fuel around an Injector is 9 times out of 10 the return Tees, Return lines, Return o-rings!
Are the Tees down all the way tight, Did you use Vaseline or something to lube the o-rings before assembly... ???
Did you purchase an Injector Installation kit to get the o-rings and copper Injector seals... ??? (If yes where did you purchase it)
However it could also be the Injector line (hard line).
Where do you see Fuel under the engine, right rear of the motor around the bell housing and block... ???
This could be the Injection Pump leaking from the weep hole and running out the valley drain, Place a clean piece of paper under the Injection pump and run the motor for a couple minutes, then pull the paper, does it have fuel on it!
-Enjoy
fh : )_~
You need to clean up the mess to ensure you find the leak or toss parts at until you do ...
Leaking Fuel around an Injector is 9 times out of 10 the return Tees, Return lines, Return o-rings!
Are the Tees down all the way tight, Did you use Vaseline or something to lube the o-rings before assembly... ???
Did you purchase an Injector Installation kit to get the o-rings and copper Injector seals... ??? (If yes where did you purchase it)
However it could also be the Injector line (hard line).
Where do you see Fuel under the engine, right rear of the motor around the bell housing and block... ???
This could be the Injection Pump leaking from the weep hole and running out the valley drain, Place a clean piece of paper under the Injection pump and run the motor for a couple minutes, then pull the paper, does it have fuel on it!
-Enjoy
fh : )_~
Thread Starter
|
Junior User
Joined: Jul 2008
Posts: 73
Likes: 0
From: Tacoma, wa
Looks can be deceiving ...
You need to clean up the mess to ensure you find the leak or toss parts at until you do ...
Leaking Fuel around an Injector is 9 times out of 10 the return Tees, Return lines, Return o-rings!
Are the Tees down all the way tight, Did you use Vaseline or something to lube the o-rings before assembly.
Did you purchase an Injector Installation kit to get the o-rings and copper Injector seals
However it could also be the Injector line (hard line).
Where do you see Fuel under the engine, right rear of the motor around the bell housing and block...
This could be the Injection Pump leaking from the weep hole and running out the valley drain, Place a clean piece of paper under the Injection pump and run the motor for a couple minutes, then pull the paper, does it have fuel on it!
-Enjoy
fh : )_~
You need to clean up the mess to ensure you find the leak or toss parts at until you do ...
Leaking Fuel around an Injector is 9 times out of 10 the return Tees, Return lines, Return o-rings!
Are the Tees down all the way tight, Did you use Vaseline or something to lube the o-rings before assembly.
Did you purchase an Injector Installation kit to get the o-rings and copper Injector seals
However it could also be the Injector line (hard line).
Where do you see Fuel under the engine, right rear of the motor around the bell housing and block...
This could be the Injection Pump leaking from the weep hole and running out the valley drain, Place a clean piece of paper under the Injection pump and run the motor for a couple minutes, then pull the paper, does it have fuel on it!
-Enjoy
fh : )_~
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
From the bottom up ... You mean from the threads???
That would be impossible unless the injector is cracked, never heard of that happening!
Clean up the injector and surrounding area dry of all fuel.
Take a strip of a paper towel and roll it up into a log about 1/4" in diameter and wrap it around the base of the injector just under the hex and tie it ensuring it touches nothing but the injector, then run the motor for a couple of minutes, then check the paper towel for fuel.
-Enjoy
fh : )_~
That would be impossible unless the injector is cracked, never heard of that happening!
Clean up the injector and surrounding area dry of all fuel.
Take a strip of a paper towel and roll it up into a log about 1/4" in diameter and wrap it around the base of the injector just under the hex and tie it ensuring it touches nothing but the injector, then run the motor for a couple of minutes, then check the paper towel for fuel.
-Enjoy
fh : )_~
Thread
Thread Starter
Forum
Replies
Last Post
nw_ia_guy
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
12
Jan 20, 2015 10:15 PM
tfrugal
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
10
Oct 3, 2008 04:26 AM
yabbieboy
1987 - 1996 F150 & Larger F-Series Trucks
9
Mar 3, 2005 06:24 PM
