Trying to do blue spring upgrade...
Thread Starter
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Laughing Gas
Joined: Apr 2007
Posts: 779
Likes: 0
From: Burton, Texas
Trying to do blue spring upgrade...
...and I can't get the fuel return line off. Using a 7/8 and 11/16 (I think) and it will not budge. I'm afraid I'm going to break something. I thought about taking the return line loose at the bottom and putting it in a vise to take off, but I've read that I need a fuel line disconnect tool. I don't have one and can't go get one until later today.
Any suggestions?
Any suggestions?
Senior User
Joined: Jan 2017
Posts: 428
Likes: 2
From: Central Illinois
In a pinch you can use a marker cap. Cut it down the side to slip over the fuel line. Then use some pliers to push the cap into the spring lock. I would try to heat up the 2 fuel line nuts with a heat gun if you have one first tho. Worth a shot and probably would take less time
Senior User
Joined: Jan 2017
Posts: 428
Likes: 2
From: Central Illinois
Definitely not a good idea hehehe
The heat gun is the only thing heating method i would recommend on diesel fuel related parts. It's the safest because it can't get it hot enough to ignite unless there is a lot vapors. Diesel needs a flame basically to ignite and even then it is still hard to light
The heat gun is the only thing heating method i would recommend on diesel fuel related parts. It's the safest because it can't get it hot enough to ignite unless there is a lot vapors. Diesel needs a flame basically to ignite and even then it is still hard to light
Thread Starter
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Laughing Gas
Joined: Apr 2007
Posts: 779
Likes: 0
From: Burton, Texas
I thought about that. I'll give a try. I got the kit with the cover, but last time I did it I had the kit without the cover.
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Senior User
Joined: Nov 2014
Posts: 1,776
Likes: 1,584
From: France
What a coincidence, just did mine and the fuel line was really tight too. Took the top right screw off the cover and that gave me more room to get at both nuts. Removed the cable at the socket just in front (for the fan?) in case something slipped, one really good effort and it loosened.
There was a touch of rust on the end of the fuel line, but once it was loose it came straight off with my hand. Put it back on with a touch of oil and all looking good - and above 3000rpm I can tell there's lots more go
There was a touch of rust on the end of the fuel line, but once it was loose it came straight off with my hand. Put it back on with a touch of oil and all looking good - and above 3000rpm I can tell there's lots more go
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Lead Driver
Joined: Jul 2004
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From: Foothills, CA
Good deal! 
I was afraid of causing a leak at the cover/fuel flange, and then was worried I might kink the hard lines if I didn't take that clamp loose. I tell you: getting the bolt back in on the clamp was probably the toughest part of the whole job!
It's good to know it can be done the way you guys did -- has to be the quickest blue spring method yet!
I was afraid of causing a leak at the cover/fuel flange, and then was worried I might kink the hard lines if I didn't take that clamp loose. I tell you: getting the bolt back in on the clamp was probably the toughest part of the whole job!
It's good to know it can be done the way you guys did -- has to be the quickest blue spring method yet!
Thread Starter
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Laughing Gas
Joined: Apr 2007
Posts: 779
Likes: 0
From: Burton, Texas
Good deal!
I was afraid of causing a leak at the cover/fuel flange, and then was worried I might kink the hard lines if I didn't take that clamp loose. I tell you: getting the bolt back in on the clamp was probably the toughest part of the whole job!
It's good to know it can be done the way you guys did -- has to be the quickest blue spring method yet!
I was afraid of causing a leak at the cover/fuel flange, and then was worried I might kink the hard lines if I didn't take that clamp loose. I tell you: getting the bolt back in on the clamp was probably the toughest part of the whole job!
It's good to know it can be done the way you guys did -- has to be the quickest blue spring method yet!
Rocks!
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