Rubber fuel lines on 1997 dodge cummins

[savage54]

I've search the net and YouTube, but can't find a good write up on how to change the rubber fuel lines on a 1997 Dodge Cummins. I have the Larry'sB fuel line kit that replaces the two lines in the engine bay. Tried the search on here and have found a good write up, so I'm wondering if anybody has a good source on the best way to replace the lines.

 

[GAmes]

First, make note of which line is which. Nothing more frustrating than removing the old ones and not being sure where to hook up the new ones. Removing the fuel filter allows access to the return line fitting by the head. Then it is a simple matter of removing thee old lines and replacing them. If the metal lines along the frame are corroded badly you might want to run the rubber all the way to the tank. If that is the case I recommend you start the job with the tank nearly empty so that you can drop it a few inches to gain workspace. Somewhere along the line I was forced to remove the quick disconnect fittings that are near the transmission on mine. I don't remember the exact circumstances but I do remember laying in a parking lot in north TX with a newly acquired hacksaw. I double clamped the lines to prevent the rubber hoses from sliding off the metal lines.

 

[savage54]

First, make note of which line is which. Nothing more frustrating than removing the old ones and not being sure where to hook up the new ones. Removing the fuel filter allows access to the return line fitting by the head. Then it is a simple matter of removing thee old lines and replacing them. If the metal lines along the frame are corroded badly you might want to run the rubber all the way to the tank. If that is the case I recommend you start the job with the tank nearly empty so that you can drop it a few inches to gain workspace. Somewhere along the line I was forced to remove the quick disconnect fittings that are near the transmission on mine. I don't remember the exact circumstances but I do remember laying in a parking lot in north TX with a newly acquired hacksaw. I double clamped the lines to prevent the rubber hoses from sliding off the metal lines.

Thanks GAmes, the metal lines are in great shape was a west coast truck. Did you remove the start to get more access? I'm going to remove fuel filter since its time to replace. Do you still have to go from the top to get the hose next to the head? or is it easier from under the truck?
Thanks Dave

 

[GAmes]

No, I didn't remove the starter. I don't think you can reach the connection behind the fuel filter from underneath. Maybe if the truck was on a lift.

 

[Bob4x4]

The return line behind the injection pump can only be accessed from the top.Pay carefull attention to the routing along the bell housing and pull it out the bottom

 

[savage54]

Hey guys, I think the fuel lines have been messed with, so I'm not sure if the routing of the return line is wright. I want to put it wright. here are some pictures of the lines. I see the return line against the head looks like it was starting to split plus up where the feed line is clamped the return line is being squeezed ,so it looks like I caught it before any problems. I think I'll double clamp each end? the return line is tie wrapped to the oil dip stick and to the feed line.

 

[GAmes]

It is logical that they have been replaced in the past.

 

[savage54]

It is logical that they have been replaced in the past.

I think for sure the return line ,but it looks like the feed line still has its crimped clamp down by the transmission ,my dad was the second owner at 36,000 miles on the truck, and I know he never replaced any lines, then he passed away and I ended up with the truck 11 years ago. Now with 123,452 miles on it. GAmes did both the lines attach to the clip on the transmission? If not I'll just secure the return line somehow to release the hard bend it has at the point where the feed line clamps on the upper part.
Thanks Dave

 

[GAmes]

I don't recall a clip on the transmission. If it had one it is long gone, either from the dozen replacements or the G56 upgrade.

 

[savage54]

Well finally got the two fuel lines changed!!!!! What a pain, the hose under the manifold was stuck, had to use a razor bladed, feed line had to use razor to.The return line was so tight it was pinched, I have know idea how it worked properly. I don't even know if they were the wright hoses for a diesel.The new hoses were not easy, with the interlinear it was tuff trying to get them on,the clamps that I got for the hoses were still to big, so I used smaller ones so I doubled clamped the return line on both ends Here are the pictures of the two old hoses and pictures of the in stall.

 

[AEdelheit]

Hmm looks oddly similar to a post on classicbroncos.com!! Glad you got it figured out.

 

[savage54]

Hmm looks oddly similar to a post on classicbroncos.com!! Glad you got it figured out.

Yes it is, I thought I would post it in both to get every body's thought's on this to figure it out , their is not much in video's on 1997 dodge 2500 4x4 cummins fuel line replacement thats any good..
Thanks to all Dave