300Tdi injector leaking

chris snell

Administrator
Callsign: NW5W
Staff member
Well, this is disappointing. I was driving down the road today and smelled diesel. I immediately suspected the spill lines (been there, done that) and sure enough, the green fabric on one of them was dark, soaked with diesel, and diesel was pouring out of both ends of the line.

Both ends were split down the length, as though they'd been cut with a knife.

Well, my quest to find the perfect replacement continues.

@Napalm00 , do you have a link for the urethane stuff you use? I found the perfect urethane line at a random auto parts store in a tiny town in Kansas but I've never been able to find it since.

8B92C414-FA81-46BE-B392-4CE90430EEED.jpeg
 

chris snell

Administrator
Callsign: NW5W
Staff member
Also, what's the plastic to use if you want to do the melt-on semi-rigid style?

I am so sick of dealing with these. This makes three spill line failures on my truck. Want to fix it once and for all.
 

chris snell

Administrator
Callsign: NW5W
Staff member
Update: BlendDoor got back to me super quickly. He said that he thinks he got a bad batch in mid-2020 and suspects pandemic-related QC issues. He's sending me some replacement line. NIce guy and fast response. We'll see how it goes.

That said, I still want to kill this problem once and for all. Feels like hard line (like the kind used for the fuel lines) would be the ticket.
 

JimC

Super Moderator
Staff member
I‘ve used heat shrink tube and created a collar at each end of the tubes as a way to add a little extra stiffness and resilience to the ends. It also presents a tidier appearance than the cut ends especially when using the fabric braided tubing. Might just be voodoo, but I’ve not had any leaky spill back pipes after doing this.
 

chris snell

Administrator
Callsign: NW5W
Staff member
I‘ve used heat shrink tube and created a collar at each end of the tubes as a way to add a little extra stiffness and resilience to the ends. It also presents a tidier appearance than the cut ends especially when using the fabric braided tubing. Might just be voodoo, but I’ve not had any leaky spill back pipes after doing this.

Can you link me to the tube?
 

Napalm00

Technical Excellence Contributor

You can buy this stuff or go to any small engine shop and just ask for urethane fuel line. It doesn't require any clamps or anything squeeze it over the end of the banjo and it'll never come off. Even on the straight banjos that don't have the flare .

I'm in the middle of moving but I'll go check my garage and see if I have extra

The only downside to this stuff is that it kinks more easily than the fiber reinforced hose so when you are putting it on you need to make sure that you orient the banjos so that it does not kink.

I also have been using the copper banjo crush washers that they use on Cummins now way better than the standard Rover ones.

PXL_20201128_001846455.jpg


Found an old picture looks like I'm using a combination of blue and yellow probably just ran out of one
 
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JimC

Super Moderator
Staff member
If you're talking about the little plastic clamps that have teeth and snap together, I tried those and it didn't work. They seem to not have even clamping pressure so there is a little un-clamped area by the connection point. The hoses got pinched and leaked a lot.
 

chris snell

Administrator
Callsign: NW5W
Staff member
Are you guys running the black rubber insulated engine cover thing? I've had to trim mine back quite a bit. I wonder if the lines get messed up when that thing gets pulled off.
 

RBBailey

NAS-ROW Addict
Callsign: KF7KFZ
Are you guys running the black rubber insulated engine cover thing? I've had to trim mine back quite a bit. I wonder if the lines get messed up when that thing gets pulled off.
I had mine on and off, but I was lucky enough not to have any of these issues with my spill lines. My cover was actually warped a bit as well, rubbed against the lines.
 
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