1.6 sb td engine metal injector pipe fracture

[Hillshy]

Hi all,
Yesterday i broke my vw vanagon, i have an SB td 1.6 td in the back. whilst driving out and about it started running like a dog, running on 3 cylinders
upon investigation i noticed one of metal injector pipes had snapped just above injector on cylinder number 2. i limped home (about 4km) not very far and i changed the metal pipe and fired up the motor. it ran lovely for about 2 minutes then stalled. for hours i tried to restart it, i checked the stop sol which i eventually swapped for another which i know it working. check timing on engine and pump timing all seemed to be correct. it just would not fire, i was not getting any diesel to the injectors for some reason.

in the end i swapped the pump, it's sorta running now but i still need to set the new pump up, but the main reason for this post is to see if this has happened to anyone else. i'm sure others have had pipe fractures but do these kill the pumps? should i have bleed the pump in a special way?

any ideas would be great cos i confused.com?

Stu (hillshy)

[LoneWolf]

ive had the same problem with solid lines, they always seem to fracture at the tip, the domed section inside the nut.

 i know this is going to sound stupid, but did you bleed the air out of the injector lines once youd replaced them?

 i popped an inline bulb-styled hand primer in the line from the filter to the pump so i could get some pressure behind the fuel to help fill the pump again, and its been the most useful mod ive done so far

[vanbcguy]

Yeah, been there done that with the cracked line - #2 seems to be the one to go for sure.  Just as an FYI, Cohline make replacement lines and they've changed the shape of #2 - it doesn't have the same bend that always cracks on the VW ones.

Top causes of broken hardlines:

#1.  Adjusted the timing and didn't take the tension out of the lines afterwards (by loosening off all the line fittings and re-tightening them)
#2.  Missing bottom pump bolt (the one that lives under the distributor head on the pump)
#3.  Missing line clamps

Pretty unlikely anything happened to the pump as a result of the line breaking.  What you might have done though is gotten some crud in an injector while it was open, or accidentally loosened off the delivery valve on the pump.

[arb]

I had a line brake once because I failed to re-install the line clamps that prevent the lines from viborating. After replacement and bleeding, it ran as before.

My car has a aux electric lift pump I use to prime the pump if I allow it to get air inside.

[Rabbit on Roids]

ok, so, i put my line clamps back on. and guess what, its quieter. its amazing how much the pipes chatter when its running. my audi makes the pipes chatter really bad at idle.