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General Information => Troubleshooting => Topic started by: ReubenG on March 10, 2014, 05:34:14 pm
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A) why would this happen? (the pump and lines are only a few years old)
B) I ordered a new line. Replacement seems fairly simple. Anything I should know?? (I have the Bentley)
(http://[URL=http://s844.photobucket.com/user/rgranskog86/media/fuelinjline2_zpsb71b9e6d.jpg.html][IMG]http://i844.photobucket.com/albums/ab10/rgranskog86/fuelinjline2_zpsb71b9e6d.jpg)[/URL][/img]
(http://i844.photobucket.com/albums/ab10/rgranskog86/fuelinjline2_zpsb71b9e6d.jpg)
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(1981 vw rabbit diesel 1.6 n/a)
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Prothe?
Is the 4th injection pump bolt right? The one at the rear of the pump?
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yeah, i think it's the bottom rear on the pump. But when purchasing, it was obvious that I needed the #2 line I hope -- http://www.partsplaceinc.com/products/product-detail.aspx?keyword=VW+Diesel+Injection+Line+68-130-302&sku=13651
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could this happen if I accelerate too quickly? Bentley says to accelerate from 35mpg to 55mpg in like 15 seconds... in 3rd or 4th gear...
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A) why would this happen? (the pump and lines are only a few years old)
B) I ordered a new line. Replacement seems fairly simple. Anything I should know?? (I have the Bentley)
Don't lose the little rubber holders, don't adjust timing without loosening the pipes first, keep the pump mounts tight.
Do not stand, sit, or pry on the pipes ;D
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I'm not planning on adjusting the timing... I can just plug in a new line... right?
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Yes, after verifying that all 4 pump mounting bolts are tight you can "just" plug the line in. Make sure that all the lines smoothly connect to the pump and injector without needing to be pried into position. If they are under stress, they will crack.
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I see. Thank you. Also, it seems that it might be difficult to torque the injector line nuts down properly (with the line coming out of them and all...) just snug them down fairly tight I guess?
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Yeah, just twist the wrench until you feel it give........
No, you simply gently tighten then down really only enough to not leak when running. If you just mindlessly tighten them down, you mushroom the sealing conical tip and then you shell out ANOTHER $23 (or whatever it was) for some more lines. Whatever happened to common sense?
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I think spec is 18ft-lbs. basically as loose as possible without leaks, which is surprisingly loose.
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Tighten them down a little looser than you think they need it.
Then watch them when you start it up, swipe a finger to see if it gets wet.
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Because the fuel delivery is so low on these cars, you may need to take it for a spin around the block before you'll notice a leak.
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only been driving these 5 years and have a few being daily driven by family. all old originals and never had this happen.
clamps loose , start each one by hand, then tighten with wrench. finally tighten clamps
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thanks to partsplaceinc.com for sending me the part I needed in less than 2 days. :)
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I got it done very easily. I ended up NOT re-installing the clamp for cylinders 1 & 2 injector lines because I would have had to force them closer together... this might have been what caused the breakage of the line in the first place. I observed the vibration of the #2 line shortly after starting the engine and that line probably vibrates the least amount of the 4, so I'm not worried.
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I got it done very easily. I ended up NOT re-installing the clamp for cylinders 1 & 2 injector lines because I would have had to force them closer together... this might have been what caused the breakage of the line in the first place. I observed the vibration of the #2 line shortly after starting the engine and that line probably vibrates the least amount of the 4, so I'm not worried.
Line #1 or #2 will most likely break very soon with no clamps on them. Believe me, I left the clamps off before I knew any better, and broke a line within 2 days of driving it again. It's amazing how much those clamps actually do.
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In the pic it looks very close to the aluminum tab on the pump, near where it broke.
Those weren't somehow vibrating against each other?
There is a place with more durable #2 lines but I can't remember where,.. ebay?
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There is no way I can install the clamp without causing extreme pressure to the line. And I don't think there is another location for that clamp...
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Then you probably have a bent or wrong line in your set.
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Bent or wrong line or you need to loosen all the lines at both the injectors and pump and allow them to "relax" into a position where they're not stressed and then re-tighten and install clamps.
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In the pic it looks very close to the aluminum tab on the pump, near where it broke.
Those weren't somehow vibrating against each other?
There is a place with more durable #2 lines but I can't remember where,.. ebay?
That pump is rotated so far back and close to the lines,.. you might think about jumping the timing a tooth so you can pull the top of the pump forward and away from the lines,.. makes it easier to change glow plugs too.