300 Tdi fule leak Questions!! - Defender Source
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  #1  
Old February 23rd, 2005, 12:31 AM
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300 Tdi fule leak Questions!!

Hey,

Well, I got the truck completely ready for the CC tonight. Switched out the intercooler, oil change, new fuel filter and a few other last minute checks. Just as I thought it was all good, I noticed a good size puddle under the car. It seems that there is a decent leak coming from the back side of my fuel pump. More specifically, the bottom fuel line out to my cylinder. I am leaving early Thurs and driving the 800+ miles to NM. I guess my question, is there going to be a serious problem driving the truck in this condition?? Is it a common problem? Is there a chance that this a sign that the whole shebange is going to let go?? The last thing I need is to be stranded in the desert! I don't have time to do a good fix. Any help is much appreciated. Pendy??

Dave
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  #2  
Old February 23rd, 2005, 01:17 AM
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I'd definitely get under and see what the issue is. Last thing you want is the fuel line to blow out on you, and without seeing the line and leak I can't issue a guess on if that would happen or not.

Either way, it's definitely going to cut into your cruising range per tank and cost money by the drip.

-Hans
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  #3  
Old February 23rd, 2005, 01:58 AM
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I just went through a similar leak issue, the shut off solonoid was leaking and covered the botttom of the injector pump with fuel whenever the engine was running. I was losing 100km of fuel per tank.
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  #4  
Old February 23rd, 2005, 08:37 AM
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I had a similar issue after a few thousand miles of break in. All it required was a tightening of the banjo bolts.
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Old February 23rd, 2005, 08:55 AM
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Thanks guys. I will try that tonight. This must have been going on for a while unnoticed since my fuel range has been terrible lately. Dave, do you just tighten the farthest back bolt or the one closer to the pump as well?
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Old February 23rd, 2005, 09:24 AM
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Both, however the farthest back was the one that was leaking. I was careful not to overtighten, however their was a surprising amount of play.
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  #7  
Old February 23rd, 2005, 01:38 PM
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My 90 is doing the same thing Enough to cover the underside of the truck. It's a very slight drip at idle. Sadly tightening the union doesn't seem to help. Maybe it was over tightened by a previous owner. Don't quite know what the fix is at the moment, might try some PTFE tape round the joint. I'd be interested in hearing of any fixes short of buying new pipes
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  #8  
Old February 23rd, 2005, 02:08 PM
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Dave I think the pipes you are talkin' about are the fuel returns right?
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Old February 23rd, 2005, 09:03 PM
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I don't know but I don't think so. They are the 4 that come off the back of the furl injector. The bottom one is leaking. David's online, do you know what the little lever is that is at the rear of the injector pump attached to the circular do-dad??? I just knocked it while I was trying to tighten the bolts, then played with it, now I can't figure out if it was up or down. I think I just started the self destruct sequence.
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  #10  
Old February 23rd, 2005, 09:32 PM
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David, I think that is just a bleed. I'd have to take a look at the manual though. Up or down shouldn't matter (don't get too anxious!!).
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  #11  
Old February 24th, 2005, 01:25 AM
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That's it, self destruct initiated
The 4 pipes out the back lead to the injectors.
The fuel return is on top of the pump I think.
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  #12  
Old February 27th, 2005, 02:48 AM
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Switched out the intercooler
You slipped that in & hoped I wouldn't notice. What have you got in there now? Does it do the job, how's the exhaust gas temp? Spill the beans David.
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  #13  
Old February 27th, 2005, 11:29 PM
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Hey,

Its a Twisted Performance. I will post details for you. I am dead tired right now, just got back from CC and had major breakage. Long trip!
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  #14  
Old February 28th, 2005, 02:32 AM
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Sorry to hear about the breakage. hope it won't prove too expensive. Did you fix the fuel leak?
My leak turned out to be a fuel return line from the injectors which ran down the head and block, along the bracket holding the injector pump to the block before dripping off of the pump to pipe to fuel injectors unions. Once I'd sussed that it took about 5 minutes and 0.00 to fix
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