Fuel leak

Old Nov 8, 2019 | 08:59 AM
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Unhappy Fuel leak

1995 960 Sedan again.
Background:
Have had a slight smell of unburned fuel that occasionally pops up, but all of a sudden it was more pronounced over the last few days. Today, right after driving, I immediately popped open the hood and I could see what appears to be fuel right near the end of the fuel injector rail and dripping onto the connection between the intake manifold and the engine. (See circled areas below.)


Front end of fuel rail.

I'm thinking maybe this Bosch injector seal kit might in order.

I've been looking at this video by Robert (DIY) Spinner @rspi , so I'm guessing it's similar on the 960.

Questions:
Does it make sense that that is the source of the smell? Will replacing the seals using the kit likely solve the problem? Robert suggests replacing all of the seals at the same time. Does that seem like the best course of action? We are talking about 25-year-old injector seals even if they only have 86,000 miles. Finally, is the 850 video above close enough to get me in there on the 960?
 

Last edited by cs2019; Nov 8, 2019 at 09:01 AM. Reason: Linked video went inline instead of just a link
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Old Nov 8, 2019 | 10:45 AM
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I see from some online discussions and YouTube that the rail can leak at the end, and some have solved this by epoxying a nickel to the end. I don't think it is leaking there, but I'll try to observe it with the car running later.
 
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Old Nov 8, 2019 | 04:41 PM
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OK, with the pressure on and the motor running, I can confirm that it is the end of the fuel rail. This is a known problem with this car, and while there are some aftermarket "performance" fuel rails out there, the original OEM part and aftermarket regular parts aren't available. So unless I want a junkyard part (which would probably have the same problem), my choice seems to be the performance part at $176 or repair with JB Weld. ...so JB Weld it is!
 
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Old Nov 8, 2019 | 06:57 PM
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I'd replace the seals of all the injectors, shouldn't be too hard.
I have never used JB Weld for fuel leaks, hope it works...
 
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Old Nov 11, 2019 | 09:14 AM
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Originally Posted by lev
I'd replace the seals of all the injectors, shouldn't be too hard.
I have never used JB Weld for fuel leaks, hope it works...
Here's the video I found along with the comments that suggest using JB Weld.


Seems to be working so far. I can no longer see it dripping and the fuel smell seems to have stopped.

I still plan to replace seals.
 

Last edited by cs2019; Nov 11, 2019 at 09:16 AM. Reason: Added comment about seals
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Old Feb 3, 2020 | 03:39 PM
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Just a follow up here. The 960 fuel rail leak repair seemed to last about two and a half months, and the leak is back. Next plan is to remove the fuel rail, replace fuel injector gaskets (on order from IPD right now), and clean up the rail and slather more JB Weld on the end.

Couldn't have happened at a worse time. The daily driver (Honda) has some front end clunk I haven't been able to clear up yet).
 
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Old Feb 10, 2020 | 10:48 AM
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Anyone have step-by-step for removing fuel rail on '95 960? Generally going to follow Robert "DIY" Spinner's instructions for the 850.
 
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