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  #1  
Old 03-08-2007, 05:57 PM
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OM606 Diesel IP Pump leak?

Hey guys, while underneath the car replacing the engine mounts I saw that the IP is weeping oil/diesel on the side and rear. Included pictured for your viewing pleasures. Hopefully it's something simple as tightening some of the allen screws that are holding some of the plates on the IP.

Ideas guys?


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  #2  
Old 03-08-2007, 07:01 PM
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Start by cleaning it up.
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Old 03-08-2007, 07:23 PM
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Since I took the photo I wiped off what I could and then gently tightened the allen bolts that you can see on the side of the IP, T30 - and also the 10mm nuts from the metal item that has some of the visible drip. was able to tighten these items to a tight snugness, there was some room to play with so I'll see.

Also I gotta replace that oil sensor sending unit. The damn thing leaks out from where the connector plugs in to.
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Old 03-08-2007, 08:07 PM
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Theres an o-ring on that leak. Replace it.

I hesitate to say what the cylinder is, because your IP is very different to mine.
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Old 03-08-2007, 08:16 PM
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This is the 97', right?

Thats the fuel/lift pump. Theres also fuel showing at the rear of the IP. As Matt intimated, invest in a can of brake cleaner and apply liberally.

The fuel could well be coming from a bad oring seal on the fuel line connecting to the fuel pump and dripping down.

I had a leak long ago at the rear of the IP which the dealer repaired when I first got the car. The manifold was off for another issue and that leak was minor enough that it did not make their invoice. I think there is a plate back there held with torx screws....

I would imagine the fuel pump has a gasket?
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Old 03-08-2007, 09:01 PM
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I tightened those bolts down and wiped off what I could. I'll be taking a trip this weekend so I'll peek underneath after the trip and see how she's doing... I did have the fuel shutoff valve replaced along with the plastic fuel lines within the last 14 months, food for thought!
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Old 03-08-2007, 10:08 PM
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Use some brake cleaner on the whole thing and run it. That will tell you what is going on. At the first sign of seepage, stop the engine.
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