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  #1  
Old July 25th, 2012, 07:55 PM
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Whats this leak

In about a thousand miles in on the new engine already. All is great and it runs wells. Only think is I see some wetness on the right side of the engine. I found these little stud like things by the injectors. The middle two are weeping oil, the outside two are dry? Any idea what they are, can they be tightened or what? It's not a bad leak. Just some oil wetness I'd like to get rid of, Doesn't make it to the ground or anything, and on the opposite side of the exhaust so I'm not too worried really.
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  #2  
Old July 25th, 2012, 09:01 PM
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Please don't pressure wash your head, a little brake cleaner and swims paper towels or rags.
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  #3  
Old July 25th, 2012, 09:15 PM
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A little degreaser or simple green and some light water mist should work fine. It's just oil, it should come right off
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Old July 25th, 2012, 10:16 PM
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I'm new to rovers but have been wrenching a while... both the words 'brake cleaner' and 'pressure wash' made me absolutely cringe when used in reference to an engine. Totally agree: mild degreaser and wipe off is more than sufficient.
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Old July 26th, 2012, 12:06 AM
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funny bossman, i was going to post pics myself of my new to me 200tdi and ask if they are known to be messy marvin's. i've got oil built up around the back of the block and down the right side was well. i guess for a new 200tdi guy it's a bit perplexing; not used to seeing that much oil
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Old July 26th, 2012, 12:11 AM
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I use the AutoZone bought spray can degreaser and a regular garden hose on my Tdi...just make sure it's cooled off, and get all the degreaser off. Not really much you need to worry about from an electronics standpoint, I just try to keep it away from any harnesses or connectors. But I have at it, spray it down, and never had an issue.

For the leak - I've seen where it actually blows by the oil cap and essentially underneath the acoustic cover - and then can come out in weird places. But my first instinct was maybe it's the injector leaking if the copper o-ring wasn't seated properly (though now I don't think that is it). What about the fuel spill rail, the rubber/viton hoses that connect it - are they cracked or weeping?
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  #7  
Old July 26th, 2012, 05:22 PM
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Looking at your pictures, I don't understand your problem. However, from reading your description, it sounds like the same problem I have with my 200Tdi. A couple of the bolts that secure the banjo fittings on the spill pipes insist on loosening, so I have to snug them up occasionally. I have read that some engines just do this, and some don't. If you're one of the lucky ones, just carry the appropriate wrench with you.
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Old July 26th, 2012, 06:22 PM
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Quote:
Originally Posted by John_Karlsson
Looking at your pictures, I don't understand your problem. However, from reading your description, it sounds like the same problem I have with my 200Tdi. A couple of the bolts that secure the banjo fittings on the spill pipes insist on loosening, so I have to snug them up occasionally. I have read that some engines just do this, and some don't. If you're one of the lucky ones, just carry the appropriate wrench with you.
It's leaking engine oil, not diesel. So its not anything with the fuel lines or system. The first picture shows one of the weeping cylinders, the second is a dry one

In the first pic, you see that little stud thing, just under the injector that has a ring of oil around its base? That I believe is the source. My question is what is that and can it be tightened?
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Old July 26th, 2012, 06:47 PM
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So here. The thing the pen is on. What is that
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Old July 26th, 2012, 06:54 PM
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Now I see what you mean. I don't know if those "studs" are threaded or if they are just pressed in, but I can't think of any reason why they would have any reason to leak.

The flat piece of metal, the end of which rests on the "stud," holds down the injector. The stud, in this case, I think would be the fulcrum. I agree that the oil is coming from somewhere above and collecting there.
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Old July 26th, 2012, 09:23 PM
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Ok. I'll give it a good cleaning tomorrow and keep an eye on it
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Old July 26th, 2012, 09:35 PM
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From looking at the pictures, it appears that the area above the oily part is oily, while the area above the dry part seems to be dry.
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Old July 26th, 2012, 09:46 PM
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I think those are dry plugs and not connected to any oil passage. If you can't find another culprit you can try a little red thread locker around the studs. But I think it may be that the injectors are not seated properly or as mentioned above it is coming from the valve cover gasket. Once cleaned up you can tighten the vale cove a little. It is just a rubber gasket. If it still leaks try the thread locker and if that doesn't do it pull the injectors. Make sure that you have replacement washers/rings for when you replace the injectors. They are a one time use thing, but I have seen them used twice with both bad and good results. Some times it is hard to get the old ones out and some shops leave them in by accident,
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Old July 27th, 2012, 08:49 PM
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Well I washed it clean and took it to the beach. Bout 20 miles total Sure enough it's wet again. Deff looks like the valve cover gasket, and just weeping down. I only see three bolts so I'd imagine it's a very simple job. Throw it on the list. Do you guys recommend silicone along with and/or instead of the rubber gasket? This gasket looks new, and since the engine is a supposed rebuild that would make sense. Maybe it isn't seated properly???
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Old July 27th, 2012, 08:59 PM
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Quote:
Originally Posted by bossman429 View Post
Well I washed it clean and took it to the beach. Bout 20 miles total Sure enough it's wet again. Deff looks like the valve cover gasket, and just weeping down. I only see three bolts so I'd imagine it's a very simple job. Throw it on the list. Do you guys recommend silicone along with and/or instead of the rubber gasket? This gasket looks new, and since the engine is a supposed rebuild that would make sense. Maybe it isn't seated properly???
Get a new one, they're cheap enough (like $10 or so, ERR2409). Make sure you torque it correctly (10nm, work from center then outer 2). When you have the valve cover off, test it to make sure it's not warped/etc (put it on a flat surface and check if it rocks back and forth at all).

However, fwiw Collin (97XD) on here had a similar issue I believe, and even with a new gasket for some reason it was still leaking - I can't remember exactly why or what, but send him a note or checkout the thread he had on "baaad fuel economy".
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Old July 27th, 2012, 09:09 PM
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Seals but also two half moon oil plugs (x2) you might check that they are seated properly at the rocker cover
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Old July 27th, 2012, 09:14 PM
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Originally Posted by texrover View Post
Seals but also two half moon oil plugs (x2) you might check that they are seated properly at the rocker cover
That's just for the 200tdi, right? I don't think I had that on my 300.
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Old July 27th, 2012, 09:29 PM
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Quote:
Originally Posted by nathanwind

That's just for the 200tdi, right? I don't think I had that on my 300.
http://www.landroverexpedition.com/t...ve-clearances/

It's for valve gapping (the link) for 200/300 not sure about the plug present on the 300 or not. I came across it searching for the part number on the plug

But the article does state checking gaps every 12k miles and thought it would be handy
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Old August 1st, 2012, 03:02 PM
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Sooo I pulled the valve cover and the gasket seemed brand new, cleaned everything off, and re-set it on the head. Then I realized the breather valve/seperator didn't have a gasket, so I think that was the issue. Put some High Temp RTV on it and alls well.

Of course I snapped a valve cover bolt and couldnt back it out. Turning a 5 min project into a 2 hr ordeal. After driving all over looking for a metric tap set I was able to re-tap it for a M6x1.00 bolt and get the valve cover back on.

Took it for a little drive to today and its dry as a bone. I certainly think it was the breather valve that was weeping. No way could that rubber gasket that was in brand new condition have been leaking.
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