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Message: <blockquote data-quote="obleck" data-source="post: 113248" data-attributes="member: 19416">Hello,I have an 863 with a Deutz 1011 in it. I was getting oil leaking out of some unknown location in and around the fuel injectors. After replacing all the fuel bypass lines, which is what I thought it was (but wasn't), I pulled the muffler off to take a look from above. I discovered there is a valve cover pressure relief valve in there that had melted, and on top of it is a heat shield cover with some sort of a white fibrous material, item 34 in this parts drawing:<img src="http://klaxon-parts.ru/komatsu/bobcat/b14308.gif" alt="http://klaxon-parts.ru/komatsu/bobcat/b14308.gif" class="fr-fic fr-dii fr-draggable " style="" />In this case the fibrous stuff was caked in oil and likely the pressure relief was essentially clogged, which might explain the leaks, but I'm not totally convinced. I ordered a new valve, but the fibrous stuff is a mystery.Anyone know what this stuff is, or how to get it? It evidently comes in a "heat shield kit" that I can't find either.Secondarily, any other ideas on how oil could be leaking out of the valve cover? It doesn't appear to be leaking out from the cover gasket, strangely enough, but is appearing on the injectors on #2 and #3, but it's also spraying around slightly since the bottom of the muffler was wet.There is also a vent hose that comes from the air filter on the turbo side with a brass fitting that went somewhere. This seems like it's either providing low pressure/suction to the crank case (recirculating blow-by in essence), or it's providing clean air to somewhere when properly connected.Thanks!</blockquote>

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