V6 Inlet Manifold Opened.
5 Attachment(s)
I have some rattling V6 Inlet manifolds lying around and curiosity got the better of me. I opened one up to try to understand the problems a little better, what a can of worms we face in the future. The picture one shows the butterflies in the open position, picture two shows the operating rod in position and that's where all our problems come from, the axles that the butterflies are on are hard plastic in a hard plastic carrier, the pictures three and four show the kind of wear I've described, not all of them seem to wear but the ones nearest the vis motor do wear a lot. The carriers are sonic welded on to the manifold rather like a crown being placed. I'd say it's very possible to remove them and swap bad ones for good ones, they wear out the axle and carriers and go very baggy, it seems that this then puts a strain on the operating shaft and, the areas where it clips on to the butterflies elongates and then simply falls off, this results in the butterfly just flapping around. The last picture shows an elongated hole and the shaft is nothing but scrap, it's made from hard plastic and wears badly. I reckon the only way to get round this problem is a new type of shaft and find a way to bush the axle holes for the butterflies, if we can't solve this then all manifolds will end up scrap at some point, I do think regular oil changes will help but not enough in the long term.
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It looks like the operating shaft does not have a proper support to take its weight so the butterfly spindles and ball joints are supporting the weight of the operating shaft.
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What about regularly adding an upper cylinder lubricant to the fuel? Expensive over time, but was recommended to me by a Land Rover service center.
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A chap on another forum , I can't remember his name, but the forum was X Power actually didsome research and was going to do repair kits with metal replacements , he had a couple of mock ups and a finished item that he was trialing but I don't know what happe ed as he stopped posting and I haven't been on the forum for a year or so, might be worth checking out again
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Just checked on the Xpower forum and the chaps user name was Sheddist the article was back in 2010, but its worth a look as it has some pictures and is a clever design, he was going to sell them but suddenly stopped posting, the article is under Reparing inlet manifold KV6 article, try this link
repairing inlet manifold kv6 https://forums.xpowerforums.com/showthread.php?t=54886 |
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I recall seeing notice of a complete replacement for the existing mechanism in development, piggy-backing off the VIZ-controlled system somehow and on this site I think. That was a few years back and not seen or heard anything since.
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Hi Michael. I opened one back in 2014 after changing it due to the death rattle photos below of what i found inside. https://i.imgur.com/LMzhWWJl.jpg1 https://i.imgur.com/IP1RoTBl.jpg2 https://i.imgur.com/BPyYAOjl.jpg3 https://i.imgur.com/TS0cRCLl.jpg4 https://i.imgur.com/LJnhQykl.jpg5 https://i.imgur.com/jfGZTXcl.jpg6 You can see how the sockets to the ball have broken, where do these broken bits go? into the engine i presume. https://i.imgur.com/qbGxeN5l.jpg7 You can see below how they go brittle and break off. https://i.imgur.com/k1cFFcIl.jpg8 https://i.imgur.com/SwpP49ql.jpg9 https://i.imgur.com/4vMgStIl.jpg10 https://i.imgur.com/K3RtJ2Zl.jpg11 https://i.imgur.com/rKzIGWxl.jpg12 here you can see how the oil gums up the flaps, i have just removed mine from my FL2 which is easy compared to the 190 V6 manifolds. https://i.imgur.com/DBi2qagl.jpg13 |
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