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Thread: Diesel around the swirl valve seats.

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    Regular Member felixx's Avatar
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    Exclamation Diesel around the swirl valve seats.

    Had the veccy in yesterday for a service.I had also noticed that the valve seats/flaps on the inlet manifold were getting a bit on the gunky side,so I asked them to check if they were leaking.Came back with,"It's diesel sir,and will need further investigation to find out where it's coming from".Now there IS diesel there though,and it's more noticable after a run,AND,you do get a smell of it sometimes.Has anyone got any ideas where it may be coming from as I can't find any leaks at all!!!!. FELIXX.

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    Regular Member felixx's Avatar
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    Regular Member LADmachining's Avatar
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    If it is fresh Diesel, then it can only be coming from the fuel rail or it's associated pipework, which is in the area above the swirl flaps.

    If it's oil and other gunk, then its probably pushing past worn swirl flap bearings in the intake manifold.

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    Regular Member felixx's Avatar
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    Quote Originally Posted by LADmachining View Post
    If it is fresh Diesel, then it can only be coming from the fuel rail or it's associated pipework, which is in the area above the swirl flaps.

    If it's oil and other gunk, then its probably pushing past worn swirl flap bearings in the intake manifold.
    Thanks for that.I had a suspicion that it may be something like that.I had it in VX today,(again!!),and they said that the inlet manifold was ok and that they couldn't find anything wrong,so to leave it for a while and see if anything develops.I think I will run my own "cottage industry" tests on it to see what's what.Watch this space!!...............FELIXX.

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