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Thread: Could use some help please

  1. #1
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    Default Could use some help please

    Hi guy I posted yesterday about my bectra 1.9 tdci 150 on an 06 I believed the problem to be the EGR valve so have removed and cleaned. this has now allowed the car to rev but on reving noticed that smoke was comming from the engine.

    There is a bar lying down bellow where the glow plugs go I think (novice) and it appears to be broken off.

    I am not sure what this part is or if there is a quick fix for this I have taken two pictures and hope these would help identify the problem. Any help would be greatly appreciated

    thanks for looking Lee

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    It's a VERY common fault with your Italian engine - the part that's leaking fumes is the swirl valve mechanism, and the bar lying there is the swirl bar that is supposed to operate the valves. You need to have the inlet manifold changed.

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    Regular Member Gerdo3's Avatar
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    Regular Member Gavin2.6's Avatar
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    Quote Originally Posted by Gerdo3 View Post

    See how many times you do that fix. I was on my 6th go until I added a small groove on the bottom of the nipple with a dremmel and now the rubber washers have something to grip against and bar dont fall off after a few weeks.

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    Quote Originally Posted by Gerdo3 View Post
    I strongly suspect that you're misunderstanding the cause of the OP's issue. The inlet manifold and the swirl valves within them are partially blocked by coke deposits, this is preventing the swirl valves from moving correctly. The actuator bar is therefore finding it harder and harder to move the valves and therefore it detaches from one or more of them. Sticking the bar back on does not solve the problem - the valves are still coked up and reluctant to move, and that's why it will keep falling off. Whether it stays on a week or 6 months, the valves still won't be moving correctly - they won't close fully when they should be, and they won't open fully when they should; at best they will move just enough to stop the bar detaching itself. Without the valves opening and closing correctly, economy and power will be reduced.

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    Regular Member Gerdo3's Avatar
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    Right i see where you are coming from, so really you need a new manifold, even if you glued the the swirl valves in the open position ?

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    VIP-Member Damo77's Avatar
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    Quote Originally Posted by Rebellion View Post
    I strongly suspect that you're misunderstanding the cause of the OP's issue. The inlet manifold and the swirl valves within them are partially blocked by coke deposits, this is preventing the swirl valves from moving correctly. The actuator bar is therefore finding it harder and harder to move the valves and therefore it detaches from one or more of them. Sticking the bar back on does not solve the problem - the valves are still coked up and reluctant to move, and that's why it will keep falling off. Whether it stays on a week or 6 months, the valves still won't be moving correctly - they won't close fully when they should be, and they won't open fully when they should; at best they will move just enough to stop the bar detaching itself. Without the valves opening and closing correctly, economy and power will be reduced.


    Best course of action will be to replace the inlet manifold.

    HOW-TO - Replace Inlet Manifold (CDTi 150)

    Penfold101's thread on Inlet Manifold

    And a high speed video of our very own Penfold101 doing his (including cambelt)

    [ame="http://www.youtube.com/watch?v=G7kMp87_Xjo"]Vectra 1.9 CDTi Inlet Manifold and Cambelt Change - YouTube[/ame]

    Good luck, hope it helps

    Damo
    Already replaced:-
    Alternator,
    Drilled/Grooved Discs & Pads, Eibach Springs, EGR Valve, 50W HID's 6000k, K&N Panel Filter, LED footwell & boot lights

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    Regular Member Gerdo3's Avatar
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    Damo thanks for the pointer, as i am not too mechanically minded, (and me mate is away doing a around the world jobbie) i will go with the spray decoke then fit the new egr plate first

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    you should still be able to swing the flaps to the open position with a screw driver , its not ideal but the car will drive ok like it till you can get the manifold sorted

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    Thanks to everyone who replied . I finally just changed the inlet manifold and the EGR valve cleaned everything also and now running like a dream.

    Thanks to the how to for the instructions can't beat a bit of DIY not the most straight forward of jobs but hey it did not take all that long.

    happy motoring

    Lee

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