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Thread: Manual cranking

  1. #1
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    Default Manual cranking

    In the past having only owned petrol engines, to find tdc i used to remove number 1 plug and use a screwdriver or the like down the port, but having now got a diesel and looking at doing the cambelt i shall need to crank it a few times by hand under cyclinder pressure, my question is can the engine be cranked by hand or will glow plugs have to come out? Hope that makes sense. Many thanks

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

    Default

    you can turn it over y hand with glow plugs still in mate, if thats what you mean? will make it a little easier to remove them, but for the hassle of removing and refitting imo not worth it

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    Thats just what i needed to know, many thanks.

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    Regular Member the-wizard's Avatar
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    Vehicle : vectra-c

    Trim : sri

    Engine : cdti

    Year : 2004

    Mileage : 98,000

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    If its a cdti 150 there's a bung on the front of the cam cover next to the dipstick.

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    Forgive my ignorance but a bung for what?

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    Regular Member macdad's Avatar
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    To turn the engine over to find TDC, after you remove the cam cover replace the wheel using a couple of bolts and turn the wheel easy peasy lemon squeezy ,no need for GP removal.

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    The bung is probably the exhaust cam timing tool screw. You can remove the screw cap with an allen key. The timing peg (part of the timing tool set), which is spring loaded screws into this. When the crank bolt is turned and the cam rotates, the tool engages with a recess in the exhaust cam shaft at TDC.

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