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Thread: Engine Rebuild

  1. #1
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    Default Engine Rebuild

    Is it easy to do an engine rebuild. Has anyone ever done it and has any guides etx i can follow to change valves and piston rings?.

    Iv never done it before but think i could maybe do it no problem. Im burning oil so think its time to rebuild rings valves and maybe other we bits and bobs .

    An guides or advice would be great

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    Regular Member vmb2722's Avatar
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    Vehicle : Vectra

    Trim : Exclusiv

    Engine : 1.9 CDTi 150

    Year : 2007

    Default

    Get the proper piston ring compression tool, otherwise it's easy to damage them, and take your time, it's quicker to double check than it is to strip it down again after forgetting something!

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    Depends on what you class as easy mate along with your level of experience.

    its not hard how ever changing piston rings involves stripping practically the whole engine.

    you will need a dti gauage to measure the bore wear to ensure you get the correct size rings too

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    thanks for reply's,
    problem I am facing is, iv not change the timing belt before and that might be hard enough to get off. if that was easy to do then its a case of removing screws to get in. for the belt do you just remove the air filter housing, fan belt and then upper case. once done remove very bottom large gear for fan belt. then remove bottom case and undo the tensioner for main belt all from under the car or on top, which is easyer. no need to remove wheel arch is there? how do yous support the engine also?

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    Regular Member vmb2722's Avatar
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    Vehicle : Vectra

    Trim : Exclusiv

    Engine : 1.9 CDTi 150

    Year : 2007

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    Support the engine with a jack from underneath so ill need to remove the splashguard and the wheel arch liner to get in easier to take stuff off

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    You'll need to support engine as engine mount needs to come off.

    make sure you set no1 cyl up tdc (timing marks)

    use paint pen/ tip ex aswel for bit of extra safety when building back up.

    once you've got that off you're looking at head off. Sump off.

    then big end caps off an tap pistons out.

    You will then need to inspect for scoring, cracking etc an measure the wear.

    a Haynes manual may make things but long winded sonetimes
    but in this instance where you're thinking along the tight lines but a bit unsure it maybe worth the investment

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    Iv got the manual, its great peace of information that book is. just seams complicated enough to get the belts off in the book. are you sre you deffinitly have to remove the wheel arch to do it, iv seen videos where the person has not. Also why you removed the sump, is it necessary to get the pistons out or what?

    Thanks for help guys keep it coming

  8. #8
    Regular Member vmb2722's Avatar
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    Vehicle : Vectra

    Trim : Exclusiv

    Engine : 1.9 CDTi 150

    Year : 2007

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    The pistons are attached the the crankshaft which sits in the sump, the only way to remove the pistons is to detatch them from the crankshaft, so yes is is necessary to remove the sump!

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    To be honest if your asking how to do things like this its beyond you no disrespect

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    Engine : Z19DTH


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    in the nicest possible way id recommend you dont touch your engine and leave it to a pro. Doesnt sound like you know much about engines, you'll only end up paying a mechanic a rediculous amount of money to bail you out if you start taking things apart. A belt should only be done by a diy mechanic who knows what theyre doing, a complete rebuild is beyond most folks, serious amount of stripping involved and some engineering know how

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