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  1. #1
    Join Date
    Jun 2019
    Posts
    2

    Default Injector Pump Problems (Volvo Penta MD21A)

    I've been having issues with the engine on a friends boat for ages with the main issue being that I have been unable to bleed the whole fuel system upto the injectors on the engine. I can bleed upto the injector pump quite but can't get anything out the otherside when turning the engine over. I've done the standard google searches and youtube videos but still no luck. I even had a engineer come and have a look who had no luck but suggested the injector pump was broken. To add to the fun I can't even identify the injector pump. We think the engine is a Volvo Penta MD21A but the injector pump on it does not match up with any engine schematics that I can find. Any help or suggestions would be much appreciated.

    Photo of engine: https://imgur.com/0PHdp2A
    Injector pump tag: https://imgur.com/ZaWpxt2
    Injector pump: https://imgur.com/rV60Ttz https://imgur.com/rV60Ttz
    Engine Serial Numbers?: https://imgur.com/B2KbgfI https://imgur.com/0MRZztX https://imgur.com/KOsOIrO

  2. #2
    Join Date
    Jan 2013
    Location
    Guernsey
    Posts
    362

    Default Re: Injector Pump Problems (Volvo Penta MD21A)

    The 21 was based on the Peugeot XD90P 2.1 engine fitted in thousands of vans and trucks, still made in India. You could get a cheap used pump from just about any scrapyard to try.

  3. #3
    Join Date
    Jun 2019
    Posts
    2

    Default Re: Injector Pump Problems (Volvo Penta MD21A)

    Someone did mentioned it was based on a Peugeot engine but I didn't know which one so that's very useful to know thank you. My issue is that I just want to make sure I'm not missing anything when trying to bleed the injector pump before hunting round for a replacement.

  4. #4
    Join Date
    Jan 2013
    Location
    Guernsey
    Posts
    362

    Default Re: Injector Pump Problems (Volvo Penta MD21A)

    Make sure the timing is spot-on with the pump. TDC sounds simple, just make it right.

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