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  1. #11
    Join Date
    Jun 2010
    Posts
    10

    Talking Re: Volvo D1-20 leaking coolant into elbow. How to weld?

    I didn't have problems with that other than the hole (which I thin was created by salt coming from the exhaust elbow. That should be cvhanegd every 5 o 6 years as tends to narrow and eventually having some salt going back in the exchangger, just where I had the hole)

    I also have my electronic box broken. My engine won't start using the panel button. I need to use a direct short circuit with the starting coil... other than that, the engine works ok... :-D

    Quote Originally Posted by Slowtack View Post
    My D1-30F is from 2017............on my third control box already................wondering how long before another problem occurs. I have heard of some owners removing the heat exchanger and improving the separation seal between the aluminium and cast iron as a preventive measure.

  2. #12
    Join Date
    Sep 2019
    Posts
    2

    Default Re: Volvo D1-20 leaking coolant into elbow. How to weld?

    I have the same problem. Not sure if it can be welded as I suspect that the material is cast iron. I tried to use metal stitching but there is to much corrosion.

  3. #13
    Join Date
    Feb 2003
    Posts
    15,662

    Default Re: Volvo D1-20 leaking coolant into elbow. How to weld?

    Quote Originally Posted by sdennisf View Post
    I have the same problem. Not sure if it can be welded as I suspect that the material is cast iron. I tried to use metal stitching but there is to much corrosion.
    Its aluminium, there is a blog somewhere of a German guy fixing the same problem on an MD22, he cut back to good metal and welded it. He was a genius! The control boxes, MDI ones, I helped solve a problem on an Ovni and VP sent technicians with an osciliscope, the problems being caused by lack of “fly back diodes”

  4. #14
    Join Date
    Dec 2007
    Location
    S.W. France
    Posts
    7,706

    Default Re: Volvo D1-20 leaking coolant into elbow. How to weld?

    Ah, the joys of basic old tech diesels.

  5. #15
    Join Date
    Sep 2019
    Posts
    2

    Default Re: Volvo D1-20 leaking coolant into elbow. How to weld?

    Quote Originally Posted by Heckler View Post
    Its aluminium, there is a blog somewhere of a German guy fixing the same problem on an MD22, he cut back to good metal and welded it. He was a genius! The control boxes, MDI ones, I helped solve a problem on an Ovni and VP sent technicians with an osciliscope, the problems being caused by lack of “fly back diodes”
    Was able to remove the exhaust manifold. Pretty easy except that you have to drop the alternator. I was able to find a local shop in Bacliff TX that is a skilled welder with lots of experience welding aluminum. Going to redesign the manifold to add extra thickness where the corrosion took place. Will post ictures when it is done.

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