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  1. #1
    Join Date
    Jun 2010
    Posts
    10

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

    Hi,
    I have a coolant leak in my Volvo Penta D1-20B (well... a big hole... not just a leak). You can see it in the video attached (that is where the Elbow attaches to the heat exchanger block. You know, the manifold is part of the heat exchanger in this engine. You see only coolant drops as most of it is already out...)
    I need seal that hole... as all my coolant goes out through the exhaust elbow. Any advice on this? I'd like to know if I can do this repair my self (using QuikSteel... JB Weld... Holts Gun Gum... or similar) or that whould be too risky and I'd better call a expert in this type of repair that would use a "professional" welding approach.

    Thanks for any advice and greetings from Valencia,
    Ignacio


  2. #2
    Join Date
    Nov 2009
    Location
    Home UK Midlands / Boat Croatia
    Posts
    20,245

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

    Welcome to the forum Ignacio.

    It's difficult to be sure without seeing the hole location and it's size but I reckon it could probably be fixed with JB Weld. The problem would be getting the whole area clean and dry enough and sanding back to good metal to ensure that the JB bonds really well. I suspect that to do that you are going to have to remove the part rather than attempting it "in situ".

    Once it is removed, if it is suitable for conventional welding, I'd be inclined to take it to a specialist and get an opinion and costing before going ahead with the JB Weld.

    Richard

  3. #3
    Join Date
    Nov 2007
    Posts
    32,180

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

    That seems to be on the Heat Exchanger housing so big job to remove the HE, take out the stack and have the aft face cleaned up and welded, or more likely a plate welded as suspect when you clean off all that mess you my well find more corrosion.

  4. #4
    Join Date
    Aug 2019
    Posts
    2

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

    Quote Originally Posted by Tranona View Post
    That seems to be on the Heat Exchanger housing so big job to remove the HE, take out the stack and have the aft face cleaned up and welded, or more likely a plate welded as suspect when you clean off all that mess you my well find more corrosion.
    Hi,

    Did you fix the leak?

    I have exactly the same problem with my D1-20's heat exchanger. Dealer said I should buy a new one but it's EUR 1300 and it doesn't exists in Turkey.

  5. #5
    Join Date
    Jun 2010
    Posts
    10

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

    Hi,
    I finally found a place here in valencia where they welded it. Be sure to look for someone that knows what itís doing. It needs special welding under neutral atmosphere (No oxŪgeno). The fix was very cheap and un mounting and Mounting it was not as complicated as I thought (it takes time though. Be patient). Definitely not need to but the original part unless the damage is much bigger that the one I show in my video above. Good luck!! (By the way. This damage is caused by the exhaust elbow (Iím not sure if they call that in English). I do recommend this change it by a new one. There are cheap alternatives to the original volvo)

  6. #6
    Join Date
    Aug 2019
    Posts
    2

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

    Quote Originally Posted by icordoba View Post
    Hi,
    I finally found a place here in valencia where they welded it. Be sure to look for someone that knows what itís doing. It needs special welding under neutral atmosphere (No oxŪgeno). The fix was very cheap and un mounting and Mounting it was not as complicated as I thought (it takes time though. Be patient). Definitely not need to but the original part unless the damage is much bigger that the one I show in my video above. Good luck!! (By the way. This damage is caused by the exhaust elbow (Iím not sure if they call that in English). I do recommend this change it by a new one. There are cheap alternatives to the original volvo)
    Do you think the JB Weld helps?

    https://www.jbweld.com/collections/e...weld-twin-tube

  7. #7
    Join Date
    Jun 2010
    Posts
    10

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

    That will definitely fix it if you have a hole similar to mine but I would not go on a long sailing with it (I considered it before I found the welding profffesionales I metioned). Do it as a quick fix but look for someone that will do a real welding for long term peace of mind.

    Quote Originally Posted by burakkilic View Post

  8. #8
    Join Date
    Feb 2007
    Posts
    1,532

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

    Ignacio, I am interested to know the age of your engine please

  9. #9
    Join Date
    Jun 2010
    Posts
    10

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

    D1-20B (digital) , 2007. I have had many problems with this engine, all related to heating. The worse is one involving bubbles in the heat exchanger making engine go very hot randomly. It is a known problem that can be solved raising the position of the expansion tank. I spent years looking for the problem, even exchanging expensive parts until someone from Internet helped me.

  10. #10
    Join Date
    Feb 2007
    Posts
    1,532

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

    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.

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