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Johninaustin
Full Grown Flour Bluffian
Joined: 03 Jun 2007
Posts: 1118
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 Posted: Wed Dec 20, 2017 11:32 am Post subject: Welding an aluminum engine block? |
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The water jacket cover plate on my Honda 40hp seems to have cracked, or at least the gasket is rotted. It's a pretty thick piece of aluminum, the bad part being that the bolts are all corroded and will have to be cut off IF I can find a replacement. Since it's a 2001 I don't think that's likely.
The only real alternative is to somehow find an old cylinder head and rebuild the whole thing. New ones are not available from Honda and the one remanufactured one I found is $1,220
Right now I have the leaks sealed with Liquid Steel, but I would like a more reliable solution.
Is it possible to weld it in place to the cylinder block? There is no particular need to have it removeable. I'd hate to have to junk the motor over this, it runs fine. |
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Rebecca of Sunnybrookfarm
Full Grown Flour Bluffian
Joined: 01 May 2008
Posts: 3974
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| Posted: Wed Dec 20, 2017 11:35 am Post subject: |
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a good machine shop should be able to help you out...
becky
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Rxfire
Member White Shrimper Boot Club
Joined: 16 Apr 2016
Posts: 623
Location: Flour Bluff
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ironmanstan
Exalted Ruler of Flour Bluff
Joined: 04 Oct 2006
Posts: 12256
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| Posted: Wed Dec 20, 2017 2:57 pm Post subject: |
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You can probably make a new one and with a little finess get them broken bolts out. Sounds like a project. Too bad I cant help you out gonna be awhile before I can. You already got it all pookeed up. That makes for bad welding. Aluminum is like copper it has to be real clean to weld.
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Rxfire
Member White Shrimper Boot Club
Joined: 16 Apr 2016
Posts: 623
Location: Flour Bluff
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| Posted: Wed Dec 20, 2017 3:18 pm Post subject: |
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| Kano Kroil for penetrating the threads on those bolts (or half each acetone and transmission fluid) |
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Salt On the Brain
Horse Mullet
Joined: 09 Sep 2015
Posts: 234
Location: Flour Bluff, TX
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| Posted: Fri Dec 22, 2017 6:25 am Post subject: |
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It's a piece of cake to remove damaged bolts from aluminum.
Call me tonight or tomorrow and i'll talk you through it or possibly help.
806-577-3607
Lance.
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