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SeaSpray
Joined: 12 Mar 2004 Posts: 1007 City/Region: Brentwood, CA
State or Province: CA
C-Dory Year: 2004
C-Dory Model: 22 Cruiser
Vessel Name: SeaSpray
Photos: SeaSpray
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Posted: Thu Apr 30, 2020 2:22 pm Post subject: Thermostat corrosion |
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I left my thermostat too long and had to work to get it out. The housing and cover are encrusted with, I think, mostly salt corrosion.
Any suggestions for cleaning away the corrosion without damaging the aluminium?
Thanks,
Steve |
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Marco Flamingo
Joined: 09 Jul 2015 Posts: 1155 City/Region: Seattle
State or Province: WA
C-Dory Year: 2004
C-Dory Model: 16 Cruiser
Vessel Name: Limpet
Photos: Limpet
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Posted: Thu Apr 30, 2020 3:08 pm Post subject: |
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Muriatic acid will clean it up in a jiffy, but it is scary stuff. I've had a gallon of it around for more than a decade. Just takes a little bit and maybe a minute. Mine came out so good when I replaced it that I kept it as a spare. I suppose that cleaning vinegar (more acidic than cooking vinegar) would work in a soak for a couple of days.
Mark |
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smckean (Tosca)
Joined: 18 Jan 2014 Posts: 975 City/Region: Guemes Island (Anacortes)
State or Province: WA
C-Dory Year: 2005
C-Dory Model: 25 Cruiser
Vessel Name: Tosca
Photos: Tosca
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Posted: Thu Apr 30, 2020 5:39 pm Post subject: |
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FYI....
Sodium bisulfate can be used to make an acid much stronger than vinegar, but not scary to handle (like muriatic acid). Sodium bisulfate is easily purchased as a hot tub or pool chemical for lowering pH.
To make an effective 10% sodium bisulfate acid soaking solution; add 4 tbsp sodium bisulfate to 4 cups water _________________ Sandy McKean
Purchased Tosca in 2014
Re-powered to Yammi 200 in 2015 |
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