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Location: North of You
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Air Cooled Four - Gaskets or Sealants?
I am rebuilding a four cylinder Wisconsin air cooled engine for my Bobcat. These engines are pretty old now, a lot of parts are NLA, I could probably find gaskets but they are rare now.
What do you guys think about using sealants in place of most paper gaskets? Obviously not for head gaskets, but for the numerous oil cover plates I'm thinking of gooping and assembling. The only down side I see is disassembly can be a b11tch. Should I buy paper gasket material for the oil pan, case cover, etc and cut my own gaskets? Or just seal it up with an instant gasket maker? I have had very good success on some one off repairs using Permatex sealants (usually The Right Stuff), but there's also Yamabond (although it's hard to find), and there's Hylomar. I need a reliable leak-proof engine, not a showpiece. It's not an issue of effort. If paper gaskets are superior I will make/buy them.
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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07-11-2020, 07:32 AM
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Join Date: Feb 2008
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I've used hondabond to seal case halves with very good results.
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dolor et pavor Copyright |
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07-11-2020, 09:39 AM
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If it were me, I'd make gaskets and use a sealer that wouldn't harden up/become permanent on the home made gaskets.
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Scott '78 SC mit Sportomatic - Sold |
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07-11-2020, 09:41 AM
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Oddly enough, I went through this with a single-cylinder Wisconsin (circa ~1950) earlier this spring. I made paper gaskets and used Curil-T on both sides. Sealed right up without issue. I don't think these older motors were really intended to be assembled without gaskets.
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07-11-2020, 02:11 PM
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Thanks for the feedback, I will order some gasket paper.
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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07-11-2020, 05:48 PM
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Rebuilt my Kohler CV14 this spring. Used the recommended Loctite SI 5900 for the case. No leaks so far.
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07-15-2020, 06:12 PM
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Location: Mount Pleasant, South Carolina
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B in in
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07-15-2020, 06:58 PM
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Quote:
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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07-16-2020, 04:11 AM
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Misunderstood User
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Quote:
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Jim 1983 944n/a 2003 Mercedes CLK 500 - totaled. Sanwiched on the Kennedy Expressway |
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07-16-2020, 05:20 AM
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My former car
