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73 ES exhaust manifold 1800

posted by  Rainflye on  Mon Feb 16 07:11 CST 2015
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last visit: Wed Oct 22 09:59 CST 2014
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I have a hairline crack in my exhaust manifold right where the cyl 1 & 2 pipes meet the center section.




Anyone ever use a product called "quiksteel/thermosteel" the repair a crack?




Secondly, what is availability of an exhaust manifold for this engine. It is of course a B20F but I am wondering if other manifolds versions of the B20 will work.




Still having fun!




Craig
--
Craig 73ES








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    73 ES exhaust manifold 1800

    posted by  Volvo From Heck on  Mon Feb 16 09:48 CST 2015
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    last visit: Mon Oct 13 20:56 CST 2014
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    I highly doubt any putty fix will work -- even a welding or brazing job will eventually fail with all the expansion and contraction going on (I have some experience with this). Besides any B20E or F exhaust manifold, it is possible to utilize a combo iron intake/exhaust manifold from a carburetted model -- with the intake section hacksawed off. If you go this route the steel locating pin inserted in the head needs to be removed and you'll need to make stepped washers where the manifolds are adjacent (easy task with brazed together pieces). I have a couple of those available (uncut) if needed. -- Dave







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