G'Day All I have used JB weld in an application I have not heard on the List before, although I am sure other would have tried it The JB is standing up well and at this stage has save me the expense of a new 5 1/2 in re-sleeve and 4 new rings see http://www.oldengine.org/members/kmorris/Webpages/temporary13.html Kerry Lithgow NSW Oz