What kind of repair exactly did you do?`Did you glue together an umbrella seal or did you allready have positive valve seals installed?? I repaired the cracked umbrella seal by gluing it with the same stuff the body shops repair plastick bumpers with. Worked great, no smoke. I still would like to k...

By the way, I did a repair , don't know how long it will last, but it is holding so far. I ran it for 30 minutes and No more smoke out the tail pipe. No eight cylinder had one cracked seal . I glued it together with a two part plastic that the body shops use to repair plastic fenders. Good stuff. Tu...

I have a damaged seal on my 410. can't find any replacements. What is this positive seal system one of the members was talking about? I need help, does anybody know of any replacement valve seals?

I have a damaged seal on my 410. can't find any. What is this positive seal system you are talking about? I need help.