[Harp-L] Repair problem Mystery?

[Cathal Johnson Harmonicas <cathaljohnson@xxxxxxxxx>]

 Dear Harp L,
I got 4 special 20s all in the key of A major and all needing a reed on the
blow 5. So I opened them all up and replaced the reeds all at once, I then
cleaned them in an ultra sonic cleaner combs and all and reassembled them.
Reed plates and combs got mixed up but as they were all the same key and
model I though would not matter!
But on assembling them however, there is a fault. When I blow reeds 5,6 or
7, the B note on hole 1 draw sounds off at the same time!!?? There seems to
be an air leak that escapes down into this hole and activate the B reed,
but I can’t find it or figure it out? I dabbed Vaseline on to comb try and
seal to no avail!!?? It only sounds/happens when the covers are on.
Is it because I mixed them up I am thinking now?
Do anybody have any idea what or how I can fix this problem or what could
be going??
They belong to a customer and I am afraid I won’t be able to fix them
properly now, having replaced the broken reeds successfully, this is the
first time this has happened. I think it is because they got jumbled up. I
thought that would not have mattered as they are all the same though…???
Any feedback is greatly appreciated!!
Regards,
-- 
Cathal Johnson