1950 vintage Motorola IF transformers?

[nasadowsk]

Ok, for those who haven't seen the 'Beautiful Motorola!' thread on the B&W TV forum, well, that set came with an AM/FM radio. Right now, I'm attacking the radio, and I've found that I've got a nasty (nasty!) amount of noise on the AM band (and less so on FM). I've traced this down to a leaky IF transformer - it's one of those round can types where you press and turn the ceramic base to pull it out (neat! This consoles full of neat features). There's a leakage from the input to the output side, which seems to be via the capacitors formed into the base of the coil. Anyone ever have this on a Motorola before? I'm trying to figure to a way of dealing with it - if cleaning the thing will help or not. It's a REALLY weird design, I've never seen it before.