Here's a link to a good DIY w/ part #s etc. You cna replace the bottom bellow band w/ a worm-gear clamp or buy the clamp pliers from sears for about $15. If you're somewhat mechanical, should be under 2 hours to replace.
http://mike.focke.googlepages.com/airoilseparatorreplacement
If you're getting that much smoke, you'll probably also want to clean out the TB too.
