Thanks buddy... I had a look at that link, makes good reading! The guy i brought it from said he rebuilt it for a soldier out in iraq who wanted a project camaro but after being posted away for long periods on end said he might as well sell it.
Being an engineer i know how to set clearance's etc but never done a blower. We have always sent failed blowers away to be re-stripped and rebuilt or junked them if really bad. Just kept to my hemi and chevy rebuilds.
Ive never come up with this before but do i drain it? Is it there for a reason?
But yeah its going to be on my mind forever if i dont do anything about it! Think its very odd!