The Electronics Universe

I just got a new (to me) TS-520 on Saturday and after watching some of Buddy's videos I got it up and running.  But, is it just me or is the cooling fan about the wimpiest fan on record?  When I first got it I could watch the blades turn and after disassembling it and lubing the bearings (bushings) with Mobil 1 motor oil it runs faster but there is still virtually no airflow.  I have bought a 3.5" 120VAC muffin fan off fleabay and I hope this will run off of the 100VAC running to the stock fan.  Kind of an odd voltage to be sending to a fan IMHO.  If it doesn't run correctly I'll find a switched 120V source in the radio to send over to it.

Is this a common issue or am I over reacting?  I made a few contacts on Sunday and was told it sounded very good but as the day wore on the meter was acting screwy when I tried to touch up the tuning after changing bands.  That's when I noticed the fan poking along and I have not tried operating again after oiling the fan.