<VV> Oil Cooler cleaning tip

[Derek Archer]

I got this tip from a friend who only uses folded-fin oil coolers, but 
this can apply to all coolers. First, remove the alternator or 
generator (You'll see why in a minute). Remove the oil cooler cover and 
brush and vacuum out the loose stuff. Now, get out your pressure 
washer. No I'm not kidding. I happened to have a 1600 psi one for my 
driveway. Set the spray for a somewhat narrow fan spray (a needle spray 
can damage the folded fin coolers) and aim it straight through the oil 
cooler and blast that junk out of there. That's the key, you have to be 
forceful with that stuff. Another method is to use compressed air and 
blast up from the bottom in the exhaust air duct.