Someone posted that they had used an infared thermometer to test for hot and
cold spots on the Vanagon radiator.  I have temporary access to one of these
and was wondering:

1. How accurate can the readings be with the AC coil in front of the
radiator. My coils isn't functional at the present time)?

2.  When checking the various spots  on the radiator for temp.
differentials, what's considered okay and what's considered excessive?
3.   Any numbers come from those that have donw this?   Where I could get to
the real radiator, I got an average of 10 degrees F difference, low of 160
and a high in one spot of 175.  This was measuring during a burp session
with the cooling system and after the fan had cycled a couple times.  I do
have some orage crusty stuff stating to show on the driver's side of the
crimp, so I may need a radiator in the near future.  Van runs just at the op
ofthe red light on the gauge, but internal temp sensor in the Haltech FI
says the coolant in the small hose that runs from the #4 water jacket, has
never gotten over 208F.

Thanks for the help

Dimwitted Mose and Flying Squirrel