"Rogers, Bob J." wrote:

For any of you who intend to install a used oil cooler, you may want to
consider having it cleaned before use.  A lot of gunk can accumulate in the
cooler and cause it to be less than fully effective.  This may be the source
of higher oil temps in your engine, instead of inadequate air flow.  The
best place to have your oil cooler overhauled is Pacific Oil Cooler Service,
Inc. in El Monte, CA.  They specialize in servicing oil coolers for aircraft
engines and charge a lot for that service, but they will do the same work on
a non-aircraft oil cooler (such as a Mazda RX-7 oil cooler) for much less,
because they do not have to certify and yellow-tag it.  I talked to Wayne at
Pacific Oil Cooler and he charged me $75 plus shipping for the whole nine
yards, including thorough cleaning, pressure testing, straightening fins,
and alodining the cooler.  I highly recommend them.  Here is their web site
if you want more information.  Look under Services, then Overhaul, Repair
and Re-certification.

http://www.oilcoolers.com

 
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