Miata Mailing List: May 1999, Message #106

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>I was getting Dino ready for Dallas this afternoon...oil change, etc...and
>when he was up on the ramps, I noticed a little puddle of coolant that
>looked like it had come from the back of the underpan when we went up the
>ramp.  I checked the radiator, and the level was down a little.  I was
>going to replace some of the anti-freeze with water anyway, so I drained
>the radiator.  Then I took the underpan off, and after I had changed the
>oil and refilled the radiator with water, I let him run until the temp came
>up to normal, and then let him run some more.  Never did find anywhere that
>was leaking.  All of the hoses are dry, the radiator exterior is dry.  Any
>suggestions?  I'll go for a drive tomorrow and keep a close eye out, but
>damn, I hate a mystery!!
>
>Bill Kellenberger & Dino
>'90  Red  R-4RE
>Team Escargot
>Gateway Miata Club
>http://www.geocities.com/~gatewaymiata (club)
>http://members.xoom.com/kberger (personal)
>
Check the seam between the aluminum core and the plastic tank on top. 
Tango's started seeping there and it was only a short time before rad
failure.  Replaced the factory alumiminum rad with a thicker core brass rad.
 Work great!!

--
Bob Schnider & Tango
90A Red, eh... #1598
MCA, Sea to Sky Chapter
Deja Vu Racing
http://doc.schdist42.bc.ca/bob/