I don't think leak is constant. In one month (100 miles per week) it is only down about 1-2 inches in the rad and the overflow jug is empty. The only evidence I have seen is the stain along the seam near the top and the residue on the cross member. My mechanic says it will only be seen leaking when I first start it up, before the thermostat opens up. Dosen't make sense to me, but he said there is more pressure then. But the evidence seems pretty good and I don't really want an overheat, possibly on a long trip sometime, so I'll just have it R&Rd and be done with it. Thanks. BTY, the re-crimping idea sounds good. Would have been just the thing when I was young, single, and much poorer, but now I just don't have the time to mess around with it.

INLINE SIX POWER!
300 Cubic Inches of Low RPM Truck Torque! And twin-I-beams too!