I had leaks in each header tank and each core where it's soldered to the tank. Difficult to explain but when soldering the lids on the tanks if you use too much heat all the solder around the cores will just melt and drop on the ground. It's been years since I've done much soft soldering so it took me some time to get the hang of it again.
5 out of the 6 cores were completely blocked so I pickled the core with the tanks removed in a 10 to 1 mix of hot water and hydrochloric acid (a bit dangerous:eek:). Repeated this 3 times and once complete I washed the core in laundry detergent as the caustic does a good job of neutralizing the acid. I then sandblasted the areas that needed soldering to keep things as clean as possible.
Once done I pressure tested the core to about 20 psi
The rest was easy, sandblast and paint. A bit of masking tape over the original name plate stops any damage to it during the sandblasting.
I'm happy with the result even though the paint is a little different to the original, I couldn't find anything exactly the same
Would you believe that took me 2 days by the time I fitted it properly to the car and another night in the shed trying to fix the water tap which failed
Cheers Simon:)
