- May 19, 2020
As part of my single turbo build I purchased an "upgraded" CSF full aluminum radiator in anticipation of cooling problems and to also allow for possible repositioning of the thermostat if required. As the build progressed I did eventually have to cut and re-weld the thermostat fitting in order to get it (the thermostat) and the huge 4" turbo inlet/suction pipe to fit in the cramped space. At the end of the build I decided to pressure test the cooling system to ensure the integrity of my work and avoid any issues down the road, to my surprise and dismay the only thing found leaking was the BRAND NEW fully welded "upgraded" radiator which never once saw coolant ! I noticed that the leak occurred at the tube sheet adjacent to repositioned thermostat nipple, could it be the breach was caused by heat of the weld? since its a relatively small leak (seeping coolant and slow pressure drop) I plan to purchase an aluminum soft solder repair kit to address this issue, wish me luck!