diagnosing a blocked radiator??

[Steve Jones]

I cleaned out the radiator on my P Type Lea Francis using 50% Brick Cleaner (Hydrochloric Acid) back in 2005. These radiators have a unique shape and a wet shell and are therefore rather more expensive to re-core than those on Sevens to say the least!! It was heart in mouth time and I bottled out after leaving the stuff in for 15 minutes. The amount of crud that came out was unbelievable and I remember looking through the filler neck and seeing bright, shiny copper that looked as if it was brand new. The down side, of course, is that it also removes bits of crud that had been blocking slight leaks in the core but that was something that was sortable to the extent we took the car down to a very hot Angouleme in France later in the year with minimal bother.

I'd go for it. What have you got to lose?

Steve