If you take out the petcock you should be able to poke a long screwdriver or wire in it & it will gush out. They do accumulate a lot of crud down there & that can cause overheating. You may have to pull a freeze plug to flush it out.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne Super In the Gallery Forum