going to PA to pick up another Isuzu diesel engine for one of my forklifts, this new engine is to replace the one I rebuilt two years ago with a split cylinder liner,evidently the cyl head is now cracked on the old one or has cracked as it gets pressure in the cooling system enough to blow the rad cap off..ive redone the head and installed a new head gasket but it keeps blowing,so its easier to replace the whole engine with a new surplus one once I trade all the accessory drives over. This second forklift has chosen to be a really tough nut to crack,EVERYTHING has fought me tooth and nail on it. Patience and drive has always been a strong point of mine but this one is wearing me out