my 1967 volvo 122s won't start wire from stater to another part don't know what it is. an you help me what it is?

Clean up the wire at the battery and connect them correctly Also make sure ground strap is good from body to framer then go To autozone and buy a tester for head gskt leak.easy to use and it will tell you what's going on fill the tube in the kit with chemical they give you And then open rad cap start car and suck in fumes with the tube and if it change colors in a few min.s it blown or warped head. You have been Driving it hit hope it did not crack anything take head to machine shop They can tell you what it need good luck

Ing switch come and goes to starter solonoid sometime they have a fuseale link put in ck with test light thewireyou looking for is the one that's hot when you turn ing switch to start and them it schould go away when you release switch at solonoid down by starter you schould see it Red wire test for current when starting switch isturned

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