Re: PCV on a V6 ?
It all depends on the year of the engine, what I see in the pic you posted is the setup that was used on all GMC V6 engines from 1968-74 and by the looks of the valve covers they are 1972 style. 1966 and earlier had the breather attached at the back of the engine block, in 68 that was capped off and the breather was moved to the valve cover. Leaking may me due to the valve cover was stamped out for a breather that fits on like the oil cap and has a gasket, you just need the right breather.
|