- Apr 19, 2006
'82 FJ-40---Just when I thought all (or most) of the oil leaks were cured another one emerges, somewhere low on the PS of the block. It isn't coming from the valve cover gasket, or the side plate, or the oil filter gasket, or the oil galley plug. After driving until the engine reaches operating temp, there's a significant coating of oil all over the oil cooler and all the hoses around it. I've cleaned up the area and attempted to ID the source of the leak without any success. There's no leak when in park and idling, or when parked with the engine off. Before I start tearing things apart, has anyone ever sprung an oil leak from the o- rings on the back side of the oil cooler? Any other ideas?