Use to have '88 4x4 PU when timing chain bore hole on cover and water got in the engine. This was before I knew about infamous timing chain reputation. Living paycheck to payckeck at the time so stupidly drove it too long before having it fixed (hard lesson learned). Eventually engine went bad after hitting 200,000 mi and sold it to buy '84 4runner (which I "fankensteined" it to feul injection unsuccessfully). Now have '85 4runner and keeping an "eye" at the timing chain problem.