Contour Enthusiasts Group Archives Forums General Troubleshooting Lifters Clack on Start-Up

Nothing maintains the oil pressure overnight,the valve in the filter just stops the filter draining so that at least a 'slug' of oil is ready to be pumped.The tensioners are located at the END of the main oil gallery and get pressure after the crank but before the cams.If the lash is too bad have it changed or you could 'jump the sprocket' with the chain and hit a valve because the timing is off.NEVER rev the motor at startup until the o/p gage has 'kicked' and shown pressure.The early Duratecs did wear out the chain guide rails very quickly, the plastic material was changed on later engines.Regards TAH ,Haines Motor Sports Inc