My 1984 318i has a rattle/slap/knock thing going on when you first start it after it's been sitting about an 1hr or more. It goes away when the oil pressure light goes off (usually 1-2 seconds after start).
After it's been decently warmed up, it will pull to redline smooth as butter.
Once it gets fully warmed up, like 3/5-1/2 of the temp gauge, it will still pull smoothly but it is just noticeably noisier when doing so.
Am I right to suspect the timing chain tensioner/guides? Or is the engine toast (bearings/pins/etc)?
I recently did an oil change and put in 20w50 conventional.
Ideas?
After it's been decently warmed up, it will pull to redline smooth as butter.
Once it gets fully warmed up, like 3/5-1/2 of the temp gauge, it will still pull smoothly but it is just noticeably noisier when doing so.
Am I right to suspect the timing chain tensioner/guides? Or is the engine toast (bearings/pins/etc)?
I recently did an oil change and put in 20w50 conventional.
Ideas?
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