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Originally Posted by t walgamuth
is to be expected. perhaps the winter fuel is contributing to it. my diesel mechanic farmer brother friends tell me that if the pump is timed and mixture adjusted to optimum some stray rattling and pinging is expected.
tom w
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I was getting some nasty ping at cruising speed after running WVO blend all summer, and then going back to pump Diesel. It wasn't something the car was doing in it's pre- WVO days, so I was pretty sure it must have been caused by fouled injector tips. I tried several brands of Diesel treatment, including the legendary Diesel Purge procedure- all of which seemed to bring temporary relief. Finally, I ran a full bottle of Kleen-Flo brand through half a tank- this seems to have fixed it permanantly, after several fill ups, we're still good.
I also read in a Chilton's manual that if the timing chain tensioner is worn out, it will result in pinging noises at cruising speed.
Dave
1976 300D