I've been trying to make my 1973 280se 4.5 m117 run as well as possible, assuring EVERYTHING has been done before replacing the valve stem seals that I know I need to replace. I have pulled, replaced, and pulled again the spark plugs. #4 and #8 are the most oily. I'm not sure why, but I'm guessing that those two have the worst valve stem seals. Another possible factor, (especially since I got ~10% lower compression numbers on the #8 cylinder than all others) may be that the rear cylinders are farther from the oil pump than all the other cylinders. I wonder if I could have a worn ring on that #8.
My only concern is the large puff or stream of oil smoke I make when I press the gas, let up on the gas, or start the car.
That's just my scenario and my issue. Yours may be different, but as was said above, changing the spark plugs every once in a while isn't as difficult as other solutions.
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My only concern is the large puff or stream of oil smoke I make when I press the gas, let up on the gas, or start the car.
That's just my scenario and my issue. Yours may be different, but as was said above, changing the spark plugs every once in a while isn't as difficult as other solutions.
Sent from my iPhone using Tapatalk
