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Re: Oil blow by
Does the '79 have a cat converter? If thats starting to plug up it'll blow oil out the breather, and it will do it for a long time before the cat becomes plugged enough to cause driveability issues. Had it happen with my '83, thought the same; motor getting really tired and blowing oil. Nope, months later its starting to get a bit lethargic and I can hear it in the exhaust. Plugged cat. Back to normal bit of oil blowback after that.
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