I replaced the two exhaust valves on Cyl 3. It was showing a misfire (p0303). It had about 60psi on that cylinder, the rest showed around 120. A leakdown showed that it was leaking out the exhaust valves. I pulled the head with the engine in the car, so the flywheel cover wasn't touched. It has the old style stick tensioner on it and it was in great shape (I've only ever seen the newer style tensioner cause a knock sound). After I burped the radiator I drove it about 10 miles and reset the cel (had 10 codes stored) and drove it some more. The CEL didn't come back on, and I did notice a hard crank, but nothing seemed to be dimming and my meter was at work so I assumed it was a battery on its way out.
