'87 Noisy Lifters After Sitting
Parked the car late last Fall. It ran fine. The car sat for 6 months and was not started until late this Spring. When it started, it made a hell of clatter. This happened once before when I bought it. It had sat for several months and then quieted down rather quickly once ran. I figured the lifters bled down. This time, it never really quieted down. I added some Marvel Mystery Oil, about 8 oz. thinking there may be some varnish on the lifters preventing them from building up. I drove it gently for 10 miles Doing the long screwdriver test, cylinders 4, 5, 6, & 8 were suspect. Cylinder 4 did start to quiet down. I'd like to think miracles can come from a can, but I am planning to take the rocker covers off just to make sure the rocker arms are OK and nothing backed off.
It has Amsoil in it that has about 700 miles on it in the past 2 years. I'd like to be able to flush it and go back to Mobil One.
Any thoughts or previous experience would be appreciated. Thanks!