Re: Help with Canister Type Oil Filter

Posted by Ross On 2012/6/2 12:11:05

I'd say it has been working perfectly: particulate laden oil arrives at the outside of the filter. Lumpy gooey bits stay on the outside and drop to the bottom of the housing over a (long) period of time forming the sludge. Cleaned oil goes out the center tube, and in your case to the valve lifters next. On later cars they just dropped it back into the crankcase. Chances are your center tube is quite acceptably clean inside, but if you like you can dismount the filter, unscrew the fittings and get up inside the center tube with a gun brush and some carb cleaner.