jazzmandolin

Best method engine flush? I drained old super black quart low oil, form my new old loyale and put in 10 30 castrol syntec with a K&N filter, seems to have deminished the tick but it is still constant. Which is the best flush and how long should I leave additives in the motor? Is atf or marvins best and how long should each stay in? I think I read somewhere that someone fills full with atf runs only at idle for bout thirty minutes then replaces with new oil and filter. I am sure I will end up doing the oil pump seals possible oil pump and possibly the lifters later down the line but want to do a really good engine flush and clean before I start pulling parts! Also 400 miles after my initial oil change the level is still full and the oil is still clear, wondering if the oil is staying clean should I still do more flushing. 194,500 miles runs great but has pretty constant fairly loud lifter tap! Thanks for all your good input.