Anyone have anything I can try to get these damn obnoxious hydraulic valve lifters to stop ticking? I have already bought 8 new ones from parts store and bled them and put them in. It was quiet for a little while and now the ticking is back. Changed oil and all that and nothing, tried lucas oil stabilizer with oil change and nothing. After next oil change they were still ticking so I decided to try addingsome sea foam to the oil and the ticking stopped for a while ten came back, tried sea foam again and it didn't help. Don't know what else to try to get these things to be quiet.