[Healeys] knock

[healeymanjim]

last week someone suggested changing the oil and adding some Lucas Oil Stabilizer to see if that would stop the knock.  
since i had already drained the oil in preparation for tearing down the engine, i decided to give it a try.  got Castrol 20-50 
dino oil and i already had a bottle of STP so i put that in, not expecting any change.  well, so far, i have been driving it 
everyday and have not heard a knock on startup.  i am not a believer in additives, so not sure how long my good luck will 
last.  might be because it is a lot colder now than a few weeks ago(50s-60s F), but i am certainly a happy driver.  thanks to 
everyone for the help.