I know we've talked about this before, but I'll post it up here again because there are quite a few new folks on the Forum...You've gotta tighten that filter like your life depends on it (it does). This does NOT mean finger tight + 1/4 turn. I know that might be how your gramps tightened the filter on his '38 DeSoto, but this is a motorcycle and when the filter comes off, that oil goes right onto your rear tire. A blown motor could be the least of your worries.
rondothemidget wrote:
>I would have hand-tightened it if my hand could have had a better grip. I used a socket wrench and tightened it like I do on my cars; one little nudge tighter than the point of hand tightening just to be safe. My brother's a Harley mechanic and he's never used a torque wrench for oil filters.<
This method simply DOES NOT WORK. I think we all can testify to this at this point, and frankly I don't care what someone's brother does at their Harley shop, that doesn't make it right. BTW: Per HD the oil filter torque rating is between 14~21 ft/lbs. you may want to call your brother and let him know, i'm sure his customers would appreciate that.
Motorcycle oil filters have different installation instructions than car filters.
http://cbrworld.net/forums/thread/248252.aspx
basically, here's the rule:
If you don't have a torque wrench:
Put a light film of oil on the rubber gasket of the oil filter.
Put it on hand tight.
Then turn it another 3/4 - 7/8's of a turn. It should be so tight you fear crushing the filter canister.
When we put them on here at the shop we do use a torque wrench and we install them at 14~16 ft/lbs.
Just for fun...we tested a few oil filters on brand new buddy scooters to see how much torque it would take to remove one...
20~30 ft/lbs. were required on the 4 bikes we tested. So it's pretty clear the factory isn't installing them by hand + a 1/4 turn.
Doing your own maintenance is great...as long as you do it right. Saving $40 on an oil change isn't worth crashing or buying a new motor.