Sportbikes.net - View Single Post - Caution on using a torque wrench on the oil drain plug

ster1 · 06-22-2007, 11:55 PM

Thats common for torque wrenches, the 'click'. Older types were just bars that bent a certain way per torque and you read it on a scale, kinda primitive but effective. Also, I haven't read the manual on this particular subject, but I am quite certain the factory put that bolt in dry. Torque values are, unless specified otherwise, are dry. I was an aircraft mechanic for years, and I know what I'm talking about. Giving a dry torque value for your drain plug is almost criminal. There is no way you're going to get that dry, thats the catch-22. Putting dry torque on a thread that has oil on it over-torques and strips it, as you have seen. Best thing to do is like you mentioned, tight enough to seal, not tight enough to strip. Sorry for your troubles!

06-22-2007, 11:55 PM	#4 (permalink)
ster1 Backin it in Join Date: Apr 2007 Location: colorado Age: 37 Posts: 717 Casino Cash: $8744 Sportbike: 2006 Yamaha FZ6, 2000 XR 650 R, 1986 CR 250 R, 1996 CR 250 R	Thats common for torque wrenches, the 'click'. Older types were just bars that bent a certain way per torque and you read it on a scale, kinda primitive but effective. Also, I haven't read the manual on this particular subject, but I am quite certain the factory put that bolt in dry. Torque values are, unless specified otherwise, are dry. I was an aircraft mechanic for years, and I know what I'm talking about. Giving a dry torque value for your drain plug is almost criminal. There is no way you're going to get that dry, thats the catch-22. Putting dry torque on a thread that has oil on it over-torques and strips it, as you have seen. Best thing to do is like you mentioned, tight enough to seal, not tight enough to strip. Sorry for your troubles! __________________ "'Tis better to be thought a fool, than to speak and remove all doubt" -Aberham Lincoln-