Need Flank Drive Wrench
#1
Need Flank Drive Wrench
On my Volvo 240 DL, I am trying to replace the fan clutch. I got two bolts off, but two others will not come off..it even broke the open end of my wrench. My Volvo mechanic told me to use a Flank Drive wrench 6.10 mm using the box end. This wrench grips the flat of the bolts instead of the points. But I am having trouble finding one for sale. Does anyone know where I can get this tool?
#2
Snap-On Tools
#4
#5
I called Sears and the guy said he didn't have anything like that. Can you tell me model or give me the link that your talking about, please? I would really like to get this done tommorow if I can buy the wrench at Sears. The corners of bolts started to round a little so I don't have to many chances left.
#6
Something like this. http://www.craftsman.com/shc/s/p_101...&blockType=L17
If you go to sears and check out the combination wrenches. You should see the small radius in the corners of the boxed ends. Use the boxed end. Get a 6 point version. I use 12 points and haven't had a porblem.
Another option is this http://www.skhandtool.com/Default.as...e=10&pid=88514
What are you using now?
If you go to sears and check out the combination wrenches. You should see the small radius in the corners of the boxed ends. Use the boxed end. Get a 6 point version. I use 12 points and haven't had a porblem.
Another option is this http://www.skhandtool.com/Default.as...e=10&pid=88514
What are you using now?
#7
#8
My feeble brain tells me that there is no such thing as a fixed wrench/socket that will drive the flats of a bolt. The only way that would occur is if the wrench/socket was exactly the same size as the bolt - but that's would essentially make it a press-fit onto the bolt - not very practical. Since the opening of the wrench/socket must be larger than the bolt you only get a line of contact between the wrench/socket and the bolt. The so called "flank drive" just moves this line of contact away from the (weaker) points of the bolt and puts the line of contact onto a stronger section of the flats.
This link shows the Snap-on flank drive: http://machinedesign.com/content/con...-12-point-1103
This link shows the Snap-on flank drive: http://machinedesign.com/content/con...-12-point-1103
#10
#11
Sure could. All that has to come off to swap the pump. Those really aren't bolts, they're studs with nuts run down on them. Usually, soaking with PB Blaster overnight and judicious "cooking" w/ a propane torch does the trick. In an extreme case, I'd cut the nuts off or use a "nut buster" tool (no risque comments please) that breaks the nut. Even if the stud gets destroyed, there should be enough left after the pulley comes off to get it backed out.
#12
#13
Yes, a Dremel can be used carefully. After you've cut a deep groove in the nut use a cold chisel or screw driver and split the nut. The stud is just a bolt w/ no head. It has a shoulder in the middle. It screws into the water pump until it hits the shoulder. Try vice grips on the nut before you start cutting. If you ruin the stud they can be replaced. If you can't get it out, then it has to be drilled out or get a new water pump.
#14