How to torque drive shaft bolts on Gl1100


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Keegster1120
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How to torque drive shaft bolts on Gl1100

Post by Keegster1120 » Wed Jul 03, 2019 10:42 am



Hey guys I just had a quick question. The three bolts on the drive shaft stem have a hard time clearing a socket driver so I had to use a crescent wrench to loosen them off to remove the wheel. My question is how do you torque these bolts to spec if it seems impossible to get a torque wrench in there. Is there a special extension that will allow the torque wrench to clear the shaft and be able to torque it to spec? Thanks in advance



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WingAdmin
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Re: How to torque drive shaft bolts on Gl1100

Post by WingAdmin » Wed Jul 03, 2019 11:18 am

I've always just used box end wrenches on those bolts. You can simulate a torque wrench using a box end wrench and a spring scale or luggage scale, all it takes is a little bit of math.

Measure the length between the center of each end of the wrench, in inches. In this case, it would be the distance between the center of the two rounded holes:





Let's say, for example, it is 9 inches. Take this number and divide by 12. That gives us 0.75 feet.

Now let's say we need to tighten to 45 ft-lbs (just a random number I picked, not the actual amount for this application). Take the desired torque value, and divide by the length of the wrench, in feet. In our case, 45 ft-lb / 0.75 feet = 60 lbs

So take a spring scale, hook it into the end of the box end wrench, and pull on the spring scale until it reads 60 lbs. You have now torqued the bolt to 45 ft-lb.

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virgilmobile
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Re: How to torque drive shaft bolts on Gl1100

Post by virgilmobile » Wed Jul 03, 2019 11:57 am

This method works well.Done it myself when needed.
Usually I rely on the German torque guide.
"Goodentite" :D
(use your best German voice).

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WingAdmin
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2007 Aspen Sentry Trailer

Re: How to torque drive shaft bolts on Gl1100

Post by WingAdmin » Wed Jul 03, 2019 12:01 pm

virgilmobile wrote:
Wed Jul 03, 2019 11:57 am
This method works well.Done it myself when needed.
Usually I rely on the German torque guide.
"Goodentite" :D
(use your best German voice).
Me too...after so many years of doing this, I'm a pretty good judge of torque by feel. Critical ones (steering head bearing bolts, axle bolts, etc) I'll always measure though.



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