Torque Wrench #s - Wrist Twisters
 
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post #1 of 12 Old 04-05-2016, 12:14 PM Thread Starter
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Torque Wrench #s

Was looking around on 919.org and found a torque chart for the 919, I added a in/lb field to it as I only have a in/lb torque wrench at home. Do these look right?

Common Torque Values







Front wheel


Brake caliper mounting bolt 22 ft/lbs or 264 in/lbs
brake pad pin 12 ft/lbs or 144 in/lbs
caliper bracket to forks 36 ft/lbs or 432 in/lbs
main axle bolt 43 ft/lbs or 516 in/lbs
axle pinch bolts 16 ft/lbs or 192 in/lbs
front brake disk bolt 14 ft/lbs or 168 in/lbs
steering stem nut 76 ft/lbs or 912 in/lbs
steering bearing adj nut 18 ft/lbs or 216 in/lbs
triple clamp (upper) 16 ft/lbs or 192 in/lbs
triple clamp (lower) 29 ft/lbs or 348 in/lbs



Rear wheel

main axle nut 69 ft/lbs or 828 in/lbs
sprocket nuts 80 ft/lbs or 960 in/lbs
front sprocket 40 ft/lbs or 480 in/lbs







MISC

oil filter 20 ft/lbs or 240 in/lbs
oil drain plug 22 ft/lbs or 264 in/lbs
clutch spring bolt 9 ft/lbs or 108 in/lbs
fuel tube banjo bolt 16 ft/lbs or 192 in/lbs
spark plugs 9 ft/lbs or 108 in/lbs
rear shock mount nuts 31 ft/lbs or 372 in/lbs
handlebar clamps 20 ft/lbs or 240 in/lbs
engine hanger bolts front & rear 37 ft/lbs or 444 in/lbs (used for frame slider install)

I have it in a excel spreadsheet

07' 919 - In Progress

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post #2 of 12 Old 04-06-2016, 05:46 AM
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I only checked the first two, but they are correct. If your spreadsheet conversion formula is consistent then they should all be.

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post #3 of 12 Old 04-06-2016, 09:08 AM
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A shout out to the newbie mechanics: Don't buy Harbor Freight and expect satisfactory torque application.

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post #4 of 12 Old 04-06-2016, 10:20 AM
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Quote:
Originally Posted by Bigdaa View Post
A shout out to the newbie mechanics: Don't buy Harbor Freight and expect satisfactory torque application.
I learned this lesson torquing the oil pan on to my brand new aluminum block for my car...

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post #5 of 12 Old 04-06-2016, 12:54 PM
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Quote:
Originally Posted by badmoon692008 View Post
I learned this lesson torquing the oil pan on to my brand new aluminum block for my car...

Ouch! I can feel your pain today.

I had a 3/8 drive 50 lb torque wrench from Harbor. Took it to the calibration department where I worked at Raytheon. Their findings were that it could NOT be calibrated over the full range. Not at all!

I used it for a while as a "Torque Amplifier" until I broke it's little neck and sent it to Valhalla.

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post #6 of 12 Old 04-06-2016, 01:36 PM
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Over the years I've found that most torque wrenches are accurate in their midrange, and not good on the high or low end. On another note, I picked up a Craftsman 3/8" drive 10-75 ft lb yesterday on sale for $39.99. I was in there to pick up some ignition wrenches and passed by. They had other models on sale also. Not sure if it's a national thing, or just my local store.

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post #7 of 12 Old 04-06-2016, 01:44 PM
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Quote:
Originally Posted by HondaJim View Post
Over the years I've found that most torque wrenches are accurate in their midrange, and not good on the high or low end. On another note, I picked up a Craftsman 3/8" drive 10-75 ft lb yesterday on sale for $39.99. I was in there to pick up some ignition wrenches and passed by. They had other models on sale also. Not sure if it's a national thing, or just my local store.
I used to work at a shipyard and their spec which I'm sure was driven by a Military Spec was that the were only accurate from 1/8 to 7/8 of the scale. Those wrenches were not Harbor Freight.

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post #8 of 12 Old 04-06-2016, 02:03 PM
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Even GOOD click type torque wrenches are out of whack at the lower end of range.
Generally speaking, most GOOD click types should not be used for anything remotely critical or needing accuracy, at less than 20 % of the wrenches full rating.
Thus underscoring how rotten an idea it is to use a 250 ft lb click torque wrench from your automotive chest on your motorcycle.
Even then, how many typical automotive fasteners need anywhere near 150 let alone 250.

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post #9 of 12 Old 04-08-2016, 06:24 PM
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Don't forget the click type need to be set back to zero after use. I use beam types and bought only USA made old school ones, they cost more and you don't use them often, but they supposed to be very accurate.

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post #10 of 12 Old 04-08-2016, 08:34 PM
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What about those crazy digital attachments? They're adapters for any 3/8 or 1/2 and they've got an led to show how much torque is being applied..

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post #11 of 12 Old 04-09-2016, 08:30 AM
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Quote:
Originally Posted by KarlJay View Post
Don't forget the click type need to be set back to zero after use.


+1

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post #12 of 12 Old 04-09-2016, 04:54 PM
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Quote:
Originally Posted by Bigdaa View Post
+1
++1 on that.

And while we're at it on click type torque wrench nuances re accuracy, for maximum accuracy, pre stress the wrench by a series of torques set to the limit of the wrench.
Hmmm, how practical is that without a decent jig.
Try doing that with a nut in a good Record vice and a 150 ft lb wrench.
Even though the bench can be held, the Record jaw inserts will gouge deform from the nut trying to turn !

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