torque wrench?

[Striple]

i'm going to install my own flyscreen on my striple. the instructions call for a torque wrench in order to ensure that the bolts are tightened to 3Nm. do i actually need to go buy a torque wrench or is triumph just being super safe for liability reasons?

[BigRedandRiding]

3nm is pretty light, torque-wise. I think it may be equal parts liability and desire not to crack the flyscreen. Use loctite and don't over-tighten and you should be fine.

That said, a good torque wrench(say, scaled up to 100nm) is nice to have in the shop for things like bars risers, engine bolts and anything that involves aluminum (soft metal) threads.

[MotT3]

3NM is Very light. just nip them up, don't give it "force" just until you feel it bite a little. Loctite (ie thread lock is not a bad idea) as previously mentioned.

I also agree a torque wrench if you intend to carry out regular maintenance on your steed is a must...well for me anyway.

[Striple]

thanks for the response!

[BonnieGreenDon]

Is there a formula or scale available to convert ft/lbs to NM?

The torque wrenches I have looked at only have ft/lbs scale.

[Striple]

i'm sure there's a plethora of web sites with online conversion calculators and/or scales. just do a google search. i always just use google directly for a specific conversion. just go to google.com and type in 'XX foot pounds to newton meters' or 'XX newton meters to foot pounds'. at the top of the search results page it will have the conversion listed.

[sjalex]

Originally Posted by Striple

i'm sure there's a plethora of web sites with online conversion calculators and/or scales. just do a google search. i always just use google directly for a specific conversion. just go to google.com and type in 'XX foot pounds to newton meters' or 'XX newton meters to foot pounds'. at the top of the search results page it will have the conversion listed.

google really is the best tool for that.

that being said, the conversion is:
1 ft. lb. = 1.35581795 Nm

1.4 Nm is probably close enough for most applications.

Since you're working with a wrench calibrated for ft. lb. though you'll want the reciprocal:
1 newton meter = 0.737562149 foot pounds

so multiply the specification in Nm by .74 and there's your wrench setting in ft. lbs.

[LeMans]

Most torque wrenches will royally screw up such a light setting. Don't forget that such tools are most precise around the middle of their scale.
Most of the time the top and bottom 20% of the scale are going to be off the most.

3Nm is 26.55 Lbin, way too low for most wrenches -unless you have something like a Park Tools torque wrench for bicycles handy.

Even if you do, I would just do it by hand and secure the bolts with blue loctite.

For torque conversions, you can use: http://hemsidor.torget.se/users/b/bo...2_e.htm#torque