I have yet to take the wheels of the Magna and put on the new tires. I threw my back out before I got to it and I am still healing up. Anyway, when I get to putting things back together, I was wondering where in the torque spec range I should be. How do you folks decide about how tight something should be? Low end, high end or in the middle.
Thanks.
It depends on the size of the bolt or nut. As an example, I tighten the rear axle nut to the max using a 1/2" drive socket on one side and a foot long adjustable wrench on the other. It never came loose yet.
If the wrench you are using begins to hurt your hand, they you are probably over tightening (or have stripped the nut or bolt!).
According to the Service Manual, the front axel bolt should be tightened to 43 foot pounds and the pinch bolts to 16 foot pounds. The rear axel nut tightens to 63 foot pounds.
These are for the third generation models. I don't know what they are for the vintage Magna's. If you don't have a torque wrench, get them good and tight and check regularly. A good torque wrench is worth the money you spend for it.
To specifically answer your question I like to torque fasteners from the mid to high end of their ranges.
According to the Clymer Manual for your '82 Magna, the front axel bolt should be tightened to 40-47 foot pounds and the pinch bolt to 11-18 foot pounds. The rear axel nut tightens to 43-58 foot pounds and the pinch bolt to 14-22 foot pounds.
Snap-On sells a very nice torque wrench, "TECHWRENCH(tm)", part# TECH2FR100. A link to some info. on it.... http://tinyurl.com/mnv5r. These run about $300 but worth the money IMHO, now I just need some extra cash! LOL. I used one of these when I put a new engine in my truck and it worked very well.
Hey guys - is my rear wheel going to fall off? Just put on a new rear tire and according to the owners manual that came with the bike it shows rear axle nut torque to be 35 lb-ft. You all are talking about 60+ lb-ft. Now you have me worried. Is my manual wrong? Had to go out this afternnon for a while to make sure the new tire was round - it was and what a great day to ride - just wish I had more time. 8)
I guess I didn't make myself clear, which seems to be happening more and more to me. I have a torque wrench and a manual. I was wondering this:
If the manual calls for say 35-42ft.lbs, do you chose the 35, the 42 or somewhere in between the high and low for your torqueing?
Thanks to all.
QuoteTo specifically answer your question I like to torque fasteners from the mid to high end of their ranges.
Looks like Jeff got it right. The rest of us don't read too good (I was following along the lines of the
other camp! LOL). Anyway Thomas, just keep asking 'till you get your answer, no shame in that is there?
Curtis
Thanks Curtis,
I see that Silverado actually answered my question in the first line of his reply i.e. mid to max of the torque. It doesn't look like I will get to the tire change until Wed. when it is s'pose to be rainy. It's going to be nice for a few days and I want to ride. It all depends on how my back is feeling. If I can't lift my feet off the pegs or hold up the bike, I will wait even LONGER to get out.
Thanks to Silveradocowboy and the rest.
Quote from: SilverFoxHey guys - is my rear wheel going to fall off? Just put on a new rear tire and according to the owners manual that came with the bike it shows rear axle nut torque to be 35 lb-ft. You all are talking about 60+ lb-ft.
Double check your manual and make sure of the torque, sometimes the way they list the settings can be confusing. I don't have the spec.'s for 3rd Gen, maybe someone can verify yours or Tom's spec.'s for your particular year model. I doubt your wheel will fall off but under heavy acceleration the chain adjustment could slip causing the sprockets and chain to wear prematurely. Keep an eye on the chain adjustment marks to see if they move any.