Important
- Thread starter bshaw
- Start date
Roxtar
NAXJA Forum User
- Location
- NW Indiana-Chicago area
Yea, whenever you don't torque bolts to spec they almost always are undertight.
Every time I torque a grade 8 bolt I'm amazed at how tight is right.
Always feels like I'm gonna break it.
Every time I torque a grade 8 bolt I'm amazed at how tight is right.
Always feels like I'm gonna break it.
HaleYes
NAXJA Forum User
- Location
- Clay County, IL
I called TNT just for kicks, asking for friendly advise. Turns out that I have an "old style" trackbar. The new ones take a 12mm bolt. The old ones are 10mm. I'm supposed to call back once I verified that I do have a 10mm(I measured, it's 10mm). Nice lady on the phone says they'll ship me a 12mm ball, in exchange for my 10mm. I'll ask for the correct torque spec. when I call back.
I'm no engineer, Are torque specs. the same across the board or does it vary for each application?
I'm no engineer, Are torque specs. the same across the board or does it vary for each application?
Usually, you'll see a torque spec for a specific bolt. It's figured using diameter, thread pitch, and hardness. Any good machinist's handbook will have tables listing the values.
Here's a key point: the torques will be listed for dry fasteners. If you lubricate the threads (say, with NeverSeez,) you'll want to reduce the torque value by 10-25%.
You may occasionally find a torque spec that's lower than expected for a particular bolt when there's a crush problem. I doubt you'll find that here.
Here's a key point: the torques will be listed for dry fasteners. If you lubricate the threads (say, with NeverSeez,) you'll want to reduce the torque value by 10-25%.
You may occasionally find a torque spec that's lower than expected for a particular bolt when there's a crush problem. I doubt you'll find that here.
HaleYes
NAXJA Forum User
- Location
- Clay County, IL
They tell me 25 ft.lbs.
That sound about right?
That sound about right?
Roxtar
NAXJA Forum User
- Location
- NW Indiana-Chicago area
sounds right.HaleYes said:
HaleYes said:
I just did the calculation for a 3/8" grade 8 bolt for you (close enough) using the equation in the machinists handbook and get 47 ft-lb. I seem to remember tightening mine to around 50 when last did it.
Also, I've been using the small RE joint on mine for a few years with the 3/8" bolt and it is never loose and not bent or broken. It's plenty for our usage.
Roxtar
NAXJA Forum User
- Location
- NW Indiana-Chicago area
You're right.Dirk Pitt said:
For some reason I was thinking much smaller diameter.
jeeplas
NAXJA member #936
- Location
- Roscoe, IL
Dirk Pitt said:
Didn't you have a birthday a couple of days ago. Happy Birthday!
HaleYes
NAXJA Forum User
- Location
- Clay County, IL
Thanks Adam!Dirk Pitt said:
What I was using was a 10mm allen head. IIRC, it's a grade 12.8.
What she is sending me is a new ball and a 12mm bolt that fits the ball. She also reminded me that I'd have to drill out the bracket to 12mm.
- Location
- Southwest IN
How old is the old style? The extra bolt you gave me fit my trackbar and I haven't had any problems (yet). I also don't DD mine much anymore. I better check the torque on mine tomorrow.
Was the new ball end a free replacement or did you have to fork out some $?
Was the new ball end a free replacement or did you have to fork out some $?
HaleYes
NAXJA Forum User
- Location
- Clay County, IL
Freebie as far as I know. All I gave her was a shipping addy. The bolt I gave you would be 10mm.
- Location
- Southwest IN
HaleYes said:
Hmm. Maybe I'll call TNT sometime in the future and see about a replacement.
Prepmech
NAXJA Member #981
- Location
- Neoga/Decatur, IL
Been using my lawn mower to skid logs around the yard. Got tired of having to get a running start and yank the chain because the tires wouldn't get any traction. Threw the drive belt off once, so I decided it was time for some new tires.
Rev Den
NAXJA Forum User
- Location
- Plainfield, IL
How did we miss this?
Happy Birthday bro.
----
Nice new treads Prep.
Rev
Happy Birthday bro.
----
Nice new treads Prep.
Rev
XJ&CHZ4ME
NAXJA Forum User
- Location
- Unionville, MO
going to pick up the new (to me) tow rig tonight. 02 crew cab powerstroke. it hit a deer and needs a front bumper and grill and the owner took the insurance $ and is selling as is. Good thing I have stock front end parts from our farm truck that will match right up 
Ramsey
NAXJA Forum User
- Location
- Shreveport, LA
Slackers I see, I'm retarded, was out til 630am the night before my final, managed to study in the car on the way...still think i did rather well though.
Rev Den
NAXJA Forum User
- Location
- Plainfield, IL
Important tip:
Make sure the curtains are closed on you hotel room, before you strip down for the night.
Especially when you are on the first floor and you window is less then 10' away from the dining room windows of a Lone Star Steakhouse.
Rev
Make sure the curtains are closed on you hotel room, before you strip down for the night.
Especially when you are on the first floor and you window is less then 10' away from the dining room windows of a Lone Star Steakhouse.
Rev
- Location
- NE Indiana
Saw Buffet at Deer Creek (or whatever verizon bs name it has now) on Tuesday...good thing we take a bus from the fort... PARTY
Got my privacy fence gates built yesterday...finally all done with the fence...
less than 9 weeks to get the XJ buggy together...
mac 'all work and all wrenching til october' gyvr
Got my privacy fence gates built yesterday...finally all done with the fence...
less than 9 weeks to get the XJ buggy together...
mac 'all work and all wrenching til october' gyvr
