Big Torque Wrench

[ritcheyvs]

The torque spec for the nuts/bolts on my back wheels is 202-235 ft-lb but my old trusty 1/2 inch torque wrench only went to 150 ft-lb. I no longer believe in "tighten it all you can" after shearing a wheel stud on my 1966 Pontiac. So I looked for a bigger torque wrench. Most of those higher-range torque wrenches were 3/4 inch drive which would also require a new set of pricey big sockets. Then I saw and ordered this TEKTON 24340 wrench on Amazon which is still 1/2 inch drive and goes up to 250 ft-lb. I have no easy way to check the calibration but it looks and feels like a quality tool and it will do what I need done. The only negative so far is that it's about 2 ft long and won't go in my toolbox.

 

[Wagtail]

Hopefully, as a calibrated instrument, it came with its own carrying case. That wasn't mentioned if it was included in the Amazon link.

 

[murphy1244]

Hopefully, as a calibrated instrument, it came with its own carrying case. That wasn't mentioned if it was included in the Amazon link.

I found this Set Includes:

(1) 1/2 in. Drive Click Torque Wrench
(1) Storage Case
(1) Instruction Sheet / Torque Conversion Chart

 

[PILOON]

To extend the range all you need to do is extend the leverage.
ex: on a torque with 12" handle add another 12" (24" pipe that will slip over the 12") and then 2X the actual readings.

Some brands of torque wrenches actually offered a factory option. (seen in my old Snap-On cataloq)

 

[xring100]

The loader bolts on my la1535 have a torque spec of 272 -318 ft-lbs and the rear lug nuts are 254 - 29# ft-lbs
The torques on my BH27 bush hog are something around 600 lb-ft

These specs exceed my 250 ft-lb wrench
I borrow my neighbors proto torque multiplier
Heres as cheaper version.
7367 OTC Tools Torque Multiplier, 1000 Lbs-Ft 7367 731413570179

 

[SPYDERLK]

To extend the range all you need to do is extend the leverage.
ex: on a torque with 12" handle add another 12" (24" pipe that will slip over the 12") and then 2X the actual readings.

Some brands of torque wrenches actually offered a factory option. (seen in my old Snap-On cataloq)

How would that increase the torque at actual readings?

 

[coobie]

The torque spec for the nuts/bolts on my back wheels is 202-235 ft-lb but my old trusty 1/2 inch torque wrench only went to 150 ft-lb. I no longer believe in "tighten it all you can" after shearing a wheel stud on my 1966 Pontiac. So I looked for a bigger torque wrench. Most of those higher-range torque wrenches were 3/4 inch drive which would also require a new set of pricey big sockets. Then I saw and ordered this TEKTON 24340 wrench on Amazon which is still 1/2 inch drive and goes up to 250 ft-lb. I have no easy way to check the calibration but it looks and feels like a quality tool and it will do what I need done. The only negative so far is that it's about 2 ft long and won't go in my toolbox.

Bought the exact same wrench a few weeks back.Decent torque wrench for the $$ spent IMHO.

 

[xring100]

How would that increase the torque at actual readings?

I wondered the same thing. If the wrench breaks/pivots at the head. Only thing i see happening is reducing the input force to reach a given torque

 

[Streetcar]

To extend the range all you need to do is extend the leverage.
ex: on a torque with 12" handle add another 12" (24" pipe that will slip over the 12") and then 2X the actual readings.

Some brands of torque wrenches actually offered a factory option. (seen in my old Snap-On cataloq)

extension takes less effort to achieve torque, but does not multiply. I need to check auto correct before posting

 

[xring100]

extension takes less effort to achieve torque, but does multiply it

If the wrench is set to break over / click at 250 lb-ft it will still click at. 250 lb-ft unless said extension is placed between the socket and wrench drive head. Doubling the handle length would still leave you with a 250 lb-ft wrech

 

[TJP89]

How would that increase the torque at actual readings?

Torque is a factor of distance from pivot point and force in direction of rotation. The longer the handle, the bigger the force. The right angle doesn't matter, the force is still transferred. However, if the wrench is set to ratchet at a certain torque, added torque won't help as the wrench will just ratchet under the added force.

 

[SPYDERLK]

extension takes less effort to achieve torque, but doesnt multiply it

If the wrench is set to break over / click at 250 lb-ft it will still click at. 250 lb-ft unless said extension is placed between the socket and wrench drive head. Doubling the handle length would still leave you with a 250 lb-ft wrech

I think he meant doesnt.:confused3:

 

[xring100]

I think he meant doesnt.:confused3:

Ah that's about the worst possible spot for a typo

 

[s219]

I have the big Tekton wrench, and it is a good quality tool.

 

[oosik]

I ended up with a Sears 1/2 inch torque wrench that goes to 250 pounds. As I remember it was around $200. I have no idea how well its calibrated - I'm certain its a lot more accurate than any guess I could make. I know one thing for d**n certain - I'm don't need the quality of a 3/4 drive Snap On torque wrench nor the going price.

 

[pmsmechanic]

There is quite a range for the torque value on those bolts. 250 foot lbs means that you are pushing with a weight of 250 lbs on the end of a one foot long wrench. 125 lbs on a two foot long wrench and so on. How much do you weigh? If you weigh between the torque values listed, then your weight on the end of a one foot long wrench is the correct torque.

Get a two or three foot long breaker bar and figure out how hard you have to push on the end and go from there. You will be close enough on your final torque values.

 

[RedNeckRacin]

Hhmm I think my Kobalt torque wrench goes to 250 or 260 ftlbs? Its only half inch drive. To bad the lug nuts on the truck need around 450 ftlbs. Those 3/4" torque wrenches are mucho dinero!

 

[PILOON]

If the wrench is set to break over / click at 250 lb-ft it will still click at. 250 lb-ft unless said extension is placed between the socket and wrench drive head. Doubling the handle length would still leave you with a 250 lb-ft wrech

The torque multiply was only for the Snap On TQ-XX series which were a dial type that used some sort of flex steel flat blade that drove the pivot that moved the needle.
The Snap On TQ series dates back to WW2 and relied on the user's eyes to stop and not a 'click'.
I have a couple of that style and once needed them calibrated and to my surprise they were very accurate even 50 yrs later.

I needed mine to calibrate slip clutches on aircraft autopilot systems and as such the needed to be calibrated annually.
With dial type you can read existing torque settings while click style is more of a 'go-no go'.

 

[xring100]

The torque multiply was only for the Snap On TQ-XX series which were a dial type that used some sort of flex steel flat blade that drove the pivot that moved the needle.
The Snap On TQ series dates back to WW2 and relied on the user's eyes to stop and not a 'click'.
I have a couple of that style and once needed them calibrated and to my surprise they were very accurate even 50 yrs later.

I needed mine to calibrate slip clutches on aircraft autopilot systems and as such the needed to be calibrated annually.
With dial type you can read existing torque settings while click style is more of a 'go-no go'.

Oh okay that makes sense

 

[VictorW]

I have this torque wrench from this company for the tractor and my truck wheels. CDI 2502MRMH
I have also bought two others for other specs while working on things. They come with a certified test sheet and I had one checked locally and it was as the test sheet specified. Prices are reasonable and the wrenches are built well. The person at the local test place told me the CDI brand is a division of Snap On. Just thought I'd throw this out if someone is shopping around.