torque wrench?

[FLG]

I was thinking the same thing. I've got some snap on wrenches and swear by them. I inherited them from my grandpa who had them in his shop back in the early 1960's. Take care of them and get them recalibrated every once in a while just to be sure and they'll last a really long time. It's going to be spinning at some good rpm's, I would get a decent wrench, even if you have to rent it, and torque it per spec. That would suck to lose a motor because you wanted to skimp on 1 bolt. I know there's a slim chance, but at 6500rpm I don't want to be playing with chances, but that's just me.

It aint coming loose.


Just an FYI crank bolt on my Dodge 440 motor torque specs are 135 ft/lbs and thats not going anywhere.

[immajackuup]

244 is the correct torque for crank bolt not 300.

[mrsleeve]

Just a fyi. Tq wrenches are supposed to used in the middle 60% of /their scale if your using it at the upper and lower limits. They are not as reliable.

That said its not going to make a flying shit in this instance. Either do the math like above if your that worried about it. Or just tq to your max 250 and put another 3/16th-1/4 turn on. It you will be just fine.

[Adrian_Visser]

It aint coming loose.

But if you want to be safe and dont have a a wrench that goes high enough.

Take a piece of pipe that fits over the torque wrench and do some math

Wrench setting = desired torque x wrench length / (wrench length + extension)

(length is measured from drive centerline to handle centerline)

Since we have a pipe over the wrench and made it longer...we can make our own handle centerline

Heres an example

Wrench setting = 300 x (lets say it was originally 18") / (18 + (lets add 4", the length added will be measured from the original handle centerline to where your new handle centerline is going to be...so mark it on the pipe and now thats your handle centerline)

=245.5

So if we set the wrench to 245.5 and hold the pipe on the new centerline which we marked...we should be very close to 300 ft/lbs

I wouldnt do this for precise items, but in this case i think it will work just fine.

Hope that helps!

Just an FYI crank bolt on my Dodge 440 motor torque specs are 135 ft/lbs and thats not going anywhere.

That's a nice interpretation of some math but it is unfortunately wrong.

All you are changing is how much force you are inputting with your hand, the torque bar in the wrench isn't changing it's position at all so the force applied to it remains the same. If you want to change the torque applied to the fastener you need to increase the instance between the wrench and the fastener not the handle. There are special sockets called torque adapters for other applications like that usually due to space constraints though.

EDIT: This sites explains it better than I can: http://www.specialpatrolgroup.co.uk/...ue/torque.html

[FLG]

Well sure as hell sounded good. But I guess that's what happens when you write a post at 4am

Deleted it all to avoid confusion

Carry on.



Sent from my Galaxy Nexus using Tapatalk 2

[Adrian_Visser]

Just a fyi. Tq wrenches are supposed to used in the middle 60% of /their scale if your using it at the upper and lower limits. They are not as reliable.

That said its not going to make a flying shit in this instance. Either do the math like above if your that worried about it. Or just tq to your max 250 and put another 3/16th-1/4 turn on. It you will be just fine.

True, however I tested my 20-100' lb 3/8" dr. snap on wrench the other day because I dropped it off a ladder (idiot) and it tested within 1' lb at the top and bottom of its range.

[slammin.e28]

DO NOT BUY THE CRAFTSMAN! I had 2 of the craftsman torque wrenches and neither worked. I set them at all different torques and they never gave, just acted like a regular socket wrench.

If you want to go cheap and decent, I had luck with a Kobalt wrench from Lowes. Has if for a couple years now and it hasn't failed me yet. I bought it with the money I got back from sears when I returned the craftsman one and had $20 left over.

Lol....my Kobalt one fell apart in my hands a couple weeks ago. Literally, came the fuck apart.

I went and got a Craftsman one. Love it.

[M-technik-3]

Craftsman tools are made in China or Taiwan ROC. Most USA Craftsman tool line has been on clearance. Browse your local Sears if you need inventory.

[Adrian_Visser]

In the US too now? That blows, the Canadian craftsmen has been China junk for a while now but USA stuff was still made in USA, is this happening recently?

[valleymotorwerks]

what 300 foot pound torque wrench do yall recommend for under 300buck??

FLG there's a torque spec for a reason..I cranked mine on with an impact and it still came loose. Cruising to see how it ran, came loose in a few blocks.

This one... Snap On over $300 bucks but tools should never be skimped on.

[M-technik-3]

In the US too now? That blows, the Canadian craftsmen has been China junk for a while now but USA stuff was still made in USA, is this happening recently?

They started putting them on the shelves last month. No Made in USA stamp on them anymore nor the Guaranteed For Life statement anymore either.

[Kershaw]

FLG there's a torque spec for a reason..I cranked mine on with an impact and it still came loose. Cruising to see how it ran, came loose in a few blocks.

maybe you were off a zero. i've gone to 250lbs and then a bit of a turn more and never had a problem. probably because the torque spec is 244 and i probably put it past that. you need to stop using an electric drill. :rofl:

craftsman has a "Made in the USA" line. they are definitely nicer, and pricier.

[M-technik-3]

craftsman has a "Made in the USA" line. they are definitely nicer, and pricier.

Not anymore.

http://madeinusanews.com/2012/03/29/sears-avoids-class-action-over-made-in-usa-claim/

Danaher the company who makes Craftsman mechanics tools has been slowly outsourcing the Craftsman line to China and Taiwan for over two years.

It says made in China or Taiwan now in small print on the back of the packaging.

I just came back from Sears bought about 250 bucks of loose stuff for $45.

[immajackuup]

Not anymore.

http://madeinusanews.com/2012/03/29/sears-avoids-class-action-over-made-in-usa-claim/

Danaher the company who makes Craftsman mechanics tools has been slowly outsourcing the Craftsman line to China and Taiwan for over two years.

It says made in China or Taiwan now in small print on the back of the packaging.

I just came back from Sears bought about 250 bucks of loose stuff for $45.

so as snap on,their stuff are starting to be made by china.

[MR 325]

yes,thinking of craftsman because I do have 20-150 pound version which is decent.

what about this snap on cdi??
http://www.amazon.com/gp/product/B00...d_i=B002LA19P2

Great deal on that SnapOn!

DO NOT BUY THE CRAFTSMAN! I had 2 of the craftsman torque wrenches and neither worked. I set them at all different torques and they never gave, just acted like a regular socket wrench.

If you want to go cheap and decent, I had luck with a Kobalt wrench from Lowes. Has if for a couple years now and it hasn't failed me yet. I bought it with the money I got back from sears when I returned the craftsman one and had $20 left over.

You say Craftsman sucks but you recommend Kobalt...

The Craftsman torque wrenches are GREAT for the price and have a lifetime warranty.

FLG there's a torque spec for a reason..I cranked mine on with an impact and it still came loose. Cruising to see how it ran, came loose in a few blocks.

This one... Snap On over $300 bucks but tools should never be skimped on.

Mine was tightened with a 1/2" IR gun and has not come loose. Sees 7k every time I drive it.