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Old Nov 4, 2021 | 02:56 PM
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Default Torque wrench

Is there a small enough torque wrench to fit into the area where I can check my tightness of the header bolts so I won't over tighten and snap a bolt off ? There must be something out there. I have check all over with no luck.
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Old Nov 4, 2021 | 03:11 PM
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I would think just about any flex head torque wrench would work. You just have to adjust it to the correct angle.
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Old Nov 4, 2021 | 04:15 PM
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how 'bout this ...... 14" in length

https://www.harborfreight.com/38-in-...xoCLfIQAvD_BwE
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Old Nov 4, 2021 | 04:38 PM
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I've always just used a standard sized 1/4 drive inch pounds torque wrench on LS header bolts and yes even on the C5 with no flex head or universals.

Then again I don't have the stupid air system on my car.

For home use I'm a big fan of the inexpensive Performance Tool torque wrenches. You can get them at just about any auto parts store.
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Old Nov 5, 2021 | 05:30 AM
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Is 18 ft lbs.the correct specs ?
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Old Nov 5, 2021 | 11:00 AM
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Originally Posted by ZigZag
Is 18 ft lbs.the correct specs ?
Not certain. I've never torqued my header bolts, and never stripped any threads, or had any come loose. You could convert easily enough. 12 inch lbs.=1ft lb. So, 12×18=216 inch lbs..... Hope this helps
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Old Nov 5, 2021 | 11:05 AM
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I just guess at it with my highly calibrated upper body muscles
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Old Nov 5, 2021 | 12:48 PM
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Originally Posted by Mikado463
how 'bout this ...... 14" in length

https://www.harborfreight.com/38-in-...xoCLfIQAvD_BwE
I bought mine with coupon for $10 each in all 3 sizes

RIP coupons
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Old Nov 5, 2021 | 01:06 PM
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Originally Posted by acroy
I just guess at it with my highly calibrated upper body muscles
😄 😉 I do that too. After working with airplane for so long you get pretty good at the guessing game.
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Old Nov 5, 2021 | 01:10 PM
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Originally Posted by mstromquist
😄 😉 I do that too. After working with airplane for so long you get pretty good at the guessing game.

I do as well but for some reason I have this mental brain block of dealing with **** GM aluminum threads.

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Old Nov 5, 2021 | 01:35 PM
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I have all 3 of the Harbor Frieght cheapest torque wrenches. 1/2” drive in ft. lbs., 3/8” drive in ft. lbs., and 1/4” drive in in. lbs.

The only problem I’ve ever had is with the 1/4” drive in. lbs. one. I was changing out the knock sensors on my truck and when I put the intake bolts back in, it snapped the very first one in the torque sequence. I took it back and got a replacement, but I tested it and I still just don’t trust it.
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Old Nov 5, 2021 | 11:14 PM
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Just use a ratchet and tighten it 1/4 turn before it breaks.
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Old Nov 6, 2021 | 09:37 AM
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Originally Posted by lewislgZ06
I have all 3 of the Harbor Frieght cheapest torque wrenches. 1/2” drive in ft. lbs., 3/8” drive in ft. lbs., and 1/4” drive in in. lbs.

The only problem I’ve ever had is with the 1/4” drive in. lbs. one. I was changing out the knock sensors on my truck and when I put the intake bolts back in, it snapped the very first one in the torque sequence. I took it back and got a replacement, but I tested it and I still just don’t trust it.
I agree with the vast majority of your posts, Larry. But I'd NEVER trust a Harbor Freight torque wrench, without first having it calibrated..... I had my Craftsman calibrated, and it was within 3 ft/lbs@70ft/lb readout (head torque spec with my ARP studs). Just saying.........
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Old Nov 6, 2021 | 10:02 AM
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Originally Posted by grinder11
I agree with the vast majority of your posts, Larry. But I'd NEVER trust a Harbor Freight torque wrench, without first having it calibrated..... I had my Craftsman calibrated, and it was within 3 ft/lbs@70ft/lb readout (head torque spec with my ARP studs). Just saying.........
How old is your Craftsman and when was it last calibrated?
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Old Nov 6, 2021 | 12:51 PM
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Originally Posted by grinder11
I agree with the vast majority of your posts, Larry. But I'd NEVER trust a Harbor Freight torque wrench, without first having it calibrated..... I had my Craftsman calibrated, and it was within 3 ft/lbs@70ft/lb readout (head torque spec with my ARP studs). Just saying.........
I know, I know, and every time I go the cheaper route it bites me in the ***!

I should have listened to the little man inside. “See, you gotta listen to the little man!” Kramer
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Old Nov 6, 2021 | 03:23 PM
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Originally Posted by boydn1
How old is your Craftsman and when was it last calibrated?
Wrench is 10 years old, calibrated when it was about a month old, iirc, lol......
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Old Nov 6, 2021 | 08:20 PM
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never used a torque wrench on header bolts. used common sense. seems to work
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Old Nov 7, 2021 | 05:24 AM
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I have always used a Craftsman 3/8” drive torque wrench - has worked well for me.
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Old Nov 10, 2021 | 03:18 PM
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You need a torque wrench for bearing caps, rod caps, head bolts and inexplicably wheel nuts. Everything else can and should be done by common sense and feel.

Every time I've stripped a bolt or a stud it has been with a torque wrench and bad specs out of a book.
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Old Nov 11, 2021 | 09:37 AM
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Really easy to measure your torque wrench, for years I do this the first week of January each year. I have a 15 lb, 25 lb and 50 lb weights that I had weighed at an engine builders shop years ago and wrote down how many tenths of ounces they were off. 12 " from the pivot point on the wrench I mark a spot and hang the 50 lb weight from the 1/2" and then measure how far off the torque wrench is. My craftsman was 2.6 oz off while my HF was 17.5 oz off last January. that will give you the percentage off the torque wrench is lb-ft.
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