torque wrenches - Team Camaro Tech
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post #1 of 7 (permalink) Old Dec 27th, 99, 07:19 AM Thread Starter
Join Date: Dec 1999
Location: arnold, mo, us
Posts: 26

I don't know if its me, my torque wrench or what. I have a new craftsman click type torque wrench. My book says to tighten the carb bolts down to 12 ft lbs. Well I do and they are so loose i can put a wrench on them and still tighten em down easily. I set it at 30 ft lbs and a week later they had loosened up. It wasn't until I tightened them to about 40 ft lbs that they feel good. My concern is that when I go to tighten down some head bolts the torque won't be adequate. Can you recommend a good torque wrench or something else?
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post #2 of 7 (permalink) Old Dec 27th, 99, 12:04 PM
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Location: Racine WI
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Are the bolts backing out or is the gasket compressing?If the bolts are backing out maybe some locktight in the threads would help.40 ft.lbs. just seems like alot,almost to much if it's an aluminum intake.Can you borrow a friends wrench and torque them,and see if another wrench tightens it more?Hey it's craftsman,you can always return it and get another.Thats all I could think of.
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post #3 of 7 (permalink) Old Dec 27th, 99, 12:34 PM Thread Starter
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Your right 67drake...never thought of that .....Thanks
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post #4 of 7 (permalink) Old Dec 27th, 99, 12:49 PM
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Location: Talking Rock, Ga. U.S.A.
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I went that route with a torque wrench I received for my B-day several years ago. After having the replacements(yes , more than one) break, I carried it back for a refund.It had to get ugly, with the store manager coming down to settle it, but I got the money back.Have been looking for a high quality one ever since.I guess I'll just get a bender bar type, and a cheap clicker for a backup.All total I had 4 different replacements and the original one from the above mentioned store.I don't plan on getting another one from them.

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post #5 of 7 (permalink) Old Dec 27th, 99, 03:18 PM
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,278

Most torque wrenches are not very accurate at the extreme ends of their range. For instance, a 0-200 lb ft wrench will not be accurate at 20 lb ft. If you look at the accuracy ratings, even the best ones are usually plus or minus 5% That is 10lbs on a 200 lb wrench. Actually, at 12 lb ft I would be using an lb in torque wrench set at 144 lb inch.
Either way, if the carb bolts are coming loose at 40lbs...something is wrong. I would do as drake said and borrow another wrench to compare it to.
Hope this helps,

Bill Koustenis
Advanced Automotive Machine
Waldorf Md

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post #6 of 7 (permalink) Old Dec 28th, 99, 05:07 PM
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Location: hillsville va.
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i would suggest a snap on or a mac i use them both they are expensive but good.
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post #7 of 7 (permalink) Old Dec 31st, 99, 08:37 AM
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Kurt S
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Join Date: Jan 1999
Location: Ann Arbor, MI
Posts: 6,050

There are two issues here:
You need a small torque wrench for the lower torque items.
The torque spec is low on the carb. The gaskets don't need tightened that much. Use some Loctite if they are backing out. Also remember the gasket compresses.
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