|
Over torque / Under torque
Hi all,
I have two torque wrenches, one which has a much higher increment range than the other. When I first torqued my Harmonic Balancer down to 120 pounds I used the lower increment wrench. Then I loosened it up to do something else and when I torqued it down again I used the higher increment wrench. When I used the higher increment wrench it seemed like it took a lot more force to reach 120 pounds. In fact, I don't believe I actually made it to 120. When I did it with the lower increment wrench I did get it to 120 with ease. I'm afraid I have over torqued the Harmonic Balancer Bolt (to the crank). My question is what are the ramifications of over torquing a bolt or under torquing a bolt. I'm guessing it's better to under torque than over torque. Thanks in advance for any comments or suggestions, Bill |
Re: Over torque / Under torque
Hey, you're right. One is in Inch Pounds and the other is in Foot Pounds.
When do you use the Inch Pounds wrench? I believe I used the Foot Pounds wrench for all my torquing. This includes the Intake/Exhaust Manifold, The valve bridge, and the Harmonic Balancer. Thanks in advance, Bill "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:LTT7b.48534$Qy4.5359@fed1read05... > Are you sure that the smaller torque wrench isn't calibrated in inch-lbs and > not ft-lbs? > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "William Oliveri" <wuji@bigvalley.net> wrote in message > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > Hi all, > > > > I have two torque wrenches, one which has a much higher increment range > > than the other. When I first torqued my Harmonic Balancer down to 120 > > pounds I used the lower increment wrench. Then I loosened it up to do > > something else and when I torqued it down again I used the higher > increment > > wrench. When I used the higher increment wrench it seemed like it took a > > lot more force to reach 120 pounds. In fact, I don't believe I actually > > made it to 120. When I did it with the lower increment wrench I did get > it > > to 120 with ease. > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the crank). > > My question is what are the ramifications of over torquing a bolt or under > > torquing a bolt. I'm guessing it's better to under torque than over > torque. > > > > Thanks in advance for any comments or suggestions, > > > > Bill > > > > > > > > |
Re: Over torque / Under torque
Hey, you're right. One is in Inch Pounds and the other is in Foot Pounds.
When do you use the Inch Pounds wrench? I believe I used the Foot Pounds wrench for all my torquing. This includes the Intake/Exhaust Manifold, The valve bridge, and the Harmonic Balancer. Thanks in advance, Bill "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:LTT7b.48534$Qy4.5359@fed1read05... > Are you sure that the smaller torque wrench isn't calibrated in inch-lbs and > not ft-lbs? > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "William Oliveri" <wuji@bigvalley.net> wrote in message > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > Hi all, > > > > I have two torque wrenches, one which has a much higher increment range > > than the other. When I first torqued my Harmonic Balancer down to 120 > > pounds I used the lower increment wrench. Then I loosened it up to do > > something else and when I torqued it down again I used the higher > increment > > wrench. When I used the higher increment wrench it seemed like it took a > > lot more force to reach 120 pounds. In fact, I don't believe I actually > > made it to 120. When I did it with the lower increment wrench I did get > it > > to 120 with ease. > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the crank). > > My question is what are the ramifications of over torquing a bolt or under > > torquing a bolt. I'm guessing it's better to under torque than over > torque. > > > > Thanks in advance for any comments or suggestions, > > > > Bill > > > > > > > > |
Re: Over torque / Under torque
"William Oliveri" <wuji@bigvalley.net> wrote in message news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > Hey, you're right. One is in Inch Pounds and the other is in Foot Pounds. > > When do you use the Inch Pounds wrench? > > I believe I used the Foot Pounds wrench for all my torquing. This includes > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic Balancer. Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much smaller hardware that can't take a lot of torque yet they must be tightened evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs = 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is anything tricky about it. :) Jerry > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > news:LTT7b.48534$Qy4.5359@fed1read05... > > Are you sure that the smaller torque wrench isn't calibrated in inch-lbs > and > > not ft-lbs? > > > > Jerry > > -- > > Jerry Bransford > > To email, remove 'me' from my email address > > KC6TAY, PP-ASEL > > See the Geezer Jeep at > > http://members.cox.net/jerrypb/ > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > Hi all, > > > > > > I have two torque wrenches, one which has a much higher increment > range > > > than the other. When I first torqued my Harmonic Balancer down to 120 > > > pounds I used the lower increment wrench. Then I loosened it up to do > > > something else and when I torqued it down again I used the higher > > increment > > > wrench. When I used the higher increment wrench it seemed like it took > a > > > lot more force to reach 120 pounds. In fact, I don't believe I actually > > > made it to 120. When I did it with the lower increment wrench I did get > > it > > > to 120 with ease. > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > crank). > > > My question is what are the ramifications of over torquing a bolt or > under > > > torquing a bolt. I'm guessing it's better to under torque than over > > torque. > > > > > > Thanks in advance for any comments or suggestions, > > > > > > Bill > > > > > > > > > > > > > > > |
Re: Over torque / Under torque
"William Oliveri" <wuji@bigvalley.net> wrote in message news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > Hey, you're right. One is in Inch Pounds and the other is in Foot Pounds. > > When do you use the Inch Pounds wrench? > > I believe I used the Foot Pounds wrench for all my torquing. This includes > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic Balancer. Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much smaller hardware that can't take a lot of torque yet they must be tightened evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs = 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is anything tricky about it. :) Jerry > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > news:LTT7b.48534$Qy4.5359@fed1read05... > > Are you sure that the smaller torque wrench isn't calibrated in inch-lbs > and > > not ft-lbs? > > > > Jerry > > -- > > Jerry Bransford > > To email, remove 'me' from my email address > > KC6TAY, PP-ASEL > > See the Geezer Jeep at > > http://members.cox.net/jerrypb/ > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > Hi all, > > > > > > I have two torque wrenches, one which has a much higher increment > range > > > than the other. When I first torqued my Harmonic Balancer down to 120 > > > pounds I used the lower increment wrench. Then I loosened it up to do > > > something else and when I torqued it down again I used the higher > > increment > > > wrench. When I used the higher increment wrench it seemed like it took > a > > > lot more force to reach 120 pounds. In fact, I don't believe I actually > > > made it to 120. When I did it with the lower increment wrench I did get > > it > > > to 120 with ease. > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > crank). > > > My question is what are the ramifications of over torquing a bolt or > under > > > torquing a bolt. I'm guessing it's better to under torque than over > > torque. > > > > > > Thanks in advance for any comments or suggestions, > > > > > > Bill > > > > > > > > > > > > > > > |
Re: Over torque / Under torque P.S.
I don't even own an inch-lbs. torque wrench, both my 3/8" and 1/2" torque
wrenches are both calibrated in ft-lbs. I have worked on nothing in a Jeep that needs to be tightened in inch-lbs. increments. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:G6U7b.48536$Qy4.47430@fed1read05... > > "William Oliveri" <wuji@bigvalley.net> wrote in message > news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > > Hey, you're right. One is in Inch Pounds and the other is in Foot Pounds. > > > > When do you use the Inch Pounds wrench? > > > > I believe I used the Foot Pounds wrench for all my torquing. This > includes > > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic Balancer. > > Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much > smaller hardware that can't take a lot of torque yet they must be tightened > evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs = > 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is > anything tricky about it. :) > > Jerry > > > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > > news:LTT7b.48534$Qy4.5359@fed1read05... > > > Are you sure that the smaller torque wrench isn't calibrated in inch-lbs > > and > > > not ft-lbs? > > > > > > Jerry > > > -- > > > Jerry Bransford > > > To email, remove 'me' from my email address > > > KC6TAY, PP-ASEL > > > See the Geezer Jeep at > > > http://members.cox.net/jerrypb/ > > > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > > Hi all, > > > > > > > > I have two torque wrenches, one which has a much higher increment > > range > > > > than the other. When I first torqued my Harmonic Balancer down to 120 > > > > pounds I used the lower increment wrench. Then I loosened it up to do > > > > something else and when I torqued it down again I used the higher > > > increment > > > > wrench. When I used the higher increment wrench it seemed like it > took > > a > > > > lot more force to reach 120 pounds. In fact, I don't believe I > actually > > > > made it to 120. When I did it with the lower increment wrench I did > get > > > it > > > > to 120 with ease. > > > > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > > crank). > > > > My question is what are the ramifications of over torquing a bolt or > > under > > > > torquing a bolt. I'm guessing it's better to under torque than over > > > torque. > > > > > > > > Thanks in advance for any comments or suggestions, > > > > > > > > Bill > > > > > > > > > > > > > > > > > > > > > > > > |
Re: Over torque / Under torque P.S.
I don't even own an inch-lbs. torque wrench, both my 3/8" and 1/2" torque
wrenches are both calibrated in ft-lbs. I have worked on nothing in a Jeep that needs to be tightened in inch-lbs. increments. Jerry -- Jerry Bransford To email, remove 'me' from my email address KC6TAY, PP-ASEL See the Geezer Jeep at http://members.cox.net/jerrypb/ "Jerry Bransford" <jerrypb@mecox.net> wrote in message news:G6U7b.48536$Qy4.47430@fed1read05... > > "William Oliveri" <wuji@bigvalley.net> wrote in message > news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > > Hey, you're right. One is in Inch Pounds and the other is in Foot Pounds. > > > > When do you use the Inch Pounds wrench? > > > > I believe I used the Foot Pounds wrench for all my torquing. This > includes > > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic Balancer. > > Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much > smaller hardware that can't take a lot of torque yet they must be tightened > evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs = > 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is > anything tricky about it. :) > > Jerry > > > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > > news:LTT7b.48534$Qy4.5359@fed1read05... > > > Are you sure that the smaller torque wrench isn't calibrated in inch-lbs > > and > > > not ft-lbs? > > > > > > Jerry > > > -- > > > Jerry Bransford > > > To email, remove 'me' from my email address > > > KC6TAY, PP-ASEL > > > See the Geezer Jeep at > > > http://members.cox.net/jerrypb/ > > > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > > Hi all, > > > > > > > > I have two torque wrenches, one which has a much higher increment > > range > > > > than the other. When I first torqued my Harmonic Balancer down to 120 > > > > pounds I used the lower increment wrench. Then I loosened it up to do > > > > something else and when I torqued it down again I used the higher > > > increment > > > > wrench. When I used the higher increment wrench it seemed like it > took > > a > > > > lot more force to reach 120 pounds. In fact, I don't believe I > actually > > > > made it to 120. When I did it with the lower increment wrench I did > get > > > it > > > > to 120 with ease. > > > > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > > crank). > > > > My question is what are the ramifications of over torquing a bolt or > > under > > > > torquing a bolt. I'm guessing it's better to under torque than over > > > torque. > > > > > > > > Thanks in advance for any comments or suggestions, > > > > > > > > Bill > > > > > > > > > > > > > > > > > > > > > > > > |
Re: Over torque / Under torque P.S.
How bout valve cover bolts?
"Jerry Bransford" <jerrypb@mecox.net> wrote in message news:79U7b.48537$Qy4.21829@fed1read05... > I don't even own an inch-lbs. torque wrench, both my 3/8" and 1/2" torque > wrenches are both calibrated in ft-lbs. I have worked on nothing in a Jeep > that needs to be tightened in inch-lbs. increments. > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > news:G6U7b.48536$Qy4.47430@fed1read05... > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > > > Hey, you're right. One is in Inch Pounds and the other is in Foot > Pounds. > > > > > > When do you use the Inch Pounds wrench? > > > > > > I believe I used the Foot Pounds wrench for all my torquing. This > > includes > > > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic > Balancer. > > > > Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much > > smaller hardware that can't take a lot of torque yet they must be > tightened > > evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs > = > > 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is > > anything tricky about it. :) > > > > Jerry > > > > > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > > > news:LTT7b.48534$Qy4.5359@fed1read05... > > > > Are you sure that the smaller torque wrench isn't calibrated in > inch-lbs > > > and > > > > not ft-lbs? > > > > > > > > Jerry > > > > -- > > > > Jerry Bransford > > > > To email, remove 'me' from my email address > > > > KC6TAY, PP-ASEL > > > > See the Geezer Jeep at > > > > http://members.cox.net/jerrypb/ > > > > > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > > > Hi all, > > > > > > > > > > I have two torque wrenches, one which has a much higher increment > > > range > > > > > than the other. When I first torqued my Harmonic Balancer down to > 120 > > > > > pounds I used the lower increment wrench. Then I loosened it up to > do > > > > > something else and when I torqued it down again I used the higher > > > > increment > > > > > wrench. When I used the higher increment wrench it seemed like it > > took > > > a > > > > > lot more force to reach 120 pounds. In fact, I don't believe I > > actually > > > > > made it to 120. When I did it with the lower increment wrench I did > > get > > > > it > > > > > to 120 with ease. > > > > > > > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > > > crank). > > > > > My question is what are the ramifications of over torquing a bolt or > > > under > > > > > torquing a bolt. I'm guessing it's better to under torque than over > > > > torque. > > > > > > > > > > Thanks in advance for any comments or suggestions, > > > > > > > > > > Bill > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
Re: Over torque / Under torque P.S.
How bout valve cover bolts?
"Jerry Bransford" <jerrypb@mecox.net> wrote in message news:79U7b.48537$Qy4.21829@fed1read05... > I don't even own an inch-lbs. torque wrench, both my 3/8" and 1/2" torque > wrenches are both calibrated in ft-lbs. I have worked on nothing in a Jeep > that needs to be tightened in inch-lbs. increments. > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > news:G6U7b.48536$Qy4.47430@fed1read05... > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > > > Hey, you're right. One is in Inch Pounds and the other is in Foot > Pounds. > > > > > > When do you use the Inch Pounds wrench? > > > > > > I believe I used the Foot Pounds wrench for all my torquing. This > > includes > > > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic > Balancer. > > > > Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much > > smaller hardware that can't take a lot of torque yet they must be > tightened > > evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs > = > > 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is > > anything tricky about it. :) > > > > Jerry > > > > > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > > > news:LTT7b.48534$Qy4.5359@fed1read05... > > > > Are you sure that the smaller torque wrench isn't calibrated in > inch-lbs > > > and > > > > not ft-lbs? > > > > > > > > Jerry > > > > -- > > > > Jerry Bransford > > > > To email, remove 'me' from my email address > > > > KC6TAY, PP-ASEL > > > > See the Geezer Jeep at > > > > http://members.cox.net/jerrypb/ > > > > > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > > > Hi all, > > > > > > > > > > I have two torque wrenches, one which has a much higher increment > > > range > > > > > than the other. When I first torqued my Harmonic Balancer down to > 120 > > > > > pounds I used the lower increment wrench. Then I loosened it up to > do > > > > > something else and when I torqued it down again I used the higher > > > > increment > > > > > wrench. When I used the higher increment wrench it seemed like it > > took > > > a > > > > > lot more force to reach 120 pounds. In fact, I don't believe I > > actually > > > > > made it to 120. When I did it with the lower increment wrench I did > > get > > > > it > > > > > to 120 with ease. > > > > > > > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > > > crank). > > > > > My question is what are the ramifications of over torquing a bolt or > > > under > > > > > torquing a bolt. I'm guessing it's better to under torque than over > > > > torque. > > > > > > > > > > Thanks in advance for any comments or suggestions, > > > > > > > > > > Bill > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
Re: Over torque / Under torque P.S.
Only the valve cover bolts...
Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Jerry Bransford wrote: > > I don't even own an inch-lbs. torque wrench, both my 3/8" and 1/2" torque > wrenches are both calibrated in ft-lbs. I have worked on nothing in a Jeep > that needs to be tightened in inch-lbs. increments. > > Jerry > -- > Jerry Bransford > To email, remove 'me' from my email address > KC6TAY, PP-ASEL > See the Geezer Jeep at > http://members.cox.net/jerrypb/ > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > news:G6U7b.48536$Qy4.47430@fed1read05... > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > news:bjp27k$l2mm0$1@ID-193866.news.uni-berlin.de... > > > Hey, you're right. One is in Inch Pounds and the other is in Foot > Pounds. > > > > > > When do you use the Inch Pounds wrench? > > > > > > I believe I used the Foot Pounds wrench for all my torquing. This > > includes > > > the Intake/Exhaust Manifold, The valve bridge, and the Harmonic > Balancer. > > > > Lucky guess eh? :) Well, an inch-lbs. torque wrench is just used for much > > smaller hardware that can't take a lot of torque yet they must be > tightened > > evenly or precisely. Though this may seem like a no-brainer, 144 inch-lbs > = > > 12 ft-lbs... and 12 inch-lbs = 1 ft-lb. Just so no one thinks there is > > anything tricky about it. :) > > > > Jerry > > > > > > "Jerry Bransford" <jerrypb@mecox.net> wrote in message > > > news:LTT7b.48534$Qy4.5359@fed1read05... > > > > Are you sure that the smaller torque wrench isn't calibrated in > inch-lbs > > > and > > > > not ft-lbs? > > > > > > > > Jerry > > > > -- > > > > Jerry Bransford > > > > To email, remove 'me' from my email address > > > > KC6TAY, PP-ASEL > > > > See the Geezer Jeep at > > > > http://members.cox.net/jerrypb/ > > > > > > > > "William Oliveri" <wuji@bigvalley.net> wrote in message > > > > news:bjp1fd$l9ddp$1@ID-193866.news.uni-berlin.de... > > > > > Hi all, > > > > > > > > > > I have two torque wrenches, one which has a much higher increment > > > range > > > > > than the other. When I first torqued my Harmonic Balancer down to > 120 > > > > > pounds I used the lower increment wrench. Then I loosened it up to > do > > > > > something else and when I torqued it down again I used the higher > > > > increment > > > > > wrench. When I used the higher increment wrench it seemed like it > > took > > > a > > > > > lot more force to reach 120 pounds. In fact, I don't believe I > > actually > > > > > made it to 120. When I did it with the lower increment wrench I did > > get > > > > it > > > > > to 120 with ease. > > > > > > > > > > > > > > > I'm afraid I have over torqued the Harmonic Balancer Bolt (to the > > > crank). > > > > > My question is what are the ramifications of over torquing a bolt or > > > under > > > > > torquing a bolt. I'm guessing it's better to under torque than over > > > > torque. > > > > > > > > > > Thanks in advance for any comments or suggestions, > > > > > > > > > > Bill > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
| All times are GMT -4. The time now is 01:09 AM. |
© 2024 MH Sub I, LLC dba Internet Brands