bellhousing torque?
12-03-2006, 02:28 PM
#1
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bellhousing torque? wondering if anyone knew what the trans to bellhousing torque is. been looking on ls1howto and found the rest but not sure what it is for that
12-04-2006, 10:05 AM
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He doesn't have anything to worry about with a 3ft extension, lol!
Using a 300lb torque wrench going through a 3 ft 3/8" drive is probably around 30 ft lbs in the end...
Using a 300lb torque wrench going through a 3 ft 3/8" drive is probably around 30 ft lbs in the end...
Originally Posted by MeentSS02
I'd say a big no on the impact wrench, unless you are using it to loosen only. Impact wrench + aluminum threads = stripped holes.
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12-04-2006, 01:14 PM
#8
Originally Posted by Rodrigues
He doesn't have anything to worry about with a 3ft extension, lol!
Using a 300lb torque wrench going through a 3 ft 3/8" drive is probably around 30 ft lbs in the end...
Using a 300lb torque wrench going through a 3 ft 3/8" drive is probably around 30 ft lbs in the end...
12-04-2006, 06:25 PM
#9
Originally Posted by Rodrigues
He doesn't have anything to worry about with a 3ft extension, lol!
Using a 300lb torque wrench going through a 3 ft 3/8" drive is probably around 30 ft lbs in the end...
Using a 300lb torque wrench going through a 3 ft 3/8" drive is probably around 30 ft lbs in the end...
12-04-2006, 07:57 PM
#10
Originally Posted by Ferocity02
Hahaha... that gave me a good laugh. It will still be 300 ft-lbs at the end.
Tights tight, too tights broke.
You can use an impact, and a light trigger finger. Or do them by, hand. I do both. Zip them in with the impact, (after HAND starting them) and hand snug them for final torquing.
After you work on cars for a couple years, you get a pretty decent idea of what NOT to do.
Torquing bolts in general is a great habit. Especially when doing stuff like this as a hobby.
Working on cars every day however, my arm is pretty dead on the money. As mentioned above, aluminum threads, and a heavy trigger finger on an impact don't mix.
12-04-2006, 10:47 PM
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If I'm reading it right, the helms manual refers to the bellhousing as the "clutch housing" and states to tighten the clutch housing to the transmission case at 37 lb ft. The bellhousing/clutch housing bolts are also listed at 37 lb ft. The haynes manual however states to tighten the "transmission-to-bellhousing bolts" to 26 lb ft. These are both on the MM6. I'm inclined to agree with the helms since it's more "authoritative."
Last edited by MrEddie; 12-05-2006 at 01:52 PM.
12-05-2006, 12:12 AM
#12
Originally Posted by BAD *** TA WS6
No it won't, but I couldn't do the math out for you if my life depended on it.
We can consider the impact gun exerting a force of 300 ft-lbs at the end of a 3' cylindrical rod, the extension. This force can be expressed as a moment about the end of the of the extension. Using 3D equilibrium, moments are free vectors, and can be translated to anywhere in space. To maintain equilibrium, there must be a moment somewhere else in the space that "cancels" out the moment created by the impact gun. Thus, we can form a moment at the other end of the extension and it must be equal and opposite, with a magnitude of 300 ft-lbs.
However, if you use a universal drive somewhere in your extension, the angle of the drive will proportionally reduce the torque and the end of the extension. There are also somethings to consider like friction, stress, and distortion, but with 300 ft-lbs and solid 3/8" steel extensions, these are negligible.
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12-05-2006, 06:30 AM
#14
Originally Posted by MrEddie
If I'm reading it right, the helms manual refers to the bellhousing as the "clutch housing" and states to tighten the clutch housing to the transmission case at 37 lb ft. The bellhousing/clutch housing bolts are also listed at 37 lb ft. The haynes manual however states to tighten the "transmission-to-bellhousing bolts" to 26 lb ft. These are both on the MM6. I'm inlinced to agree with the helms since it's more "authoritative."
12-05-2006, 12:38 PM
#15
Originally Posted by Ferocity02
Well I can...
We can consider the impact gun exerting a force of 300 ft-lbs at the end of a 3' cylindrical rod, the extension. This force can be expressed as a moment about the end of the of the extension. Using 3D equilibrium, moments are free vectors, and can be translated to anywhere in space. To maintain equilibrium, there must be a moment somewhere else in the space that "cancels" out the moment created by the impact gun. Thus, we can form a moment at the other end of the extension and it must be equal and opposite, with a magnitude of 300 ft-lbs.
However, if you use a universal drive somewhere in your extension, the angle of the drive will proportionally reduce the torque and the end of the extension. There are also somethings to consider like friction, stress, and distortion, but with 300 ft-lbs and solid 3/8" steel extensions, these are negligible.
We can consider the impact gun exerting a force of 300 ft-lbs at the end of a 3' cylindrical rod, the extension. This force can be expressed as a moment about the end of the of the extension. Using 3D equilibrium, moments are free vectors, and can be translated to anywhere in space. To maintain equilibrium, there must be a moment somewhere else in the space that "cancels" out the moment created by the impact gun. Thus, we can form a moment at the other end of the extension and it must be equal and opposite, with a magnitude of 300 ft-lbs.
However, if you use a universal drive somewhere in your extension, the angle of the drive will proportionally reduce the torque and the end of the extension. There are also somethings to consider like friction, stress, and distortion, but with 300 ft-lbs and solid 3/8" steel extensions, these are negligible.
I can gaurantee you 300 ft./lbs at the gun, is not 300 at the other end with even the extension alone. Again it's also less with universal impact. Period. I'll put money, and some beer on it. I'll enjoy the $$$ and the beer.
12-05-2006, 03:52 PM
#16
At the moment of impact, all of the "play" is taken up throughout the joints, effectively creating a solid extension. I agree, with all other variables the moment at the end won't be 300 ft-lbs, but it will be pretty ******* close, definitely not 30 ft-lbs as someone said.
12-05-2006, 04:21 PM
#17
Originally Posted by Ferocity02
At the moment of impact, all of the "play" is taken up throughout the joints, effectively creating a solid extension. I agree, with all other variables the moment at the end won't be 300 ft-lbs, but it will be pretty ******* close, definitely not 30 ft-lbs as someone said.
I just used an 80 ft. lb torque stick on a wheel (1/2" IR Gun, 17mm torque stick - no socket). Air regulator set at 130 PSI. I retorqued that wheel with a brandy new, 1/2" Snap On Electronic Torque wrench to 95 ft. lbs.
Using the same IR 1/2" gun, with a 2.5' extension, and a deep 17mm socket tried loosening that bitch. Not happening.... That's "700 ft. lbs of torque in reverse direction".
http://www.sjdiscounttools.com/ir2135ti.html
I'll tell you right now, you can get as technical as you want. But there is a pretty big damned difference.
Last edited by BAD ASS TA WS6; 12-05-2006 at 04:29 PM.
