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| | | Joined: Nov 2008 Posts: 145 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2008 Posts: 145 | I'm getting ready to mount the motor on the frame and attach it to the bell housing. I can't find any torque specs for the bell housing to the motor bolts. anyone have a spec?
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| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | davidn,
Those bolts shouldn't need any real attention to detail, just tighten the heck out of them.
Stuart | | | | | Joined: Feb 2004 Posts: 29,771 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,771 | Like my first boss used to say, "Give 'em a good grunt!" Generally, if a torque spec isn't handy, I take up the slack so the parts are clamped together, then advance the bolt head about one flat. (1/6 turn) That seems to work well, no matter what diameter the bolt is.
Jerry
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| | | | | Joined: Jun 2005 Posts: 388 Shop Shark | | Shop Shark Joined: Jun 2005 Posts: 388 | David, The Shop Manual calls for 45-55 ft-lbf for the 1954 engine. The rotation method is a good guideline except for bolts with a very short grip length, like a flywheel bolt. The bolt stretch and preload can very sensitive to the rotation for a very short bolt. Hoyt | | | | | Joined: Nov 2008 Posts: 145 Wrench Fetcher | | Wrench Fetcher Joined: Nov 2008 Posts: 145 |
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| | | | | Joined: Jul 2004 Posts: 5,708 'Bolter | | 'Bolter Joined: Jul 2004 Posts: 5,708 | davidn,
Your question has been answered, so this is a moot point. Every fastener has a torque specification that is based on its size, thread configuration and tensile strength. If you are given this info, you can come up with a torque spec.
The thing to note is that many bolted components aren't sensitive to torque values, you just stick them together, oink the bolt down and you are good to go. The cylinder head is sensitive to not only torque but also torque sequence. The bellhousing to engine connection isn't particularly sensitive to torque, hence the suggestion to "Give 'em a good grunt!".
If you have a torque spec, a torque wrench and want to take the time, by all means do it. As you become more familiar with the machine, you will learn what needs this drill and what doesn't. That's how I see it.
Stuart | | |
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