Pinning The Harmonic Balancer?
#1
Join Date: Aug 2008
Location: Nosebleed Country Colorado
Posts: 42
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#2
#3
Grade 8 bolts are strong enough to be sure but with this hardness comes the fact that in high vibration applications they are also brittle. The bolts would provide the gripping strength to hold everything together and the pins would prevent the vibration and rotational forces from snapping the bolts.
Grade 8's are good for certain uses, stronger isn't always better. Since I'm a trailer guy the best example I can think of is trailer hitches. They never come with grade 8's, and they should never be used. With the pulling forces moving the metal parts back and forth against each other grade 8's tend to either shatter or vibrate loose after time. In this case grade 5 bolts work better because they flex with the parts and keep everything tight.
Grade 8's are good for certain uses, stronger isn't always better. Since I'm a trailer guy the best example I can think of is trailer hitches. They never come with grade 8's, and they should never be used. With the pulling forces moving the metal parts back and forth against each other grade 8's tend to either shatter or vibrate loose after time. In this case grade 5 bolts work better because they flex with the parts and keep everything tight.
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#4
#5
Grade 8 bolts are strong enough to be sure but with this hardness comes the fact that in high vibration applications they are also brittle. The bolts would provide the gripping strength to hold everything together and the pins would prevent the vibration and rotational forces from snapping the bolts.
Grade 8's are good for certain uses, stronger isn't always better. Since I'm a trailer guy the best example I can think of is trailer hitches. They never come with grade 8's, and they should never be used. With the pulling forces moving the metal parts back and forth against each other grade 8's tend to either shatter or vibrate loose after time. In this case grade 5 bolts work better because they flex with the parts and keep everything tight.
Grade 8's are good for certain uses, stronger isn't always better. Since I'm a trailer guy the best example I can think of is trailer hitches. They never come with grade 8's, and they should never be used. With the pulling forces moving the metal parts back and forth against each other grade 8's tend to either shatter or vibrate loose after time. In this case grade 5 bolts work better because they flex with the parts and keep everything tight.
#6
Join Date: Aug 2008
Location: Nosebleed Country Colorado
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#8