Does any body have any recommendations for thread preparation for installing a Shimano BB-UN72 bottom bracket. I have an aluminum BB shell in a carbon fiber frame. The non-drive side plastic ring tends to come loose. I torque it to the Shimano spec of about 30-40 newton-meters. I have prepared the threads with Finish Line grease. Is Locktite a good idea. If so, what grade. Anybody have an suggestions?
Try some teflon tape. This has always worked for me, and to others I've recommended to. Just a couple of wraps on the threads does it, and you can actually remove the BB later w/o hassle.
-pete
"Aero" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
Does any body have any recommendations for thread preparation for
installing
Quoted message said:
a Shimano BB-UN72 bottom bracket. I have an aluminum BB shell in a carbon fiber frame. The non-drive side plastic ring tends to come loose. I
torque
Quoted message said:
it to the Shimano spec of about 30-40 newton-meters. I have prepared the threads with Finish Line grease. Is Locktite a good idea. If so, what grade. Anybody have an suggestions?
aero-<< Does any body have any recommendations for thread preparation for installing a Shimano BB-UN72 bottom bracket. << The non-drive side plastic ring tends to come loose.
On a UN-72, the left side ring or cup is aluminum.
What frameset? Perhaps a face and chase of the shell is a good idea.
Also tap off the right cup and grease inside there, along with the left cup.
Decent grease with a prepped frameset should keep all the cups tight-do not use Loctite.
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