Use of Cupper Tapes in BB/LooseCrank Problem
I know Square Loose Crank is discussed very often here. I have searched and read some of the posts. (And they are helpful might I add?) I understand now the left crank tend to get loose often. I regret I didn't check the crank bolts more often. For that matter, it was stupid of me to not own a crank wrench till ... yesterday. Amazing I didn't have this problem for 20 some years of biking life.
Anyways, right now I am having problem finding dealers who will sell me only left side crank. I can get one used, but it defeats the purpose right? Used Square Cranks is likely to be misshaped right?
I was thinking about replacing the entire system with hallow axial system, but it will set me back 25,000Yen (or approx. 250 USD). So I thought if I were able to fill in the deformation or irregular cavities, cranks won't get loose as easily.
I used to be an electrial engineer and I have seen cupper tapes which can be used for repairing circuit boards or build one. These cupper tapes are real cupper sheet with serious adhesives. I am thinking about taping these tightly to the BB axle and smush it in. (after cleaning of course) Being pretty pure cupper and soft, the cupper tape will deform and fit into the cavities. This came from seeing cupper bushing.
Do you think this is a proper temporary solution (~6 months with periodic monitoring)?
P.S. Is ISIS or Octalink better?