Hi kent. Great site!
I have a couple of old motorcycle tanks that have minor dents. I'm looking for advise on how to best remove
them. I have some metal forming experience working in a jewelry/light metals studio at school ie
planishing, dapping, soldering, etc but no longer have access to the plethora of polished hammers, anvils
and spikes that would see to be very usefull for this project. Short of drilling holes around the dent
and pulling it out, the only acces behind the dent is through the gas filler hole. I wondered about
filling the tank with shot or something to provide resistance to hammering (basically raising the dent
from outside like raising a bowl). I have considered cutting out the dented section then straightening
and replacing it but thats a little scarry. The tanks are steel not aluminum.
I would greatly appreciate any advice.
The Tin Man Respondeth:
Well James, I use an interesting, but expensive tool called a Lenco machine. It spot welds a slide hammer
disc to the dent, the slide hammer then yanks a bit, the disc is twisted to release it from the tank,
and a new pull is made nearby. I have "walked" much damage out of double-walled construction and tanks
with it. $2500.