Rebuilding a crushed MS 260 Pro

It was a long friendly conversation.

 

Just curious as to why you would put muriatic acid on a cylinder you're going to scrap?

 

Sorry, my writing skills leave a lot to be desired. What I meant to say was you may not want to break down and use acid unless there is no other way of saving the cylinder. That way if you do mess up and leave the acid on too long and damage the nikasel coating, you don't feel as bad if the cylinder has to be tossed.

There are a lot of guys who have great success using acid. It loosens up the aluminum transfer from the piston to a point where it can be wiped away with a cloth. But some people have been known to leave it on a little too long and the nikasel coating is damaged. It's best to apply it in stages, instead of trying to do it all at once. In other words, apply the acid, let it sit for a few minutes and them wipe it away. If the results were poor, the next application leave it on for a few more minutes.

Probably the safest way would be to get most of the transfer off with acid, then insert the sanding drum/scotchbrite pad to finish the job up.

These methods really do work, but it can be time consuming depending on the amount of transfer. But it's well worth it considering the cost of an OEM cylinder.

 

Yeah. I stopped doing acid when I was a teenager.