Stihl 034 AV

[Sawyer94]

Well I won't be using muriatic acid again anytime soon. I attempted to remove the remaining hard to get spots and it resulted in a big crack below the intake port. Not sure if this was my doing or if maybe the jug was doomed to begin with. All I know is it wasn't that way before I put the acid inside so I'm assuming it was my fault. Anyways, looks like I'll definitely be replacing the cylinder after all.

 

[Bigmac]

Well I won't be using muriatic acid again anytime soon. I attempted to remove the remaining hard to get spots and it resulted in a big crack below the intake port. Not sure if this was my doing or if maybe the jug was doomed to begin with. All I know is it wasn't that way before I put the acid inside so I'm assuming it was my fault. Anyways, looks like I'll definitely be replacing the cylinder after all.

Like a crack in the plating or all the way through the wall?

 

[MustangMike]

Sorry to hear about your cylinder.

Some people know how to use the acid successfully, and I have watched them do it, but I just sand, it is safer.

 

[Sawyer94]

Like a crack in the plating or all the way through the wall?

I'll have to take some pictures when I get back home but its like a crack out lining around the intake port.

 

[Sawyer94]

Sorry to hear about your cylinder.

Some people know how to use the acid successfully, and I have watched them do it, but I just sand, it is safer.

Thanks,

And yeah it was definitely a learning experience. I know I won't be doing that again anytime soon. I'm wondering if maybe I used to strong of an acid? But the cylinder was fine before the acid, it would have ran no problem, not anymore.

 

[MustangMike]

They don't leave the acid on long, put it on then neutralize it, or it will find the tiniest imperfection.

 

[Bigmac]

That’s a bummer! I use acid on some cylinders, I build a dam with grease to keep the acid out of places I don’t want it! It works well but you have to stay on top of it!

 

[drf256]

Thanks,

And yeah it was definitely a learning experience. I know I won't be doing that again anytime soon. I'm wondering if maybe I used to strong of an acid? But the cylinder was fine before the acid, it would have ran no problem, not anymore.

I’ve never heard of acid cracking plating. Crack was likely there before and had,some polished transfer in it.