irishQ

hi - replacing cat back and hangers, took off bracket and having heck of a time getting bolts out. Soaking with blaster and while I wait thought i would ask if the nuts are welded to brackets or
just rusted to mine. see pic

thanks

rxtasy3

iTrader: (2)

yes

Banzai

iTrader: (13)

Yes, the nuts are fixed to the brackets, but the bolts should thread out.

mazdaverx713b

iTrader: (91)

The nuts will have to be heated carefully to avoid melting the exhaust hangers. They're easy to melt. The heated nut will expand, and in doing do will make the bolt easier to remove when using hand tools.

The alternative is using a 3/8 air impact with a 12mm socket and each bolt should come out quickly.

midnight mechanic

WD-40 Works better than PB Blaster on rusted nuts.

AFT + acetone is supposed to work best