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Discussion in 'Engine Topic' started by Justin Berke, Jan 12, 2019 at 12:26 AM.
Anyone know any tricks to un-stick stuck on exhaust manifolds?
Btw yes the bolts are off
Cast iron exhaust manifolds on iron heads? If you have all 6 bolts off per side, give them a couple good smacks with a heavy dead blow hammer and follow up with the pry bar treatment. Odd though, if they were installed with factory gaskets, they usually come right off.
^+1 has worked for me in the past.
A lot of these manifolds were put on at the factory with no gaskets, get rusted into the head. Give a good soaking first with loosener, then the above beat and pry.
I still don't ever use gaskets on mine and the manifolds have been off several times.
Do the same thing I do with stuck bolts, heat the area around the head and manifold where they meet then melt wax into it, hit it with a dead blow hammer and it should break free. I cannot honestly say I have ever had a manifold that would not come off with out the bolts, that's a new one on me.
Maybe someone welded it to the head.
I sure hope not