leak from exhaust manifold

[savage1987]

After installing extractors you need to go over all the baolts about a week later and tighten them all up. The extractors expand and contract and then 'settle' so do the bolts, nipping them up a week later when the engine is cold usually prevents them from coming loose again.

That's probably the bit I tend to miss out on to be honest, cheers

OP, do this and you should have no more problems

 

[crazy.vr]

I have replaced about 6 motors ranging from the V6 to the V8's and never used that loctite on the bolts. I use anti-seize on those bolts or any exhaust bolts and do the bolts up to around the specified torque. I don't know why people are having all these bolts come loose. Looks like the installer doing something wrong.