exhaust studs and oil cooler removal

[b1k3rdude]

Well considering the engine looks very clean its possible the studs aren't that bad.

The option suggested by Screwdriver (the cheapest and that I have also done) Buy some qaulity penetrating fluid (- Fuchs) and spray it in the stud/engine junction over night.

• Then get two nuts on the stud and tighten them against each other.
  
• Then pop a ring spanner on the back nut and rock the studs back and forth till it starts to move.
  
• If its still stupid tight apply more penetrating fluid and keep rocking back and forth
  
• And its its still tight get a butain blow-torch and heat the stud (put some thick gloves on as the spanner will get hot) and work the stud till its comes out.
  

The trick is to be gentle and patient.

Regarding the oil cooler, as long as the corrosion isn't to deap first take a wire brush to it and clean all the corrosion off. And someone will confirm this for me, but I believe the cooler is made of aluminium alloy, so you can't use Hammerite on it. Instead you will need to use an aluminium/alloy etch primer and then some normal silver or black cellulose paint.