03-08-2024, 05:41 PM
No.1 thing is drench them all in Plus Gas, and leave at least 24 hours.
Locking two plain nuts together will give you something to undo with a spanner, and will at least get out the easier ones.
I'm always a little anxious applying too much heat locally to a casting, but if applied with care heat can get things moving.
Mole grips or similar may help, if locked on tight.
I have in my tool kit a couple of eccentric jobbies which use a 'self-servo' effect to tighten onto the stud as you apply the spanner. They exert more of a grip than moles do.
Once you get into the heavier applications of torque, be prepared for several sheared studs, which you will probably do best to drill out, but this needs doing with considerable care otherwise they'll go off centre. Beware of hardened steel stud extractors which can snap off and make matters worse.
Locking two plain nuts together will give you something to undo with a spanner, and will at least get out the easier ones.
I'm always a little anxious applying too much heat locally to a casting, but if applied with care heat can get things moving.
Mole grips or similar may help, if locked on tight.
I have in my tool kit a couple of eccentric jobbies which use a 'self-servo' effect to tighten onto the stud as you apply the spanner. They exert more of a grip than moles do.
Once you get into the heavier applications of torque, be prepared for several sheared studs, which you will probably do best to drill out, but this needs doing with considerable care otherwise they'll go off centre. Beware of hardened steel stud extractors which can snap off and make matters worse.