912 ULS Cylinder Head Exhaust Studs
in 912 / 914 Technical Questions
6 years ago
I recently removed my exhaust. When trying to remove the nut on the cylinder head stud, the stud came out. I did not like the condition of the stud or the nut so I am replacing both of them. I referred to the Heavy Maintenance Manual.
In paragraph 3.11.1 (72-00-00) (Cylinder head and exhaust manifold studs), it says to use Loctite 648.
The old stud did not appear to have any or it was so little I cannot see it.
My questions are these:
1). Am I reading the manual correctly and am I suppose to use Loctite 648?
2) If so, how much?
3) I have read that Loctite 648 is a retaining compound but if I every have to remove it again, how difficult is it and what is the best procedure?
Thank you for your help.
Bob
In paragraph 3.11.1 (72-00-00) (Cylinder head and exhaust manifold studs), it says to use Loctite 648.
The old stud did not appear to have any or it was so little I cannot see it.
My questions are these:
1). Am I reading the manual correctly and am I suppose to use Loctite 648?
2) If so, how much?
3) I have read that Loctite 648 is a retaining compound but if I every have to remove it again, how difficult is it and what is the best procedure?
Thank you for your help.
Bob
