(b) What will help in such cases?
5. (a) If the cylinder is rather oily does this make a difference?
(b) Does the presence of oil aid or retard combustion?
6. (a) What precautions are necessary before carbon burning is attempted?
(b) How is asbestos paper used in carbon burning?
(c) Name a good substitute for asbestos paper when carbon burning.
7. (a) Is there any danger of warping the valves and overheating the cylinder and piston when burning carbon?
(b) What is the effect of carbon burning on aluminum pistons?
8. (a) What pressure is used on the oxygen line for carbon burning?
(b) Will carbon burning re-grind valves?