Question

The figure shows the cylinder and ring ridge. if the amount of cylinder wear does not require cylinder reboring,

A says the ring ridge at the top of each cylinder can be removed with 400g sand paper.
B says the ring ridge at the top of each cylinder can be removed with a 200g bead hone

-A
-B
-Both
-Neither

Answer 1

The removal of a cylinder's ring ridge can be approached with either 400-grit sandpaper or a 200-grit bead hone, with the choice dependent on the ridge's severity and the cylinder's condition. A professional assessment is recommended to decide the best and safest method. the correct option is (a).

Step-by-step explanation:

The subject involves the maintenance of a vehicle's engine, particularly the process of dealing with cylinder wear and the removal of a ring ridge. In automotive maintenance, the ring ridge is a raised area that forms at the top of the cylinder where the piston doesn’t reach and the cylinder wall doesn’t wear. This may occur after significant use of an engine and is a sign of engine wear.

Statement A suggests using 400-grit sandpaper to remove the ring ridge. This method is less aggressive and might be suitable for a light ridge and a cylinder that doesn't require a full rebore. Statement B suggests using a 200-grit bead hone, which is a more abrasive method, and can be used if the ridge is more pronounced and requires a more aggressive approach to remove it without reboring the cylinder.

Neither statement is entirely incorrect, but the choice between sandpaper and bead hone depends on the severity of the ring ridge and the goal of the maintenance. Ultimately, a professional should assess the cylinder's condition to decide the best method for removal without over-wearing the cylinder or affecting its integrity.