How to replace a piston

[Pappy]

Here the caps are shown along with the 2 small oil lines that connect the two caps. The oil ines come free easily, so even when doing a valve adjustment, keep them in mind.

[Pappy]

The cams will then need to be cleared of the timing chain. Have someone hold the chain to prevent it from falling down into the bottom end or use something to keep it up and out of the way.

[Pappy]

Here the cams are removed and you can see one keeper that looks like a half moon.

[Pappy]

Once the cams are removed, the manual states that the three 6mm bolts should be loosened prior to loosening the head bolts to prevent any damage.

[Pappy]

With the 3 bolts removed, now you can proceed to removing the head bolts

[Pappy]

The headbolts on this engine differ in length. The manual will instruct you as to what length bolts installs in which position when you begin reassembly

[Pappy]

With the cylinder removed, you will want to use some shop towels or rags to tuck down into the bottom end to prevent debris, bolts etc from falling into the now exposed engine.

[Pappy]

The piston in this engine has lost a ring that has damaged the piston and scored the cylinder wall

[Pappy]

Eric uses a bore gauge to determine the condition of the rod end and also checks for freeplay. This engine would only need a new piston and rings along with a bored cylinder to begin reassembly.

Your manual will provide all the needed specs for inspecting and all of the proper torque specs for getting things buttoned up.

[Pappy]

The Cometic gasket kit used includes a nw oring for the water temperature sensor and is replaced