GM 88894219 Ring Kit,Piston

There are times that when a pistons is needed to be fixed properly to its same reciprocating connecting rod its more advisable to leave it to a professional and has to use an arbor press. New piston rings should be in the size of the piston in use and it is important for a rebuilt engine to have them fitted. To do this, place the piston rings through each set carrying the rap ring a 2nd ring and a three-piece oil control ring and measure the ring end gap for all of them. Place the first top ring into the cylinder bore in the manner with the ring shoulder placed about 1/4 inch below the top of the ring travel and the ring perpendicular to the cylinder wall. In the case where there is lack of space to insert the feeler gauge under the ring's ends - replace the ring. Roll each piston ring around the piston to feel if there is any binding of the ring in its groove; replace any distorted ring. When fitting the rings, the gaps have to be in the correct places, if possible use a piston ring expander on the rings or small lengths of tinning. The lower and upper steel oil ring rails together with gap location, installation process of bottom oil ring spacer and its parts. The same should be done on the second and the top rings and the gaps should also be well arranged. Last, take a blade feeler gauge and check the piston ring clearance in its grooves, trapped in the piston rotating it to make sure that the correct clearance is provided and do the needful as per the case and replace.

Once the ring end gaps have been checked and corrected, install the rings on the pistons, starting with the oil control ring, which consists of three components.

Verify the correct ring end gaps and confirm the piston ring side clearance.

Proceed to install the rings on the pistons.