Oil Piston Ring Orientation Diagram

The bottom oil ring is actually made up of three different rings two narrow rails and one expander.

Oil piston ring orientation diagram.

Quick video on how to install piston rings. Before removing piston clean any carbon from the top of the cylinder bore to prevent ring breakage when removing the piston. Second ring 0050 0055. This piston ring manufacturer has color coded the ends of the oil control ring expander in an effort to prevent overlap during installation.

The underside of this piston features an l suffix indicating that this piston is intended for the left bank of a v engine. In this case the manufacturer s recommendation is to align the expander ring ends with the wrist pin hole in the piston. Once the expander has been installed the oil. Install oil ring support rails on the bottom of the oil ring groove with the antirotational locking detent facing downward.

10 install oil ring assembly as usual. However the second ring also provides a bit of oil control. Rings with a groove in the outside diameter and a pip mark or dot on the side must be installed with the groove toward the bottom of the piston and pip mark towards the top of the piston. Release the tension of the ring.

Using a proper ring installation tool open the oil ring just enough to allow the ring to go over the top diameter of the piston. Step 4 install rings on piston. One two piece oil rings. Place the ring squarely into the piston groove taking care to keep it flat.

Oil rings actual gap 015 050. Rotate the oil ring support rail until antirotational locking detent falls between the opening at intersection of ring groove and wrist pin hole. Starting with the oil rings install each ring on piston using the following orientation. Piston rings and connecting rod oil control ring match marks note.

Install oil control rings. This will allow oil which has been scraped off the cylinder wall by the top oil ring rail to fl ow radially to the oil return holes. Work the opened ring down from the top of the piston to the oil groove. Pistons intended for the right bank will feature an r suffix.

Please note that all three mm or narrower oil rings regardless of brand work best with split. Push the rod and piston out through the top of the cylinder. Emission compliant vlv uses this ring package piston. A larger chamfered oil hole at the top of the small end on some rod designs provides a funnel for improved oil reservoir for floating pin.

We recommend approximately 030 back clearance with our oil rings. The oil ring s main function is to control the amount of oil that makes it between the piston and bore which is necessary for lubrication and heat transfer purposes.