Overview - Pistons And Connecting Rod: Notes
WARNING: This page is about a different car, the 2018 Volkswagen Jetta, 2017 Volkswagen Jetta, and 2016 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Bolts
- 30 Nm +90°
- Replace after removing.
- Use old bolts for the radial clearance measurement and do not tighten with an additional turn
- Connecting Rod Bearing Cap
- Due to the separation procedure (cracking) of the connecting rod, the connecting rod bearing cap only fits in one position and only to the corresponding connecting rod.
- Mark the allocation to the cylinder and connecting rod with paint -B-.
- Installed position: the tab -A- on the connecting rod bearing cap faces the belt pulley side.
- Bearing Shells
- Installation position. Refer to Installation Position Of Bearing Shell .
- Replace any worn bearing shells
- Check for secure fit
- Connecting Rod
- With a cracked connecting rod bearing cap
- Always replace as a set
- Mark allocation to the cylinder and connecting rod bearing cap with paint -B-
- Radial play, measuring. Refer to CONNECTING RODS, CHECKING RADIAL CLEARANCE .
- Separating the new connecting rod. Refer to NEW CONNECTING ROD, SEPARATING .
- Installed position: the tab -A- on the connecting rod bearing cap faces the belt pulley side.
- Circlip
- Replace after removing.
- Quantity: 2
- Piston Pin
- Removing and installing. Refer to PISTONS, REMOVING AND INSTALLING .
- Piston
- Label the installation position and cylinder allocation. Refer to Piston Installed Location And Allocation, Piston To Cylinder .
- Removing and installing. Refer to PISTONS, REMOVING AND INSTALLING .
- Check piston and cylinder bore. Refer to PISTON AND CYLINDER BORE, CHECKING .
- Piston Rings
- Compression Rings
- Measuring the gap. Refer to Checking The Piston Ring Gap .
- Measuring side clearance. Refer to Checking The Piston Ring Groove Clearance .
- Use piston ring pliers (commercially available) for removing and installing
- Installation position: "TOP" lettering or side with lettering faces the piston crown.
- Offset gaps by 120°
- Piston Ring
- Oil Scraping Ring
- Measuring the gap. Refer to Checking The Piston Ring Gap .
- Measuring side clearance. Refer to Checking The Piston Ring Groove Clearance .
- Use piston ring pliers for removing and installing
- Installation position: "TOP" lettering or side with lettering faces the piston crown.
- Offset gaps by 120° on the lower compression ring