21112496 Volvo.Penta Sealing ring kit

Main Bearings
Main bearings are available with a larger outside diameter than the original size bearings. These bearings are available for the cylinder blocks with the main bearing bore that is larger than the original size.Main bearings are available with 0.50 mm (0.020 inch), 1.00 mm (0.040 inch), and 2.0 mm (0.080 inch) larger outside diameter than the original bearing.The main bearings are also available with a 0.25 mm (0.010 inch) and 1.00 mm (0.040 inch) smaller inside diameter than the standard bearing. Main bearings are also available with smaller inside diameter of 0.50 mm (0.020 inch).Cylinder Block
If the main bearing caps are installed without bearings, the bore in the block for the main bearings can be checked. Tighten the nuts that hold the caps to the torque that is shown in the Specifications. Alignment error in the bores must not be more than 0.040 mm (.0016 inch). Refer to the Special Instruction, SMHS7606 for the use of the 1P-4000 Line Boring Tool Group for the alignment of the main bearing bores. The 1P-3537 Dial Bore Gauge Group can be used to check the size of the bores. The Special Instruction, GMGO0981 is with the group.
Illustration 1 g00285686
1P-3537 Dial Bore Gauge Group
Flywheel and Flywheel Housing
Table 1
Tools Needed Quantity
8T-5096 Dial Indicator Group 1 Face Runout (Axial Eccentricity) of the Flywheel Housing
Illustration 2 g00285931
8T-5096 Dial Indicator Group
If you use any other method of checking the face runout, remember that the bearing clearance must be removed. Remove the clearance in order to get the correct measurements.
Fasten a dial indicator to the flywheel so the anvil of the dial indicator will contact the face of the flywheel housing.
Put a force on the crankshaft toward the rear before the dial indicator is read at each point.
Illustration 3 g00285932
Checking face runout of the flywheel housing
The engine must be prelubed before the crankshaft is rotated. Damage can result if the crankshaft is rotated on dry bearing surfaces.
Turn the flywheel while the dial indicator is set at 0.0 mm (.00 inch) at location (A). Read the dial indicator at locations (B), (C, and) (D).
The difference between the lower measurements and the higher measurements that are performed at all four points must not be more than 0.38 mm (.015 inch), which is the maximum permissible face runout (axial eccentricity) of the flywheel housing. Bore Runout (Radial Eccentricity) of the Flywheel Housing
Illustration 4 g00285934
8T-5096 Dial Indicator
Fasten a dial indicator to the flywheel so the anvil of the dial indicator will contact the bore of the flywheel housing.
Illustration 5 g00285936
While the dial indicator is in the position at location (C), adjust the dial indicator to 0.0 mm (.00 inch). Push the crankshaft upward against the top of the bearing. Refer to the illustration 5. Write the measurement for bearing clearance on line 1 in column (C). Note: Write the measurements for the dial indicator with the correct notations. This notation is necessary for making the calculations in the chart correctly.
Divide the measurement from Step 2 by two. Write this number on line 1 in columns (B) and (D).
The engine must be prelubed before the crankshaft is rotated. Damage can result if the crankshaft is rotated on dry bearing surfaces.
Turn the flywheel in order to put the dial indicator at (A). Adjust the dial indicator to 0.0 mm (.00 inch).
Illustration 6 g00285932
Checking bore runout of the flywheel housing
Turn the flywheel counterclockwise in order to put the dial indicator at (B). Write the measurements in the chart.
Turn the flywheel counterclockwise in order to put the dial indicator at (C). Write the measurement in the chart.
Turn the flywheel counterclockwise in order to put the dial indicator at (D). Write the measurement in the chart.
Add the lines together in each column.