- Axial clearance: max 0.30 mm.
- Radial clearance: 0.07-0.09 mm.
Figure 2.52. Crankshaft: 1 - Bolt; 2 - Main bearing caps; 3.6- Axial clearance adjusters; 4, 5 - Inserts; 7 - Timing chain drive gear; 8 - Crankshaft
Figure 2.53. Piston and connecting rod: 1 - Piston rings; 2 - Piston; 3 - Connecting rod; 4 - Connecting rod cover; 5 - Bolt; 6 - Insert; 7 - Cylinder block; 8 - Piston pin; 9 - Retaining ring
Figure 2.54a. Checking the piston ring thermal clearance.
Figure 2.54b. Checking the piston ring clearance by height.
Table 2.4. Piston and piston ring clearance dimensions
The original information is posted on the website [www.vwmanual.ru]
| Parameters | Cylinder diameter |
| Main diameter, mm | 91.4 + 0.018 |
| Parameters | New ring |
| Piston ring thermal clearance | |
| Upper compression ring, mm | 0.80 |
| Lower compression ring, mm | 1.00 |
| Oil scraper ring, mm | 0.80 |
| Piston ring height clearance | |
| Upper compression ring, mm | 0.01 |
| Lower compression ring, mm | 0.01 |
| Oil scraper ring, mm | 0.01 |
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