BMW C1 200 - Page 83

11.7
Piston pin
Extl. dia. mm (in) 14.997…15.000 (0.5904…0.5906)
Wear limit mm (in) 14.99 (0.5902)
Installed clearance
Wear limit mm (in) 0.04 (0.0016)
Radial play mm (in) 0.005…0.018 (0.0002…0.0007)
Wear limit mm (in) 0.03 (0.0012)
Piston wristpin bore diameter mm (in) 15.003…15.008 (0.5907…0.5909)
Wear limit mm (in) 15.03 (0.5917)
Piston rings
1st groove taper faced compression ring
End gap mm (in) 0.15…0.35
(0.0059…0.0138)
0.20…0.25
(0.0079…0.0098)
Wear limit mm (in) 0.8 (0.0315) 0.7 (0.0276)
Ring grooves/vertical gap mm (in) 1.02…1.04
(0.0402…0.0409)
0.064…0.03
(0.0025…0.0012)
Wear limit mm (in) 0.1 (0.0039) 0.1 (0.0039)
Ring height R thickness mm (in) 0.975…0.990
(0.0384…0.0390)
0.978…0.990
(0.0385…0.0390)
Wear limit mm (in) 0.97 (0.0382) 0.97 (0.0382)
Height of groove mm (in) 1.35 (0.0531) 1.02…1.04
(0.0402…0.0409)
2nd groove taper faced hook scraper ring
Gap clearance mm (in) 0.15…0.35
(0.0059…0.0138)
0.20…0.35
(0.0079…0.0138)
Wear limit mm (in) 0.8 (0.0315) 0.8 (0.0315)
Ring grooves/end clearance mm (in) 1.22…1.24
(0.0480…0.0488)
0.065…0.03
(0.0026…0.0012)
Wear limit mm (in) 0.1 (0.0039) 0.1 (0.0039)
Ring height R thickness mm (in) 1.175…1.190
(0.0463…0.0469)
1.175…1.190
(0.0463…0.0469)
Wear limit mm (in) 1.17 (0.0461) 1.17 (0.0461)
Height of groove mm (in) 1.22…1.24
(0.0480…0.0488)
3rd groove oil scraper ring
Gap clearance mm (in) 0.4…1.4
(0.015…0.055)
0.2…0.7
(0.0079…0.0276)
Wear limit mm (in) 1.5 (0.0591) 1.0 (0.0394)
Ring grooves/height mm (in) 2.01…2.03
(0.079…0.080)
0.01…0.1
(0.0004…0.004)
Wear limit mm (in) 0.5 (0.0197) 0.2 (0.0079)
Ring height (thickness) mm (in) 2 (0.0787) 1.85…2.00
(0.0728…0.078)
Height of groove mm (in) 2.60 (0.1024) 2.01…2.03
(0.0791…0.0799)
Technical Data C1 C1 200