Westerbeke 5.0KW BCG-60Hz Service Manual page 40

SERVICE DATA / STANDARDS AND LIMITS • BeG ENGINE/GENERATOR!
Component Specified Value
I
Standard Repair limit
inches(mm) inches(mm)
PISTON AND CONNECTING ROD
Piston Pin Press-in temperature
. . ..... ",., ... ,., ... , ... """", .. " ... ordinary temperature
Connecting Rod Center length
................. " ........... .4.01384,0178 (101.95 -102,05)
Parallelism between Big End and Small End
.. " .. " ... " ............... " .. "" ............ 0.004 (0,05)
Connecting Rod Twist...." ................ 0.004 (0.1)
Connecting Rod Big End to Crankshaft Side Clearance
.................. " .............. 0.0039 - 0.0098 (0.10 - 0.25) .......... 0.16 (0.4)
Component
Specified Value
I
Standard Repair Limit
inches(mm) inches(mm)
CRANKSHAFT, BEARING
Crankshaft End Play .......... 0.0020 - 0.0098 (0,05 - 0.25) ................. .
Crankshaft Journal 0.0, .. 1.5740 -1.5748 (39.98 - 40.0)
Crankshaft Pin 0,0, ........ 1.4165 -1,4173 (35.98 - 36,00)
Cylindericity of Journal and Pin
..................................... Less than 0.0002 (0.005)
Concentricity of Journal and Pin
, , .... " .. " ........................ .Less than 0,0006 (0.015)
Oil
Clearance of Journal
, ........ "" ................... 0.0008 - 0.0018 (0.021 - 0,045) ...... 0.0039 (0.1)
Oil Clearance of Pin ........ 0.0009 - 0,0020 (0.022 - 0.052)
Undersize rework dimension of Journal
0.25 U.S .................. 1.5644 - 1.5650 (39.735 - 39.750)
0.50 U.S, ................. 1 ,5545 - 1.5551 (39.485 - 39,500)
0.75 U.S ... " ............ 1.5447 - 1.54539 (39.235 - 39,250)
Undersize rework of dimension of pin
0.25 U.S, ................. 1.4069 - 1.4075 (35.735 - 39.750)
0.50 U.S .................. 1 ,3970 - 1.3976 (35.485 - 35.500)
0.75 U.S ....... " ......... 1 ,3872 -1.3878 (35.235 - 35.250)
Engines & Generators
33