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Crank markings, bearing thicknesses, clearances
On the crank shaft there is the following marking:
BBBACAC 12532 IZZZII The first row is main journals - right? Mine are: #1 59,995mm #2 60,000mm #3 59,995mm #4 60,005mm #5 59,995mm #6 60,000mm #7 59,995mm The second row? Third row may be big end journals? Mine are all 51,990mm. All rod "eyes" are 55.000mm except #3 which is 55.005mm. The FSM gives OEM big end bearing thickness range 1,486-1,498mm. Aftermarket bearing (ACL) thicknesses are given max 1,500mm and for the "X" max 1,487mm. No tolerance is given - just the max thickness at the crown. Since my diameters are all in opposite ends of the tolerances I need the "X" bearings to get any sensible oil clearances.... 0,011mm is just way, way too tight. Any comments? Tapani |
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