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Crank Journal specs

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Old 10-28-2004, 10:38 PM   #1
88PatrolCar
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Default Crank Journal specs

Does anyone know what the tolerances are on the journals of a 302 crank. Thanks Guys!
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Old 10-29-2004, 12:27 AM   #2
86HOGT
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Default RE: Crank Journal specs

Get a manual! I was just doing the specs on a L99 4.3 V-8 Chev, it's 1.867"!! lol
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Old 10-29-2004, 02:16 AM   #3
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Default RE: Crank Journal specs

oooo, i've been wanting to use this icon for the LONGEST time...... [sm=icon_rtfm.gif] harhar, i feel better :P sorry if you think i'm an ***, but i thought it was funny :P
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Old 10-29-2004, 04:05 PM   #4
roundman
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Default RE: Crank Journal specs

from my '88 manual, these are the specs.
MAIN BEARING JOURNALS
diameter = 2.2490-2.2482"
out-of-round limit = 0.0006 max
taper limit (per inch) = 0.0004 max
journal runout limit = 0.002
surface finish (RMS) = 12 max
runout service limit = 0.005
THRUST BEARING JOURNAL LENGTH = 1.137-1.139"
CONNECTING ROD JOURNAL
diameter = 2.1228-2.1236"
out-of-round limit = 0.0006
taper limit (per inch) = 0.0006 max
surface finish (RMS) = 12 max
MAIN BEARING THRUST FACE
surface finish (RMS) = 35 front/25 rear
runout limit = 0.001 max
FLYWHEEL CLUTCH FACE
runout limit (T.I.R.) = 0.010"
FLYWHEEL RING GEAR LATERAL RUNOUT (T.I.R.)
standard transmission = 0.030
automatci transmission = 0.060
CRANKSHAFT FREE END PLAY = 0.004-0.008"
service limit = 0.012" max
CRANKSHAFT RUNOUT TO REAR FACE OF BLOCK (T.I.R. max) = 0.005"
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