Table 2. Engine Repair and Replacment Standards - Continued
Manufacturer's
Maximum
Maximum
dimenions and
Desired
allowable
allowable
tolerances in
clearence
clerance
wear
inches
Maximum
Minimum
Minimum
Maximum
Rings:
Ring width:
1st -------------------------------------------
0.1485
0.1490
0.1500
2d; 3d --------------------------------------
0.1505
0.2490
-----------------------------------------
0.2485
4th
0.1865
5th ----------------------------------------------------
0.1860
Ring thickness:
1st; 2d; 3d --------------------------------
0.268
0.278
4th; 5th --------------------------------
--------
0.210
--------
0.018
--------
Ring gap clearance ------------------------------
0.032
Ring aide clearance:
--------
--------
--------
0.008
--------
lst; 2d; 3d --------------------------------
--------
--------
0.0015
---------
--------
0.0025
0.0030
4th; 5th --------------------------------
Piston Pins:
4.539
Length ------------------------------------------
4.524
--------
Diameter ----------------------------------------
--------
--------
0.003
1.7500
1.7498
Desired fit-light push -----------------------
0.001
Bushing hole diameter finish ----------------
1.7505
--------
--------
1.7503
Pin clearance in bushing ------------------
--------
0.0003
0.0007
0.001
--------
Crankshaft:
3.749
Main bearing journal diameter ----------
3.750
Crankpin diameter ----------------------------
3.499
3.500
End play ---------------------------------------
------
--------
0.005
0.008
Bearing bore --------------------------------
3.999
4.000
Shell thickness --------------------------------
0.1232
0.1237
Clearance --------------------------------------------
--------
--------
0.0016
0.0046
--------
0.001
Connecting Rods:
Length, center-to-enter ----------------------------
10.498
10.502
Bushing hole diameter -----------------------------
1.8755
1.8745
Bushing hole diameter -----------------------------
3.6925
3.6935
0.0950
Bearing thickness --------------------------------
0.0955
Clearance -------------------------------------
--------
--------
0.0015
--------
0.0045
0.0055
Width at bearing end ---------------------------
2.426
2.428
--------
Side play ---------------------------------------
0.008
--------
0.012
Camshaft:
2.2475
Bearing journals diameter ------------------
--------
--------
2.2480
0.0015
Cam lift ----------------------------------------
--------
0.391
2.2495
Bushings diameter ---------------------------
--------
2.2500
--------
0.0020
Clearance --------------------------------------
--------
--------
0.0015
0.004
0.0025
--------
End play ---------------------------------------
--------
--------
0.005
0.009
Tappets:
Tappet diameter --------------------------------
0.6082
--------
0.6087
--------
0.0015
Tappet hole diameter clearance -------------
--------
--------
0.0002
0.0019
--------
0.001
0.6089
Tappet guide hole diamete --------------------
0.6101
Oil Pump:
Clearance between gears and pump body
--------
--------
--------
--------
--------
0.001 to
0.003
Clearance between gear and cover
--------
--------
--------
--------
--------
0.0015 to
0.006
AGO 8498A
16