MODEL F124
CYLINDER F124
| Type | Size | Max. Taper | Above Block |
| Bored In | 3.002 | .008 | - |
| Block | 3.000 | - | - |
PISTON F124
| Pinhole Diameter
|
Ring Grove Diameter | Ring Grove Width | Fit in Cyl
Bore |
||||||
| 1st | 2nd | 3rd | 4th | 1st | 2nd | 3rd | 4th | ||
| .8994 | 2.684 | 2.684 | 2.884 | 2.664 | .1235 | .1235 | .1235 | .253 | .002x.5" Gauge |
| .8952 | 2.674 | 2.674 | 2.874 | 2.634 | .1275 | .1275 | .1275 | .252 | 5-10 Lbs. |
|
Diameter at Bottom of Piston Skirt |
||||||||||
| A3 | A2 | A1 | A | AA | B | BB | C | CC | D | DD |
| 2.99725 | 2.99775 | 2.99825 | 2.99875 | 2.99925 | 2.99975 | 3.00025 | 3.00075 | 3.00125 | 3.00175 | 3.00225 |
| 2.99775 | 2.99825 | 2.99875 | 2.99925 | 2.99975 | 3.00025 | 3.00075 | 3.00125 | 3.00175 | 3.00225 | 3.00275 |
PISTON PIN F124
| Pin Diameter | Diameter Hole In Rod | Finished Bushing Diameter | Pin Fit In Piston | Clearance In Bushing | |
| Possible | Desired | ||||
| .8593 | .914 | .8597 | Lite Push Fit | .0002 | .0004 |
| .8591 | .913 | .8595 | Piston Heated To 160° F | .0006 | - |
PISTON RING F124
| Type Of Ring | Groove Position | Width | Thickness | Gap Clear | Side Clear |
| Taper Face | 1 | .124 | .135 | .013 | .004 |
| Compression | .123 | .125 | .008 | .002 | |
| Taper Face | 2 | .124 | .135 | .013 | .004 |
| Compression | .123 | .125 | .008 | .002 | |
| Taper Face | 3 | .124 | .135 | .013 | .004 |
| Compression | .123 | .125 | .008 | .002 | |
| Ventilated | 4 | .249 | .139 | .017 | .0025 |
| Oil Control | .2485 | .129 | .007 | .001 |
VALVE GUIDE F124
| Outside Diameter | Stem Hole Diameter | Valve Seat Face to Top Of Guide | Valve Stem Clearance | Desired Stem Clearance | ||||
| Intake | Exhaust | Reamed | Intake | Exhaust | Intake | Exhaust | Intake | Exhaust |
| .6575 | .6575 | .3432 | 1 15/32 | 1 15/32 | .0026 | .0055 | .0015 | .0045 |
| .6565 | .6565 | .3422 | - | - | .0008 | .0037 | - | - |
INTAKE VALVE F124
| Stem Diameter | Max. Stem Wear | Min. Margin | Face Angle | Clearance Limits | Desired Clearance |
| .3414 | .002 | 1/32 | 30° | .0026 | .0015 |
| .3406 | - | - | - | .0008 | - |
EXHAUST VALVE F124
| Stem Diameter | Max. Stem Wear | Min. Margin | Face Angle | Clearance Limits | Desired Limits |
| .3385 | .002 | 1/32 | 44° | .0055 | .0045 |
| .3377 | - | - | - | .0037 | - |
VALVE SEAT (INTAKE) F124
| Seat Angle | Seat Width | Stone Size | Narrow Stone | Stone Diameter |
| 30° | 1/16 | 30° | 15°-70° | 1 5/8 |
VALVE SEAT (EXHAUST) F124
| Seat Angle | Seat Width | Stone Size | Narrow Stone | Stone Diameter |
| 45° | 3/32 | 45° | 15°-70° | 1 3/8 |
VALVE SPRING F124
| Free Length | Valve Closed | Valve Open | ||
| Spring Length | Spring Load | Spring Length | Spring Load | |
| 2 1/16 | 1 45/64 | 47-53 lbs. | 1 27/64 | 96-104 lbs. |
CAMSHAFT F124
| Bearing Journal Diameter | Tappet Hole Dia. | Tappet Dia. | Clearance Limits | End Play | ||
| Front | Center | Rear | ||||
| 1.8725 | 1.7465 | 1.2475 | 1.0005 | .9995 | .0015 | .006 |
| 1.8715 | 1.7456 | 1.2465 | 1.0000 | .9990 | .0005 | .004 |
CAMSHAFT BEARINGS F124
| Inside Bearings | Clearance Limits | Oil Pump Backlash | ||||
| 1 | 2 | 3 | 1 | 2 | 3 | |
| 1.8755 | 1.7502 | 1.2505 | .004 | .0045 | .004 | .0065 |
| 1.8745 | 1.7495 | 1.2495 | .002 | .003 | .002 | .003 |
CONNECTING ROD F124
| Side Play | Bearing Journal Size | Bearing Clearance | Desired Clearance | |
| Possible | Desired | |||
| .010 | .006 | 1.9375 | .0022 | .001 |
| .006 | - | 1.9365 | .0002 | - |
CRANKSHAFT F124
| Thrust On Front Main Bearing | End Thrust | Bearing Journal Size | Bearing Clearance | Desired Clearance | Flywheel Runout |
| .006 | 2.250 | .0024 | .001 | .008 | |
| .004 | 2.249 | .0002 | - | - |
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