MODEL F226

CYLINDER F226

Type Size Maximum Taper
Bored In 3.3145 .008
Block 3.3125 -

PISTON F226

Pin Hole Diameter Ring Groove Diameter Ring Groove Width Fit In Cylinder Bore
1st 2nd 3rd 4th 1st 2nd 3rd 4th

.8594

3.298 3.298 3.298 3.298 .1256 .126 .126 .251 .002X1.2"Gage
.8592 3.296 3.296 3.296 3.296 .1255 .125 .125 .250 5-10 lbs.

 

Diameter At Top Of Piston

Diameter At Bottom Of Oiston
3.298 3.312
3.296 3.310

PISTON PIN F226

Pin Diameter Diameter Hole In Rod Finished Bushing Diameter

Pin Fit In Piston

Clearance In Bushing

Possible

Desired

.8593 .914 .8597

Lite Push Fit

.0006 .0004
.8591 .913 .8595

Piston Heated To 160F

.0002 -

PISTON RINGS F226

Type Of Ring Groove Position Width Thickness  Gap Clear Side Clear
Plain 1 .124

.145

.020

.0035

Compression .123 .135 .010 .0015
Taper Face 2 .124 .145 .020 .003
Compression .123 .135 .010 .001
Taper Face 3 .124 .145 .020 .003
Compression .123 .135 .010 .001
Ventilated 4 .249 .150 .016 .0025
Oil .2485 .140 .008
.001

VALVE GUIDE F226

Outside Diameter Stem Hole Diameter Valve Seat Face To Top Of Guide Valve Stem Clearance Limits

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 F226

Stem Diameter Maximum Stem Wear Minimum Margin Face Angle Clearance Limits Desired Clearance
.3414 .002 1/32 30 .0026 .0015
.3406 - - - .0008 -

EXHAUST VALVE F226

Stem Diameter Maximum Stem Wear Minimum Margin Face Angle Clearance Limits Desired Clearance
.3385 .002 1/32 44 .0055 .0045
.3377 - - - .0037 -

VALVE SEAT (INTAKE) F226

Seat Angle Seat Width Stone Size Narrow Stone Stone Diameter
30 1 1/16 30 15-70 1 5/8

VALVE SEAT (EXHAUST) F226

Seat Angle Seat Width Stone Size Narrow Stone Stone Diameter
45 3/32 45 15-70 1 3/8

VALVE SPRING F226

Free Length

Valve Closed

Valve Open

Spring Length Spring Load Spring Length Spring Load

1.130

1 21/32 47-53lbs. 1 3/8 103-110lbs.

CAMSHAFT F226

Bearing Journal Diameter

Tappet Hole Diameter

Tappet Diameter

Clearance Limits

End Play

1 2 3 4
1.8725 1.8095 1.7465 1.2475 1.0005 .9995 .0015 .006
1.8715 1.8085 1.7437 1.2465 1.0000 .9990 .0005 .004

CAMSHAFT BEARINGS F226

Inside Diameter

Clearance Limits

Oil Pump Backlash

1 2 3 4 1 2 3 4
1.8755 1.8125 1.7502 1.2505 .004 .004 .003 .002 .0065
1.8745 1.8115 1.7495 1.2495 .002 .002 .065 .004 .005

CONNECTING ROD F226

Side Play

Bearing Journal Size

Bearing Clearance

Desired Clearance

Possible Desired
.009 .007 2.3752 .0025 .001
.006 - 2.3744 .007 -

CRANKSHAFT F226

Thrust On Front Main Bearing

End Thrust

Bearing Journal Size

Bearing Clearance

Desired Clearance

Flywheel Runout

.006 2.3752 .0002  .0015 .008
.004 2.3744 .0015 - -

 


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