TOPIC 1. FITS AND TOLERANCES

TM 10-3930-644-14&P

CONTINENTAL ENGINE

TOPIC 1. FITS AND TOLERANCES

DESCRIPTION

F135

F163

Piston Diameter ......................................................................................................................................

3.4372-3.4392

Cylinder Diameter ...................................................................................................................................

3.4395-3.4375

Wear Limits-Cylinder Bore .....................................................................................................................

008

Piston Pin Hole Diameter........................................................................................................................

.8597-.8595

Top Ring Groove Width ..........................................................................................................................

.081-.080

Maximum Wear Limit Width ....................................................................................................................

.083

Second And Third Rings Groove Width ..................................................................................................

.0965-.0955

Maximum Wear Limit Width ....................................................................................................................

.0985

Fourth Ring Groove Width. ...................................................................................................................

.2515-.2505

Maximum Wear Limit Width ....................................................................................................................

.2535

Piston Fit-Feeler Gauge..........................................................................................................................

.003

Lbs. Pull .................................................................................................................................................

5-10

B. PISTON RINGS

Top Ring Width .......................................................................................................................................

.078-.077

Wear Limits-Minimum Width ..................................................................................................................

.075

Second and Third Rings Width ..............................................................................................................

.0930-.0925

Wear Limits-Minimum Width ...................................................................................................................

.0905

Fourth Ring Width ...................................................................................................................................

.248-.244

Wear Limits-Minimum Width ...................................................................................................................

.0242

Top Ring Gap Clearance .......................................................................................................................

.008-.018

Second and Third Rings Gap Clearance................................................................................................

.008-.018

Fourth Ring Gap Clearance....................................................................................................................

.015-.055

Top Ring Side Clearance........................................................................................................................

.002-.004

Second and Third Rings Side Clearance................................................................................................

.0025-.0040

Fourth Ping Gap Clearance....................................................................................................................

.0025-.0075

C. CONNECTING RODS

Bushing Hole Diameter ...........................................................................................................................

.914-.913

Bearing Hole Diameter ...........................................................................................................................

2.1870-2.1865

Bearing Thickness ..................................................................................................................................

.0616-.0613

Wear Limits-Minimum Thickness............................................................................................................

.0608

Crank Pin Diameter.................................................................................................................................

2.0627-2 0619

Wear Limits-Minimum Diameter..............................................................................................................

2.0609

Clearance Limits .....................................................................................................................................

.0006-.0022

Desired Clearance..................................................................................................................................

.0015

Wear Limits-Maximum Clearance...........................................................................................................

.0032

Side Play.................................................................................................................................................

.010-.006

Desired Side Play ...................................................................................................................................

.006

D. PISTON PIN

Length.....................................................................................................................................................

2.878-2.868

Diameter .................................................................................................................................................

.8593-.8591

Wear Limits-Minimum Diameter..............................................................................................................

.8588

Desire Fit.................................................................................................................................................

Light Push

Bushing Hole Diameter - Fin ...................................................................................................................

.8597-.8595

Wear Limits-Maximum Diameter.............................................................................................................

.8607

Pin Clearance in Bushing........................................................................................................................

.0006-.0002

Desired Pin Fit.........................................................................................................................................

.0004

NOTE

Where no specification is listed for the F163 engine it is identical to the

specification for the F135 engine.

R-104-1

3-1B