Valve springs:
Governed speed ........................ 1650 rpm
Outside diameter ...........1.3125 in.
Cycle ...................................... 4
Wire size .......................0.172 in.
Rotation of flywheel end............. Counterclockwise
Force required to
Firing order ................................ 1-5-3-6-2-4
compress spring to
Valve springs:
1.67 in ........................58.8 lb +*3.5 lb
Wire gage:
Force required to
Outer ............................ 0.225 in.
compress spring to
Inner ............................. 0.172 in.
1.226 in ......................137 lb + 7 lb
Force required to 41 lb min to 49 lb max
c. Crane Engine Repair and Replacement
compress inner
Standards.
spring to 2.59375
in.
tolerances, clearances, and maximum allowable wear
Force required to com-............... 95 lb min to 105 lb max
and clearance.
press inner spring to
d. Carrier Engine.
2.03125 in.
Engine .......................................Gasoline
Force required to com-............. 85 lb min to 95 lb max
Manufacturer ..............................Continental
Motors
press outer spring to
Corp.
2.75 in.
Model .........................................SS 6749
Force required to com-............. 192 lb min to 20 lb max
Serial numbers ..........................59001C
through
press outer spring to
59500C
2.1875 in.
Horsepower ...............................227 at 2600 rpm
Valve seat angle ........................ 45 deg (degrees)
Number of cylinders ..................6
Valve face angle......................... 45 deg
Cooling ......................................Liquid
e. Carrier Engine Repair and Replacement
Compression at cranking............Cold 80 lb hot 85 lb
Standards.
speed
tolerances, clearances, and the maximum allowable
Bore ...........................................5 3/8 in.
wear and clearance.
Stroke .........................................5 1/2 in.
Displacement .............................749 cu in.
Table I. Crane Engine Repair and Replacement Standards.
Maximum
Maximum
Manufacturer's
allowable
allowable
Desired
dimensions
clearance
wear
clearance
and tolerance
in inches
Min
Max.
Min
Max.
Crane Engine
Piston to cylinder-------------------------------
--------------------
----------------
0. 004
0.004
-----------------
---------------
Piston pin hole in piston (dia)
1.2498
1.2501
0.0001
0.0002
-----------------
---------------
Ring groove dia:
1st (top) --------------------------------------
3.770
3. 780
-------------------
-------------
-----------------
---------------
2d and 3d -----------------------------------
3.834
3.844
-------------------
-------------
-----------------
---------------
4th --------------------------------------------
3.794
3.804
-------------------
-------------
-----------------
-------------
Ring groove width:
1st ---------------------------------------------
0.097
0.098
-------------------
-------------
-----------------
---------------
2d and 3d -----------------------------------
0.1265
0.1275
-------------------
-------------
-----------------
---------------
4th ---------------------------------------------
0.251
0.252
-------------------
-------------
-----------------
---------------
Ring land dia
1st ---------------------------------------------
4.216
4.220
-------------------
-------------
-----------------
---------------
2d----------------------------------------------
4.220
4.224
-------------------
-------------
-----------------
---------------
3d and 4th -----------------------------------
4.225
4.229
-------------------
-------------
-----------------
---------------
Skirt dia (perpendicular to pin bore)-------
4.245
4.247
-------------------
-------------
-----------------
---------------
Piston rings:
1st (chrome) (compression):
Width----------------------------------------------
0.0925
0.0935
-------------------
-------------
-----------------
---------------
Thickness----------------------------------------
0.202
0.212
-------------------
-------------
-----------------
---------------
Gap clearance----------------------------------
------------------
----------------
0.013
0.025
-----------------
---------------
Side clearance----------------------------------
------------------
----------------
0.0035
0.0055
-----------------
---------------
TAGO 5030A
5
