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151 ENGINE
6A2-25
Seat Angle-Intake
&
Exhaust
......................................
46"
Stem to Guide Clearance
...................
Intake .0010/.0027
Exhaust Top .0010/.0027
Exhaust Bottom .0020/.0037
Overall Length
..........................................................
4.92"
Springs (Force @ Length)
................................
78-86 1bs.
Without internal damper @ 1.66"
Installed Height
........................................................
1.69"
VALVE TRAIN
Lifter-Leak Down Rate..
............................
12-90 seconds
with 50 lbs. load
-Plunger Travel
........................................
.125" (Gage)
-
~-
Pushrod-Material
..........................
Ball End Steel Tubing
-Length
..................................................................
9.70"
Rocker Arm-Material
.................................
Stamped Steel
-Ratio
...........................................................
1. 75:l
LUBRICATON SYSTEM
Oil Pump
..........................................................
Gear Type
Oil Pressure
................................
36
-
41 lb. 8 2000 rpm
Oil Filter
.......................................................
Full Flow
Filter Type
...............................................................
PF25
Crankcase Capacity Less Filter
.................................
3 qt.
Crankcase Capacity With Filter
................................
4 qt.
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