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Old 04-01-2010, 07:55 PM
Junior Member
Join Date: Apr 2009
Posts: 28
Default torque specifications?

1992 b2200 4 cylinder, standard transmission.

hey guys and gals, long time. truck just keeps going.
i am going to experiment with adjusting my lifters.

does anyone know the bolt torque specifications for the valve cover and the camshaft? i believe that's all i will need to know to give this a shot

thanks a ton all!!
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Old 04-16-2010, 08:08 AM
Junior Member
1988 Mazda B-Series Pickup
Join Date: Apr 2010
Posts: 12

if noone has helped you yet here is some valuable info. Sorry that its long but this should cover all the basics:

Camshaft Journal Diameter Front & Rear 1.2575-1.2585 in Center 1.2563-1.2573 inMaximum Run-out 0.0012 inCamshaft Bearing Clearance Front & Rear 1.9268-1.9274 in Center 1.9258-1.9266 inCamshaft End Play 0.003-0.006 in

Valve Cover 52-69

Valve GuideInside DiameterStandard Inside Diameter 0.3177-0.3185 in
Valve SeatSeat Angle 45 degSeat Width Intake 0.047-0.063 in Exhaust 0.047-0.063 in
Valve Spring Free Length Inner 1.732 in Outer 2.047 inPressure Inner 66 lbf at 1.04 in Exhaust 94.6 lbf at 1.22 inOut Of Square Limit Inner 0.06 in Outer 0.07 in

Rocker Arm AssemblyRocker Arm Shafts 13-20 ft.lbRocker Shaft-To-Cylinder Head 13-20
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