Cita:
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Empezado por samukan
jpvm sabes en la paguina no encontre las especificaciones del motor....
solo encontre con el inyector holley...
me interesa las espesificaciones standar.. si alguien me la pued econseguir me avisan... ok
gracias....
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Cumpita, este motor V6 2.8 es el que traina las Blazer antiguas (S-10) andes del 4.3. Tambine estaban en las camionetas S10 antiguas y en el Jeep Cherokee tambien.
Aca tienes algunas pomadas como sacarle potencia a este motor :
http://www.4x4wire.com/tech/60degreeV6/index.htm
V6 , 2.8 lt, 60° entre bancos
-Modelo Carburado (Carter electronico de 2 gargantas):
Potencia = 115 Hp
Torque = 145 lb pie
-Modelo con TBI :
Potencia = 125 Hp
Torque = 152 lb pie
Este motor se hizo hasta el año 1989.-
Mas datos :
2.8L V6
Bore x Stroke 3.5O3inX2.992in (89mmX76mm)
Firing Order 1-2-3-4-5-6
Bearing Clearances
Main 0.0015-0.0025jn (0.038-0.064mm)
Rod 0.0011 -0.0025in (0.028-0 064mm)
Connecting Rod Side Clearance 0.008-0.020in (0.20-0.51 mm)
Camshaft
Lift
Intake 0.231 in (5.86mm)
Exhaust 0.262in (6.65mm)
Note: Cam above used on early base 2.8L V6’s & some S1Os &
Camaros
Intake 0.262in (6.65mm)
Exhaust 0.273in (6.94mm)
Journal Clearance 0.001 -0.0025in (0.026-0.063mm)
Crankshaft Main Journals
Small journal
#1, #2 & #4 Journals 2.4937-2.4946in (63.340-63.364mm)
#3 Journal 2.4932-2.4941 in (63.327-63.351 mm)
Large Journal 2.647-2.648in (67.241-67.265mm)
Taper (maximum) 0.0002in (0.005mm)
Out-Of-Round (maximum) 0.0002in (0.005mm)
Crankshaft Rod Journals
Small Journal 1.998-1 .999in (50.758-50.784mm)
Large Journal 1.998-1 .999in (50.758-50.784mm)
Taper (maximum) 0.0002in (0.005mm)
Out-Of-Round (maximum) 0.0002in (0.005mm)
Crankshaft End Play 0.0024-0.0083in (0.06-0.21 mm)
Cylinder Bore
Diameter 3.503-3.SO6in (88.992-89.070mm)
Taper (maximum) 0.0008in (0.020mm)
Out-Of-Round (maximum) 0.0008in (0.020mm)
Piston-To-Bore Clearance 0.0007-0.001 7in (0.017-0.043mm)
Oil Pressure (Engine @ Normal Operating Temp)
30-S5psi @ 2000rpm (205-38OkPa @
2000rpm)
Piston Ring End Gap Clearance
Top Compression 0.010-0.020in (0.25-0.50mm)
Second Compression 0.010-0.020in (0.25-0.50mm)
Oil Rails 0.011-0.030in (0.25-0.50mm)
Piston Ring Side Clearance
Top Compression 0.012-0.027in (0.30-0.70mm)
Second Compression 0.016-0.037in (0.40-0.95mm)
Oil (maximum) 0.OO8in (0.200mm)
Rocker Arm Ratio 1.50:1
Valve Stem Clearance 0.001 -0.0027in (0.026-0.068mm)
Valve Spring Pressure
Cast Iron Heads
Valve Open 195lbs @ 1.1 8in (867Nm @ 30mm)
Valve Closed 88lbs @ 1 .575in (391 Nm @ 40mm)
Aluminum Heads
Valve Open 215lbs @ 1.291 (956Nm @33mm)
Valve Closed 9Olbs @ 1.701 (400Nm @ 43mm)
Valve Spring Installed Height 1.575in (40mm)
Cast Iron Heads 1.614in (41mm)
Aluminum Heads 1.575in (40mm)
Torque Specifications 2.8L
AIR Tubing Nuts 18-20lb-ft
Bellhousing-To-Engine Bolts 30-35lb-ft
Clutch Pressure Plate-To-Flywheel Bolts 18lb-ft+30deg
Camshaft Sprocket Bolts 16-20lb-ft
Camshaft Rear Cover Bolts 84-96lb-in
Connecting Rod Nuts 36-42lb-ft
Cylinder Head Bolts
Aluminum Heads 33lb-ft+90deg
Cast Iron Heads 40lb-ft+90deg
Distributor Hold Down Bolt 23-28lb-ft
EGR Valve Nuts 16-20lb-ft
Engine Mounting Nuts 28-32lb-ft
Exhaust Manifold Bolts
Aluminum Heads 16-20lb-ft
Cast Iron Heads 22-28lb-ft
Flywheel Bolts 50-55lb-ft
Flexplate Bolts 50-55lb-ft
Intake Manifold Bolts (Carburated) 15-18lb-ft
Intake Manifold Bolts (Throttle Body) 15-18lb-ft
Intake Manifold Bolts (MPFI)
Lower Plenum 16-18lb-ft
Manifold 13-25lb-ft
Main Bearing Cap Bolts 68-72lb-ft
Oil Pan Bolts
M8x1.25mm X 14mm 16-20lb-ft
M6x1.00mm X 16mm 84-96lb-in
Oil Filter Adapter Bolt 61-65lb-ft
Oil Pan Drain Plug 16-20lb-ft
Oil Pan Stud 72-84lb-in
Oil Pump Mounting Bolt 28-32lb-ft
Oil Pump Cover Screws 72-96lb-in
Rocker Arm Cover Bolts 72-96lb-ft
Rocker Arm Nut (Non-adjustable) 15-20lb-ft
Rocker Arm Studs 46-50lb-ft
Spark Plugs
Aluminum Heads (Apply Anti-seize to threads) 18-22lb-ft
Cast Iron Heads 22-25lb-ft
Thermostat Housing Bolts 16-18lb-ft
Timing Chain Case
10mm Bolts 34-40lb-ft
8mm Bolts 20-24lb-ft
Timing Chain Damper Bolts 13-17lb-ft
Torsional Damper Center Bolt 67-73lb-ft
Water Pump Bolts
M6 x 1.00mm X 25mm 72-96lb-in
M8 x 1.25mm X 70mm 16-20lb-ft
M10 x 1.50mm X 75mm 30-35lb-ft
Water Pump Nut 72-96lb-in