Question about 1989 Chevrolet S-10 Blazer

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My 89 chevy 4.3 truck doesnt start ,i did the hole top half.

I just adjusted the rocker arms and put in the distribitor and change the spark plug wires. The engine back fires when i try to start it. What do you think is the problem.

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  • Chevrolet Master
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Your distributor is 180 degrees out....you need to turn it 180 degrees from the position it is in.

Posted on Jul 23, 2009

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Setting valve clearances


360 with hydraulic lifters, the crankshaft wit a ratchet and socket to get each valve closed. When lifter is at bottom turn the valve adjuster out to where you have free movement then turn adjuster till the rocker arm touches the lifter, then turn the adjuster in three quarters of a turn, and that valve is adjusted. No other clearance is required on hydraulic lifters. Do this with each valve in turn as each piston comes to top dead center using the firing order as a guide. When #1 piston is up to top dead center, both valves are closed. Adjust intake and exhaust at this time. Then the next in the firing order. The firing order can be found on the intake as is each cylinder marked with it's number. If it were a Chevy small block, for example only, firing order is 1-8-4-3-6-5-7-2. I would bring # 1 cylinder up to top dead center on compression stroke by removing that spark plug and stick my finger in the hole and crank the engine till I felt my finger being pushed away with compression, then bring that piston up till the timing mark was on the "0" of the timing tab at drivers side of the harmonic balancer on the crank. Adjust both valves on #1 cylinder and then turn the crank until both valves of #8 cylinder were free moving at the rocker. Then to the next in order of fire. I would turn each adjuster out at least one full turn before starting this procedure, then adjust them in order of firing starting with #1. It isn't hard, just takes time to do it right.

Aug 12, 2014 | AMC CJ7 Cars & Trucks

3 Answers

Adjust rocker arms on 350 chevy small block


Back off on all the rocker arms and check to make sure you didn't bend any push rods then make sure you are starting on #1 Cylinder and readjust, when it starts you can finish the adjustment by backing off rocker arm nut till you here it TICK than tightentill TICK IS GONE. I do not have info on the fireing order for primary adjustment but you should be able to find on line complete instructions, Go to ASK.COM and ask for Chev 350 Valve Adjustment their are several to choose from and even YOUTUBE Videos on it.

Dec 13, 2013 | 1985 Chevrolet Chevy

2 Answers

How to install rocker arms on a Pontiac grand am 2001 V-6


Hi there:

Rocker Arms & Pushrods


Removal & Installation

3.1L & 3.4L Engines
Left Side

  1. Before servicing the vehicle, refer to the precautions section.
  2. Drain the cooling system to a level below the coolant pipe on the front of the engine.
  3. Remove or disconnect the following:
    NOTEKeep the pushrods in order. Intake pushrods are 5 3 / 4 inches long and exhaust pushrods are 6 inches long.


    Negative battery cableSpark plug wiresHeater bypass pipePositive Crankcase Ventilation (PCV) valve and hoseRocker arm cover


    Rocker arms and pushrods

To install:

  1. Lubricate all the valvetrain components with engine oil.
  2. Install or connect the following:

    Pushrods and the rocker arms. Torque the bolts to 24 ft. lbs. (32 Nm).Rocker arm cover using a new gasket. Torque the rocker cover bolts to 89 inch lbs. (10 Nm).PCV valve and hoseHeater bypass pipe. Torque the screw at the water pump to 106 inch lbs. (12 Nm), the bolt at the cylinder head corner to 18 ft. lbs. (25 Nm) and the nut to 18 ft. lbs. (25 Nm).Spark plug wiresNegative battery cable
  3. Refill the cooling system.
  4. Start the vehicle and verify no leaks.




3_4_2013_5_26_48_pm.gif


Right Side
  1. Before servicing the vehicle, refer to the precautions section.
  2. Remove or disconnect the following:
    NOTEKeep the pushrods in order. Intake pushrods are 5 3 / 4 inches long and exhaust pushrods are 6 inches long.


    Negative battery cableAlternator bracket on 2005 modelsSpark plug wires from the spark plugs and the upper intake plenum wire retainerPower brake booster vacuum pipe from the intake plenumAccessory drive beltAlternator, if necessaryIgnition coil assembly and Evaporative Emissions (EVAP) canister purge solenoid as an assemblyRocker arm cover


    Rocker arms and pushrods

To install:

  1. Lubricate all the valvetrain components with engine oil.
  2. Install or connect the following:

    Pushrods and the rocker arms. Torque the bolts to 24 ft. lbs. (32 Nm) plus an additional 30 degree turn.Rocker arm cover using a new gasket. Torque the rocker cover bolts to 89 inch lbs. (10 Nm).Ignition coil and EVAP solenoid assemblyAlternator, if removed. Torque the bolts to 37 ft. lbs. (50 Nm).Accessory drive beltPower brake booster vacuum pipe to the plenumSpark plug wiresNegative battery cable
  3. Start the vehicle and verify no leaks.





Hope this helps.

Mar 04, 2013 | Cars & Trucks

2 Answers

Valve lash procedure


i need to know how to adjust the valves on 02 pont sunfire

Nov 20, 2011 | 1991 Chevrolet K1500

1 Answer

How to remove rocker arm cover, to change spark plugs.


You shouldn't need to remove the rocker arm cover/valve cover. All you should need is a long extention with the spark plug socket on the end of it and just put it down in the hole. You didn't mention the model or year of your hyundai but in many of the Hyundais, this is the case. I know in all cases the valve cover does not need to be removed in order to change the plugs. I hope this helps you and good luck.

Jun 21, 2011 | Hyundai Accent Cars & Trucks

3 Answers

Do I have to take the timming belt off to do a head gasket on a 1999 chevy malibu v6 3.1L


The 3.1 engine does not have a belt,it is a chain motor.You do not need to remove timing chain to remove head.

Apr 12, 2011 | 1999 Chevrolet Malibu

1 Answer

Need head bolt torqe for 3100 and should bolts be dry


The bolts should have thread lock on them when installing, and the torque is done in 2 steps. 33 ft lbs. and then 90 deg. after that on the second pass. 3.1L Engine CAUTION
Observe all applicable safety precautions when working around fuel. Whenever servicing the fuel system, always work in a well ventilated area. Do not allow fuel spray or vapors to come in contact with a spark or open flame. Keep a dry chemical fire extinguisher near the work area. Always keep fuel in a container specifically designed for fuel storage; also, always properly seal fuel containers to avoid the possibility of fire or explosion. LEFT SIDE (FRONT)
  1. Properly relieve the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system into a suitable container.
  4. Disconnect the top half of the air cleaner assembly, then remove the throttle body air inlet duct.
  5. Remove the exhaust crossover pipe heat shield and crossover pipe.
  6. Disconnect the spark plug wires from spark plugs and looms then route the wires out of the way.
  7. Remove the rocker arm (valve) covers.
  8. Remove upper intake plenum and lower intake manifold.
  9. Remove the left side exhaust manifold.
  10. Remove oil level indicator tube. NOTE: When removing the valve train components they must be kept in order for installation in the same locations they were removed from.
  11. Remove rocker arms nut, rocker arms, balls and pushrods.
  12. Unfasten the cylinder head bolts evenly, then remove the cylinder head from the engine compartment. Remove and discard the gasket. To install:
  13. Clean all the gasket surfaces completely. Clean the threads on the cylinder head bolts and block threads.
  14. Place the cylinder head gasket in position over the dowel pins on the cylinder block so the words THIS SIDE UP are showing.
  15. Coat the bolt threads lightly with sealer, then install finger-tight.
  16. Tighten the cylinder head bolts in sequence to 33 ft. lbs. (45 Nm). With all the bolts tightened make a second pass tightening all the bolts an additional 90°.
  17. Install the pushrods, rocker arms, balls and rocker arm nuts in their proper locations. Tighten the rocker arm nuts to 18 ft. lbs. (25 Nm).
  18. Install the lower intake manifold and upper intake plenum.
  19. Install the rocker arm (valve) covers.
  20. Install the oil level indicator tube. Insert the dipstick.
  21. Connect the spark plug wires to spark plugs and looms.
  22. Install the left side exhaust manifold.
  23. Install the exhaust crossover pipe and heat shield.
  24. Refill the cooling system.
  25. Install the top half of the air cleaner assembly and the throttle body air inlet duct.
  26. Connect negative battery cable.
  27. Start vehicle and verify that there are no leaks. Fig. 20: Cylinder head mounting and bolt tightening sequence - 3.1L engine 86883134.gif
RIGHT CYLINDER HEAD (REAR) CAUTION
Fuel Injection systems remain under pressure, even after the engine has been turned OFF. The fuel system pressure must be relieved before disconnecting any fuel lines. Failure to do so may result in fire and/or personal injury.
  1. Relieve the fuel system pressure.
  2. Disconnect the negative battery cable.
  3. Drain the cooling system.
  4. Remove the top half of the air cleaner assembly and remove the throttle body air inlet duct.
  5. Remove the exhaust crossover pipe heat shield and crossover pipe.
  6. Raise and safely support the vehicle.
  7. Detach the Oxygen (O2) sensor connector.
  8. Disconnect the exhaust pipe from the exhaust manifold.
  9. Remove the right side exhaust manifold.
  10. Carefully lower the vehicle.
  11. Disconnect the spark plug wires from spark plugs and wire looms and route the wires out of the way.
  12. Remove the rocker arm (valve) covers.
  13. Remove upper intake plenum and lower intake manifold. NOTE: When removing the valve train components they must be kept in order for installation in the same locations they were removed from.
  14. Remove rocker arms nut, rocker arms, balls and pushrods.
  15. Unfasten the cylinder head bolts evenly, then remove the cylinder head from the engine compartment. Remove and discard the gasket. To Install:
  16. Clean all the gasket surfaces completely. Clean the threads on the cylinder head bolts and block threads.
  17. Place the cylinder head gasket in position over the dowel pins on the cylinder block so the words THIS SIDE UP showing.
  18. Coat the bolt threads lightly with sealer, then install finger-tight.
  19. Tighten the cylinder head bolts in sequence to 33 ft. lbs. (45 Nm). With all the bolts tightened make a second pass tightening all the bolts an additional 90°.
  20. Install the pushrods loosely retained with the rocker arm assemblies. Make sure all pushrods are in the correct locations. Coat the ends of the pushrods with prelube. The intake rods are marked yellow and are 5 3?4 inch long. The exhaust pushrods are marked green and 6 inches long. balls and rocker arm nuts. Tighten the rocker arm nuts to 18 ft. lbs. (25 Nm).
  21. Install the lower intake manifold and upper intake plenum.
  22. Install the rocker arm (valve) covers.
  23. Connect the spark plug wires to spark plugs and wire looms.
  24. Raise and safely support the vehicle.
  25. Install the exhaust manifold.
  26. Connect the exhaust pipe to the exhaust manifold.
  27. Carefully lower the vehicle.
  28. Connect the Oxygen (O2) sensor wiring.
  29. Install the exhaust crossover pipe and heat shield.
  30. Refill the cooling system.
  31. Install the top half of the air cleaner assembly and the throttle body air inlet duct.
  32. Connect negative battery cable.
  33. Start vehicle and verify that there are no leaks.
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Feb 04, 2011 | 1997 Oldsmobile Achieva

1 Answer

Rocker arm torque specs on a 97 gmc jimmy 4.3


  1. For the 4.3L engines which are equipped with screw-in type rocker arm studs with positive stop shoulders, tighten the rocker arm adjusting nuts against the stop shoulders to 20 ft. lbs. (27 Nm) on 1994-96 models and 18 ft. lbs. (25 Nm) on 1997-99 models. No further adjustment is necessary, or possible.
  2. For most 4.3L engines which are not equipped with screw-in type rocker arm studs and positive stop shoulders, properly adjust the valve lash. For details on valve lash adjustment, please refer to the procedure in Routine Maintenance . (see below)
4.3L Engine

The 4.3L engines may be equipped with either of 2 rocker arm retaining systems. If your engine utilizes screw-in type rocker arm studs with positive stop shoulders, no valve lash adjustment is necessary or possible. If however, you engine utilizes the pressed-in rocker arm studs, use the following procedure to tighten the rocker arm nuts and properly center the pushrod on the hydraulic lifter:
  1. To prepare the engine for valve adjustment, rotate the crankshaft until the mark on the damper pulley aligns with the 0? mark on the timing plate and the No. 1 cylinder is on the compression stroke. You will know when the No. 1 piston is on it's compression stroke because both the intake and exhaust valves will remain closed as the crankshaft damper mark approaches the timing scale.

Another method to tell when the piston is coming up on the compression stroke is by removing the spark plug and placing your thumb over the hole, you will feel the air being forced out of the spark plug hole. Stop turning the crankshaft when the TDC timing mark on the crankshaft pulley is directly aligned with the timing mark pointer or the zero mark on the scale.
The valve arrangement is as follows:



E-I-I-E-I-E (right bank-front-to-rear) E-I-E-I-I-E (left bank-front-to-rear)

  1. With the engine on the compression stroke, adjust the exhaust valves of cylinders No. 1, 5 & 6 and the intake valves of cylinders No. 1, 2 & 3 by performing the following procedures:
    1. Back out the adjusting nut until lash can be felt at the pushrod.
    2. While rotating the pushrod, turn the adjusting nut inward until all of the lash is removed.
    3. When the play has disappeared, turn the adjusting nut inward 1 3 / 4 additional turns.

  2. Rotate the crankshaft one complete revolution and align the mark on the damper pulley with the 0? mark on the timing plate; the engine is now positioned on the No. 4 firing position. This time the No. 4 cylinder valves remain closed as the timing mark approaches the scale. Adjust the exhaust valves of cylinders No. 2, 3 & 4 and the intake valves of cylinders No. 4, 5 & 6, by performing the following procedures:
    1. Back out the adjusting nut until lash can be felt at the pushrod.
    2. While rotating the pushrod, turn the adjusting nut inward until all of the lash is removed.
    3. When the play has disappeared, turn the adjusting nut inward 1 3 / 4 additional turn.

Sep 23, 2010 | 1997 GMC Jimmy

2 Answers

I need rocker torque for 2003 pontiac with 3.1liter


Left side:

To install:
  1. Lubricate all the valvetrain components with engine oil.
  2. Install or connect the following:
    • Pushrods and the rocker arms and tighten the bolts to 14 ft. lbs. (19 Nm) plus 30 degrees
    • Rocker arm cover using a new gasket and tighten the rocker cover bolts to 89 inch lbs. (10 Nm)
    • PCV valve to the rocker arm cover
    • Coolant tube with the thermostat bypass hose and tighten the bolt to 98 inch lbs. (11 Nm) and the nut to 18 ft. lbs. (25 Nm)
    • AIR check valve pipe and torque the adapters to 22 ft. lbs. (30 Nm)
    • Engine mount strut and torque the bolt to 35 ft. lbs. (48 Nm)
    • Spark plug wires
    • Negative battery cable
Right side:

To install:
  1. Lubricate all the valve train components with engine oil.
  2. Install or connect the following:
    • Pushrods and the rocker arms and tighten the bolts to 14 ft. lbs. (19 Nm) plus 30 degrees
    • Rocker arm cover using a new gasket and tighten the rocker cover bolts to 89 inch lbs. (10 Nm)
    • Power brake booster vacuum pipe to the plenum
    • EVAP solenoid and ignition coil assembly
    • Spark plug wires
    • Alternator bracket and torque the bolts to 37 ft. lbs. (50 Nm)
    • Alternator and torque the bolts to 37 ft. lbs. (50 Nm)
    • Accessory drive belt
    • Negative battery cable
  3. Start the vehicle and verify no leaks.

Feb 06, 2010 | 2003 Pontiac Grand Prix

1 Answer

How do I replace the valve spring on 92 Chevy C1500?


Valve springs are most easily changed with cyl head removed. However, You can use a length of closeline (cotton type) fed into spark plug hole, pushing as much as possible into combustion chamber, then GENTLY turning crankshaft by hand so the piston pushes line up against the valves. DO NOT CRANK ENGINE WITH STARTER OR TURN ENGINE FOR ANY REASON TILL THE JOB HAS BEEN COMPLETED AND LINE HAS BEEN REMOVED.
after inserting line, remove the rocker arm from the valve and use a valve spring compressor (the kind that looks like a top terminal battery terminal remover) to compress the valve spring. Remove the two keepers that hold the valve from falling through the retainer (use a magnet and small screwdriver for this) then lift the spring off the valve. Compress the new spring and replace in the reverse order, making sure the keepers stay in slot at valvestem top.Once valve spring has been installed, turn engine backwards to relieve tension on line you installed and remove all of lit from cylinder. Replace rocker, and adjust per specs. (usually 1/4-1/2 turn down after becoming quiet while running)
good luck

Mar 03, 2009 | Chevrolet 1500 Cars & Trucks

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