Question about 1991 Oldsmobile Cutlass Supreme

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New lifters wont pump oil

I have a 99 olds cutlass with 3.1, installed new lifters the center lifters wont pump oil. submerged new lifters in oil before instalation. the lifters on cyl 3 & 4 pump no oil, cyl 1, 2, 5 & 6 pump good. this ones got me stummped

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Ndguy2481's solution stumps me, what is about the balance shaft, looks like a cut and paste without reading the dialog to see if it makes sense for the problem at hand. My suggestion is this, pull the lifters and crank the engine with spark plugs out, see if oil reaches the oil holes to the lifters, also hook up a oil pressure guage to make sure engine is producing adequate oil pressure, I would think 20 PSI at fast crank (plugs out) would be in the ball park, if oil does not shot out the oil gallery holes (and pressure is OK) to the lifters then there is a blockage in the oil distribution holes of the block, good cranking oil pressure will also show that there is no bearing damage that might cause low pressure and lifters not pumping up.

Posted on Nov 20, 2008

  • yadayada
    yadayada Nov 20, 2008

    One other important comment, you don't have a 2.4Liter engine so ndguy2481's solution has absolutely nothing to do with your engine, the rest of the experts should stick with what they know, a bent push rod or defective rocker has ZERO to do with the lifters not pumping up, 30 years of new car dealer work tells me that, I am also an ASE certified Master Technician, and a Ford factory certified master technician.

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NOTE The balance shafts are only found on the 2.4L engine.REMOVAL & INSTALLATION
2.4L Engine
new lifters wont pump oil - 0900c1528009159d.jpgRemove the balance chain timing cover and loosen, but do not remove, the chain tensioner 0900c1528009159e.jpgRemove the balance shaft driven sprocket. Remember that the sprocket bolt is left-hand thread Use the proper tool to prevent the balance shafts from turning while loosening the driven shaft sprocket bolt Remove the balance shaft housing fasteners These marks will line up when the balance shafts are in alignment The balance shaft housing-to-block fastener tightening sequence

  1. Disconnect the negative battery cable.
  2. Remove the oil pan assembly as outlined in this section.
  3. Remove the balance shaft chain cover.
  4. Loosen, but do not remove, the balance shaft chain tensioner.
  5. Remove the oil pump cover and the oil pump assembly.
  6. Rotate the engine until the number 1 piston is at TDC (Top Dead Center).
WARNING The balance shaft driven sprocket bolt is left-hand threaded and must be loosened by turning it in a CLOCKWISE direction. If it is not turned in a clockwise direction, it may break.
  1. Prevent the balance shafts from turning while loosening the driven shaft sprocket bolt.
  2. Remove the sprocket bolt, and matchmark the sprocket to the driven balance shaft. Remove the driven sprocket from the balance shaft.
  3. Remove the balance shaft housing fasteners and remove the balance shaft housing and shaft assembly.
  4. Inspect the balance shafts, bearings and journals for wear and/or damage. Compare to the specifications in the charts at the end of this section.
  5. Measure the gear backlash as specified later in this section. Correct or replace parts if necessary.
To install:
  1. Install the balance shafts and housing assembly onto the engine block.
  2. Apply sealant to the housing-to-block bolts.
  3. Tighten the bolts in sequence to the proper torque values, as shown in the accompanying figure.
  4. Install the balance shaft driven sprocket.
WARNING The balance shaft driven sprocket bolt is left-hand threaded and must be tightened by turning it in a COUNTER-CLOCKWISE direction.
  1. Tighten the sprocket bolt to 22 ft. lbs. (30 Nm).
  2. Hold the balance shafts in the correct "timed" location and align the balance shaft drive chain with the teeth.
  3. Install the oil pump as described in this section.
  4. Install the balance shaft chain tensioner and tighten the bolt to 115 inch lbs. (13 Nm).
  5. Install the balance shaft chain cover.
  6. Install the oil pan using a new gasket.
  7. Connect the negative battery cable.
INSPECTION
0900c152800915a3.jpgRemove the 8 upper-to-lower balance shaft housing boltnew lifters wont pump oil - 0900c152800915a4.jpgc="http://i.fixya.net/uploads/images/0900c152800915a4.jpg" alt="0900c152800915a4.jpg" class="h_mi" />Inspect the bearings new lifters wont pump oil - 0900c152800915a5.jpg for wear 0900c152800915a5.jpgInstall the 8 upper-to-lower balance shaft housing bolts . . . 0900c152800915a7.jpg. . . then tighten them in sequence to the proper torque values
  1. Remove the balance shaft assembly.
  2. Remove the 8 upper-to-lower balance shaft housing bolts.
  3. Separate the housings and remove the balance shafts.
  4. Remove the bearings and the thrust plate from the housing.
  5. Clean the housing, bearings, shafts, and the thrust plate.
  6. Inspect the housing for:
    • Cracks
    • Scored bearing bores
    • Damaged threaded holes
NOTE If the housings contain damage, replace the entire balance shaft assembly.
  1. Inspect the bearings for:
    • Gouges
    • Scoring
    • Discoloration
  2. Inspect the balance shafts for:
    • Scores or burrs on journals
    • Cracks or missing pieces
  3. Inspect the thrust plate for:
    • Gouges
    • Burrs
  4. Inspect the sprockets for:
    • Bent teeth
    • Broken teeth
    • Chips
    • Ground off teeth
  5. Measure the balance shaft journals for following:
    • Outside diameter
    • Out of round
  6. Measure the bearings for bearing clearance.
  7. Measure the thrust plate thickness.
  8. Measure the gears backlash using a dial indicator.
WARNING If one balance shaft needs replacing, they both must be replaced. Always replace the bearings when replacing the balance shafts.
  1. Compare all the measurements to the specifications in the charts at the end of this section. Replace any component(s) that are out of specification.
To install:
  1. Install the bearings into housings and install the balance shafts.
  2. Install the thrust plate and tighten the retaining bolts to 115 inch lbs. (13 Nm).
  3. Verify the proper gear backlash using a dial indicator.
  4. Install the upper and lower housings together and tighten the 8 upper-to-lower balance shaft housing bolts in sequence and to the proper torque values as shown in the accompanying figures and the chart at the end of this section.
  5. Install the balance shaft housing onto the engine block.

Posted on Nov 20, 2008

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Yes it could be a lifter but it could also be a bent push rod or a bad rocker its self.
If its a lifter you have to pull the head off ( expensive fix) if its a push rod or a rocker those can be fix just by taking the valve cover off and removing the defective rocker or push rod.

Posted on Nov 20, 2008

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This has me stumped also, maybe you have to take this car to be looked at by a professional!


regards

Posted on Nov 20, 2008

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... then remove the anti-rotation brackets


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