Question about 1996 Oldsmobile Cutlass Supreme Coupe

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Replacing the air conditioning unit with a bypass pulley. where do i start?

The motor configuration. and what tools are needed to at attach a bypass pulley

Posted by David Donaldson on

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Electric Dime

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Why do you want to bypass it? Is the unit froze up? If not, try unplugging the unit form the electrical source. It should still turn but not kick in unless the compressor is froze.

Posted on Dec 06, 2011

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How do you remove Idler pulley?


usually fastened to motor with either a bolt that goes through the pulley/bracket into the motor, or a nut that fastens it to the motor. no special tools needed.

Sep 11, 2015 | 2006 Chrysler 300 Touring

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How do i remove the drive belt on a 2006 Toyota Solara?


Serpentine belt replacement is not complicated and requires only one tool. Find the tension pulley located at the bottom of the motor. This pulley is attached to a very strong spring and holds the belt tight against the pulleys through its serpentine route around the engine. Use a socket wrench with a matching socket the same size as the hex head bolt in the center of the tension pulley. Attach the socket and set the direction to tighten the same direction the spring action allows the pulley to move. Turn the wrench handle, the pulley moves and the tension on the belt slackens. Take the belt off the pulley and let it hang. 
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Good Luck!!
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Nov 22, 2013 | Cars & Trucks

1 Answer

Tried to replace my ac pully with a bypass pully removed all the bolts and I still can't get it budge to remove it.. I say for an hour trying but no luck help?


If you are installing a bypass pulley it will eliminate the A/C compressor thus eliminating your A/C. With that being said, you need to evacuate the system. (If there is anything in it), Remove the whole A/C compressor from the car and then install the bypass pulley where the compressor would mount to the engine. If you are trying to remove the pulley on the A/C compressor to replace it then you will need a special tool (A/C Clutch Pulley Puller) that is usually available at most auto parts store on the "Loan a Tool" programs.

Jul 10, 2013 | Cars & Trucks

1 Answer

2002 dodge stratus making very loud noise sounding like metal to metal seeing metal shavings on underpin near ac unit. i can visually see the ac pulley wiggling very hard and that is where the noise is...


There are two companies that I've heard of that make a bypass pulley. One is Dorman the other I can';t remember. Both require that the compressor be removed and the pulley replaces it so you can run the same belt and configuration. You'd need to check with your local parts house to see if they make one for your engine. Most factory systems don't allow for a bypass... the belt usually ends up hitting something and not working.

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1 Answer

Replacing water pump


This is for the 3.9 v6 you did not specify motor size.
Hope this helps, it it does please leave feedback Thank You and Good Luck


The water pump can be removed and installed without discharging the air conditioning system (if equipped).
  1. Disconnect battery negative cable.
  2. Drain cooling system.
  3. Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.
WARNING: CONSTANT TENSION HOSE CLAMPS ARE USED ON MOST COOLING SYSTEM HOSES. WHEN REMOVING OR INSTALLING, USE ONLY TOOLS DESIGNED FOR SERVICING THIS TYPE OF CLAMP, SUCH AS SPECIAL CLAMP TOOL (NUMBER 6094). SNAP-ON CLAMP TOOL (NUMBER HPC-20) MAY BE USED FOR LARGER CLAMPS. ALWAYS WEAR SAFETY GLASSES WHEN SERVICING CONSTANT TENSION CLAMPS.

CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.


  1. Remove upper radiator hose clamp and hose at radiator.
Fan Blade And Viscous Fan Drive-3.9L/5.2L/5.9L Engines 81898572


  1. The thermal viscous fan drive is attached (threaded) to the water pump hub shaft. Remove fan/viscous fan drive assembly from water pump by turning mounting nut counterclockwise as viewed from front. Threads on viscous fan drive are RIGHT HAND. A Snap-On 36 MM Fan Wrench (number SP346 from Snap-On Cummins Diesel Tool Set number 2017DSP) can be used. Place a bar or screwdriver between water pump pulley bolts to prevent pulley from rotating. Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.
  2. If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
  3. Remove fan shroud attaching hardware (two bolts at bottom-two clips at top).
  4. Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
  5. After removing fan blade/viscous fan drive assembly, do not place thermal viscous fan drive in horizontal position. If stored horizontally, silicone fluid in viscous fan drive could drain into its bearing assembly and contaminate lubricant.
  6. Do not remove water pump pulley bolts at this time.
Automatic Belt Tensioner Assembly-3.9L/5.2L/5.9L Engines 81898573


  1. Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front). When all belt tension has been relaxed, remove accessory drive belt.
  2. Remove four water pump pulley-to-water pump hub bolts and remove pulley from vehicle.
  3. Remove lower radiator hose clamp and remove lower hose at water pump.
  4. Remove heater hose clamp and heater hose from heater hose coolant return tube.
Coolant Return Tube-3.9L/5.2L/5.9L Engines-Typical 81898574


  1. Loosen heater hose coolant return tube mounting bolt and remove tube from water pump. Discard the old tube O-ring.
Water Pump Bolts-3.9L/5.2L/5.9L Engines 81898575


  1. Remove seven water pump mounting bolts.
  2. Loosen clamp at water pump end of bypass hose. Slip bypass hose from water pump while removing pump from vehicle. Discard old gasket.
CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.


Belt Routing-3.9L/5.2L/5.9L Engines 81898576

Jan 01, 2011 | 1999 Dodge Durango

1 Answer

Timing chain is loose how do I replace or tighten


You need to pull out the timing cover. 4-6 hours of work. Here is the step to remove the Cover, then you need to remove the Sprockets.
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  1. Remove the oil pan.
  2. Remove the power steering belt if so equipped.
  3. Remove the air conditioning belt, compressor and bracket if so equipped.
  4. Remove the fan clutch (fluid coupling), with the fan and water pump pulley.
  5. Matchmark and remove the crankshaft pulley(s). This bolt will be very tight. Use the counter-holding bar, properly installed, to hold the crankshaft while loosening the bolt. Use the pulley extractor or gear puller to remove the pulley from the shaft.
  6. Remove the water bypass pipe.
  7. Remove the fan belt adjusting bar. If necessary, remove the lower power steering bracket for access.
  8. Disconnect the heater water outlet pipe.
  9. Unbolt the timing chain cover assembly. Be careful to loosen only the correct bolts.

To install:
  1. Install new gaskets over the dowels on the timing chain cover. Slide the cover assembly over the dowels and pump spline. Insert the retaining bolts and tighten them. Tighten the 8mm bolts to 9 ft. lbs. (13 Nm) and the 10mm bolts to 29 ft. lbs. (39 Nm).
  2. Temporarily install the adjusting bar to the alternator. Install the adjusting bar to the chain cover and tighten the bolts to 9 ft. lbs. (13 Nm).
  3. Install the heater water outlet pipe.
  4. Install the water bypass pipe.
  5. Install the crankshaft pulley and bolt. Use the counter-holding tool to hold the pulley and tighten the bolt to 116 ft. lbs. (157 Nm). If equipped with air conditioning, install the second crankshaft pulley.
  6. Install the water pump pulley and fluid coupling with the fan.
  7. Adjust the tension on the drive belts.
  8. Install the air conditioning compressor bracket, compressor and belt if they were removed.
  9. Install the power steering belt and adjust it.
  10. Attach the oil pan.
  11. Install the radiator.

Jun 04, 2010 | 1987 Toyota Pickup

2 Answers

I want to bypass my AC on a 4.3 Chevy motor. I do not want to remove the compressor as I plan on repairing it later. What pulley do I need to put on the engine below the compressor ?? With that pulley in...


There is a pulley that fits where the compressor is mounted. This means that the compressor would have to be removed and the a/c hoses would have to be sealed.

Oct 15, 2009 | 1996 Chevrolet Blazer

1 Answer

Serpentine belt changing pattern


This configuration eliminates one idler pulley, and one that is difficult to change also. Since many of the idler pulleys have a relatively short life eliminating one will save you money and aggravation.

Feb 04, 2009 | 1997 Saab 900

2 Answers

Honda accord ex 92


Crankshaft pulley (harmonic balancer) removal- disconnect neg battery cable, remove belts, it would be a good idea to soak the bolt w/ penetrating oil overnight, there is a special 'crankshaft pulley holding tool' available to secure the pulley while removing and installing the bolt. Some parts stores loan tools for free if u purchase parts from them, I don't know if this is available, but it would be worth checking out. Attach holding tool and remove bolt securing pulley. Carefully remove pulley from crankshaft, Do NOT pry off. Remove key from crankshaft sprocket,
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Nov 11, 2008 | 1992 Honda Accord

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