Question about 2004 Chevrolet Blazer

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Trying to replace the timing belt cover gasket. I don't have air tools. How do I break the bolt loose without messing anything up? Which bolt do I take out first

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  • ricks auto tech Sep 02, 2010

    the bolt on the crank or the ones on the cover



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If you see oil from the timing cover, you've got bigger problems. Regardless, rust penetrant never hurts. Diff tricks for busting stubborn fasteners:
-Tighten a smidge before trying to loosen. (busts loose rust)
-Without damaging the head, sharply tap the head with a suitable size hammer.
-6 point bites better than 12 pt
-Always enure you've got a good bite and watch your knuckles.
Those bolts aren't that tight anyway, you'll get it.

Posted on Sep 04, 2010


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How hard is it to replace water pump

Replacing the water pump is very easy. I have done it a few times. I have owned a total of four full-size GM cars; a 1992 Oldsmobile Eighty-Eight, a 1989 Buick LeSabre, a 1999 Pontiac Bonneville, and my current 2001 Buick LeSabre. Here is a description of how it all fits together. The water pump is aluminum and is bolted to the timing chain cover, which is also aluminum, and which contains the oil pump, oil pressure sending unit, and oil filter base. The timing chain cover contains three coolant passages, one inlet and two outlets. The inlet passage connects to the lower radiator hose. Since the radiator hose connects to the timing cover and not to the pump itself, you do not have to remove the hose. Each outlet passage goes to one side of the block. On 1990's models, the front engine mount bolts on over the water pump, and replacing the pump requires you to support the engine and remove the mount. 1980's models have all the engine mounts at the bottom, and 2000 and later models have the front mount bolted to the cast aluminum oil pan. Besides a new water pump and gasket, you will need Permatex High Tack gasket sealant, Permatex #2 sealant, Blue Loctite, a socket set, a gasket scraper or razor blade, a torque wrench, a drain pan to catch the coolant, and new coolant. Before you replace the water pump, flush the cooling system out in the driveway. Then drain out as much water as you can outside and push the car into the garage, or fill the radiator with water and drive the car in and drain it in the garage. Begin by loosening the four bolts that hold the water pump pulley to the pump, but leave the belt on as it will help hold the pulley still while you break the bolts loose. After you have loosened the pulley bolts, remove the serpentine belt. Draw a routing diagram if there isn't one under the hood. Now remove the bolts and the pulley. With the belt and pulley off, the pump is fully accessible. Remove the eight bolts and the pump. DO NOT loosen or remove any timing cover bolts. Some of the bolts are short and thread into the timing cover, and some are long and go clear through the cover and thread into the block. If the pump is stuck to the timing cover, first make sure all the bolts are out. If you are unsure, look at your new pump (you bought one before trying to remove the old one, right?) and observe where the bolt holes are and compare to the old pump. If the pump still won't come off, hit the edge of the drive flange (the round part that the pulley bolts onto) with a soft-faced hammer and the pump should break loose. If that doesn't work, insert a pry bar between the pump and the drive flange, NOT between the pump and the timing cover, and pull toward you. Now, you must scrape the gasket surface of the timing cover completely clean and smooth. I like to use a razor blade. A long-handled scraper is safer for you but more likely to dent or gouge the aluminum. DO NOT use a wire brush or sandpaper. While it is a little dangerous to hold a razor blade in your fingers while scraping a gasket, it forces you to work slowly and carefully. Hold the blade as flat as possible to the surface and start at the edge of the gasket, lifting the gasket off as you go. Don't try to shove the blade through the middle of the gasket. You will slip, slice your fingers, and damage the surface. OUCH! Clean the bolts thoroughly with a wire brush. Remove all traces of rust and sealant. Now check the threads in the timing cover and engine block. Clean them with a long, thin wire brush such as a gun-cleaning brush, or a tap. You will notice that the holes that go through the cover into the block go all the way into the water jacket. Sealant must be applied to these bolts or they will leak and corrode. That's why it's important to clean them. Clean the gasket surfaces of the timing cover and the new water pump with brake cleaner. Now, coat the gasket surfaces with a thin layer of Permatex High Tack. Place the new gasket on either the timing cover or the new water pump, The High Tack will hold it in place. Coat the threads of the bolts with Permatex #2. Slip a couple of bolts through the pump and install the pump, making sure the correct bolts go into the correct holes. Torque the long bolts to 22-29 ft-lbs and the short bolts to 8 ft-lbs. Reinstall the pulley, using blue Loctite on the bolts. Reinstall the belt and torque the pulley bolts to 10 ft-lbs. Refill the cooling system and you are done. I hope this helps you, and remember, don't ever be afraid to fix your own car. Just make sure you understand what you're doing, work safely, and use the right tools.

Nov 26, 2012 | 2001 Buick LeSabre

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Change head gasket on 65 mustang 200

Drain antifreeze -DON"T POUR IT DOWN A STORM DRAIN - then remove valve cover, Remove exhaust from head assembly. On this engine the head is also the intake manifold - it's cast as a unit. Remove carb and remove heater hoses from carb base plate. Remove head bolts and discard. Break head loose from block - may have to smack it a time or two to break gasket loose. Get a buddy to help lift the head off the block - it's fairly heavy. Clean gasket surfaces on both head and block. Install new gasket onto block - pay attention to gasket orientation - it goes on only one way correctly. Reverse procedure to re-install - USE NEW HEAD BOLTS! Silly to try to save $20 bucks on bolts and ruin an engine.

May 05, 2012 | 1966 Ford Mustang

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How long it takes to install water pump in 1999 chrysler 300m

Find my notes on removing a radiator, and change headlamps, then we'll go from there:
Using a harmonic balance puller rented from your local parts store, remove the lower front pulley. (remove the belts first, you know).
Remove the timing belt covers. Bag any small loose parts and name them (Pulley, alternator bolts, etc.) Remove the timing belt tensioner on the lower left side of the engine as you face it. Remove the timeing belt. The water pump is the large pulley in the middle of the front section of the engine. there are about 6 bolts there to remove it. Make note of exactly which bolts on the pump came from where... Use a piece of cardboard and mark each location on it (12 o'clock, two o'clock, etc.)
This is important when putting it back together. Clean the surfaces and don't scratch anything. Add a new gasket and the pump. bolt back on and use sealer for the threads of EACH bolt so it doesn't leak later.
Now the hard part: retiming this engine is CRITICAL. TDC on the crank at the oil pump. Use the special MILLER TOOLs to re-time the cams and hold them in place during re-assembly. DO NOT DO THIS JOB WITHOUT THESE TOOLS. The engine will detonate unless this is done correctly.This means disassembling hoses and the EGR on the BACK of the engine to lock these tools and the cams in place until you get the belt back on in the RIGH place. Place the timing belt back on ACCURATELY, re-tension the tensioner (compress the tensioner and hold it with a small drill bit of allen wrench).Put the belt on and pull the pin on the tensioner after you reinstall it. Remove the Miller tools on the back, reinstall the cam plates and EGR valve and hoses, and reinstall everything in reverse of disassembly. Add antifreeze and GO. Also, get a good book on this subject, which includes the Miller tool part number.
While you are at it, make SURE to replcace the timing belt for 30 bucks or so. You'll be glad you did.

Oct 13, 2011 | 1999 Chrysler 300M

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Oil Is Leaking Out Under The Harminc Balancer On my 92 Jeep Wrangler,4.0 6cyl. I Replaced The Main Seal & Put A New Balancer On & It Still Leaks From The Bottom Of The Balancer

  1. timing cover is leaking oil betwwen cover and block
  2. Disconnect the negative battery cable.
  3. Remove the drive belt(s), fan and fan shroud. If equipped, remove the accessory drive belt pulley.
  4. Remove the vibration damper retaining bolt and washer. Remove the vibration damper using a suitable puller.
  5. Remove the accessory drive brackets attached to the timing cover.
  6. Remove the A/C compressor, if equipped, and alternator bracket from the cylinder head and move to one side.
  7. Remove the oil pan-to-timing case cover bolts and the cover-to-cylinder block bolts.
  8. Remove the timing case cover front seal and gasket from the engine.
  9. Cut off the oil pan side gasket end tabs and oil pan front seal tabs flush with the front face of the cylinder block. Remove the gasket tabs.
  10. Clean the timing case cover, oil pan and cylinder block gasket surfaces.
  11. Remove the crankshaft seal oil seal from the cover by prying it out with a suitable tool.

To install:

  1. Install a new seal in the timing cover using a suitable seal installation tool.
  2. Apply sealer to both sides of the replacement cover gasket and position the gasket on the cylinder block. Cut the end tabs off the replacement oil pan gasket corresponding to those cut off the original gasket. Attach the end tabs to the oil pan with sealer.
  3. Coat the front cover seal end tab recesses generously with sealer and position the seal on the timing cover.
  4. Apply engine oil to the seal-oil pan contact surface, then position the cover on the cylinder block.
  5. Insert timing case cover alignment tool J22248 or equivalent, in the crankshaft opening. Install the cover-to-cylinder block bolts and tighten them to 62 inch lbs. (7 Nm). Install and tighten the oil pan-to-cover bolts to 11 ft. lbs. (13 Nm).
  6. Remove the cover alignment tool and position a replacement oil seal on the tool with the seal lip facing outward. Apply a light coat of sealer to the seal and a light coat of oil to the crankshaft. Install the seal on the timing cover.
  7. Apply a light film of oil to the vibration damper hub seal contact surface. Install the vibration damper using a suitable installation tool.

Do not hammer the damper into place as damage may result to the damper or engine.

  1. Install and tighten the crankshaft vibration damper bolt to 80 ft. lbs. (108 Nm).
  2. If equipped, install the crankshaft pulley and tighten the bolts to 20 ft. lbs. (27 Nm).
  3. Install the accessory brackets.
  4. Install the fan and fan shroud.
  5. Install the drive belt(s) and adjust to the proper tension.
  6. Connect the negative battery cable.
  7. Start the engine and check for leaks
  8. .

Jan 18, 2011 | 1992 Jeep Wrangler

1 Answer

Trying to remove the water pump on a 1994 mitsubishi mirage

All Mitsubishi cars pretty much hide the water pump under the timing belt. You should buy all new belts for the car and if you have 150,000+ miles consider replacing the water pump at the same time.
You will have to take off the power steering belt .
First , take off the negative battery cable so you do not blow an expensive fuse on the positive battery cable clamp. Facing the back of the car , reach UNDER the alternator and loosen the bolt on the bottom right side, now loosen the bolt on the adjuster block on top, you can now turn the adjuster bolt and move the alternator to change the belt.
To take off the steering pump belt on the front of the motor, you need to loosen the nut on the back side of the pulley it holds the adjuster pulley in place . With the adjuster pulley loose , you can use the adjuster bolt to move the pulley to adjust/take off the steering pump belt.
Now take off the upper belt cover, support the motor, take off the motor mount, jack up the right front corner of the car, take off the front right tire, take off the engine plastic under cover.
Line up the TDC timing mark on the cover to the mark on the pulley, take off the lower pulleys (use an air gun and impact socket),
take off the lower engine cover, observe the timing marks/arrows and highlight with paint (crank marks and cam marks should all line up if not , rotate the crankshaft one full turn.), loosen the timing belt tensioner pulley ,take off the timing belt, counter balancer belt if there is one. Now you can unbolt the water pump, scrape the gasket, and replace it.
The good news is, if you have tools,a compressor, an air gun(for lower pulley bolt), patience , and four to eight hours to kill, you can actually save money and do it your self.

Jan 15, 2011 | 1994 Mitsubishi Mirage

1 Answer

Trying to replace waterpump on a 96 suzuki swift but cant get the bottom pully off to remove the timing cover to get at the waterpump off. we cannot get a good angle to crack the nut. the frame is in the...

  1. Remove air filter to give you more room to play
  2. Loosen alternator and alternator tensioner. Alternator tensioner bolts to water pump so that bolt will need to come out.
  3. With the alternator loose, the main drive belt should be loose and be able to be removed, do this.
  4. Loosen the tensioner bolt for the air conditioner, on the underside of the engine. Losen the nut on the air conditioner tension wheel. The tensioner wheel should now slide up and down freely, allowing removal of the air conditioner belt.
  5. Remove the 4 x 10mm bolts on the water pump pulley. Remove the water pump pulley.
  6. Remove the 4 x 10mm bolts on the camshaft pulley. This is the main pulley that all the belts connect to. There is a large 17mm bolt in the middle of this pulley that does not need to be removed. (Crankshaft Bolt).
  7. The camshaft pulley should slide off, however you will probably have no clearance (because of the crankshaft bolt) to remove the pulley. The pulley has to be removed.
  8. Place a jack under the sump, use a piece of wood to protect the sump. Jack the sump up 1/2 inch. Undo the two 14mm bolts in the engine mounts. When the two left hand engine mount bolts are out, lower the jack slowly until you can slide the camshaft pulley out.
  9. Remove the plastic timing belt cover.
  10. You should now see the timing belt, remove the timing belt tensioner pulley, being careful not to move the timing belt wheels.
  11. Undo the bolts holding the water pump.
  12. Water pump should come off, water will come out if you haven't drained it.
  13. Scrape off gasket.
  14. Install new water pump.
  15. Reassemble in reverse order.

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Dec 15, 2010 | 1996 Suzuki Swift

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.
  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

1 Answer

Changing the water pump on 2000 Jeep Grand Cherokee V6

The water pump is bolted directly to the engine timing chain case/cover.

A gasket is used as a seal between the water pump and timing chain case/cover.

If water pump is replaced because of bearing/shaft damage, or leaking shaft seal, the mechanical cooling fan assembly should also be inspected. Inspect for fatigue cracks, loose blades, or loose rivets that could have resulted from excessive vibration. Replace fan if any of these conditions are found. Also check condition of the thermal viscous fan drive. Refer to Viscous Fan Drive in this group.

The water pump can be removed without discharging the air conditioning system (if equipped)

Disconnect negative battery cable from battery.
Drain cooling system. Refer to Draining Cooling System in this group.
Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse.

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. Using special tool spanner wrench 6958 with adapter pins 8346 and a suitable fan wrench loosen the fan drive Viscous Fan and Fan Drive Do not attempt to remove fan/viscous fan drive assembly from vehicle at this time.

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.

If water pump is being replaced, do not unbolt fan blade assembly from thermal viscous fan drive.
Remove two fan shroud-to-radiator nuts Fan Shroud Mounting Hardware Do not attempt to remove fan shroud at this time.
Remove fan shroud and fan blade/viscous fan drive assembly from vehicle as a complete unit.
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.
Remove accessory drive belt as follows: The drive belt is equipped with a spring loaded automatic belt tensioner. Relax tension from belt by rotating tensioner clockwise (as viewed from front) Automatic Belt Tensioner - When all belt tension has been relaxed, remove accessory drive belt.
Remove lower radiator hose clamp and remove lower hose at water pump.
Remove seven water pump mounting bolts and one stud bolt
CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.

Remove water pump and gasket. Discard gasket.
Clean gasket mating surfaces.
Using a new gasket, position water pump and install mounting bolts as shown. Water Pump Installation - Tighten water pump mounting bolts to 54 N·m (40 ft. lbs.) torque.
Spin water pump to be sure that pump impeller does not rub against timing chain case/cover.
Connect radiator lower hose to water pump.
Relax tension from belt tensioner Automatic Belt Tensioner - Install drive belt
CAUTION: When installing the serpentine accessory drive belt, belt must be routed correctly. If not, engine may overheat due to water pump rotating in wrong direction. Refer to Belt Routing for correct belt routing. Or, refer to the Belt Routing Label located in the engine compartment. The correct belt with correct length must be used.

Position fan shroud and fan blade/viscous fan drive assembly to vehicle as a complete unit.
Be sure the upper and lower portions of the fan shroud are firmly connected. All air must flow through the radiator.
Install two fan shroud-to-radiator nuts Fan Shroud Mounting Hardware
Be sure of at least 25 mm (1.0 inches) between tips of fan blades and fan shroud.
Install fan blade/viscous fan drive assembly to water pump shaft.
Fill cooling system. Refer to Refilling the Cooling System in this group.
Connect negative battery cable.
Start and warm the engine. Check for leaks

Jan 10, 2009 | 2000 Jeep Grand Cherokee

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