Question about Volvo XC70

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How do you change the water pump in a 2004 volvo xc70? Also, what is the bolt size and type that holds the front caliper bracket in blace?

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  • spaquette Oct 01, 2010

    One other thing...do you have a diagram of the timing belt, tensioner, idler and waterpump?

  • spaquette Oct 01, 2010

    This is even better than a diagram.

    Thank you very much.

    I will let you know how it goes.

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Replace the water pump with the new one. The OEM water pump appears to have had a dry gasket. That is just fine when you are installing it out of the car but you need to thread the pump around a number of things to get the replacement back on. A very thin layer of blue RTV on both sides of the gasket to hold it in place on the locator pins on the block. Hand start each bolt to make sure the gasket is aligned. Then tightened the bolts to snug in a star pattern to draw the pump into position on the locator pins. Using the same star pattern torque the water pump bolts to 15 lb/ft on each bolt. You will need to change between a deep 10mm socket and a small 10mm socket as well as from the top and the bottom to get all of the bolts torqued correctly.

lift the upper portion of the rear cam cover and thread the belt onto the exhaust cam sprocket. It will not be as taught as the belt is from the crankshaft to the intake cam but it should not be loose. From there roll the water pump sprocket until the slack is out of the belt from the exhaust cam to the water pump.

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Its always recommended that while replacing timing belt always replace the water pump.But if you want to replace water pump only on your car,i will give more details with timing belt and water pump replacement:---

Read the procedure as follows:---

1: Block the rear wheels and set the parking brake.2: Remove the air guide from the bottom of the car. it is either a 10mm or a 12mm. There are two bolts that hold the air guide on.3: Jack up the front drivers side of the car until you can slide a 5 gallon bucket under the radiator.4: Remove the lower radiator hose and drain the coolant into the bucket.

5: While the coolant is draining use a T-30 Torx to remove the spark plug cover. If you have a turbo some extra long extensions help to get around the turbo pipes.6: Remove the spark plugs. A 6"extension plus a 3" extension, stacked together, is very helpful on cylinders 4 and 5 to get around the turbo pipes.7: Use a T-25 Torx to remove the fuel line clamp.8: If you plan to reuse the serpentine belt mark its original direction of travel so that you can put it back on in the same direction.9: Remove the serpentine belt.The serpentine belt tensioner has a dog ear with a hole in it and there is a corresponding hole behind the tensioner where the entire assembly can be locked. I used a small Allen wrench to lock the tensioner.Use a 12 mm socket to remove the front timing belt cover.10: Loosen the (US) passenger's side lug bolts.
11: Re-attach the lower radiator hose and tighten the hose clamp, move the jack to the (
US) passenger's side of the car and jack the car up. Remove the wheel and place a jack stand under the sub-frame.12: Remove the plastic nut that holds the inner wheel well flap. A pair of vice grips to hold the flap back is helpful at this point.13: Use a 30mm socket to rotate the crankshaft, clockwise, until your timing marks align.14: Use a 10mm socket to remove the lower timing cover.

15: Flex the fuel lines away and with a 10mm deep socket remove the bolts to the upper portion of the rear timing belt cover.16: Use a 12mm socket to loosen the upper and lower bolts on the tensioner. Next completely remove the upper tensioner bolt with a short 12mm socket and slide the tensioner toward the back of the car. Use a deep socket to remove the lower bolt from below. At this point you can remove the tensioner.17: You can either fight the old timing belt off around the bottom of the crankshaft or just cut it in half.18: Once the belt is removed use a 12 mm deep socket to remove the idler roller. It has 2 bolts.19: This is the tricky part due to the lack of clearance. You need to use a T-45 to remove the trensioner roller assembly but there is not sufficient clearance between the bolt on the roller and the inner wheel well to get a ratchet and the T-45 bit in place. you can use a T-45 with a hex shank, a 5/16" combination wrench, and a pipe to get it off. Once the rollers are removed you can change water pump.

Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Oct 01, 2010

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    120334720


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