Question about 1998 Oldsmobile Regency

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Broken belt tensioner. How to replace? - 1998 Oldsmobile Regency

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  • harsola47 Sep 25, 2009

    Thanks for the reply. I have a 3800 V6. Not supercharged. The belt tensioner broke and I am not sure how to replace it. I live in a very small town in Iowa and service is a proble.

    Thanks

  • jesus Rojo May 11, 2010

    Hi what size engine you have and is this supercharge

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  • Expert
  • 173 Answers

HI begin by disconnecting battery , remove alternator then remove the two heater hoses attach to tensioner bracket by removing the to front screws, you will lose coolant so put a pan on the bottom .Then remove bolts attached to tensioner bracket.it will require a little force to pull out yest make sure you got all the bolts out before applying force. Here is a picture tensioner and bracket assembly so you can see what bolts to remove. let me know how it turns out it is not so bad to dobroken belt tensioner. How to replace? - 5e1c732.jpg

Posted on Sep 25, 2009

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SOURCE: re:99-vw beetle, belt tensioner has

For the 2.0 engine.

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Posted on Feb 02, 2009

emissionwiz
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SOURCE: Timing Belt Tensioner bolt broken off.

if this happened you bent the valves in the engine and the cylinder head must be removed, here are full instructions for a timing belt replacement.

Required tools:
13mm open end wrench 10mm shallow and deep socket 8mm socket long flathead screwdriver 17mm deep socket T50 torx socket 1/4", 3/8ths and 1/2" ratchets and extensions E10 inverted torx sockets 6mm Allen wrench 15mm open end wrench 7mm socket 12mm open end wrench 14mm socket 12mm socket 8mm, 9mm and 10mm Allen head sockets 19mm socket pry bar needle nose pliers
If you are doing this because your timing belt broke you will also need to buy a complete cylinder head, head gasket set, and both idler pulleys. ALL DAEWOO MODELS WILL BREAK THE INTAKE AND EXHAUST VALVES WHEN THE TIMING BELT BREAKS.
Start by removing the air cleaner assembly from the throttle body, remove the air filter and housing jack up the vehicle and remove the wheel, remove the plastic shielding in front of the accessory drive belt assembly, remove the accessory drive belt, place a jack with a block of wood on top underneath the engine oil pan remove the front engine mount, remove the crank shaft pulley ( the 4 Allen head bolts only not the 17mm bolt in the center.) remove the metal plate behind the engine mount bracket on the engine, remove the plastic timing belt cover 3 clips on top 2 10mm bolts on bottom. Rotate the engine until the #1 cyl. is at Top Dead Center on the compression stroke or line up the crankshaft timing mark with the mark on the inner timing belt cover ( notch in cover with notch in pulley) on the camshaft pulleys -- ( intake cam line up the line on the pulley with the line on the inner cover)( exhaust cam line up the arrow on the pulley with the arrow on the inner cover) loosen the 13mm bolt in the belt tensioner and using the Allen wrench rotate the tab until there is slack in the belt. Remove the belt. At this time I would recommend you replace the water pump, both plastic idler pulleys as they tend to overheat and lockup, and the belt tensioner. Make sure all your marks are lined up, you may need a helper to hold the Exhaust Cam in place as it tends to move during belt installation. Put the timing belt underneath the crankshaft pulley, install the belt leaving the intake cam for last and NO BELT SLACK on the right side between the crank and the exhaust cam. Once the belt is installed rotate the crankshaft over 2 revolutions and make sure is rotates freely, and your timing marks are aligned perfectly if not the engine will not run properly, tension the belt as needed. Installation is the same as removal.

To clarify, on the DOHC engine, the intake cam gear has a line on it, and the exhaust cam gear has an arrow on it. These should be lined up with the corresponding line and arrow on the VALVE COVER, pointing straight up. I just went through this process over the weekend, and spent quite a bit of time looking for these marking as I had removed the valve cover. Once I found them, it was plain and simple.
In addition, be sure to not over tighten the belt when reinstalling. The tensioner has markings on it for "old" and "new". DO NOT adjust past "new", as the car will sound like a jet engine, and the belt will not last for very long.
One more item that you may as well replace while you are in there is the cam position sensor if you have not already, as there have been issues with them, and the timing housing has to be opened to get to it

Posted on May 26, 2009

  • 112 Answers

SOURCE: TENSIONER bolt has broken off of the TENSIONER pulley

your daewoo does not have an interference engine which means that if timing belt slips or breaks there wont be any valve or piston damage

Posted on May 26, 2009

  • 312 Answers

SOURCE: My serpentine belt came off but not broken, do i

When you get the new belt compare it's length to the old belt. Belts will stretch over time but usually not enough to cause them to pop off. Chances are the pulley is going bad. If you can move the tensioner with your hand it's time to change it.

Posted on Jan 15, 2010

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