Question about 1992 Chevrolet Lumina

3 Answers

Belt is burning onto the belt tensioner pulley

Belt ended up smoking then finally breaking apart. Put new belt tensioner due to belt was melted to the pulley. Installed new belt. All looked good, but when starting car, the belt started smoking and began to burn onto the belt tensioner pulley and the belt is extremely hot. What is causing the problem and how can I fix it? Thanks

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  • 5 more comments 
  • icntdrve55 Jul 29, 2010

    Thanks for the help. I have one pully that doesnt seem to turn. It is on the lower end next to the A/C compressor pully. When I try to remove the bolt, the pully turns with it but seems like it is attached to something internal. Is this the crankshaft pully? I took a pic of it but unsure how to post it to show what pulley wont turn with my hands. All the other pulley's turn (with the exception of one smooth like pulley that is not ribbed--and it is not the tensioner pulley).

  • icntdrve55 Jul 29, 2010

    How can I post a pic on here?

  • icntdrve55 Jul 29, 2010

    Mustgo---The A/C, nor the defrost was and or is being used. Is there any other way that the compressor would engage and cause the problem?

  • icntdrve55 Jul 29, 2010

    I have tried to post a pic of the smooth pulley that doesnt turn at all. The non-ribbed side of the belt goes under it and over the pulley to the left of it. Is the smooth pulley supposed to turn. What is the description of that pulley? Thank you all for being patient and helping me out.
    http://i800.photobucket.com/albums/yy288...

  • icntdrve55 Jul 30, 2010

    jsmes--I kind of thought it was the pulley with the water pump and have looked up that wp thru different manufacturers. When i look at the pics of the pulley it looks alot smaller and thinner than what is on the vehicle. I dont want to spend the money on the wp if it is not gonna be the same pulley.

  • icntdrve55 Jul 31, 2010

    I got the wp, in the photo below is the item closest to us a bearing where the pulley in the previous pic goes over? Also, I read that I need to drain the cooling system, is that much of a hassle?
    [IMGhttp://i800.photobucket.com/albums/yy288...[/IMG]

  • icntdrve55 Aug 08, 2010

    Just got the water pump changed. Every pulley is now turning and the car seems to be running great. I didnt drain the radiator, but just pulled the wp off and not much antifreeze leaked out. I did forget to try the heater and check the fluid again, but will do that in a little bit. Thank you all for your help getting to the bottom of my problem. Just hope nothing else goes on it. It only has 58,000 miles on it and is my son's first car from his 97 yr old great grandpa and hope it has many years left in it. Thanks again!

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3 Answers

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  • Master
  • 749 Answers

One of the pulleys is bad and is not spinning.You will need to remove the belt and spin each one to see which one is locked up or very difficult to turn. The only pully you will not be able to turn should the crankshaft pully all others should spin relatively easy.

Posted on Jul 20, 2010

  • 6 more comments 
  • Jonathan S
    Jonathan S Jul 29, 2010

    The crankshaft pully should be the the pully at the bottom of the engine and in the center.The other pully your describing as smooth not grooved is probably an idler pully.They only other smooth pully on that I can recall is the waterpump which should on top towards the front of the engine.

  • Jonathan S
    Jonathan S Jul 29, 2010

    you can upload your photo to photobucket .com and post the url in here.

  • Jonathan S
    Jonathan S Jul 30, 2010

    That is the waterpump not turning.

  • Jonathan S
    Jonathan S Jul 30, 2010

    A very good picture and gets right to the souurce of your issue.Definitely the waterpump.

  • Jonathan S
    Jonathan S Jul 30, 2010

    That particular pulley is held in place by those four 10mm headed bolts.The replacement waterpump is not to costly of a repair. If you remove that pulley there should be 5 5/16 headed bolts holding the waterpump in place.You may need to use a block of wood and a hammer to dislodge the pump after the 5 bolts are removed. Make sure to thoroughly scrape any old gasket material left of the waterpump housing so you do not have a leak after replacing the pump. Usually with the new pump I line the new gasket up on the pump first then apply a thin coat of weatherstrip adhesive to hold the gasket on the waterpump in place while bolting the new pump in.

  • Jonathan S
    Jonathan S Jul 30, 2010

    Best thing to do would be to remove the pulley.The you'll see the the pump is not very big on this particular vehicle. The face of the waterpump once that pulley is removed is about 1/4" thick.The bearings themselves are all housed in the pump and the pump is recessed into a housing.

  • Jonathan S
    Jonathan S Jul 31, 2010

    The bearing should be right where the shaft front part of wp is actually pressed together where the two pieces in the pic actually meet. You can drain it if you can get the pit **** open.If you don't I would advise putting a catch pan underneath where you will be working to catch the antifreeze. If the antifreeze is still good you can reuse it as long as it is not really contaminated.

  • Jonathan S
    Jonathan S Aug 22, 2010

    Good to hear thank you for th great rating and for using FixYa.com Plenty of us are still here and willing to help if another problem arises.

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  • Master
  • 1,608 Answers

It sounds like you have a bearing or pulley that is seized up.Remove the belt and try turning all the pulleys by hand and see which one is not turning.Let me know what you find good luck.

Posted on Jul 20, 2010

  • Salvador Quintanilla Jul 29, 2010

    Yes the one next to the a/c compressor is the crank shaft pulley.When you turn this one you are turning the whole motor.Sometimes the pulley has to have a load on it for it to bind.What you might have to do is install the belt and have someone start the vehicle and while it is running you will need to look and see if you can see what pulley is causing the problem.Could be either and idler pulley,tensioner.or the alternator.Let me know what you find.

  • Salvador Quintanilla Aug 03, 2010

    I checked out your picture and yes this is the water pump pulley.You will need to replace the water pump.As far as draining the cooling system what I did was first make sure the system is cooled down and remove the hose by the water pump.This is the lower hose.The coolant will drain out .Then remove the bolts from the pulley before you remove the belt.This makes it easier to remove the bolts.The pulley will slip some when you go to remove the bolts but they will come off.They are a 10 mm metric bolt.The bolts on the pump are 8mm bolts or 5/16 will work.Make a mark on the old water pump and make a mark on the new one in the same place so you put the new pump in the correct position.Once you get the bolts out make sure and scrape the gasket off.I use a razor blade scraper that works really good.Make sure and do not gouge the gasket surface on the timing cover.Remove the radiator cap and loosen the bleeder screws and fill the cooling system til coolant comes out of the bleeder screws then close them and add til the radiator is full.Put the heater controls on hot and floor heat.start the vehicle and feel til the air starts feeling warm and then hot.Make sure you fill the over flow bottle to the hot mark.Then let it cool down on it`s own for a few hours.The coolant from the over flow will go into the radiator while it is cooling down so once it is cooled down make sure you check the bottle to make sure it is to the cold level when it is cold.Hope this has helped.Thanks for choosing Fixya.Good luck.Let me know if you have any more questions.

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  • Chevrolet Master
  • 2,359 Answers

The air condition A/C clutch is defective.

Buy a bypass pulley system as picture HERE.

Belt is burning onto the belt tensioner pulley - d6d2395.jpg
To bypass the use of the A/C pulley until you has time and resource to replace the A/C compress pump.

DO NOT ATTEMPT to repair the A/C clutch. Just purchase a new ac pump.

Please give me a good rating.

Posted on Jul 20, 2010

  • Vincent_G
    Vincent_G Jul 29, 2010

    Leave A/C off.
    Leave defroster off

    The problem is on the bad compressor. It locks up when the A/C clutch engage.

    That's why I send you the photo of the bypass pulley.


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