smog pump removal
04-22-2002, 08:28 PM
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smog pump removal
i recently removed the smog pump of my 91 bird. now when im at an idle since the pump is removed the belt hums. it doesnt cause any problems but its iritating as hell. does anybody know if someone makes some sort of idler pulley to take place of the smog pump so my belt wont humm?
04-28-2002, 12:18 PM
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yes i did reroute the belt like the tech article said. the belt still hass good tension on it its only been like 8-10 months since i removed the smog pump it never hummed till after winter when i started to use my a.c.
04-28-2002, 12:32 PM
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it may not be the belt humming at all. it may be one of the accessory drives. you say it started when you started using your A/C. maybe that is going bad. it may also be the water pump. take the belt off and spin the waterpump and see if it makes noise. also try the alt, and PS pump pulley. try getting another belt to see if it still does it. return the belt if it isnt it
04-30-2002, 09:30 PM
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i noticed the belt only humms when im idling and my ac is on. if i turn the ac off it stops humming. when it firts started humming i popped the hood and saw the belt vibrates about 2 inches back and forth. and now my ac clutch is making a horrid *** noise.
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05-03-2002, 09:21 PM
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Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
hmmm... sounds like the ac compresser is starting to go. If teh belt has a good deal of tension and the tensioner is fine, the bad compressor may be generating vibrations that that excite the belt to cause it to vibrate like that. More likely a bad compressor/clutch/auto tensioner but just a thought.
05-07-2002, 09:58 PM
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i thought it might be the new belt routing putting extra preasure on my compressor. if so do you or anyone else know if there is some sort of idler pulley that takes the place of the smog pump that will allow me to run the factory belt routing but still have the extra horses?
05-08-2002, 05:50 PM
#11
there is an idler pilley to put in the smog pumps place that will allow you to keep the stock belt route. i do not know where you can get one though. i sen one on a car at a local car show here. ask around on here you will get an answer. I have been running the modified belt route on my z28 for about 2 years now and have had no problems at all.
05-09-2002, 12:35 PM
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thanx as long as i know they make one ill look for it. hopefully i can find one before my compressor goes to hell. if you know of anyone or anywhere that has one please let me know.
05-10-2002, 04:26 PM
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Car: yy wife, crazy.
Engine: 350, Vortecs, 650DP
Transmission: TH-350
Axle/Gears: 8.5", 3.42
You can put the pump back on. It doesn't have to have the hoses going to it for it to spin. It'll still pump air, but it won't hurt anything. It's only slightly larger than any bracket that you'll need there to hold a dummy pulley.
The main reason you pulled it was to get rid of all the damn hoses, right? That's why I did it. So just putting the pump back on will still leave the engine the way you want it.
AJ
The main reason you pulled it was to get rid of all the damn hoses, right? That's why I did it. So just putting the pump back on will still leave the engine the way you want it.
AJ
05-29-2002, 05:01 PM
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try gm# 10129569 (ramjet serpentine smog pump delete pulley/idler) or gm# 10186167 (9C1 caprice export eliminator idler pulley). Last edited by limey; 05-29-2002 at 05:04 PM.
06-05-2002, 05:17 PM
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This isn't much help but may car is doing the same thing. I have not removed my smog pump though. I noticed that it makes the same humming noise with the defrosters on also and like you said it only happens when the car is idling. I havn't found a soulution other than not running the AC or defrost. I guess I'm letting you know this before you spend time or money putting the smog pump back or finding another pully.
06-05-2002, 09:59 PM
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hmm my car never started humming till a year after i removed the smog pump so i attributed this to my removing the smog pump and having an extra coupkle of inches of belt with nothing to keep it from vibrating back and forth.
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