Pulley system

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Pulley system #864536 01/28/08 07:00 AM

Joined: Feb 2007

Posts: 29

MadGary

Getting the Wheeling Fever

The pulley system in the engine is squeeling real bad. Where can I get new ones besides the dealership? And how hard is it to replace them myself?

Thanks!

Re: Pulley system [Re: MadGary] #864537 01/28/08 07:12 AM

Joined: Feb 2005

Posts: 7,458

Montero Ranch

rxinhed

Trail Leader

Which pulley is making noise? Is there a replaceable bearing? Make sure it's not just a loose belt. Which engine? <img src="/forums/images/graemlins/confused.gif" alt="" />

<img src="/forums/images/graemlins/kewl.gif" alt="" />

1987 Raider - Roxy
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1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya

Re: Pulley system [Re: rxinhed] #864538 01/28/08 07:19 AM

Joined: Feb 2007

Posts: 29

MadGary

Getting the Wheeling Fever

v6 3.0 engine for a 1990 LS. I do not know which bearing it is, kind of difficult to tell since the noise is so loud. It may be the belt, but I had it replaced about, 3k miles ago. But if the bearing are going bad, where can I order new ones?

Thanks!

Re: Pulley system [Re: MadGary] #864539 01/28/08 07:35 AM

Joined: Feb 2005

Posts: 7,458

Montero Ranch

rxinhed

Trail Leader

If the cause of the noise is a bearing, say in the idler pulley, you'll have to remove the pulley anyway to R7R the bearing or replace the pulley. I would look into a loose belt first, tighten a little if it feels sloppy. Is the noise really high pitched or kind of a grinding noise?

Re: Pulley system [Re: rxinhed] #864540 01/28/08 07:36 AM

Joined: Feb 2007

Posts: 29

MadGary

Getting the Wheeling Fever

High pitched.

Re: Pulley system [Re: MadGary] #864541 01/28/08 07:41 AM

Joined: Feb 2005

Posts: 7,458

Montero Ranch

rxinhed

Trail Leader

High pitched is normally a belt, loose and slipping over the pulley/ies. Check the belt tension and readjust. If the belt tension is ok, other high pitch noises could be a tired bearing, worn PS pump or alternator. Be careful checking on a running engine.

Re: Pulley system [Re: rxinhed] #864542 01/28/08 05:34 PM

Joined: Jun 2007

Posts: 44

MSP MN USA

daan

Getting the Wheeling Fever

The belts on my 3.0, 91 seem to loosen themselves up every couple months. ALl of them are new, I get them good and tight and a few weeks later, EEEEEEEEE.

Re: Pulley system [Re: daan] #864543 01/28/08 07:54 PM

Joined: Feb 2005

Posts: 1,511

Phoenix, AZ

ryany

Body Damage is Cool

The easy way to determine whether the noise is from a belt or from a pulley is to shoot the contact surface of the belt(s) with a little wd-40, being careful not to get it all over the pulleys. If the noise goes away, tighten or replace your belt(s). If the noise doesn't change then you need to look at the bearings in your idler pulley(s).

95 Montero SR
3.8 MIVEC, Advance headers, 2 1/2" exhaust, Magnaflow muffler, OME shocks & rear springs, 2" body lift, 3" tank lift, 4.90s, TRE front locker, factory rear locker, Roger Brown Rock Sliderz, 315/75r16 (35") tires, Sport big brakes

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