Please close thread, info moved to my worklog.

[MrMazda92]

Just keep them clean and the belts tensioned properly, that's the most any of us can really do.

[mikeinaus]

Either one of the pulleys has seized or the harmonic balancer has become undone. So if nothing is obviously seized then inspect the crank pulley to see if the outer ring has come loose from the center portion.

I checked all of the pulleys, and the tensioner. They're all free spinning, with no more resistance than normal. The A/C compressor pulley was pretty grimey, but not enough that it should throw the belt.

The outer ring of the crank pulley turns independently of the pulley itself... Am I to assume that this is my problem? There were no burrs/stress points anywhere else. With fairly light pressure, I can wiggle the outer ring on and off the pulley. I haven't removed it, but is that movement normal?

nope. your harmonic balancer is toast. the way it works is there is a rubber insulator between 2 "pullies" (lack of a better term) in the harmonic balancer (crankshaft big pulley). torque from the power stroke causes vibrations in the engine. the rubber is meant to act as a slight shock absorber to dampen this torque. sounds like yours dried out over time and was just shredded from rotational torque on the crank. grab a new (used) harmonic balancer or a under drive pulley(not recommended) before you slap on a new belt.


the belt more then likely got shredded from jumping onto the lip of the HB. im surprised your alternator was producing enough juice considering you can spin the outer pulley by hand.

[MrMazda92]

The alt was barely keeping my battery charged for a while... 30K miles honestly. Battery tested good every time, I charged it multiple times overnight, and my alternator/battery light has been on and off since I bought the car. Maybe I know why now, eh?

Btw, just for shits n giggles...

Exactly as you and Josh called it... Sadly I have no spares. I won't likely have much luck at the JY either...

[mikeinaus]

ryan probably has a few. post in the wtb, im sure a bunch of people have spares. for now grab the one off your car thats not road worthy so you can get around.

thats cool though. i honestly never thought one of them would wear out but i guess it makes sense.

[MrMazda92]

Damn... Good call on pulling it off the '93. I hate to do it, but if I can't find a cheap one in town in 2 hours that's what I'll do.

Thank you Mike, and everyone else who helped on this.

Btw quick confirmation, same part # as the KL pulley, correct?

[mikeinaus]

yeah all k series should be the same...

[MrMazda92]

I thought so as well, but the G4 has a different style!

Never noticed that before... I wonder which one is lighter.

Rock Auto lists the '96 Millenia(KL) Harmonic Balancer(Old style, matches every K besides the G4, from what I can tell)
as DORMAN Part # 594120 {#F32Z6C337A, KL0111400A, KL0111400B} Double Serpentine Belt
Diameter; 5-21/32" = 5.65625"
Width: 2-7/32" = 2.21875"
Weight (lbs.): 4.8

Rock Auto lists the '00 626(KLG4) Harmonic Balancer(Newer style, unique to the KLG4, from what I can tell)
as DORMAN Part # 594218 {#KLG411400} Double Serpentine Belt
Diameter; 5.69"
Width: 2.22"
Weight (lbs.): 4.9lbs

According to this, the older style is smaller and lighter. Interesting stuff, huh? The newer one is more expensive too.

[MrMazda92]

The good news is I can pull one from a '95 Probe for $25. The bad is I have to wait until tomorrow! Damn.

[Sleeper6]

I know aaron should have a spare from the motor I put in, or you can do what i did and get one from Mazda USA shipped from japan that is solid and lighter. Best 295.00 I ever spent on the car I think. Good luck that it was just the belt, Ive seen those come off at speed and leave some nasty dents in teh hood and ruin other underhood bits.

http://i1033.photobucket.com/albums/a41 ... lancer.jpg

[Ryan]

I do have a spare, probably.

G4 is different for the 32 tooth crankwheel sensor for its coilpacks. If you run MSII, this is a good option for you.

I've been a douche recently on shipping though, it takes time to set up a shipment...

[MrMazda92]

Interesting! Was it stock diameter for both belts?? Do you remember the difference in weight?

It actually didn't come completely off, I only noticed it because it was cocked slightly on angle, and one side was farther on than the other. The fact that it spun freely by hand confirmed it, and then I was able to wiggle it off with 1 hand.

I'm blessed today, for once, as I am able to use the Camry again for an indefinite time period... Meaning I have a rock solid, reliable, 4 banger auto trans car to fly around town in while I fix both MX-3s. I didn't see it coming, but I'm extremely grateful for the opportunity.

Ryan, It's been a while!
Ahh, that makes sense, I was just surprised about the change in diameter and weight, slight as it is.
Shipping would make it a killer... I can pull one from a semi-local yard for $25 flat fee, and it looks like that will be my quickest option at this point. Sleeper6 has me curious about the solid pulley now though! I'd love a lighter weight pulley, without messing with the diameter too much. UDPs don't appeal to me, but a lightened pulley does big time.

[Ryan]

Mazda doesn't offer the rubber isolated one anymore, they have an updated 1 peice design, but add a zero to your JY price point.

whatever you do, don't weld it. I will drive down to your house and slap you.

[MrMazda92]

Mazda doesn't offer the rubber isolated one anymore, they have an updated 1 peice design, but add zero to your JY price point.

whatever you do, don't weld it. I will drive down to your house and slap you.

If you bring a spare down with you, I'll consider this a worthwhile venture.
Does Mr. Ryan know of any lighter alternatives, that aren't bright purple and smaller in diameter?

[Ryan]

Nope. I'd just stay stock.

Weight isn't an issue on a balancer, unless its 10" in diameter (like some big block motors)

Inertia is a function of mass, and radius squared. The radius is small, and the mass is small. Don't get a lighter pulley for power reasons. It doesn't add up.

[MrMazda92]

Good point... It'd only be maybe 3 pounds of savings, I guess it'd be worth if I could do it for under $150. I'm glad I snagged my Fidanza when I did, I paid less than people do for a UDP.