RomeoFC3S

the tire whinning low sounds happens almost at all times...but goes away when making a left turn or even enough to make a little g force..

could it be my alignment or my "DTSS?" or something?


so ya, i got factory rims
80% life on all tires
front end is slightly lowered from the factory height..maybe an inch or 1.5''
rear is in factory height...
(got these settings when the car was bought from the previews owner)

Project84

Wheel bearing is the first thing that comes to my mind. Some cars have a squeal when the brake pads are worn down, but I've never seen that squeal go away in a turn, only when the brakes are applied.

YBNORML

It may be a belt on one of the tires. Can you hear which corner the sound is coming from? Try rotating the tires to isolate which one of the tires it is and then check that tire.

RomeoFC3S

no i doubt its my brake..i mean the sound is like a humming sound..

belt on the tires?..ok i'll try to rotate my tires

this info i read is from the mazdatrix in the suspension catagories:

Rear Suspension on 86-92 RX-7
"Rear Steer" was added to the RX-7 beginning with the 86 model. The rear geometry reacts to cornering "G" forces by changing the toe alignment on each wheel depending on the speed, loads, and body roll. The sensation the driver feels is the front wanting to steer into the corner, but is actually the rear steering to the outside of the corner. This all happens right when a sensitive driver is expecting the rear end to begin a slight slide which the driver would compensate for by some degree of opposite-lock steering input. "


so could it be that my rear steering system is screw'd up, thinking that i am making a turn while driving straight? thus having sort of like a missed align set up and make that humming sound, but goes away ONLY when i make a left turn?

i could be thinking too deep here and i could be wrong, and thats why i am here to listen to everybody's opinion : )

Natey

iTrader: (19)

CV joint? If it's coming from the rear, that could be the problem. Mine did it loudest when I was backing up.

RomeoFC3S

nope, i checked underneath when i oil changed

rx7ryan

i really don't think it's the dtss. i would say wheel bearing

RomeoFC3S

wheel bearings where inspected and had be recently lubed last year but it COULD be it too..
i jacked up the car up high, puts it on first gear and listened to the wheel bearings and there was no whinning sound...i know its not the brightest procedure to troubleshoot but i thought i'd tried it just for the hell of it.

BASTARD

iTrader: (4)

When peopel say "wheel bearings" they typicaly mean front bearings.

I would jack the car back up and check the front calipers, you may have a stuck piston

RomeoFC3S

ok i'll do that..but wouldnt having a stuck piston would cause an even braking performance? or not?..tho i will check again..thanks

anymore ideas?
so its for sure that it wasnt my DTSS right?

gotrotors?

Its your rear wheel bearing. It sounds metallic right? a constant hum? If iit goes away making a left turn, but gets louder making a right turn, its your left wheel bearing. The reason it goes away is because youre unloading it when you turn. itll get louder when you load it more (turning right). I had the same problem and it boggled me for a long time.

To change it, the offending rear hub has to come off

first undo the cv nut, then take off the bolts mounting the cv to the diff, then pull out the cv, take off the three BIG bolts holding the hub to the suspension. make sure to release your shock from the hub as well.
when you have the hub out, you first need to get the c-clip holding the bearing in, out. Its a real BITCH. once thats out, press the bearing out with a press, then you need to press the spindle out of the bearing. Installation is reverse of removal. Good luck

RomeoFC3S

nope..going straight and making a right turn has that same hum sound... and its not a metalic sound eiher... i do have a metalic whinning sound but its my clutch differential.. when i was underneath the car when engine running and tranny in first gear, most of the sound was 100% comming from the diff.. alignment maybe?.. its would be $70 if i come to a shop..so i thought i'd ask u guys first..the prob could be something simple