couple questions (oil psi / wheel bearing)

[testy]

1. How do I change the front wheel bearing in my 91 Loyale without braking my car.

 

2. When I start my engine in the morning it revs to 2000rpms. I touch the gas and it drops to like 1500rpms then it starts to plumet until it stalls unless I hit the gas again. The oil pressure also gos to like 60psi untill the car warms up and then its normal (normal= 10-15psi for 1500 rpms / around 45psi for normal driving). Is there something wrong here?

 

 

Thanks alot guys. I know my questions might be silly but this board is teaching me alot about cars.

[BlueSteel]

wheel bearings are pretty easy.. did 2 of them a couple nights ago

 

undo the wheel and axle nuts

jack the front of the car up

undo the hub bolts

undo the brake caliper bolts

remove the hub and disc and caliper

punch out the roll pin from the inner cv cup

remove the inner lower control arm bolt

undo the swaybar bushing

pull the steering knuckle/lower control arm out so the cv comes off the gearbox

with a soft hammer/punch knock the axle towards the engine so it comes out of the steering knuckle

with a punch/drift and hammer knock the inner bearing from the outside, go round the bearing till it pops out (the seal will come out with it)

there should be a metal spacer in the middle, pull this out

from the inside knock the outer bearing out of the steering knuckle

 

clean all the old grease out, fill the new bearings up with some fresh grease

 

installation is reverse of the above

 

be careful with the new bearings tho, only hit the outside ring of the bearing as when you hit the inner it puts stress on the bearings which will shorten their life span or ruin them altogether

 

 

cheers

bluesteel

[NorthWet]

Unless you did something nasty to them, the front wheel bearings are probably fine. If you hear noises it is probably an axle issue caused by improper assembly/tightening of the axle nut. (more info if you want it)

 

Is your car carb'd or SPFI? (I am not sure what Canada got.) The cold-start sure sounds like a carb. Otherwise (if SPFI) it sounds like the idle valve (not its real name, but tired and can't remember right name).

 

Oil pressure sounds relatively normal.

[testy]

1. Grinding, crunchy, rubbing, vibrations, quite loud, faster as i accelerate sounds. Where on the axle is that kind of problem?

 

 

2. spfi.

[NorthWet]

Often that grinding, graunching noise is the axle splines sliding in the hub splines. Common mistakes are to put the slightly dished washer (under the axle nut) on backwards (dish facing outwards) and/or not tightening the axle nut enough (officially 140ft-lbs; others recommend upwards of 200-250 ft-lbs).

 

If the axle has been sliding long enough it could damage the grease seals on the hub, which would then need replacing. If the seals have been damaged for a long period, the bearings could also be affected.

[GeneralDisorder]

Might have ground the splines out of the hub too - seen that a few times.

 

GD

[testy]

ok, theres no crunchy sounds, that was something else.

 

there is vibrations when i turn the car, and it is no a higher pitch squeling noise.

 

Kinda like wet shoes twisting on venolium, but repeditive and faster.

[GeneralDisorder]

There's just no sense in us repeating ourselves - your problem IS either:

 

1. Axle nut is loose (most likely).

 

2. Wheel bearing is bad.

 

We cannot ascertain which one for you, no matter how many ways you describe the noise. Get out there and pull the thing apart. It takes 10 minutes to check the axle nut, and it has to come off anyway if the wheel bearings are suspect.

 

GD