Hi Guys
I've got a "wo wo wo wo wo wo wo" noise coming from somewhere. I presume its some where on the drivetrain (and guessing its the wheelbearings) as it doesnt fluctuate with the engines revs, but it does fluctuates with the speed the car is traveling. (and seems to be less noticeable when in 4H)
When are you supposed to replace wheel bearings? As far as I can tell, the IO is still running with original bearings @ 175k-km.
What else should one replace while doing the wheel bearings?
Thx
Affiliate Member
I'm not familiar with the io but the gen2 have the ability to tighten up the wheel bearings up to a point.
jack up the wheel and put your hand at 3 and 9 oclock positions. Wiggle the wheel and feel for play. Do the same at 6 & 12 oclock positions.
If you are unsure, take it to a Hi-Q or something for them to check it out. Safety first regardless of cost.
jack up the wheel and put your hand at 3 and 9 oclock positions. Wiggle the wheel and feel for play. Do the same at 6 & 12 oclock positions.
If you are unsure, take it to a Hi-Q or something for them to check it out. Safety first regardless of cost.
Site Admin
Jaco
Listen carefully - is this only when in first gear?
Listen carefully - is this only when in first gear?
Simon Bloomer
If it is wheel bearing related, it is highly likely that the sound will change as the lateral load generated changes, i.e. As you corner or peeeform a lane change. A rapid lane change maneuver is probably the best way to show this up.
Gerrit Loubser 
2003 Toyota Land Cruiser 100 VX TD
2003 Mitsubishi Pajero 3.2 DiD LWB A/T Gone & missed
1999 Nissan Patrol 4.5E GRX M/T: Gone & missed
1996 Toyota Land Cruiser 80 VX 4.5 EFI A/T: SOLD
2003 Toyota Land Cruiser 100 VX TD
2003 Mitsubishi Pajero 3.2 DiD LWB A/T Gone & missed
1999 Nissan Patrol 4.5E GRX M/T: Gone & missed
1996 Toyota Land Cruiser 80 VX 4.5 EFI A/T: SOLD
@SimonB - No, its more noticeable in 5th going at highway speed.
I recently serviced the drivetrain (oil and seal change) so the gearbox, transfer and diffs should be in good condition. This is why I'm thinking its the wheel bearings.
Can a slightly bent prop shaft cause such a noise? I got caught up on a rock at Berakha. Didn't think much of it at the time, as you cant see anything, but Fielies said I should have my prop shaft checked out/balanced.
I will measure the end play this weekend and update on monday.
I recently serviced the drivetrain (oil and seal change) so the gearbox, transfer and diffs should be in good condition. This is why I'm thinking its the wheel bearings.
Can a slightly bent prop shaft cause such a noise? I got caught up on a rock at Berakha. Didn't think much of it at the time, as you cant see anything, but Fielies said I should have my prop shaft checked out/balanced.
I will measure the end play this weekend and update on monday.
Turns out to be the tires!
This is the explanation the tire guru gave me yesterday.
- Tires aren't 100% round when coming off the production line (High and low points). The center of gravity isn't in the middle of the tire. Thats why it has to be balanced.
- The front right tire had more than 300gr of lead weights on to get it balanced initially. After 40 000km the high points has worn down causing the weights to throw the tire off balance, that in turn caused the noise to go from bearable to unbearable.
The tires are balanced now, and the sound is gone!
This is the explanation the tire guru gave me yesterday.
- Tires aren't 100% round when coming off the production line (High and low points). The center of gravity isn't in the middle of the tire. Thats why it has to be balanced.
- The front right tire had more than 300gr of lead weights on to get it balanced initially. After 40 000km the high points has worn down causing the weights to throw the tire off balance, that in turn caused the noise to go from bearable to unbearable.
The tires are balanced now, and the sound is gone!
Great stuff!JacoV wrote:Turns out to be the tires!
This is the explanation the tire guru gave me yesterday.
- Tires aren't 100% round when coming off the production line (High and low points). The center of gravity isn't in the middle of the tire. Thats why it has to be balanced.
- The front right tire had more than 300gr of lead weights on to get it balanced initially. After 40 000km the high points has worn down causing the weights to throw the tire off balance, that in turn caused the noise to go from bearable to unbearable.
The tires are balanced now, and the sound is gone!
What brand are you using? I'd like to avoid a brand that is so far out of balance!
The high and low points is related to the quality of production. What the technician is not saying is that some brands have the tendency to be "out" more than others! On the other hand, the situation gets worse when driven out of balance.
Anton
There are also some tires that are unbalanceable (is that a word?) or rather that can only be balanced at one speed. I think this happens because the tyres deform into an oval shape under centrifugal load at speed. I once had a set of Goodyears replaced free of charge because of this. Instead of fitting more of the same, I opted to pay in and get MTRs at the time.
Gerrit Loubser
2003 Toyota Land Cruiser 100 VX TD
2003 Mitsubishi Pajero 3.2 DiD LWB A/T Gone & missed
1999 Nissan Patrol 4.5E GRX M/T: Gone & missed
1996 Toyota Land Cruiser 80 VX 4.5 EFI A/T: SOLD
2003 Toyota Land Cruiser 100 VX TD
2003 Mitsubishi Pajero 3.2 DiD LWB A/T Gone & missed
1999 Nissan Patrol 4.5E GRX M/T: Gone & missed
1996 Toyota Land Cruiser 80 VX 4.5 EFI A/T: SOLD
Goodyear Wrangler AT/R. I think they are discontinued now. So far 40 000km and 60% thread left. Apart from this problem, I've only had happy miles on them. Good R/km rate (compared to my polo which chows a set of Bridgestone MY01 in 30000km @ R1200 per tire), good traction off road, not to bad on road noise.
The tire guy mentioned that it is quite a regular problem with goodyear AT as well as firestones ATX. He recommends BFG! He suggested that one should balance and rotate tires every 20000km. Don't think he is out to make money out of this statement as he didn't charge me!
The tire guy mentioned that it is quite a regular problem with goodyear AT as well as firestones ATX. He recommends BFG! He suggested that one should balance and rotate tires every 20000km. Don't think he is out to make money out of this statement as he didn't charge me!
BFG's are one of the top brands for off-road tyres, but expensive. You will get good mileage on them, and I doubt that you will see any issues such as the one you have experienced with your GY's.JacoV wrote:...He (the tyre guy) recommends BFG! He suggested that one should balance and rotate tires every 20000km. Don't think he is out to make money out of this statement as he didn't charge me!
But then, they are expensive. Very expensive. Quality comes at a price, though!
I recon a 20000 km cycle to balance and rotate tyres is too long. I do it every 10000 (I have Bridgestone Duelers).
Anton