Wheelbearings

Transmissions, Transfer Boxes, Axles, Drive Shafts
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Peter Connan
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Re: Wheelbearings

Post by Peter Connan »

Wheel bearings are the same, but some of the seals are different due to the GQ's not having ABS sensors.
Mag ons ons kenniskry met lekkerkry aanhoukry.
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marakasmalan
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Re: Wheelbearings

Post by marakasmalan »

My 2 pence:

I opened up this whole catastrophy now to replace the axle oil seals, and I decided to replace ALL bearings. After a lot of struggling with BMI and Bearings International etc etc, I got the bearings from Ace bearings in Kempton, off the shelf - the milling required on the one. A little more pricey than what is quoted here. SIN and FAG bearings.

The Kingpin and Needle bearings I gor in a kit from Down Under - Koyo bearings.

Now unless something seriously went wrong - DON'T replace the needle and kingpin bearings. Just don't. It will outlive just about anything else on the car.

Secondly, apart from being unnecessary, there are so-called "kingpin plugs", indicated as a sundry/replacement item in the manual and about the size of a R5 coin, just slightly concave. R287 each - you need 4. Shims, what size and how much you'll need is debatable - R80 - R125 each - you may need 4, you may need 12...

Regarding the interval - there is some hidden code written on the chassis of my GQ that says ±200 000km unless wear & tear symptoms indicate otherwise. A bearing gives warning.

Anybody that do want to do this on a GQ - I have extra OEM oil seals, and some odd number of odd thickness shims... - talk to me.
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marakasmalan
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Re: Wheelbearings

Post by marakasmalan »

So, a update on my progress.

The rear cliphers has been rebuild and the discs replaced with powerbrake discs. Fitted the missing backing lates / Disc shields with a paired I liberated from a rusty Natal Patrol standing at the Volschenk Salvage Yard. Had to repaint them.
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Fixed the sliding bolt's holes with some sandpaper on Peter tool fixing to the drill:
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and fixed the pitted rusty slider to the drill:
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When assembled:
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Then started with the front axle. You can see the oil leaks due to the broken seal:
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For those of you wondering, I also teach my son other important stuff, not just fixing Patrol elements:
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marakasmalan
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Re: Wheelbearings

Post by marakasmalan »

Front axle bearings:

there was very much nothing wrong with the bearings, and I was almost at the point of deciding not to replace the king pin bearings. Though the bearings seams fine, there is a lot of pitting in the king pin bearing "seat" Not sure what it is called, but the place on the trunion socket where the bearings run. Can I ignore and refit the bearings or is this a bad problem?

The grease was fine and I did not see any evidence of water causing this rust and pitting, so it may have been a occurrence prior to a previous bearing replacement. But I could see no evidence of the king pin bearings ever been replaced.
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The tool for cleaning the axle inside, there was some gunk in the axle:
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Pitting on the trunion:
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Also discover the front calipers are in a horrible condition. They have two pistons - the rear caliper kit was R1500+ from Nissan - any ideas where I can get these seals and grease and rubbers at an affordable price?

The one benefit of having a Diesel, you can simple remove the calipers if there are any problems, as they are used to counter the effect of speed...
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Re: Wheelbearings

Post by bogeyman »

Marnus,
I was forced to replace kingpin bearings on one of my 600k km + Safaries when the steering became semi locked straight ahead and took some serious effort to turn.
I found the needles had embedded themselves into the races. Strangely that also sorted out the play I felt when manually checking wheel bearing play.
Sometimes one forgets to check every part of an assembly.

Those new back brake discs look like Powerbrake. I found that they work well when warm , but not well when cold.

When I approach my slow sliding gate in the mornings and the 4.5 engine is still revving high for warmup , that autobox is stronger than the brakes and it is back to seat cleaning duty.
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marakasmalan
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Re: Wheelbearings

Post by marakasmalan »

Christo, you are right, it is powerbrake.

But only the discs. Powerbrake shoes are intended for racing, so for me pointless to use on a patrol.

But the discs are steel and i am not so sure if they contribute to the effectiveness at high temps only.

BUT, it was the cheapest discs I could get. The pads are ferodo. Also note the jacking bolt-hole that PC put in, as powerbrake reckons their paint makes it easy to remove. I opted not to trust them.
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marakasmalan
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Re: Wheelbearings

Post by marakasmalan »

There is some granular gunk in the axle - but the axle narrows towards the end with a collar, so not that easy to get it out. If I flush it with petrol int the pumkin an drain out - or rather leave as is?

Where do you get those beefy magnets every workshop have, mounter on wheels and attached to a broomstick to pick up ferrous kakkas?

Adios
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Re: Wheelbearings

Post by Tinus lotz »

marakasmalan wrote:There is some granular gunk in the axle - but the axle narrows towards the end with a collar, so not that easy to get it out. If I flush it with petrol int the pumkin an drain out - or rather leave as is?

Where do you get those beefy magnets every workshop have, mounter on wheels and attached to a broomstick to pick up ferrous kakkas?

Adios
From the back of a old speaker?
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marakasmalan
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Re: Wheelbearings

Post by marakasmalan »

Tinus lotz wrote:From the back of a old speaker?
Tinus, het jy vir my 'n ou speaker? Niemand luister anyway na daardie twee in jou agterdeure nie...
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Tinus lotz
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Re: Wheelbearings

Post by Tinus lotz »

Ek sal loer ma my agter speakers bly net waar hulle is....lol :thumbup:
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