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Radius Arm Dust Seal Installation


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#1 newenglandmini

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Posted 30 March 2015 - 09:46 PM

I am unable to seat the radius arm support pin dust seals.  The seals don't seat in the shoulder on the radius arm casting and the thrust washer works it way into the seal ID when I tighten the nut.  How do I do assemble these bits and what should the assembly look like when done correctly? 

 

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#2 nicklouse

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Posted 30 March 2015 - 09:55 PM

First things that washer is the wrong way round. The ring should be arm side.

#3 Guess-Works.com

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Posted 30 March 2015 - 09:56 PM

The dust seal covers both the lip on the arm and the thrust washer, therefore preventing the ingress of dirt between the thrust washer and the arm.



#4 spiguy

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Posted 30 March 2015 - 09:57 PM

The thrust washer should be inside the seal when fitted, so what you are finding is correct. When it is on the car, the subframe (on the inside) and the radius arm bracket (on the outside) will sit right against the thrust washer face, and the seal will be up against these surfaces. That's how it's supposed to be.

 

Just position the thrust washer up against the pin and pop the seal over it.

 

 

First things that washer is the wrong way round. The ring should be arm side.


+1 to that :-)


Edited by carlukemini, 30 March 2015 - 09:58 PM.


#5 newenglandmini

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Posted 30 March 2015 - 10:48 PM

Alright lads, brilliant!  As always, thanks for the prompt and thorough assistance.



#6 Bodhi

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Posted 19 October 2015 - 06:44 PM

Where the groove is off set on the thrust washer does it matter which way it's positioned.

#7 Spider

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Posted 19 October 2015 - 07:18 PM

The Arm is knackered!  The shoulder for the seal has just about rusted away and in any case, the thrust face looks like a lava pit!

 

I can't see the whole thrust face from that photo, but if all of it looks something like that, then it will have a fair bit of side float, not the best for handling or braking.

 

I'd suggest finding another Arm.



#8 newenglandmini

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Posted 03 November 2015 - 01:20 PM

A belated thank you for your observation.  I inspected the surface and determined that it is not rusted, but it does have what appears to be damage from disassembly.  I'm going to true the surface before reassembly.



#9 Stevie W

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Posted 03 November 2015 - 08:16 PM

Hi Corey,

 

The position of the offset groove doesn't matter as long as this groove is facing inwards towards the radius arm.

One thing worth mentioning is the actual seal itself. Try and buy or use genuine Rover items as I've now just replaced all 8 of these for the 2nd time due to poor quality rubber parts that crack and perish.

Not too bad a job on the rear sub-frame but a royal pain in the behind on the front, especially when you have a servo fitted!! 

 

Cheers, Steve.



#10 newenglandmini

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Posted 13 November 2015 - 01:36 PM

Hi Steve,

 

I just inspected the new seals that came with my radius arm rebuild kit.  They show surface cracking as-installed brand-new!  I'll follow your advice and source some better quality seals.



#11 Stevie W

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Posted 14 November 2015 - 03:12 PM

Hi Corey,

 

Well done for spotting the cracks, this is exactly what my rebuild kit seals were like! The genuine ones are better.....but check each one as some of these are "pre-cracked" too!!

 

Cheers, Steve.






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