Inner hub seal seating depth - Defender Source
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  #1  
Old December 6th, 2005, 10:06 AM
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Inner hub seal seating depth

RTC3511 inner hub seal, should this be seated deeper?
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  #2  
Old December 6th, 2005, 10:30 AM
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Yes,
If you read the printing on the seal, it says to seat it 3 or 4 mm below flush.
Rob
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  #3  
Old December 6th, 2005, 11:39 AM
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  #4  
Old December 6th, 2005, 11:43 AM
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Quote:
Originally Posted by Roadsiderob
Yes,
If you read the printing on the seal, it says to seat it 3 or 4 mm below flush.
Rob
When all else fails.......read the instructions.
I never knew there were any printed on the seal!
Probably because I tend not to buy genuine
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  #5  
Old August 13th, 2009, 10:22 AM
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I'm fitting the rtc3511 to my rear salisbury (and converting to rear discs), and it looks like it fits differently than my original seal -
Does the seal change shape as it goes in?
Is there actually some of the bore showing once the seal is completely seated?

I found this pic on lr4x4.com of a front hub - does this pic correctly depict the proper fit?
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  #6  
Old August 13th, 2009, 10:43 AM
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Since I originally posted I've probably done a half dozen of these. Yes, it does change shape a bit as it seats, IMO the pic is just right.
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  #7  
Old August 13th, 2009, 10:44 AM
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Sweet, thanks!

What do you use to seat it properly? Not the -gasp- special tool?
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  #8  
Old August 13th, 2009, 11:01 AM
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i use the old seal to seat it
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  #9  
Old August 13th, 2009, 11:48 AM
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Jimmy's method or a piece of PVC pipe works. There is a metal core to those so you can get away with gently tapping it in with a flat screwdriver on the flat part and working around it in a circle.
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  #10  
Old August 13th, 2009, 12:42 PM
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Knock it in until it touches the bearing. Simple....
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  #11  
Old August 13th, 2009, 01:13 PM
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Pic 1) 4mm deep

Pic 2) Use the drive flange to seat it

Pic 3) But don't drive it home, there will be a bit of a gap between flange and hub.
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  #12  
Old August 13th, 2009, 01:21 PM
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That's great Tom - I edited your post to add the pix.
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  #13  
Old August 14th, 2009, 08:26 AM
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Thats a great Idea Tom..
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  #14  
Old August 14th, 2009, 08:35 AM
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I re-did the hub last night, and found that an old bearing race was the perfect size for inserting the seal. So that's what I used, but I'll probably end up buying that tool. Because I am a tool.
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  #15  
Old August 14th, 2009, 10:40 AM
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Quote:
Originally Posted by JimC
I'm fitting the rtc3511 to my rear salisbury (and converting to rear discs), and it looks like it fits differently than my original seal -
Does the seal change shape as it goes in?
Is there actually some of the bore showing once the seal is completely seated?

I found this pic on lr4x4.com of a front hub - does this pic correctly depict the proper fit?
There are two rear hub seals, the double lip one and the not double lip one. IIRC the double lip one was a remnant from the wet hub days and that is the better of the two, but if you are running grease in the hubs, it does not matter much.
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  #16  
Old August 14th, 2009, 12:22 PM
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If the "not double lip one" is the one fitted to Disco's (FTC4785), it's a PoS, IMO.
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  #17  
Old August 14th, 2009, 01:15 PM
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The only great seal is the RTC3511 the FRC8221 is good the Disco ones are nearly useless if you wheel at all.
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  #18  
Old September 9th, 2009, 10:09 AM
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I'm using the 3511 seal on the rear of my 1989 RRC where I have wet hubs. I just did a toyota conversion a few months ago and at that time I got new hubs with all new bearings and these seals.

When I was doing that job, it became evident that I needed new brakes all around. I just started to do the rear brakes and I was hoping to gently remove the hub and keep the seal in place to reuse since it is so new. When I took off the hub, a small round wire remained on the spindle.

How important is this wire? Should I just order some new seals or do you think I can reuse this seal even though the wire came off? thanks
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  #19  
Old September 9th, 2009, 10:12 AM
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That wire is a tension spring for the seal, I'd use a new seal.
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  #20  
Old September 9th, 2009, 10:13 AM
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Ok, I was hesitant to replace initially because they were like $15-20 each, but it looks like British Pacific has them for about $5 and I need to order some other stuff too

I will go ahead and order a few new ones.
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