continually weeping rear hub seal...what am I missing?

**dromader driver** · 19th July 2016, 08:14 PM

there are comments on the online stuff by bearmach about setting the seal much further in. Recently did my front bearings and seals and could not get a straight answer as to how far the seal needs to go in. in this video around 9 mins 30. [ame]https://www.youtube.com/watch?v=ZtbQFAftCV8[/ame]

Might need to be seated further in.

**86mud** · 19th July 2016, 08:58 PM

rightio! I see he drifted the seal 4mm past the the hub surface!

**justinc** · 19th July 2016, 09:24 PM

Andrew i would be ignoring that and just hammer the sucker all the way in till it stops. The vid is using the ftc4785 seals which are the 4mm depth ones with no garter springs and are totally useless. They let water in and grease out... Rtc3511 need full depth fitting ☺

**86mud** · 20th July 2016, 08:05 AM

Thanks Justin. I have only ever used Corteco RTC3511 seals. From memory the reason I was only drifting in the seal flush with the surface of the hub was that the seal had a slight lip on the outer circumference and I thought this was to sit flush on the hub surface.

I'll check when the new seal arrives today in the post.

Cheers

**86mud** · 20th July 2016, 10:15 AM

Here is a picture of the seal (Corteco RTC3511) and you can see the lip on the outer circumference.

So I am assuming it is ok to the push seal into hub passed this lip?

**weeds** · 20th July 2016, 11:51 AM

Yes, I have in the past.....

**loanrangie** · 20th July 2016, 12:58 PM

That outer lip should sit flush with the edge of the hub.

**86mud** · 25th July 2016, 08:19 AM

Twice previously I have pushed the seal in just using my fingers so that the lip is flush with the hub surface and both times they have ended up leaking.

See pics attached. I have pushed the new seal in further this time. Fingers crossed this works!

**weeds** · 25th July 2016, 09:34 AM

I have always needed a hammer to get the deal in....you sure it's not leaking between the OD of the seal and the hub?

**86mud** · 25th July 2016, 09:40 AM

To push the seal lower then the hub surface this time I had to use a hammer and a piece of pipe.

Fingers crossed!

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