Changed tractor hub seals and they are still leaking

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #1

I changed my tractor's hub seals and there still is oil leaking onto the inside of the rim.

Any suggestions on what to do now?

 

Nearly

Member

Location

North of York

• Apr 15, 2024

• #2

Take it apart again.
Is shaft grooved or worn?
Tighter seals
Have shaft built up.
Thicker oil.

 

C

crashbox

Member

Livestock Farmer

• Apr 15, 2024

• #3

Is it...

Where the shaft enters the hub?
Where the outer seal sits around the hub body?

Did you replace both?

 

S

Sausage

Member

• Apr 15, 2024

• #4

Did you put the seal in the right way round? Made the mistake myself once

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #5

Nearly said:

Take it apart again.
Is shaft grooved or worn?
Tighter seals
Have shaft built up.
Thicker oil.

Click to expand...

crashbox said:

Is it...

Where the shaft enters the hub?
Where the outer seal sits around the hub body?

Did you replace both?

Click to expand...

I replaced the seal with the saft coming from the axle. (no leak here now)
I replaced the seal the shaft entering the hub (no leak here now)
I also replaced the large oil seal that sits around the hub body.

The leaks seems to be coming from the below gap.

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #6

Sausage said:

Did you put the seal in the right way round? Made the mistake myself once

Click to expand...

Im 90% sure its right...ill have to take a part again and let you know thanks

 

C

celtis man

Member

• Apr 15, 2024

• #7

Is the hub a bit worn?

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #8

celtis man said:

Is the hub a bit worn?

Click to expand...

its not to bad.. thats it there below

 

C

celtis man

Member

• Apr 15, 2024

• #9

95xpower said:

its not to bad.. thats it there below
View attachment 1175992

Click to expand...

Normally a bit of bale net gets wrapped around and wrecks the oil seal at the back and the back bearing

 

Dry Rot

Member

Livestock Farmer

Location

Scottish Highlands

• Apr 15, 2024

• #10

Hylomar BLUE Universal Gasket & Jointing Compound Sealant 40g - Fuel Resistant 5036626005902 | eBay

Resistant to combustion products, water, engine coolant, petroleum, lubricating oils & kerosene. Vibration resistant. Key Features. Non-hardening and non-setting.

www.ebay.co.uk

 

milkloss

Member

Livestock Farmer

Location

East Sussex

• Apr 15, 2024

• #11

Is the bearing stuffed?

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #12

I never changed the bearing..but there does seem to be a small bit of play

 

F

Fendtbro

Member

• Apr 15, 2024

• #13

Must be no play in bearing. How are you driving the seal in?

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #14

I used the old seal to gently tap it in with a hammer

 

ACEngineering

Member

Location

Oxon

• Apr 15, 2024

• #15

95xpower said:

I used the old seal to gently tap it in with a hammer

Click to expand...

you got a better pic of the seal? its a carraro axle and normally they have cassett seals and yours looks to be a standard lip seal??

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #16

Your correct, mine is a 20.14 carraro axle..the cassette seal comes in a 130mm inner diameter but it's too loose this had a 125mm inner diameter standard seal which was in it before. The photos below shows the difference

 

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M

MF CI

Member

• Apr 15, 2024

• #17

Get the correct seal and do the job properly, 5mm difference is usually caused by the inner wear ring part of the old seal being left on the hub.

 

9

95xpower

Member

Livestock Farmer

• Apr 15, 2024

• #18

MF CI said:

Get the correct seal and do the job properly, 5mm difference is usually caused by the inner wear ring part of the old seal being left on the hub.

Click to expand...

The wrong seal was obviously put in by the previous owner..I got the correct cassette seal as shown in picture..then it was loose so I got another of the previous one...could you send me where I would find the inner wear ring?

 

M

MF CI

Member

• Apr 15, 2024

• #19

This is a cassette seal if you pull the outside part to the right the inner part gets left behind on the hub, if you see what I mean. Never forget that a previous repair may have included machining something to fit a different (cheaper) type of seal.

 

L

livestock 1

Member

• Apr 15, 2024

• #20

Those axles have a wear sleeve that fits onto the stub axle/hub knuckle
Is it missing?