Newbie with an oil leak

4 replies [Last post]
Mon, 30/03/2015 - 17:31
HIMRB
HIMRB's picture
Offline
Joined: 05.02.2015
Location: Bromley, Kent

Good afternoon,

1991 W463 300GE

I have only had my G for one week and I have a very small pool of oil on the driveway.

I would very much appreciate your help in identifying the cause from the pictures I have taken.

The Garage i purchased it from has offered to repair the leak but I would like to know before I take it back exactly what it is to avoid any miss understanding.

 

Thank you MrB

 

Login or register to view attached files
Top
Mon, 30/03/2015 - 19:46
#1
gav.helme
gav.helme's picture
Offline
Joined: 29.04.2011
Location: North Lincolnshire
GWOA Groups: Members
Re: Newbie with an oil leak

What is the picture of?

Is is an Automatic?

What colour is the oil? Red / Black

Does it have any smell?

Gav

Top
Mon, 30/03/2015 - 20:22
#2
HIMRB
HIMRB's picture
Offline
Joined: 05.02.2015
Location: Bromley, Kent
Re: Newbie with an oil leak

Hello Gav,

Sorry mate, it is an Automatic and the colour is Red/Brown and very clean, I presumed it is the transfer box.

I have attached another shot which may help

Top
Mon, 30/03/2015 - 21:04
#3
Arnie
Arnie's picture
Offline
Joined: 12.04.2004
Location: London
GWOA Groups: Members
Re: Newbie with an oil leak

Looks like the transfer box, but its oil should be gold/yellow in colour- an SAE-80, GL-4,  mineral, gear oil. For this you can also use a 75W-85 (semi) synthetic gear oil.

If the oil is red/brown, that might be Dexron -type auto-transmission fluid.. If it's been mis-filled, It would be too thin for the transfer case and the oil and would certainly leak.

in any case check the drain-plug is tight.

lf the oil is correct and the drain plug is tight, then it may be one or more of the drive- shaft seals are leaking. To replace them, the props shafts and drive-shaft flanges will need to be removed, but it is very important to mark their original positions. Refer to service manual.

 

Actually, after a second look, that side of the transfer box looks very oily with deposits all over. I suspect it may be the  output shaft seal. But check also the speedometer-cable drive gear, that is attached to the transfer box, in case it has come loose and is leaking.

 

 

 

Top
Tue, 31/03/2015 - 17:16
#4
HIMRB
HIMRB's picture
Offline
Joined: 05.02.2015
Location: Bromley, Kent
Re: Newbie with an oil leak

Good afternoon Arnie,

I just slid under the G in between the showers and the oil is a very clean gold/yellow but as you say the Transfer box is extremely oily all over.

Regards,

MrB

Top