Oil Leak Between PTU and Auto Transmission - Fitted Incorrectly ?

I've sprung a leak between the 9 Speed ZF auto box and the power transfer unit on my 2017 2.0D HSE which spewed a lot of oil out from the output shaft oil seal area. It was gearbox oil definitely exited via the output shaft seal / sleeve.

It seems there's a recognised weakness on the transmission sleeve design. I found all the info including Land Rover technical service bulletin SSM74140 which recommends the re-designed replacement sleeve which is part number LR123857.

Having removed the transfer box I found that strangely the sleeve which sits between that and the gearbox output shaft slid off by hand. This seemed a little odd as the info on line suggested it would need a slide hammer to remove it. On closer inspection I found there were 2 identical circlips fitted ...

1 in the groove on the output shaft it's self ...



and 1 identical circlip in the groove inside the sleeve (the end facing the camera is the one which slides onto the output shaft) ...



Now logic is telling me that there should 1 single circlip, and that it would then lock the sleeve into position. I'm wondering if this is the case ? anyone fitted one of these who can offer some advise ? or should there be 2 circlips which effectively sit up against each other when the sleeve is in place ?

No replies how did you get on?

Well I got the seal kit for it which only came with 1 replacement circlip, and any diagrams I could see online only ever show a single clip. Sure enough when I refitted it with just the one, there was a re-assuring click and the sleeve seems to have locked into place in the gearbox (hopefully at the required distance for the width of the sleeve to seat against the new seal correctly).

I'm hesitant to declare any form of success just yet, but covered over 1000 miles so far since repair and it seems to be holding the oil. I also found it was only a couple of litres short of gearbox oil after it was ejected, so I'm hopefully the box wasn't damaged and touch wood it's running nice so far.

pete10 said:

Well I got the seal kit for it which only came with 1 replacement circlip, and any diagrams I could see online only ever show a single clip. Sure enough when I refitted it with just the one, there was a re-assuring click and the sleeve seems to have locked into place in the gearbox (hopefully at the required distance for the width of the sleeve to seat against the new seal correctly).

I'm hesitant to declare any form of success just yet, but covered over 1000 miles so far since repair and it seems to be holding the oil. I also found it was only a couple of litres short of gearbox oil after it was ejected, so I'm hopefully the box wasn't damaged and touch wood it's running nice so far.

Click to expand...

Excellent, so to put it simply.. it's doing its job