Gearbox has Unquenchable Thirst…

[JimF]

I’ve got a 172 ph2, 85,000 miles.
I knew it was weeping gearbox oil from the selector seals but the box has always been fine - never had a reason to worry. It’s not really been used properly in a good year since before Covid, so I decided to top up the oil. I found the plug on the front of the gearbox, and I used a syringe with a decent length id flexi pipe on it.
Now so far I’ve put 2 litres in and it’s not trickling back out of the hole yet.
What horrors await me now? I’ve checked and it’s not coming out the bottom. Like I said I’ve never had gearbox issues I just wanted to stay on top of it.
Is it just a case of putting more in? Is there a way I can do this wrong?

 

[Yosemite Sam]

I think they hold 3.5 liters from memory?

Just keep going.

 

[NorthloopCup]

Yeah they only hold 3.2ltrs (allegedly) but I’ve only ever managed to get 3ltrs in one! Lol - and even then it wasn’t a full ltr as it was a US qtr 😂😂

 

[Coops Mk1]

Just keep going, she'll be reet

 

[Djw John]

Does the flexi pipe fill the hole totally? I ask cos the bit of garden hose I use does, nothing leaks out then you pull the hose out and it feels like about double what you've added drips out!

 

[JimF]

Thanks all! Will keep at it. I took it out tonight for twenty minutes and it was sweet as a nut.
The tube in using is maybe 5mm OD so no chance it’s blocking the way.

 

[R3k1355]

Fill it up, then DM @NorthloopCup to see what the rebuild cost is likely to be.

 

[JimF]

That can be a surprise I’ll look forward to in the future 😂