Minor Oil Leak

[Stan_brook]

The initial message was deleted from this topic on 28 September 2026 at 23:19

[WombleCate]

While I don’t know the K-Series, you don’t want oil dropping from the Bellhousing/ inside it, as that will lead the clutch to slip.

Commonly caused by the rear main seal failing, while that’s a cheap part, it is an engine out so a few hours labour.

I’d discuss it with the dealer. Though they won’t be wrong if they say “they all do that”.

[Stan_brook]

Thanks. Appreciate it and agree can’t imagine the dealer will be that keen to sort it out. Especially as it’s tricky to see where the sump one is coming from too!

[DVandrews]

It’s not unknown for gearbox oil to get past the nose seal on the first motion shaft and pollute the bellhousing. It’s worth dabbing the oil with your finger and giving it a sniff to see if it has the characteristic smell of gear oil.

If not then the likely culprit is the rear crank seal, this can seep forward to the sump.

If the seal is to be replaced make sure you / they use a good quality seal (INA or Corteco) as there are a large number fo cheap seals flooding the market, these harden in use and then leak. The flywheel bolts will need a generous application of loctite to seal the threads or oil will wick down the threads and oil the clutch.

Oily

[Stan_brook]

Thanks Dave. Appreciate your help again.

This is the one I ended up buying rather than the other car we were trying to identify a few weeks ago! Went for something fairly stock to avoid any issues - oh the irony!