HDI pushing out dipstick?

[the daddy]

Evening all - hoping for a bit of technical advice.

My father has a Pug 406 HDI. He arrived at my house today and we found that the dipstick had lifted (about 1.5 -2 inches). He had just done a 600 mile round trip, but before he went he had checked the oil level and noticed the same thing. Anybody know why this could be happening?

[GreenV8S]

Sounds like the crank case is pressurising, so I would guess you have either a blocked breather or a massive amount of blow-by from a damaged piston/bore.

[the daddy]

Any easy check to find which one?

[GreenV8S]

If the engine still produces decent power and sounds OK and isn't producing massive amounts of blue smoke, then it is probably a blocked breather.

[Avocet]

If it isn't the breather, the next step would be a compression test.

[CombeMarshal]

Or, it could just be the little rubber 'o' ringe on the dipstick that has gone, If it's the same as on my Citroen, and it has just worked it's way out!

[pdmotors]

To be quite honest, i would go with the blocked breather, (crankcase). This is quite common.
Happy

[GasMonkey]

The Peugeot / Citroen HDi engine is sensitive to too much engine oil.

Has ur father recently topped up ?

Have seen plenty of these and previous generation TD (XUD9TE) chucking rods due to too much oil, though often difficult to quantify, many were recently service (not by me!)

Breathers are also a likely cause, they can block up if pootled around, they like to be worked.

GM

[the daddy]

Thanks guys - checked oil level and it was up to max so i've drained some off. Will also clean breathers. Many Thanks.