Hi there. My 300tdi got some issue recently, been reading all the threads but none seem to match exactly..
The disco got 180000 on clock, but engine was from a range with less mileage. Has always run well over last 7years.
Took it to spain couple of years ago, up the Sierra Nevada 3000m skiing. Was bloody cold! At that point I had semisynthetic GTX oil in to cope with the cold..
on leaving the Sierra a few days parked at sub zero C. It smoked blue like a smoke machine for a little while.. Downhill steep. Totally cleared in 10min where it was a bit flatter..
it has since been getting a little more smoke over time but not bad at all..
Untill it completely covered the hole car in blue smoke!! Could see nothing at a junction. My workshop was round the corner.. Power was fine. More smoke when accelerating than at deceleration..
While running took oil filler cap off.. Lots of pressure!!!! And a Little smoke came out. Checked cyclone was working fine.. Oil dripping out of exhaust joint after turbo.
the next day I degreased the engine and drove it into workshop. Definitely little smokey but not as badly as before, also no pressure at oil filler any more..? Cold engine..
Turbo: took hoses off. Little play side to side but no fore and aft. So according to gencoe website ok. While running no oil on cold side.
removed manifolds: no oil in inlet manifold, none in exhaust.. Slight oily gasket at cylinder 4
Started engine without manifolds.. Engine cold, this is the next day..
oil started collecting in all four exhaust ports?!? The rear two it was puddling quite soon...
I started to remove head.. I know now I should have done a compression test, but don't have a tester..
to my surprise the gasket seems to be in good condition..
That's as far as I've got.. Btw first real engine work for me, apart from my scooter rebuild 20 years ago..
Will clean it all up today find a straight edge and check head flatness..
What next?? Could it be piston rings? Or valve seals/guides? How to check..
anything else..?
All comments appreciated.. Well..
DD
The disco got 180000 on clock, but engine was from a range with less mileage. Has always run well over last 7years.
Took it to spain couple of years ago, up the Sierra Nevada 3000m skiing. Was bloody cold! At that point I had semisynthetic GTX oil in to cope with the cold..
on leaving the Sierra a few days parked at sub zero C. It smoked blue like a smoke machine for a little while.. Downhill steep. Totally cleared in 10min where it was a bit flatter..
it has since been getting a little more smoke over time but not bad at all..
Untill it completely covered the hole car in blue smoke!! Could see nothing at a junction. My workshop was round the corner.. Power was fine. More smoke when accelerating than at deceleration..
While running took oil filler cap off.. Lots of pressure!!!! And a Little smoke came out. Checked cyclone was working fine.. Oil dripping out of exhaust joint after turbo.
the next day I degreased the engine and drove it into workshop. Definitely little smokey but not as badly as before, also no pressure at oil filler any more..? Cold engine..
Turbo: took hoses off. Little play side to side but no fore and aft. So according to gencoe website ok. While running no oil on cold side.
removed manifolds: no oil in inlet manifold, none in exhaust.. Slight oily gasket at cylinder 4
Started engine without manifolds.. Engine cold, this is the next day..
oil started collecting in all four exhaust ports?!? The rear two it was puddling quite soon...
I started to remove head.. I know now I should have done a compression test, but don't have a tester..
to my surprise the gasket seems to be in good condition..
That's as far as I've got.. Btw first real engine work for me, apart from my scooter rebuild 20 years ago..
Will clean it all up today find a straight edge and check head flatness..
What next?? Could it be piston rings? Or valve seals/guides? How to check..
anything else..?
All comments appreciated.. Well..
DD
