Reply With QuoteIt may be valve stem seals, they can come adrift from the posts and float with the valves.
I was using about 5-600ml in 5000km with a 300Tdi and found three floating.
Replaced them all and the oil consumption dropped to negligible.
Fossicker
Supporter200tdi Defender using some oil.. perhaps 1L every 5,000km, particularly on highway trips. Clutch is getting replaced this week so will check rear main seal.
Can anyone else provide me a check list that I can work my way through?
It ain't a big deal as she's done nearly 300k and trucks along like a beauty but you know the itch you get when these things happen..
94 Defender 200 TDi - 'The Hippo'
Moderator
It may be valve stem seals, they can come adrift from the posts and float with the valves.
I was using about 5-600ml in 5000km with a 300Tdi and found three floating.
Replaced them all and the oil consumption dropped to negligible.
Fossicker
SupporterDoes the head need to come off for that?Originally Posted by rick130
94 Defender 200 TDi - 'The Hippo'
Moderator
Nope.
Rotate the engine to TDC on whatever cylinder you are working on, this stops the valves falling into the cylinder and use a puller type valve spring compressor.
On a petrol engine you use an air adapter and compressed air in a spark plug hole to hold the valves closed but on a Tdi there is no combustion chamber in the head and the valves are square to the piston which holds them up when at TDC.
Fossicker
SupporterDefinitely was the valve stem seals.. they were like plastic!
94 Defender 200 TDi - 'The Hippo'
Moderator
Age and oil had made them rock hard.
Fossicker
SupporterThanks for your help Rick!
94 Defender 200 TDi - 'The Hippo'
Moderator
You're welcome.
That's what this forum is about.
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