Hi I have a puzzling ?.
I have a tjet 120 and it is burning a bit of oil more so after long engine braking after a hill.
Press accelerator and a puff of blue smoke and loss of power.
When starting car there is no smoke at all.
Iv changed turbo core/checked spark plugs and the plugs have oil on the threads and hydrocarbon build up on all spark plugs.
The blue smoke only happens after long downhills while engine braking.
The car has been doing this for quite some time
Any help would be great
Many thanks

Possible worn valve guides, if you're lucky, only worn valvestem seals...