me and a couple mates have just finished rebuilding our shared track sapph cossie but have a problem with a smoking engine. we stripped the engine down and had the crank reground. we also put a new cover on the oil pump.

before stripping it down, it did not smoke at all, but had terrible rumbling from the mains and big end bearings. now it runs smoothly, but smokes a lot, especially after idling a while.

i took off the boost hoses and they contain a lot of oil, and now looking at the turbo there is play in the bearing. why we didn't check this before we rebuilt everything i don't know. i suppose it was because it wasn't smoking, but now that we have proper oil pressure again i gess more oil is being forced out past the seal.

what i want to know is how much an overhaul normally costs, and what is involved. i would like to know the norm for england, as i think it will be way more in germany and i don't want to be ripped off. is it just a new plain bearing pushed in and a new seal kit, and if so, can't that be done diy? of the wheels are put back on the shaft in the same position, it doesn't need balancing again or what?