smooooking!!!!!
Turbo Mini Forums

i did a search and i'm thinking it's the turbo
at start up no smoke when she warms up it's like a choo choo train!
under load no smoke when i stop here comes the smoke
jacked up front of car still smokes
i don't think it's running rich a/f meter says not
if i rev motor it still smokes
what do you guys think?

Hmmm - Usually turbos will blow a puff of smoke at startup from the turbine housing seal. Compressor housing seal is easy to determine by the presence of oil in the intercooler pipes or plenum.

If the turbo has a lot of oil 'seepage' around itself, this is another suggestion it's the turbo itself.

Have a closer inspection.

no seepage around turbo
head gasket is new just maybe 50 mi old
water level in radiator normal and so is water temp

Well ...... I hate to say it, but maybe you need to delve into the engine?

Valve guides/seals??

Hi there,
I had the exact same problem with mine and it would happen in the same stop start intervals you describe.

My car had a rebuilt engine and turbo.
I found that it was a turbo problem for me when i took the turbo off and chucked on just a plan old carby and exhaust and ran without turbo. My engine was sweet.
I went to the turbo specialist and he looked at my turbo but could not figure out what was wrong until he saw my oil return pipe and said it was too restrictive and the oil wasnt escaping the turbo fast enough therefore the oil was seeping out through the inlet and exhaust of the turbo.
Also my oil feed pipe was done in fexi hose that was alittle large in diameter copmpared to the standard metro steel pipe.
So i set to work to make my turbo oil return pipe larger and least restrictive by making a new one along with a new smaller oil feed pipe....which is smaller than standard metro steel pipe.

Meanwhile i was still running the car anyway...before i got around to making these up grades a gearbox bearing spat the dummy!
It stuffed everything...the motor is not healthy but with a new oil pump its ok, turbo rebuilt 2nd time this time with 2nd hand parts not new, rebuilt gearbox and have changed the turbo feed to solely filtered oil supply by doing a few mods.
Have fitted the redesigned oil return pipe and small feed pipe and now all is fine...no more smoking!

So i think you may have a turbo or turbo oil return/feed pipe problem. Hope my bad experience can be of use to you!

Jeremy

1975 MkIII Morris Mini 1300 Turbo, 100bhp...if only it could run long enough to drive it legally!

it's a stock metro turbo motor
i did change the feed pipe over to a braided line the return is still the stock return after further inspection found oil stains down the side of the down pipe

what colour smoke is it i cant work out from the description? what colou does petrol burn when its rich anyway is it black like diesel? i know water/steam is white and oil is blue.
think its quite an important bit of into to ad lol.

thanks guys will do
it's definately oil blueish smoke
yesterday i reved motor again and held it at high rpm's it actually stopped smoking so i think it's definatly the turbo