Turbo seals? maybe?......

onelife · Feb 24, 2009

Thanks for any help, there's a few answers on the forum, but just want a confirmation or not, if possible.

300tdi defender

starting from cold; starts with a puff of black smoke, let it tick over for some 15secs, gently pressing throttle a couple of times at standstill before moving off. seemingly no problem.

however at standstill at around 1500/1600 rpm (hard to tell without rev counter, but i think it's about that, or just above when the turbo kicks in) there's puffs of blue smoke, this disappears when above the above revs, and only when the engine is cold. no loss of oil.

is it the turbo seals? if so how easy/cost to change them?

tahnks again, cheers, mark

brnocz · Feb 24, 2009

unless you are able to do the job i would buy a replacement turbo unit, 1 thing springs to mind tho if it were the seals in the turbo you would get white smoke this would be more visual if you were to let the engine tick over for a few mins then rev it up, and then you would get a thick white smoke, with out having more history of the problem. ie oil showing on the turbo,if a seal goes there is no inbetween it would smoke all the time, can you give more detail

brnocz · Feb 24, 2009

it sounds more like a fuel issue than a turbo issue

Series71 · Feb 24, 2009

i'd change my air filter and whip my intercooler out and clean it

onelife · Feb 24, 2009

thx for the replies;

no white smoke, only blue. no loss of compression either.

"oil showing on the turbo"? sorry for the daft question, but where on/in the turbo can I check?

i'll check tomorrow re: revs and turbo signs of oil and get back to you.

thx again, mark

brnocz · Feb 24, 2009

have you changd the fuel filter, another point you mentioned was its not using oil,if seals had gone you would be using oil, have you noticed a drop in power,

onelife · Feb 24, 2009

serviced less than 1K ago, with filters and oils etc.

I'll check the intercooler, thx, mark

brnocz · Feb 24, 2009

remove the large pipe from the cooler to the turbo and you should be able to see inside the turbo fins

Series71 · Feb 24, 2009

when i sucked a load of my air filter after a wet play session in salisbury into my intercooler i had blue smoke and a very slow discovery !

onelife · Feb 24, 2009

fuel filter, done 6K ago.

no drop in power.

Series71 · Feb 24, 2009

no drop in power....is yer turbo whistling at yer still when you drive ?

brnocz · Feb 24, 2009

if you had a intake of water in to the air filter and that went into the engine, depending how much its could have done 2 or 3 things and 1 could be a head gasket, it could be a piston, or a piston ring

onelife · Feb 24, 2009

no, no turbo whistling.

no intake of water.

i only noticed it after a brief trip to the alps, just wondered if making the turbo struggle up steep hills in thin air, does any damage?

thx again, mark

Series71 · Feb 24, 2009

like the man said whip the pipe off the turbo and check it's not all clogged up to begin with....where in hampshire are you ? i'm just over the border dorsetshire side.

onelife · Feb 24, 2009

yes thx, i'll take the pipe off tomorrow and have a look. near fareham.

Series71 · Feb 24, 2009

ok if yer having problems pop over i'm in cranborne which is about 10 miles north of ringwood aboot 1/2 mile from the border !

onelife · Feb 24, 2009

many thx for your offer, this is why i love owning a landy.

boydy1989 · Feb 24, 2009

a puff of blue smoke on opening of the throttle sounds to me like its probably not the turbo.

Check the crankcase cyclone breather on the side of the engine - mine has stopped working which is resulting it opil being pulled into the turbo, so when you rev it from cold, it pulls this settled oil in in a 'lump' an you get blue smoke. Then, when its warm, the oil is vapourised so you can't see any smoke.

If it was turbo, rings or valve guides, i would expect the smoke to get worse when it was warm, as thie oil is thinner.

Take this breather off, and look at how oily it is where it joins the air intake.

CharlesY · Feb 24, 2009

boydy1989 said:
a puff of blue smoke on opening of the throttle sounds to me like its probably not the turbo.

Check the crankcase cyclone breather on the side of the engine - mine has stopped working which is resulting it opil being pulled into the turbo, so when you rev it from cold, it pulls this settled oil in in a 'lump' an you get blue smoke. Then, when its warm, the oil is vapourised so you can't see any smoke.

If it was turbo, rings or valve guides, i would expect the smoke to get worse when it was warm, as thie oil is thinner.

Take this breather off, and look at how oily it is where it joins the air intake.

He's your man .... take his advice.

There is always a little oil wandering around turbo diesels, and it eventually reaches a cylinder.

If the car is going fine, not using oil, running with clean exhaust on a 70 mph cruise, then stop worrying. Loads of Landyzoners are wishing right now their Landies could do that!

CharlesY

boydy1989 · Feb 24, 2009

wow... the respect of uncle charlsey...

if your really bothered ill try an get me mate to send me a pic of my 300TDi when i started it after it had sat for a week or so.

Turbo seals? maybe?......

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