SMOKE SMOKE SMOKE!!
#1
Rennlist Member
Thread Starter
SMOKE SMOKE SMOKE!!
Hello All,
My 997s had been sitting a while... I needed to use a jump to start it and when it fired up it was blasting white/blue smoke everywhere... I let it idle for about 15/20mins and the smoke never subsided... Just keep pouring out. Any idea of what is causing this?
Thanks!!
Steve
My 997s had been sitting a while... I needed to use a jump to start it and when it fired up it was blasting white/blue smoke everywhere... I let it idle for about 15/20mins and the smoke never subsided... Just keep pouring out. Any idea of what is causing this?
Thanks!!
Steve
#2
Nordschleife Master
Since it's been sitting for long I wouldn't jump to serious conclusion as to what white smoke is associated with...
My vote goes to stale gas. Fill up with fresh gas and I believe you'll see a lot of improvement.
My vote goes to stale gas. Fill up with fresh gas and I believe you'll see a lot of improvement.
#3
Rennlist Member
How long is "been sitting awhile", months? And what is the model year - is it a 9A1 engine? Any oil leaks from where it was sitting - ground and engine?
Assuming the time has been months since it was last started, and there are no visible oil leaks on ground or around engine parts, and it is a 9A1 engine, then a first guess is you have some lingering/settled oil that will eventually burn out. If it is a 9A1 engine, and although they are marketed as dry sump, its not completely dry. Assuming it is remnant oil, run it to full operating temperature (has to be hot enough to burn off - short 5 min run won't help much), but don't rev it high just in case there is another issue. Keep an eye on the exhaust cloud, it should diminish as engine temps get high enough. If not, then you may have to flatbed it to a shop. But I am optimistic you will just burn off some old oil. Good luck.
Assuming the time has been months since it was last started, and there are no visible oil leaks on ground or around engine parts, and it is a 9A1 engine, then a first guess is you have some lingering/settled oil that will eventually burn out. If it is a 9A1 engine, and although they are marketed as dry sump, its not completely dry. Assuming it is remnant oil, run it to full operating temperature (has to be hot enough to burn off - short 5 min run won't help much), but don't rev it high just in case there is another issue. Keep an eye on the exhaust cloud, it should diminish as engine temps get high enough. If not, then you may have to flatbed it to a shop. But I am optimistic you will just burn off some old oil. Good luck.
#5
It could be the AOS, but it's more likely just oil which settled in the cylinders and is burning off.
#6
Nordschleife Master
it's M97 engine not DFI.
to the OP was there any gas stabilzer added to the gas before being put into storage?
to the OP was there any gas stabilzer added to the gas before being put into storage?
How long is "been sitting awhile", months? And what is the model year - is it a 9A1 engine? Any oil leaks from where it was sitting - ground and engine?
Assuming the time has been months since it was last started, and there are no visible oil leaks on ground or around engine parts, and it is a 9A1 engine, then a first guess is you have some lingering/settled oil that will eventually burn out. If it is a 9A1 engine, and although they are marketed as dry sump, its not completely dry. Assuming it is remnant oil, run it to full operating temperature (has to be hot enough to burn off - short 5 min run won't help much), but don't rev it high just in case there is another issue. Keep an eye on the exhaust cloud, it should diminish as engine temps get high enough. If not, then you may have to flatbed it to a shop. But I am optimistic you will just burn off some old oil. Good luck.
Assuming the time has been months since it was last started, and there are no visible oil leaks on ground or around engine parts, and it is a 9A1 engine, then a first guess is you have some lingering/settled oil that will eventually burn out. If it is a 9A1 engine, and although they are marketed as dry sump, its not completely dry. Assuming it is remnant oil, run it to full operating temperature (has to be hot enough to burn off - short 5 min run won't help much), but don't rev it high just in case there is another issue. Keep an eye on the exhaust cloud, it should diminish as engine temps get high enough. If not, then you may have to flatbed it to a shop. But I am optimistic you will just burn off some old oil. Good luck.
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#10
Rennlist Member
So, it's smoking like that and you let it idle for 15 minutes?
If it was oil in the cylinders it would clear in a minute at most.
In the future, if something doesn't seem right, shut it down and call the mechanic.
It could be bad gas but these engines are expensive enough to warrant
a trip to the shop to find out.
If it was oil in the cylinders it would clear in a minute at most.
In the future, if something doesn't seem right, shut it down and call the mechanic.
It could be bad gas but these engines are expensive enough to warrant
a trip to the shop to find out.
#12
AOS was most probable cause of the smoking. Take it to a competent mechanic before you do further harm to the engine by letting it idle for 20 minutes again hoping the problem will go away.