sheep911uk Posted March 27, 2021 Share Posted March 27, 2021 Hello all, following on from my previous not starting post, previously new battery fitted and now starts on the button however moved it from place of storage to home in preparation for mot I noticed a lot of blue smoke coming from the exhaust, should I be worried or is it a consequence of the car being stood for nearly 18 months without being started? Link to comment Share on other sites More sharing options...
Chris_911 Posted March 27, 2021 Share Posted March 27, 2021 I wouldn't necessarily be concerned. My car usually burns a bit of oil on start up if it has been left for a while. Besides a bit of upper cylinder lubrication after a lay up isn'y exactly a bad thing. Use it and monitor your oil consumption. Link to comment Share on other sites More sharing options...
njpcarrera32 Posted March 27, 2021 Share Posted March 27, 2021 Likewise. Recommend that it’s fully warmed up when you take it for the MOT otherwise the tester may fail it on emissions. Link to comment Share on other sites More sharing options...
sheep911uk Posted March 27, 2021 Author Share Posted March 27, 2021 Thanks all Link to comment Share on other sites More sharing options...
Ian Comerford Posted March 27, 2021 Share Posted March 27, 2021 It would be worth giving it an Italian tune up before your MoT, that should clear it out a bit Link to comment Share on other sites More sharing options...
sheep911uk Posted March 27, 2021 Author Share Posted March 27, 2021 Is that a good thrashing!!! Link to comment Share on other sites More sharing options...
Beaky Posted March 27, 2021 Share Posted March 27, 2021 1 hour ago, sheep911uk said: Is that a good thrashing!!! Allegedly officer! Link to comment Share on other sites More sharing options...
JLewis Posted March 27, 2021 Share Posted March 27, 2021 10 hours ago, sheep911uk said: Hello all, following on from my previous not starting post, previously new battery fitted and now starts on the button however moved it from place of storage to home in preparation for mot I noticed a lot of blue smoke coming from the exhaust, should I be worried or is it a consequence of the car being stood for nearly 18 months without being started? Mine booked in for an MOT on Friday for the first time since 2013 😊 Link to comment Share on other sites More sharing options...
sheep911uk Posted March 28, 2021 Author Share Posted March 28, 2021 I’m glad I’m not the only one who hasn’t driven their car much!! Link to comment Share on other sites More sharing options...
Ian Comerford Posted March 28, 2021 Share Posted March 28, 2021 14 hours ago, sheep911uk said: Is that a good thrashing!!! I don’t really like the term “thrashing” as it indicates a lack of mechanical sympathy, but a good drive using a decent range of revs is what it means Link to comment Share on other sites More sharing options...
mean in green Posted March 28, 2021 Share Posted March 28, 2021 It could just be oil that has leaked into the exchangers during storage, if so it will burn off after a while. See how it is after a few drives. Link to comment Share on other sites More sharing options...
sheep911uk Posted March 29, 2021 Author Share Posted March 29, 2021 Drove it again tonight but probably only quarter of a mile if that to my garage, how far should I drive it to properly warm it up. Link to comment Share on other sites More sharing options...
Chris_911 Posted March 29, 2021 Share Posted March 29, 2021 Well you've got an oil temperature gauge.... Link to comment Share on other sites More sharing options...
mean in green Posted March 29, 2021 Share Posted March 29, 2021 They take a while to fully get up to temperature, maybe longer than you think. Could you take it out for at least an hour or so somewhere? If you do just have a little oil on the exchangers that should help. Link to comment Share on other sites More sharing options...
sheep911uk Posted March 29, 2021 Author Share Posted March 29, 2021 What do you mean have a little oil on the exchangers? Link to comment Share on other sites More sharing options...
Chris_911 Posted March 30, 2021 Share Posted March 30, 2021 If you have a slight oil leak from your oil return tubes that may result in some oil finding its way onto the HEs. So as the HEs heat up this will burn off. Just take it for a good drive - an hour is a good suggestion. When my wife bought her Boxster we were sat in the Porsche dealership right at the end of the day completing the paperwork. The guys were moving the stock form the front of the showroom to their compound at the back. Watching that totally cured any sense of foreboding I had when I saw blue smoke on start up from my car. I was very surprised to see just how many of the very new cars had a bad smoking habit. And sure enough my wife's Boxster smoked occasionally. Link to comment Share on other sites More sharing options...
mean in green Posted March 30, 2021 Share Posted March 30, 2021 It's because the exchangers are at the bottom, so pretty much any engine oil weep is likely to end up there. However once it gets there the oil may not just drip off from the outside. If you look closely at the them you can see that the exchanger headers come directly from the cylinder heads then "disappear" into the exchanger metalwork that shrouds the headers themselves. Oil that leaks onto the exposed uppermost section of the headers then travels down and becomes trapped / collects inside the exchanger cavity, in turn giving the false impression that the motor is burning oil when actually it's just the oil that has dripped inside the exchangers that is being burnt off. That's why there's a very good chance a decent long drive might be all that's need for now, until you can establish the source of the leak or indeed if you are bothered about it. Link to comment Share on other sites More sharing options...
sheep911uk Posted March 30, 2021 Author Share Posted March 30, 2021 47 minutes ago, mean in green said: It's because the exchangers are at the bottom, so pretty much any engine oil weep is likely to end up there. However once it gets there the oil may not just drip off from the outside. If you look closely at the them you can see that the exchanger headers come directly from the cylinder heads then "disappear" into the exchanger metalwork that shrouds the headers themselves. Oil that leaks onto the exposed uppermost section of the headers then travels down and becomes trapped / collects inside the exchanger cavity, in turn giving the false impression that the motor is burning oil when actually it's just the oil that has dripped inside the exchangers that is being burnt off. That's why there's a very good chance a decent long drive might be all that's need for now, until you can establish the source of the leak or indeed if you are bothered about it. Thank you Link to comment Share on other sites More sharing options...
sheep911uk Posted August 5, 2021 Author Share Posted August 5, 2021 I have changed the fan belt and no smoke on start up and it then seems to smoke a few minutes later after idling when it starts to get hot. Link to comment Share on other sites More sharing options...
mean in green Posted August 5, 2021 Share Posted August 5, 2021 It's just a thought but what oil is in it? If it's a bit on the thin side you could look at changing to something a little thicker, like a 20w-50. Porsche even list 10w-60 now for our old irons. Link to comment Share on other sites More sharing options...
Nige Posted August 5, 2021 Share Posted August 5, 2021 Don't let it sit idling worst you can do, drive it! Link to comment Share on other sites More sharing options...
Nige Posted August 5, 2021 Share Posted August 5, 2021 On warm up a 3.2 runs overly rich, this washes the oil from the valve guides which then burns off through the exhaust, whilst prematurely wearing out your valve guides. Start it then drive it. Link to comment Share on other sites More sharing options...
sheep911uk Posted August 6, 2021 Author Share Posted August 6, 2021 Thanks Nige Link to comment Share on other sites More sharing options...
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