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#1 norriss47

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Posted 01 July 2017 - 09:11 PM

Started the BT up the other day after it had been idle for a few days. As I was backing out of the garage I noticed a bit of blue smoke at the rear. Should I he concerned with this? Have done 67000 k's thus far.

Edited by norriss47, 01 July 2017 - 09:13 PM.


#2 bucko

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Posted 02 July 2017 - 07:40 AM

Oil burning,
cheap oil maybe - change to better quality
Turbo seal are a possibility
Rings,valve guides
Is it only on start up?

#3 norriss47

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Posted 02 July 2017 - 09:03 AM

Thanks Bucko,

Still being serviced by MAZDA so the oil should be as per specs!!

I have only noticed it a couple of times when the ute has been idle for a couple of days. Haven't seen it at any other time. Oil level is unchanged between services. The turbo does make a squeaking noise when shutting down. Dealer says that is the turbo resetting itself.

 

Might drop in and have another chat to them tomorrow.



#4 Goose1981

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Posted 02 July 2017 - 11:29 AM

Take an intercooler hose off and see how much oil is on the pipe, might be time to fit a catch can. But there could be other problems too.



#5 bucko

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Posted 03 July 2017 - 12:31 AM

May pay to go to a turbo specialist for a second opinion..
Can't trust the bullshit from the stealers..

My BT50 was 7 months out of warranty when AC compressor shit it self - the dealer I bought from said bad luck out of warranty..
Drove to the next dealer and they got Mazda to replace ac compressor
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#6 BergDonk

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Posted 04 July 2017 - 04:55 PM

Cold weather without the preheater fully utilised can create blue smoke on cold starts.



#7 norriss47

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Posted 04 July 2017 - 05:25 PM

Dealer says it is probably a bit of unburnt fuel. They have also experienced it with some demo models and on checking couldn't find any faults. As I said it is only on the first start up. 



#8 Eggy

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Posted 09 July 2017 - 05:53 PM

Noticed mine did it today after sitting unused for a few days. Unconcerned, ran perfectly.



#9 Lakevic3795

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Posted 24 July 2017 - 10:00 AM

Often cold mornings, gooey fuel, seems not to occur much with our winter mix in Canberra, seems worse when travelling in outback and it gets cold. Maybe the winter fuel in the outback is not to full snowfields winter spec, I dont know really but my last cloud of smoke was when camped at -6 degC on Murrumbidgee recently. Maybe the Hay plains fuel is not full winter spec??

cheers

PeterM



#10 Frankp

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Posted 08 August 2017 - 12:25 PM

Cold weather without the preheater fully utilised can create blue smoke on cold starts.

I think BergDonk is on the money.

I used to just turn the key from off to start when starting the car.  On a trip to Tassie, starting this way on cold (in the minuses) mornings, it generated a lot of blue smoke.  My mate's nearly identical vehicle never smoked on start-up.  He said that after switching on the ignition he always waited until the glow-plug light went out before turning to "start" - especially on cold starts.  I followed his advice and no more smoke.

 

Cheers


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#11 TravellingSparky

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Posted 09 August 2017 - 09:53 AM

 

Cold weather without the preheater fully utilised can create blue smoke on cold starts.

I think BergDonk is on the money.

I used to just turn the key from off to start when starting the car.  On a trip to Tassie, starting this way on cold (in the minuses) mornings, it generated a lot of blue smoke.  My mate's nearly identical vehicle never smoked on start-up.  He said that after switching on the ignition he always waited until the glow-plug light went out before turning to "start" - especially on cold starts.  I followed his advice and no more smoke.

 

Cheers

 

Surely the dealer told you about the glow plugs when you purchased the car?  ALL diesel vehicles require the glow plug lamp to extinguish before you start the vehicle.  My habit is this - I jump into car and straight away turn ignition on to "ACCESSORIES" to start preheat of glowplugs, then I fasten my seatbelt and by that time glowplug light has gone out and I can start the car.



#12 poppa smurf

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Posted 09 August 2017 - 01:02 PM

simply unbelievable!!!!!!!!!!


 everyone calls me Poppa or simply Pops, have done for a long time now....call me what you want, chances are I won't hear you anyway..don't fret the small stuff......

2016 BT50 Hi-rider dual cab in aluminium, ARB reversing camera, ARB ascent canopy, second full river 60 amp deep cycle, 40 ltr engel, redarc 1225 BC_DC charger, ARB 80 watt rooftop solar panel, Titan draws with wings, Mazda supplied polished alloy bullbar, lightforce spotlights, ARB long range fuel tank, ARB supplied and fitted Old man emu suspension upgrade with 2"lift, 70 litre water tank with on call pump........plus many extra "tow features"....we tend to creep along the roads less travelled" preferring deserts to blacktop and wildlife to crowds....self employed partially retired not looking to go full retired as yet........love "fiddling with off road stuff"


#13 Frankp

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Posted 14 August 2017 - 11:39 PM

Surely the dealer told you about the glow plugs when you purchased the car?  ALL diesel vehicles require the glow plug lamp to extinguish before you start the vehicle. 

 

 

 

No, they didn't.  Lots of talk about how to use the bling, like connecting and using the phone and MP3  with bluetooth and other useless stuff, but not much about substantive mechanical stuff, like HDC, hill start assist, diff lock, shifting in and out of and use of high and low range.  Typical suburban dealer assuming typical suburban use by an assumed suburban tradie staying on blacktop - which I'm not.  In practice a mild climate makes the glow plug routine optional, not required.  You only need it when the vehicle has had a really cold soak.  



#14 poppa smurf

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Posted 15 August 2017 - 10:02 AM

the "glow plug routine" is far from "optional" in any climate, the time it takes to fire up the glow plugs (and therefore warm and prepare the combustion chamber in readiness for combustion) is utilised by "other" processes of the electronics side of the engine in establishing parameters for a smooth start up and idle

 

I, and Mazda, strongly advise using the preignition procedure and the use of the glow plugs at all times regardless of temperature......the engine management system will decide if they are needed or not,... it, and its designers,  are far smarter than any of us

 

page 82 of the manual  clearly states, and I quote....... "switch ignition on and wait until the glow plug indicator goes off"...... nowhere does it state "you decide if needed or not dependent on temperature"

 

but I guess we could go back to the days of a can of ether and a fire under the sump to get them going (which incidentally I have done to a couple of dozers and scrapers in freezing weather)


Edited by craig1, 15 August 2017 - 05:49 PM.

 everyone calls me Poppa or simply Pops, have done for a long time now....call me what you want, chances are I won't hear you anyway..don't fret the small stuff......

2016 BT50 Hi-rider dual cab in aluminium, ARB reversing camera, ARB ascent canopy, second full river 60 amp deep cycle, 40 ltr engel, redarc 1225 BC_DC charger, ARB 80 watt rooftop solar panel, Titan draws with wings, Mazda supplied polished alloy bullbar, lightforce spotlights, ARB long range fuel tank, ARB supplied and fitted Old man emu suspension upgrade with 2"lift, 70 litre water tank with on call pump........plus many extra "tow features"....we tend to creep along the roads less travelled" preferring deserts to blacktop and wildlife to crowds....self employed partially retired not looking to go full retired as yet........love "fiddling with off road stuff"


#15 TravellingSparky

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Posted 16 August 2017 - 08:49 PM

 

Surely the dealer told you about the glow plugs when you purchased the car?  ALL diesel vehicles require the glow plug lamp to extinguish before you start the vehicle. 

 

 

 

No, they didn't.  Lots of talk about how to use the bling, like connecting and using the phone and MP3  with bluetooth and other useless stuff, but not much about substantive mechanical stuff, like HDC, hill start assist, diff lock, shifting in and out of and use of high and low range.  Typical suburban dealer assuming typical suburban use by an assumed suburban tradie staying on blacktop - which I'm not.  In practice a mild climate makes the glow plug routine optional, not required.  You only need it when the vehicle has had a really cold soak.  

 

Since when, ever, in the history of diesel engines has the "GLOW PLUG ROUTINE been OPTIONAL"??  Diesel engines are compression ignition - you require that first heat assist for the first firing.  ALWAYS use glow plugs on start-up.  Please refer to your owner guide also, odds are you may be screwing any warranty claim over too by starting the vehicle inappropriately.

 

You show your interests as "Off road, outback and remote area touring" yet you completely fail in this basic standard operating procedure.



#16 Frankp

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Posted 16 August 2017 - 09:37 PM

 

Since when, ever, in the history of diesel engines has the "GLOW PLUG ROUTINE been OPTIONAL"??  Diesel engines are compression ignition - you require that first heat assist for the first firing.  ALWAYS use glow plugs on start-up.  Please refer to your owner guide also, odds are you may be screwing any warranty claim over too by starting the vehicle inappropriately.

 

 

 

Didn't the previous poster say that?


Edited by Frankp, 16 August 2017 - 09:38 PM.


#17 bucko

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Posted 16 August 2017 - 09:46 PM

The author of post - states blue smoke when reversing out of garage-
Blue smoke is oil burning
White smoke, Generally means unburnt diesel fuel. Years ago had a diesel with a faulty glow plug and was like a steam train of white until cylinder warm up.,

#18 poppa smurf

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Posted 17 August 2017 - 10:19 AM

not sure if it is oil burning, I noticed my truck did this once when I fired up a little prematurely in the shed (happens when I get a bit excited) the smoke appeared as a blueish white, could easily be described as blue, possibly something to do with the light, or lack of, coming into the shed but definite diesel smell not oil

 

unburnt diesel is most certainly white  but under certain conditions it MAY appear blue

 

diesels are not happy animals under cold conditions, takes a little while to "settle"......bit like a steam train they like a little bit of time, don't like to be rushed until they are ready, then they are a different beast


 everyone calls me Poppa or simply Pops, have done for a long time now....call me what you want, chances are I won't hear you anyway..don't fret the small stuff......

2016 BT50 Hi-rider dual cab in aluminium, ARB reversing camera, ARB ascent canopy, second full river 60 amp deep cycle, 40 ltr engel, redarc 1225 BC_DC charger, ARB 80 watt rooftop solar panel, Titan draws with wings, Mazda supplied polished alloy bullbar, lightforce spotlights, ARB long range fuel tank, ARB supplied and fitted Old man emu suspension upgrade with 2"lift, 70 litre water tank with on call pump........plus many extra "tow features"....we tend to creep along the roads less travelled" preferring deserts to blacktop and wildlife to crowds....self employed partially retired not looking to go full retired as yet........love "fiddling with off road stuff"


#19 maccullagh

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Posted 17 August 2017 - 10:36 PM

I am certainly no expert on diesel but I do get a little blue smoke from time to time in the 1 or 2 seconds after startup. I also start straight away before the glow plug light goes out ( just me).

 

This 1 or 2 seconds would include the time for the gas to travel from the engine to the end of the exhaust system. 

 

I do not take any notice of what happens in the second or 2 after startup as I consider everything has to fall into place and get going.

 

Anything after a second or 2 gets my attention though.

 

I have seen engines of all types I know that are in good working conditions blow a little smoke at start from time to time.



#20 bigjon

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Posted 18 August 2017 - 06:24 PM

It might be a good idea to get into the habit of waiting the 2 or 3 seconds for the glow plugs to do there job they are there for a reason

 

I am certainly no expert on diesel but I do get a little blue smoke from time to time in the 1 or 2 seconds after startup. I also start straight away before the glow plug light goes out ( just me).

 

This 1 or 2 seconds would include the time for the gas to travel from the engine to the end of the exhaust system. 

 

I do not take any notice of what happens in the second or 2 after startup as I consider everything has to fall into place and get going.

 

Anything after a second or 2 gets my attention though.

 

I have seen engines of all types I know that are in good working conditions blow a little smoke at start from time to time.






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