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Smokey at start up : 2001 Gu 3ltr diesel

Posted: Wed Jun 16, 2010 12:43 pm
by Paul8693
As the title says, after a minute or 2 the pootrol starting up it decides to start blowing black/dark blue smoke, any one else had this? It goes away after straight away when driving aswell. It's a 2001 Gu 3ltr by the way.




EDIT:
tittle chenged for improved future search results

Kingy

Posted: Wed Jun 16, 2010 5:28 pm
by steelo1
Petrol or diesel 3 litre?

Posted: Wed Jun 16, 2010 5:30 pm
by Paul8693
steelo1 wrote:Petrol or diesel 3 litre?
diesel

re

Posted: Wed Jun 16, 2010 6:06 pm
by gqmudder91
its prob ur turbbo seal i may be wrong but my 2 cents

Posted: Wed Jun 16, 2010 7:22 pm
by BadMav
Valve guide seals, nothing to worry about unless it gets real bad.

Posted: Wed Jun 16, 2010 7:34 pm
by Paul8693
BadMav wrote:Valve guide seals, nothing to worry about unless it gets real bad.
hey mate thanks for the reply, what does that asactly mean, cant say im expert on cars

Posted: Thu Jun 17, 2010 6:46 am
by BadMav
The seal on the neck of every valve, they do wear but are more prone to hardening through age. They then weep oil down through the guides and will pool in the intake port. While running, the amount is neglible, but after sitting for a while, enough can seep through to produce smoke on start up.

Here's a pic of one (different engine) taken with the rocker cover off.

Image

Posted: Thu Jun 17, 2010 8:11 am
by Paul8693
BadMav wrote:The seal on the neck of every valve, they do wear but are more prone to hardening through age. They then weep oil down through the guides and will pool in the intake port. While running, the amount is neglible, but after sitting for a while, enough can seep through to produce smoke on start up.

Here's a pic of one (different engine) taken with the rocker cover off.

Image
Thanks for that, cleared it up for me. Is it a big job to get done?

Posted: Thu Jun 17, 2010 4:26 pm
by BadMav
Yeah but it can be done in a few hours if you know waht you're doing and have the right tools. Screwing an air fitting into the spark plug hole and keeping air pressure will stop the valves falling in, then you need a spring compressor to compress the valve springs and remove the collets. The seal themselves are easy, they just slip on. Unless you're really confident and have the tools, best to leave it to the mechanic.

Posted: Thu Jun 17, 2010 5:06 pm
by MyGQ
Maybe he has a smoke grenade?


sorry couldn't resist :)

Posted: Thu Jun 17, 2010 5:09 pm
by Paul8693
ive been waiting for the grenade jokes to begin. Anyway just to add to the topic it seems to only do it when its cold...

Posted: Thu Jun 17, 2010 6:18 pm
by of4x4
Paul8693 wrote:ive been waiting for the grenade jokes to begin. Anyway just to add to the topic it seems to only do it when its cold...
Just curious. How many K's has the motor done?

Posted: Thu Jun 17, 2010 7:11 pm
by Paul8693
of4x4 wrote:
Paul8693 wrote:ive been waiting for the grenade jokes to begin. Anyway just to add to the topic it seems to only do it when its cold...
Just curious. How many K's has the motor done?
its done 207,000 so not that much

Posted: Thu Jun 17, 2010 9:09 pm
by Clanky
BadMav wrote:Yeah but it can be done in a few hours if you know waht you're doing and have the right tools. Screwing an air fitting into the spark plug hole and keeping air pressure will stop the valves falling in, then you need a spring compressor to compress the valve springs and remove the collets. The seal themselves are easy, they just slip on. Unless you're really confident and have the tools, best to leave it to the mechanic.
Yeah, best leave it to a mechanic if you cant find the spark plug holes in that 3L diesel

:D

Posted: Fri Jun 18, 2010 3:54 pm
by BadMav
Yeah der, meant glow plugs. ha ha