priming new turbos? - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

MADsteve · 17th July 2006, 10:39 AM

What's the best way to prime both of my new turbos (once fitted) to avoid them going bang, the first time I turn the key?

I know it involves cranking the engine by hand, usually, but I can't remember the more finite details

Steve

tarmac terror · 17th July 2006, 10:59 AM

Hi Steve, probably be best to remove all the plugs and crank it over using the starter. Much easier on the knuckles LOL. Also I would pour some fresh oil into the turbo's oil gallery's and gently turn the shafts by hand a couple of times to get some oil into them prior to fitting.
Hope this helps.

TT

gtr mart · 17th July 2006, 11:15 AM

a friend of mine had rebuilt his renault 5 turbo and put a nice turbo on it. When he restarted it, he didnt prime the turbo, not crank the engine he just turned the key. the thing made a magificent screech on start up and I think he scored the turbo bearings or something as it was smoking like a bastid after a while.

After that, I think when he refitted it, he filled the turbo with oil as suggested above and then crank on the starter so you build pressure.

On the rb you should be ok to just remove the plug from the cas sensor rather than go to the bother of removing all the plugs and coil packs.

If you can get access to the turbo oil return then you can crank until oil appears from there and then you know you have oil around the entire circut. not sure how practical this is though.

ANDY H · 17th July 2006, 06:18 PM

pop the plugs out and get the oil presure up!

tweenierob · 17th July 2006, 10:37 PM

Agreed, remove the plugs so the pump builds pressure up quicker.
Easy way to shorten the starter motors life if you leave em in.

Rob

MADsteve · 17th July 2006, 10:53 PM

forgive me for sounding a bit dumb, but when you all mention 'plugs' I take it you mean spark plugs?

Steve

ANDY H · 17th July 2006, 11:10 PM

yep! just crank the engine over until the oil presure comes up ,job done!

skylinegtr0415 · 18th July 2006, 12:23 PM

Steve,

I think the easiest way to prime the turbo is first pull out the fuse for the fuel pump (15amp), open the top rocker cover, and unplug the coil pack's plugs/connects (not the spark plugs itselves), which is much easier.

Then crank the car with the key (starter motor),so make sure the battery is fully charged, cos it will drain lots of current, until the oil pressure light comes off, then everything should be primed.

Good Luck

Regards

Ken

BBD · 21st July 2006, 04:09 AM

1) remove crank sensor plug
2) Crank up engine a few turns at a time till oil comes out
3) Plug the tubbies
4) enjoy

17th July 2006, 10:39 AM	#1 (permalink)
MADsteve GTR Register Member Join Date: Nov 2004 Location: GTR Heaven Posts: 2,294	priming new turbos? What's the best way to prime both of my new turbos (once fitted) to avoid them going bang, the first time I turn the key? I know it involves cranking the engine by hand, usually, but I can't remember the more finite details Steve

17th July 2006, 10:37 PM	#5 (permalink)
tweenierob GTROC Member Join Date: Aug 2003 Location: herts Posts: 1,838	Agreed, remove the plugs so the pump builds pressure up quicker. Easy way to shorten the starter motors life if you leave em in. Rob __________________ 599hp R35 Gtr www.trracing.co.uk T62 Going back on for track WTF!! :D Addicted to Snett!! Roll on the 24th of jan £99 rocks!

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17th July 2006, 10:59 AM	#2 (permalink)
tarmac terror New Users Join Date: Jul 2003 Location: Hampshire, but Scottish through and through! Posts: 2,637	Hi Steve, probably be best to remove all the plugs and crank it over using the starter. Much easier on the knuckles LOL. Also I would pour some fresh oil into the turbo's oil gallery's and gently turn the shafts by hand a couple of times to get some oil into them prior to fitting. Hope this helps. TT

17th July 2006, 11:15 AM	#3 (permalink)
gtr mart GTR Register Member Join Date: Mar 2004 Posts: 1,637	a friend of mine had rebuilt his renault 5 turbo and put a nice turbo on it. When he restarted it, he didnt prime the turbo, not crank the engine he just turned the key. the thing made a magificent screech on start up and I think he scored the turbo bearings or something as it was smoking like a bastid after a while. After that, I think when he refitted it, he filled the turbo with oil as suggested above and then crank on the starter so you build pressure. On the rb you should be ok to just remove the plug from the cas sensor rather than go to the bother of removing all the plugs and coil packs. If you can get access to the turbo oil return then you can crank until oil appears from there and then you know you have oil around the entire circut. not sure how practical this is though.

17th July 2006, 06:18 PM	#4 (permalink)
ANDY H GTR Register Member Join Date: Mar 2005 Location: maidstone Posts: 1,240	pop the plugs out and get the oil presure up!

17th July 2006, 10:53 PM	#6 (permalink)
MADsteve GTR Register Member Join Date: Nov 2004 Location: GTR Heaven Posts: 2,294	forgive me for sounding a bit dumb, but when you all mention 'plugs' I take it you mean spark plugs? Steve

17th July 2006, 11:10 PM	#7 (permalink)
ANDY H GTR Register Member Join Date: Mar 2005 Location: maidstone Posts: 1,240	yep! just crank the engine over until the oil presure comes up ,job done!

18th July 2006, 12:23 PM	#8 (permalink)
skylinegtr0415 GTR Register Member Join Date: Oct 2005 Posts: 60	Steve, I think the easiest way to prime the turbo is first pull out the fuse for the fuel pump (15amp), open the top rocker cover, and unplug the coil pack's plugs/connects (not the spark plugs itselves), which is much easier. Then crank the car with the key (starter motor),so make sure the battery is fully charged, cos it will drain lots of current, until the oil pressure light comes off, then everything should be primed. Good Luck Regards Ken

21st July 2006, 04:09 AM	#9 (permalink)
BBD New Users Join Date: May 2002 Location: Dubai, UAE Posts: 1,844	1) remove crank sensor plug 2) Crank up engine a few turns at a time till oil comes out 3) Plug the tubbies 4) enjoy