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R32 Gtr Injector Cleaning - Need Some Basic Help

hazerb30

By hazerb30,
in Engines & Forced Induction

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hazerb30 Collaborator

hazerb30

Posted
Posted

Hey guys. My GTR has done 130'000 kms and now that i have a small cold idle problem i thought its time to clean the injectors anyway so i can be confident they are ok before i start changing anything else.

I read peoples posts here about aftermarket injectors but i think the Standard ones will satisfy my future needs. As long as they will be as good as new once serviced.

Ive got some questions...

Would a 89 GTR have top feed or side feed injectors ?

Is $180 ok price to clean/test injectors? (i will be supplying them the fuel rail with inj)

Which way is easier to get the fuel rail out. Remove the plenum or leave it on ?

Do i need to buy some o-rings or something when putting injectors back in ?

I read here inlet manifold gasket is $85. this is ridiculous if its true. Might just use loctite 515

adam-__- Grand Master

adam-__-

Posted
Posted

A GTR would have top feed injectors.

To clean and test flow your injectors, it's about $40 per injector. Six injectors make it about $240. I would say that $180 is a good price to get them cleaned and tested.

And it's a good idea to get new o-rings when you put your injectors back in. Some have got cheap o-rings from supercheap auto and they've leaked. They recommended genuine Nissan items.

I'm not too sure about your others questions mate.

SLIPPERY Experienced

SLIPPERY

Posted
Posted

leave the plenum on

just remove the two bolts that hold the fuel rail in

you also have to remove the breather hose that gets in the way and all associated vacuum and fuel hoses (obviously)

GeeTR Grand Master

GeeTR

Posted
Posted

Removal and install is too easy.

Common practice is to get them flowed, then place the highest flowing ones in at the rear to combat the unequal plenum flow. Agree with ^^ above, OEM rings and insulators as AM ones have leaked on me before. Little pit of petroleum based lube on install to keep them supple.

Cheapest inst always best. I have heard / seen some dodgey operations, with home made inj pulsing units and apprentice mishandling. Also please keep in mind they 18yrs old and new direct fitments SARDs are like $110 each

Ta

Cubes Grand Master

Cubes

Posted
Posted

$580 delivered from nengun for Sards thats extremely cheap.

Sard also have a lot of their range in twin sprays now. Of which I've seen a set of 800cc twinspray sards work extremely well at idle/low rpm; excellent atomization and great fuel economy. I was a little skeptical from the old sard single spray squirters. :thumbsup:

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