Rb25 Injector Help

[soarer987]

hey

i am having an issue with the new motor in my r33.

its a series 2 and the car over fuels big time at idle.

i changed the injectors out of the old motor and put them into the new motor and its miss firing but not over fueling any more.

the injectors removed are grey coloured (too much fuel) and the ones that went in are purple tops??

dose any one know what these purple tops are??

cheers James

[zebra]

Purple tops should be standard 25DET squirters.

If its missing now the plugs are probably fouled.

[soarer987]

yeah im taking the plugs out tonight to clean them.

the purple tops were in the first motor that went bang. i sold the old head of it and number 4 piston had very bad divits on the top of it.

im assuming due to detionation, but the engine was stock standard.

im assuming that number 4 injector must have been dropping in and out for a while and that is was caused the engine to go bang.

the missus who drives the car said it would just start miss firing and carrying on and then every time i was driving it it was fine.

getting back to the injectors are these purple tops hard to come by??

[gotRICE?]

Yeah purple are def stock 370's.

I wouldnt think they would be hard to come by. Unsure how many single ones you'd find as id say most would want to sell a set.

[jukic.j]

Uh I wanted to check which injectors I had on my skyline and I guess now they are the standard purples. What I tried to do was take off the two top screws to find a part number and f**k me I almost completely stripped the screw trying to get it out. Any trick to getting them out? Engine was warm when I tried so I let it cool to the metal was not expanded but still no luck. WD40 help?

[methz]

use a flat blade not a philips head, they r normally tight if they havent been undone before.

[AngryRB]

yeah im taking the plugs out tonight to clean them.

the purple tops were in the first motor that went bang. i sold the old head of it and number 4 piston had very bad divits on the top of it.

im assuming due to detionation, but the engine was stock standard.

im assuming that number 4 injector must have been dropping in and out for a while and that is was caused the engine to go bang.

the missus who drives the car said it would just start miss firing and carrying on and then every time i was driving it it was fine.

getting back to the injectors are these purple tops hard to come by??

maybe the just need a good test and clean, pitty i binned my old ones.

Edited February 10, 2013 by AngryRBGTX

[jukic.j]

Still wouldn't do it for me. Just started to f**k up the screws. Need some other way to undo them, if I use more force i'm going to strip them completely.

[scotty nm35]

Just ditch the rail, get a Neo rail and drop some 2000's in.

[jukic.j]

Puts me into modified class though

[AngryRB]

Puts me into modified class though

try some boiling water over it and hit the top of the screw driver with a hammer

you might have to grind the head off and drill it out, who would know it was not factory anyway? just paint it black , you'd have to know rbs to know if it werent stock.