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Replacing injectors. 

 

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 Post subject: Replacing injectors.
Posted: Thu Nov 22, 2007 12:54 pm 
Getting Side Ways
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Ride: XW, EL, Territory, VFR800

Power: 129 rwkw

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SA, Australia

I replaced my motor a couple of months back and two of the injectors in it are making a hell of a noise. Ticking like crazy. I know installing bigger injectors to a reasonably standard motor will do SFA.

So I have questions...

1. What do standard injectors flow? 19lb I think I've read.
2. I've found this cheap set of 22lb injectors saying they'd suite Falcons. They look alright? ... http://cgi.ebay.com.au/ws/eBayISAPI.dll ... 0182748050
3. Are injectors easy enough to replace? It looks like a fairly easy job.

Any help would be great thank guys.
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Posted: Thu Nov 22, 2007 1:21 pm 
Getting Side Ways
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Reco injectors are good if theyre done properly with the right equipment, most are bodgy so-called 'specialists'.

Here is a write up on how much is involved in reco'ing injectors properly

http://www.cruzinperformance.com/injsteps.html

I bought a set of "reco" injectors off eBay and was disappointed so i spent $300 a brand new set from this mob (second one down)

http://www.injectorsonline.com/indivprod.php?c=1

Replacing them is easy:

First pop the boot open and remove the cap and unplug the fuel pump connector. Run the car till it stalls and crank for a few seconds to release fuel pressure.

Theres is four bolts to remove to loosen the fuel rail. Remove the clips that hold the injector onto the rail and the clip for the wiring plug.

Try to pull out all the injectors from the head first then twist/turn each injector from the fuel rail.

Clean out any crap where the injector was. When refitting them put some oil on the o-rings. Push each injector into the head then push the fuel rail onto all the injectors. Attach wiring plugs and clips and tighten the four bolts.

I removed a few little things (like throttle body bracket and brake booster hose, throttle cable, unplugged some wiring) just to make life easier.

Oh and dont forget to plug the fuel pump connector back together or you will be cranking the motor over all day wondering what the hell's wrong with it!!
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Posted: Thu Nov 22, 2007 2:29 pm 
Stock as a Rock
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Hi There

You are aware the ones in the EBay link are $55 EACH ???

The same guy sells a set of 6 standard recoed ones for
about $100 exchange.
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Posted: Thu Nov 22, 2007 3:56 pm 
Getting Side Ways
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Ride: XW, EL, Territory, VFR800

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SA, Australia

Thanks for the help guys. I didn't realise they were $55 each. Just re-read it. Bloody rip off! Helpful tips fordfairmont. Thanks.
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Posted: Fri Nov 23, 2007 11:42 am 
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would ticking injectors fu.k around with the performance or the fuel economy of the car i got my injectors cleaned and seals changed 8 thousand kms ago but they make ticking noices

 

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Posted: Fri Nov 23, 2007 11:47 am 
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Theyre supposed to tick. But i assume the ticking noises Mongoose is talking about is overly loud and not normal
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Posted: Fri Nov 23, 2007 12:06 pm 
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ok yeah i thought so u only can hear mine wen the bonnets up

 

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Posted: Sat Nov 24, 2007 12:44 am 
Getting Side Ways
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SA, Australia

Nah mate. I know injector tick. This is just loud as on cylinder 2 and intermittent on cylinder 4.
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