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Fuel injectors

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

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2002VolvoC70
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Fuel injectors

Post by 2002VolvoC70 » Sat Apr 20, 2019 9:25 am

Replaced all the fuel injectors and now a leak at the rail. I don't know if I am misunderstanding the process but the protector plate that keeps the injectors in place does not line up correctly to the fuel rail. *A notch under the electric connector of the new injectors doesn't fit firmly at the injectors. The injectors slightly wobble and the seal/O ring is completely in the rail. It's as if I have the wrong injectors (like the electric connector are reversed) What should I do?



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oragex
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Re: Fuel injectors

Post by oragex » Sat Apr 20, 2019 12:00 pm

I show some details here, hope it helps. That plate with an angle does slide on a notch on each side of the injectors




2003 2.4i S60 automatic 125k miles
DIY Volvo repairs videos https://www.youtube.com/playlist?list=P ... s0FSVSOT_c

2002VolvoC70
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Re: Fuel injectors

Post by 2002VolvoC70 » Sat Apr 20, 2019 1:26 pm

I did follow these steps, however leak from the fuel rail. My thoughts are to remove and readjust



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Re: Fuel injectors

Post by EngineeringBloke » Sat Apr 20, 2019 8:33 pm

The fuel injectors have a shallow grove along 2 sides. The U-shaped cutouts in the retaining strip have to engage into that grove on all of the injectors, plus the adapter that holds the fuel line into the rail. As you tighten the 3 bolts holding that strip down to the rail, it is hard to see how the injectors could wobble.

1. The injectors are held by the strip.
2. The strip is held to the rail by the 3 bolts.

And you should be using a lubricant (Vaseline, oil or Superlube synthetic grease) on the o-rings, but the injectors have to be held firmly.

If you pull the rail out and post a picture, we may be able to quickly let you know what's up.



2002VolvoC70
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Re: Fuel injectors

Post by 2002VolvoC70 » Sun Apr 21, 2019 1:00 am

Thanks I figured out that not all the o rings on the new injectors were fitting in the fuel rail tightly.



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Re: Fuel injectors

Post by oragex » Sun Apr 21, 2019 3:59 pm

On each injector there are two o-rings of different size. The thinner goes at the injector's tip


2003 2.4i S60 automatic 125k miles
DIY Volvo repairs videos https://www.youtube.com/playlist?list=P ... s0FSVSOT_c

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