V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

How to install injectors?

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Old 02-03-2011, 06:28 PM
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Car: 1991 Z28
Engine: 5.7 TPI
Transmission: 700R4
How to install injectors?

OK, the injectors have been ordered for my 3.1. It looks tricky to get them in- all loaded in the fuel rail, they should be too splayed to get into the manifold as a unit. Or not??

My thought is to put one bank in the manifold; then lock the other bank in the fuel rail, press into the manifold and then lock down on the bank already installed.

Sound like a plan, or do those of you with experience have a more foolproof idea?

And use Vaseline or oil to lube the orings?

Thanks guys and gals!
Old 02-03-2011, 07:12 PM
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Car: 1988 camaro
Engine: cammed 3.1
Transmission: 700r4
Axle/Gears: 10 bolt 3.42
Re: How to install injectors?

When I did my f1ze injector swap I just put them on the fuel rail and pressed them into the manifold they will go in just fine just lay it over the manifold line up the injectors with the holes before you push the fuel rail down. I didn't need to use any oil or anything.
Old 02-03-2011, 07:40 PM
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Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: How to install injectors?

The injectors will be wobbly in the fuel rail because of the o rings. That way you can guide all 6 into their homes at the same time. Then push them down.
Old 02-03-2011, 07:55 PM
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Car: 1991 Z28
Engine: 5.7 TPI
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Re: How to install injectors?

Thanks guys! It it blows up, I am coming round to complain!!
Old 02-04-2011, 11:51 PM
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Car: 91' Firebird
Engine: 3.1 LH0 V6
Transmission: Auto 700R4
Axle/Gears: 3.23 limited slip
Re: How to install injectors?

Having a second set of hands to guide them in REALLY helps! Otherwise you'll be working with it for a while to keep one lined up while you try to adjust another one.
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