How to Pull Fuel Rail and Injectors 3.1L V6 - Team Camaro Tech
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post #1 of 8 (permalink) Old Feb 4th, 07, 10:02 AM Thread Starter
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How to Pull Fuel Rail and Injectors 3.1L V6

I have my 92 Camaro 3.1L down to the Fuel Rail, Injectors, and Lower Intake Plenum (replacing the valve lifters)...

How do you get the Fuel Rail and Injectors out????????? This is a single fuel rail with injectors out each side at an angle so it won't lift straight up without bending the injectors...

If the injectors have to come out one at a time, how do you get them out individually.???

Also, how can I test the injectors and/or clean them before I re-assemble since they are a pain to get to once its back together..???
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post #2 of 8 (permalink) Old Feb 4th, 07, 11:03 AM
 
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

the injectors are installed with a rubber oring on them...this should allow you to move the rail around once unbolted and pull the injectors out while attached to the rail...at least this is my experience on all of gm`s other fi stuff...the rail side of the inj`s has a oring on it also. so you could remove the rail and then the individual inj`s...
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post #3 of 8 (permalink) Old Feb 5th, 07, 09:31 AM Thread Starter
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

Thanks, got it and them out... Just didn't want to pull too hard until I knew that was the right way to do it....
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post #4 of 8 (permalink) Old Feb 5th, 07, 09:57 AM
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

Use plenty of lube on the new O-rings when assembling, one can never have too much. I used petroleum jelly.

There should be an O-ring on top & bottom of the injectors, if it is of the Bosch design.

Are the new lifters pre-lubed? If not, put several into a tin coffee can, fill with oil to above the height of the lifter, and pump each lifter with a pushrod. This action will fill the lifter.

Coat each lifter with GM's EOS, then pour the rest into the crankcase.

Good luck.

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post #5 of 8 (permalink) Old Feb 5th, 07, 01:11 PM Thread Starter
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

Thanks... Found I have a bigger problem though... Two of the lifters were really bad and the cam lobes to go with them are shot.... Need to replace the camshaft so trying to decide if I can do that without an engine pull (and maybe the cam bearings also)... Trying to keep the $$ to a minimum but that cam has got to go...
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post #6 of 8 (permalink) Old Feb 5th, 07, 01:27 PM
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

you can test the injectors with an ohm meter. look for (i think) 12 ohms across the 2 terminals. a little high or a little low is ok, but when they go bad the ohms go down, and then pretty soon they go out one at a time.

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post #7 of 8 (permalink) Old Feb 5th, 07, 03:09 PM
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

With a V6, I don't see it to be a problem. Remove the radiator & A/C condensor out of the way, drop the oil pan, if needed, and pull out & install the camshaft.

Install new stuff, assembly lube the lobes and lifter faces, add a can of GM's EOS, change oil & filter, get two changes worth, because after break-in, you'll be changing them again.

New belt(s), antifreeze, hoses, tune-up kit, fuel filter, and other stuff, as you can see it snowballs.......

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post #8 of 8 (permalink) Old Feb 6th, 07, 06:58 AM Thread Starter
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Re: How to Pull Fuel Rail and Injectors 3.1L V6

The cam is out... Didn't have to pull the radiator.. Just dropped the fan down out of the way and there was enough room to pull the camshaft..
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