how to install injectors
Teching In
Joined: Sep 2004
Posts: 47
Likes: 0
From: Lincoln NE
inj.
Originally Posted by WS6FirebirdTA00
come on guys help me out here!
Well i will be doing it on the f body for the first time tommorrow but i changed them on my truck, on that it was simple, unbolt the rails, unclip the wires running to each injector, the injectors just "snap" into the rail and "snap" into the intake make sure you use greese so you do not break o-rings if you break these it will cause you a lot of headaches!! good luck and if you want anymore info i will know more after tomorrow
Originally Posted by fbj69
go to ls1howto.com lots of info there.
Trending Topics
GREASE THE O-RINGS as stated before. I learned the hard way...no grease...broken o-rings...gas all over!!! Really it's not that hard though. The hardest part is just reaching all of them seeing as how half our motors are under the dash.
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iTrader: (33)
Joined: Jul 2002
Posts: 4,399
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From: Out on the farm in Central IL
Here is a cut and paste from the search.
Heres a shot:
-Release pressure from tank by removing gas cap.
-Ignition off/DC battery (I always forget the DC battery part)
-Use fuel disconnect tool to release fuel line from rail
-unplug fuel injectors
-remove 4 fuel rail to intake bolts
-make sure all wires, etc. are out of the way from rails and injectors
-lift up on rail, may have to wiggle side to side slightly, be careful once released from the intake, the leftover fuel may splash.
-drain fuel from rail and injectors by holding on end into a container.
-release injector clamp, pull injector out, again care for splash.
-lube o-rings of new injectors, oil, KY, vaseline...
-insert injector into rail at appropriate angle. use care as to not get o-ring caught on sides, and tearing it while trying to force the injector into its seat.
-clamp new injectors, with wire connector facing out.
-lube o-rings again for mating with intake
-place rail and injectors back onto intake, slightly wiggle into seated position
-tighten bolts 8ft lbs
-reconnect injector harness, and all other previously removed connections
-reconnect fuel line, simply push back onto rail until positive "click" is heard
-reconnect battery
-turn key to run position, look for leaks, no leaks, start and test. If the injectors are much larger tune immediately to avoid washing the cylinders.
Hope this helps.
If you cut any o-rings, a trip to Home Depot, Lowes etc.. look for 9/16x5/16 @ 1/8"thick o-rings. They work like a charm and no issues from heat or fuel.
Heres a shot:
-Release pressure from tank by removing gas cap.
-Ignition off/DC battery (I always forget the DC battery part)
-Use fuel disconnect tool to release fuel line from rail
-unplug fuel injectors
-remove 4 fuel rail to intake bolts
-make sure all wires, etc. are out of the way from rails and injectors
-lift up on rail, may have to wiggle side to side slightly, be careful once released from the intake, the leftover fuel may splash.
-drain fuel from rail and injectors by holding on end into a container.
-release injector clamp, pull injector out, again care for splash.
-lube o-rings of new injectors, oil, KY, vaseline...
-insert injector into rail at appropriate angle. use care as to not get o-ring caught on sides, and tearing it while trying to force the injector into its seat.
-clamp new injectors, with wire connector facing out.
-lube o-rings again for mating with intake
-place rail and injectors back onto intake, slightly wiggle into seated position
-tighten bolts 8ft lbs
-reconnect injector harness, and all other previously removed connections
-reconnect fuel line, simply push back onto rail until positive "click" is heard
-reconnect battery
-turn key to run position, look for leaks, no leaks, start and test. If the injectors are much larger tune immediately to avoid washing the cylinders.
Hope this helps.
If you cut any o-rings, a trip to Home Depot, Lowes etc.. look for 9/16x5/16 @ 1/8"thick o-rings. They work like a charm and no issues from heat or fuel.
Thread Starter
Joined: Mar 2003
Posts: 8,319
Likes: 1
From: North Carolina
ok thanks, im still waiting on a tune from predator to go from the factory 2000 injectors to the 28#ers. how bad would this be to run on? or should i jsut wait for the new tune
My 2000 runs great with the 28# injectors, no tune.
A tip: to unplug the injectors (the biggest PITA of the whole job), just push in on the wire clip as far as it will go, instead of trying to remove the clip. When it's pushed in the plug will release.
A tip: to unplug the injectors (the biggest PITA of the whole job), just push in on the wire clip as far as it will go, instead of trying to remove the clip. When it's pushed in the plug will release.
