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06-16-2008
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#1 |
 
Join Date: Dec 2005
Location: Las Vegas
Posts: 108
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Big injector sealing problem
My first attempt with new accel injectors didn't go as planned. Started the car and there was gas everywhere.
 I did the installation based on different comments I have read on the forum, but I guess I missed something. I used the o rings that came with the accel injectors since they seemed to be the same size as the old ones and removed the o rings on the primaries. I know you guys have been talking about the larger o rings, so I'm wondering if that will solve my problem? Thank you for your input!
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If you don't put the miles on it, someone else will... |
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06-16-2008
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#2 |
Join Date: Apr 2006
Location: Ideho
Posts: 2,653
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Re: Big injector sealing problem
Mikko,
Give Jeff a call (206) 755-0976 I don't think he would mind helping at all.
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[I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I] |
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06-16-2008
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#3 |
 
Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,381
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Re: Big injector sealing problem
Can you tell where the gas is coming from? If it is leaking out as soon as you turn the key on, without starting, it could be from the fuel feed & return pipe block or the top injector o-ring to the fuel rail.
 Have someone else turn the key on momentarily while you watch.
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. Last edited by A26B; 06-17-2008 at 12:20 PM. |
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06-16-2008
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#4 |
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Join Date: Dec 2005
Location: Las Vegas
Posts: 108
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Re: Big injector sealing problem
I will have to do the test tonight. All I know that during that one minute I had the car running it dumped a lot of gas in the valley that then drained on the garage floor.
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If you don't put the miles on it, someone else will... |
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06-17-2008
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#5 |
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Join Date: Jan 2004
Location: Portland, OR
Posts: 1,057
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Re: Big injector sealing problem
Did you disconnect the fuel rail from the block with the two lines coming into it when you did the install? If so you could have a sealing problem there - 2 o-rings in the block which need to line up in the grooves. When I disassembled my fuel inlet block the o-rings inside were mashed and torn.
More likely however is a sealing issue where the injectors mate to the fuel rail. With close to 50psi it doesn't take much to get a leak. I had a similar issue once - turned out I somehow took a little chunk out of an o-ring during the install resulting in fuel spraying into the valley. Also could be that you didn't get one of the clips onto its slot on the fuel rail properly. Don't worry about anything on the low end of the injector - you wouldn't have fuel in the valley from a problem with the lower O-ring.
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Robert ZR-1 Net Registry Oregon State Director 91 ZR-1 #431 Black/Black LPE 368 |
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06-17-2008
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#6 | |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,648
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Re: Big injector sealing problem
Quote:
Don't think that you're the first guy to not get it right on the first plenum pull. I had to pull my plenum 3 times when I installed my Accels...  Good luck! Crabs
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
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06-17-2008
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#7 |
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Join Date: Dec 2005
Location: Las Vegas
Posts: 108
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Re: Big injector sealing problem
I never disconnected the fuel rail from the block, so the problem shouldn't be there. Based on your comments and what I learned from Jeff it sounds like the problem is the upper o rings not going correctly into the fuel rail. Also it seems that I put the clips in wrong. I put the rail in before I put the clips and I gues I was supposed to do it the other way...
Anyways thank you for your comments. I feel a lot better about it now and I'm anctious to go try it again today. Is it ok to turn the power on with the plenum off to prime the system to look for leaks?
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If you don't put the miles on it, someone else will... |
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06-17-2008
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#8 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Big injector sealing problem
i am not `00 % positive about this but when i put my rcs in the 90 i cked for leaks and had 2 secondary leaks .i dont believe I had the power key on . hope this helps
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06-17-2008
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#9 | |
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Posts: n/a
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Re: Big injector sealing problem
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06-17-2008
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#10 | |
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Join Date: Dec 2003
Location: Arcadia,OK
Posts: 3,381
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Re: Big injector sealing problem
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Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed. |
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