My wonderful day!! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*Jonnie Fraz* · 10-12-2008, 12:03 AM

So I am trying to diagnose a missing problem on my 90 single cam...mostly for smog. I decide to get my injectors rebuilt because I have gone through almost everything else, but that is another story.
I pick up my awsome rebuilt injectors and realy dont have time to install them right away since I am helping with another project. Once I get them installed and get the motor put back together I give it a try. Starts right up no prob. When I walk around to the front I am sprayed by a fine mist of Gas. (FUCK!!) Turn the car off right away.
Pull the rail and injectors I have two upper o-rings that worked there way outta the groove when I put them in the rail. The o-ring seem real loose in the groove so I am thinking that the new seals are wrong.
I head down to the local NAPA to get the right seals, figuring that going back to the injector place will cost more in gas to get there than the seals will cost. Dude at NAPA is way cool pulls out the aftermarket seals to compare them. They are the same...WTF. He checks two different brands they are the same. Ok I must have screwed up.

I install them again being very careful they stay in the groove. Bolt the rail back up, power up...they leak...(Fuck!) Tryed to tighten the rail a little more...stripped the manifold.
Call up Nissan to see if they have the seals...they do. OEM seals are a little bigger and they fit. Heilicoil manifold...Total pain in the ASS!!
Get it all back together...no leaks...Yea! Test drive it...still misses...(FUCK!)

The moral of the story...buy OEM seals in the first place. You really do not want a leak here.

Sorry for the major ramble...It was so fun!

icemhan_21 · 10-12-2008, 01:26 AM

sorry to hear that. hope you get it runnin pretty good!

SexPanda · 10-12-2008, 01:31 AM

Vasoline helps when replacing injector o-rings.... Petrolium based so it dissolves in gasoline, safe on rubber, etc.

Also helps with teh buttsecks too.

Silviaoneday · 10-12-2008, 01:45 AM

had the same problem, but one of the seals was cracked

Silviaoneday · 10-12-2008, 01:46 AM

LOL!!! thats funny.

Quote:

Originally Posted by SexPanda

Vasoline helps when replacing injector o-rings.... Petrolium based so it dissolves in gasoline, safe on rubber, etc.

Also helps with teh buttsecks too.

*Jonnie Fraz* · 10-12-2008, 10:55 AM

Quote:

Originally Posted by icemhan_21

sorry to hear that. hope you get it runnin pretty good!

It is funny the car runs fantastic on throttle. Cruzing it has this stupid mis- fire.
I have re-wired my injectors, changed: Plugs, wires, cap, rotor, and O2. I Seafoamed it, both through intake, and in the tank. Double checked ground to the motor. Just finished getting the injectors rebuilt....Three were leaking.
At this point I think that the car will pass Smog...I hope.

ni5mo240 · 10-13-2008, 02:52 AM

Hey Jon how's it going? Did you smog the car already? What's it failing on HC?

I10cruiser · 10-13-2008, 03:09 AM

haha half way i was thinking to myself. . this doesnt seem so happy

10-12-2008, 12:03 AM	#1
Jonnie Fraz Premium Member Join Date: Jan 2005 Location: Cali Age: 56 Posts: 1,371 Trader Rating: (29) Rides Gallery: Jonnie Fraz Feedback Score: 29 reviews	My wonderful day!! So I am trying to diagnose a missing problem on my 90 single cam...mostly for smog. I decide to get my injectors rebuilt because I have gone through almost everything else, but that is another story. I pick up my awsome rebuilt injectors and realy dont have time to install them right away since I am helping with another project. Once I get them installed and get the motor put back together I give it a try. Starts right up no prob. When I walk around to the front I am sprayed by a fine mist of Gas. (FUCK!!) Turn the car off right away. Pull the rail and injectors I have two upper o-rings that worked there way outta the groove when I put them in the rail. The o-ring seem real loose in the groove so I am thinking that the new seals are wrong. I head down to the local NAPA to get the right seals, figuring that going back to the injector place will cost more in gas to get there than the seals will cost. Dude at NAPA is way cool pulls out the aftermarket seals to compare them. They are the same...WTF. He checks two different brands they are the same. Ok I must have screwed up. I install them again being very careful they stay in the groove. Bolt the rail back up, power up...they leak...(Fuck!) Tryed to tighten the rail a little more...stripped the manifold. Call up Nissan to see if they have the seals...they do. OEM seals are a little bigger and they fit. Heilicoil manifold...Total pain in the ASS!! Get it all back together...no leaks...Yea! Test drive it...still misses...(FUCK!) The moral of the story...buy OEM seals in the first place. You really do not want a leak here. Sorry for the major ramble...It was so fun! __________________ Stealth-Custom-Fab.com

10-12-2008, 01:31 AM	#3
SexPanda Post Whore! Join Date: Jun 2007 Location: Where ever there is free beer Posts: 3,239 Trader Rating: (0) Feedback Score: 0 reviews	Vasoline helps when replacing injector o-rings.... Petrolium based so it dissolves in gasoline, safe on rubber, etc. Also helps with teh buttsecks too. __________________ BRAND NEW GReddy PRofec E-01 EBC for sale, Cheap!

10-13-2008, 02:52 AM	#7
ni5mo240 Zilvia Addict Join Date: Nov 2003 Location: Sacramento/Elk Grove, CA Age: 39 Posts: 908 Trader Rating: (11) Feedback Score: 11 reviews	Hey Jon how's it going? Did you smog the car already? What's it failing on HC? __________________ TUNAS. Jalostotitlan Jalisco

10-13-2008, 03:09 AM	#8
I10cruiser Post Whore! Join Date: Apr 2008 Location: los angeles Age: 36 Posts: 3,053 Trader Rating: (47) Rides Gallery: I10cruiser Feedback Score: 47 reviews	haha half way i was thinking to myself. . this doesnt seem so happy __________________

10-12-2008, 01:26 AM	#2
icemhan_21 Zilvia Member Join Date: Sep 2007 Location: hendersonville tn Posts: 275 Trader Rating: (2) Feedback Score: 2 reviews	sorry to hear that. hope you get it runnin pretty good!

10-12-2008, 01:45 AM	#4
Silviaoneday Zilvia Junkie Join Date: Dec 2007 Location: So Cal Posts: 472 Trader Rating: (9) Feedback Score: 9 reviews	had the same problem, but one of the seals was cracked