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fuel on intake manifold


steve Galant VR4.org Administrator
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Galant VR-4 org Post #: 326816 posted 04/11/06 06:44 AM     Remind Me!  Send Private Message   Edit Post      
I noticed a bit of gas puddled on top of my manifold. I assume there's a leak at one of the injectors. Is it going to be the top o-ring that would leak gas? If the bottom were leaking, it would be air right?



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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ken inn
BJ Titsengolf lifer


Galant VR-4 org Post #: 326825 posted 04/11/06 07:18 AM     Remind Me!  Send Private Message   Edit Post      
most of the time, the fuel is under really high pressure. it can be squirting out, hitting the top of the hood, and puddling. this is SO dangerous. maybe energizing the fuel pump lead in the engine bay and looking around might help you find it, but man, sparks, etc, with the hood open, if the spray is fine enough, it will explode



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atc250r Galant VR4.org Moderator
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Galant VR-4 org Post #: 326828 posted 04/11/06 07:23 AM     Remind Me!  Send Private Message   Edit Post      
Yeah, its probably the top seals. You can run the pump with the logger and if you need to you can pinch off the fuel return and that'll put a lot of pressure in the system.

John



"...if they're so into masochism, they should just really go all out and start modifying Mitsubishis. And using them as daily drivers." - Mike R.

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steve Galant VR4.org Administrator
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Galant VR-4 org Post #: 326833 posted 04/11/06 07:29 AM     Remind Me!  Send Private Message   Edit Post      
Thanks guys I will look at it ASAP.



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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JNR
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Galant VR-4 org Post #: 326877 posted 04/11/06 10:31 AM     Remind Me!  Send Private Message   Edit Post      
Just don't be this guy, chacking under there



I imagine you've done it before, but the O-rings/seals are easy enough to change...just use plenty of lube (dielectric grease, etc.), to keep them from tearing...

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atc250r Galant VR4.org Moderator
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Galant VR-4 org Post #: 326906 posted 04/11/06 11:20 AM     Remind Me!  Send Private Message   Edit Post      
Yeah, he just did them not too long ago which makes me wonder why they are leaking. Let us know how you make out Steve.

John



"...if they're so into masochism, they should just really go all out and start modifying Mitsubishis. And using them as daily drivers." - Mike R.

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steve Galant VR4.org Administrator
Key Fob Guy


Galant VR-4 org Post #: 326918 posted 04/11/06 11:32 AM     Remind Me!  Send Private Message   Edit Post      
Good news is I found it. Its the #1 (? closest to drivers side) injector pissing from the top seal. Now I have to source a new one with the quickness. Thanks again everyone. One more problem/solution for the archives. I couldn't find this problem when I did a search.



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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JNR
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Galant VR-4 org Post #: 326934 posted 04/11/06 12:05 PM     Remind Me!  Send Private Message   Edit Post      
Denso or FIC/PTE injectors?

I sourced my stuff locally and here's what it comes out to:

Denso only uses one (1) large @ 12mmOD/8mmID x 2.5mm Thick; the FIC (and imagine PTE) uses two O-rings, one large like the denso and a smaller one underneath that acts like a spacer: .450"OD/.210ID x .075 thk

I have some, but would be impractical to ship them, I'd think...

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steve Galant VR4.org Administrator
Key Fob Guy


Galant VR-4 org Post #: 326938 posted 04/11/06 12:15 PM     Remind Me!  Send Private Message   Edit Post      
They Evo8 injectors, so Denso. I think I need MD614805 based on this thread but I don't see that listed on the JNZ site. They have the insulator (MD087060) that goes in the head, and the small o-ring that goes on the injector (MD614813).

Actually, I will order the o-ring that goes on the injector too, in case that is torn. But I want to order the MD614805 too.



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo


Edited by steveVR4 (04/11/06 12:20 PM)

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Hertz Galant VR4.org Administrator
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Galant VR-4 org Post #: 326959 posted 04/11/06 01:13 PM     Remind Me!  Send Private Message   Edit Post      
Whew ... don't need another burnt VR-4, please.



Ryan Hertz

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steve Galant VR4.org Administrator
Key Fob Guy


Galant VR-4 org Post #: 326961 posted 04/11/06 01:16 PM     Remind Me!  Send Private Message   Edit Post      
Yeah right? Charles thread scares me. I've got JNZ on the phone, he said the top piece ( called the "injector sheet" ) doesn't really seal anything, its probably the o-ring. I ordered the o-rings since they were in stock. We'll see if thats the problem.



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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atc250r Galant VR4.org Moderator
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Galant VR-4 org Post #: 326974 posted 04/11/06 01:46 PM     Remind Me!  Send Private Message   Edit Post      
Go directly to Home Depot and get a small fire extinguisher before you head home.

John



"...if they're so into masochism, they should just really go all out and start modifying Mitsubishis. And using them as daily drivers." - Mike R.

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Polish
Dr. Pilosh Haagenscodyberger


Galant VR-4 org Post #: 326980 posted 04/11/06 02:00 PM     Remind Me!  Send Private Message   Edit Post      
I tried ordering everything new from Erik at JNZ when I put my 510's in. I asked for all 3 injectors seals/orings/whatevers and the rail isolators. He said there were only 2 per injector, the top oring and the lower seal in the head. Well I knew there were 3 because I had an injector with 3 on it. Anyway I just agreed on the 2. When I went to put them in I just used the black insulators/seals that were on the top of the 510's already. I did install new Orings, Rail isolators, and lower head seals though. So it seems the top things are reuseable. Well they better be because if mine leak after all this I will not be a happy camper.



My car site
Old GVR4 #1186/2000

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steve Galant VR4.org Administrator
Key Fob Guy


Galant VR-4 org Post #: 327053 posted 04/11/06 05:47 PM     Remind Me!  Send Private Message   Edit Post      
Quote:

Go directly to Home Depot and get a small fire extinguisher before you head home.

John




I left work real early today (before your post), but I'll be swiping the extinguisher from under the kitchen sink until I get these parts in.



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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steve Galant VR4.org Administrator
Key Fob Guy


Galant VR-4 org Post #: 327901 posted 04/13/06 08:19 PM     Remind Me!  Send Private Message   Edit Post      
Crisis averted. The O-ring on that injector must have gotten pinched and torn. I replaced all 4 for good measure. Took it for a ride and the idle feels more stable. Maybe tomorrow I can set up the baseline on the SAFC.




I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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atc250r Galant VR4.org Moderator
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Galant VR-4 org Post #: 327925 posted 04/13/06 09:04 PM     Remind Me!  Send Private Message   Edit Post      
OUCH! Good thing you noticed it Steve.

John



"...if they're so into masochism, they should just really go all out and start modifying Mitsubishis. And using them as daily drivers." - Mike R.

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GVR4ZUM
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Galant VR-4 org Post #: 328085 posted 04/14/06 09:34 AM     Remind Me!  Send Private Message   Edit Post      
Whew! I'm glad you fixed it Steve. I'll be oredering mine soon.



Aufrecht Melcher Grossaspach
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steve Galant VR4.org Administrator
Key Fob Guy


Galant VR-4 org Post #: 328216 posted 04/14/06 02:35 PM     Remind Me!  Send Private Message   Edit Post      
Ungrateful POS. Looks like the clutch slave cylinder sh*t the bed.



I know it's a foreign idea for most of us here, but you might want to try taking the car off jackstands.
-mitsuturbo

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Hertz Galant VR4.org Administrator
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Galant VR-4 org Post #: 328242 posted 04/14/06 03:46 PM     Remind Me!  Send Private Message   Edit Post      
When it rains it pours.



Ryan Hertz

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JNR
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Galant VR-4 org Post #: 328268 posted 04/14/06 04:51 PM     Remind Me!  Send Private Message   Edit Post      
It's raining men! (you guys with wives, will know that Lifetime jingle)

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HECDWS
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Galant VR-4 org Post #: 328489 posted 04/15/06 01:05 PM     Remind Me!  Send Private Message   Edit Post   
glad you caught that before anything serious happened. gotta love the relationship these cars maintain with us.

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