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Author Topic: Schrador valve problem *doing it now, help get me through this*  (Read 7373 times)
Chowder Head
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« on: August 30, 2005, 08:55:27 AM »

Okay, so here's the low down.  Sudnay, I installed my Kirban fuel regulator and I was trying to set the fuel pressure with my new gauge but it was getting dark.  So about 10 mins ago, I go out there and try to put it on the schrador valve but I have a little problem...it won't fit at all.  I've included pics with the attachements as well but it's still not going on.  Did they send me a wrong fitting or something? If I need a new extension, would it be okay to adjust the fuel by just guessing?  Reason being because my car was starving for fuel coming home from work last night and I could only go 30mph.....

Here are some pics.  Tell me what you think, thanks.


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« Last Edit: October 02, 2005, 07:48:39 AM by Chowder Head » Logged

-Michael

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« Reply #1 on: August 30, 2005, 09:03:01 AM »

NAPA sells adapters/fittings that will match it up.  Just bring in the guage, and find one that will reduce it's thread size down to that of the schrader valve.  Be sure and use teflon tape on all connections. 
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Chowder Head
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« Reply #2 on: August 30, 2005, 09:06:58 AM »

NAPA sells adapters/fittings that will match it up.  Just bring in the guage, and find one that will reduce it's thread size down to that of the schrader valve.  Be sure and use teflon tape on all connections. 
Would it be okay to guess on the fuel pressure for now until I get there so I can find tune it?  And does NAPA sell teflon tape as well?

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« Reply #3 on: August 30, 2005, 09:07:57 AM »

You can guess on it but drive very carefully....yes, they sell teflon tape.
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Chowder Head
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« Reply #4 on: August 30, 2005, 09:24:12 AM »

Okay, so that's it?  If I would of known that, I would make a GD thread about it, lol.

And to set it I go in this order correct?
Put gauge in, start up the car.  Remove vacuum line from regulator, adjust the psi with an allen wrench to about 40, put back vacuum line, retighten the nut and.....that's it, correct?
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« Reply #5 on: August 30, 2005, 09:42:43 AM »

Sweet, I just went out and adjusted it a little so it gave some more pressure and my car responds MUCH BETTER.  I'm going to go to NAPA shortly and get the gauge to find tune it but right now, my cars happy. Smiley

Thank you all once again,
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« Reply #6 on: August 30, 2005, 10:09:10 AM »

Glad I could help.
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« Reply #7 on: August 30, 2005, 10:15:53 AM »

Glad I could help.
You have no idea how much you helped.

I salute you, Mr. White.....
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« Reply #8 on: August 30, 2005, 10:36:40 AM »

 USA
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« Reply #9 on: August 30, 2005, 11:09:30 AM »

Congrats Chowder.  Nothing like the feeling of getting it done and working.
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Chowder Head
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« Reply #10 on: August 31, 2005, 03:16:41 PM »

Son of a b****!

I went to NAPA today, got some attachments only to find out THEY won't even fit on the damn schrador valave!  It fits the gauge just fine but not the valve.  Anyone know the exact size for the valve or do I just keep guessing until I find one that fits the valve?
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« Reply #11 on: September 01, 2005, 06:44:34 AM »

You do realize that you actually have to remove the Schrader valve, right?  Then, a new fitting goes into the fuel rail and your gauge screws into that fitting.
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« Reply #12 on: September 01, 2005, 10:51:39 AM »

You do realize that you actually have to remove the Schrader valve, right? Then, a new fitting goes into the fuel rail and your gauge screws into that fitting.
Oh yeah, I knew that but I can't find a nut that fits onto it after I remove the black piece.
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« Reply #13 on: September 01, 2005, 10:53:51 AM »

What black piece?  The little cap that screws onto the Schrader valve?

You need to unscrew the whole valve out of the fuel rail and screw the new fitting in its place.
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« Reply #14 on: September 01, 2005, 11:49:22 AM »

What black piece? The little cap that screws onto the Schrader valve?

You need to unscrew the whole valve out of the fuel rail and screw the new fitting in its place.
The ENTIRE thing?  I have to remove the whole thing when I want to check the psi?  And when I'm done, screw the whole thing back in?
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« Reply #15 on: September 01, 2005, 11:53:44 AM »

Forget screwing the whole thing back in.  Just leave the gauge hooked up permanently.  That's exactly what I did on my '96 GT when I installed the sender for my electric fuel pressure gauge.
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« Reply #16 on: September 01, 2005, 11:55:16 AM »

How do you get off?  A regular adjustable wrench?

Thanks Andrew.
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« Reply #17 on: September 01, 2005, 11:57:46 AM »

Forget screwing the whole thing back in. Just leave the gauge hooked up permanently. That's exactly what I did on my '96 GT when I installed the sender for my electric fuel pressure gauge.
Leave it in there?
I got a pm from Pete saying this.

"set the pressure, and take the gauge out. no need to check it again unless you are readjusting

ive seen them snap from vibration more than once


that in turn will cause fuel to spew all over the hot engine compartment and burn your car to the ground"


Maybe it would be best to screw the valve back in, just in case?
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« Reply #18 on: September 01, 2005, 12:00:01 PM »

Yeah, whatever you have available.  An adjustable wrench should work, but if it were me, I'd use the closed end of an open end wrench or a socket just to minimize the risk of rounding off that valve.  Just make sure that you put a rag over that valve and press the button with a screwdriver to release the pressure in the fuel rail before unscrewing the valve.
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« Reply #19 on: September 01, 2005, 12:00:32 PM »

get a regular FP guage and hook it up permanantly....never had a problem with my autometer.
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Chris
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« Reply #20 on: September 01, 2005, 12:02:19 PM »

Yeah, whatever you have available. An adjustable wrench should work, but if it were me, I'd use the closed end of an open end wrench or a socket just to minimize the risk of rounding off that valve. Just make sure that you put a rag over that valve and press the button with a screwdriver to release the pressure in the fuel rail before unscrewing the valve.
There is a button?  Do you mean the tip on the black cap?  I didn't see a button, maybe I didn't look hard enough...
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« Reply #21 on: September 01, 2005, 12:05:30 PM »

Maybe it would be best to screw the valve back in, just in case?

If you feel more comfortable doing that, then by all means.  Just make sure that you wrap the threads with teflon tape.  Like I said, I had an electric fuel pressure gauge on my dash and I had the sender hooked up to where the Schrader valve goes and I had no issues.
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« Reply #22 on: September 01, 2005, 12:06:48 PM »

There is a button?  Do you mean the tip on the black cap?  I didn't see a button, maybe I didn't look hard enough...

I called it a button because that's all I could think of.  It looks just like a tire valve.  You push that little thing in the center.
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« Reply #23 on: September 01, 2005, 01:21:56 PM »

Does anyone live near Chowder that can assist.

I reallly do not want to see the "Mustang on Fire" thread.
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« Reply #24 on: September 01, 2005, 07:09:47 PM »

Does anyone live near Chowder that can assist.

I reallly do not want to see the "Mustang on Fire" thread.
I think I can remove a valve, lol.
I'm thinking about getting a bike in the future so when I do exhaust, HCI, etc, I won't have to rush the project because I have somewhere to go.
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« Reply #25 on: September 22, 2005, 01:18:50 AM »

Alright, I went to try to take it off, but I couldn't get it off.  Which one do I take off, the red arrow or blue arrow?  Or both?


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