fuel pressure gauge

D

DURRETT

New Member

Jun 16, 2007

18

0

0

Aug 9, 2007

#1

• Aug 9, 2007

• #1

I bought a fuel pressure gauge that installs where the shrader valve is on my fuel rail if i unscrew the valve what will happen need help with install

 

fastford91

New Member

Aug 15, 2006

254

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Niagara ,Ontario, Canada

Aug 9, 2007

#2

• Aug 9, 2007

• #2

nothing will happen ...... well maybe a little gas will spill out but thats about it! make sure the engine is not hot when you do this! or you risk a fire! it's an easy install just undo it put new teflon tape around the threaded part and put new one on!!! turn on ignition dont start it ! look for leaks! if none are found your good to go! simple!

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Aug 9, 2007

#3

• Aug 9, 2007

• #3

most little gauges have a 1/4 NPT thread on them and the valve on the rail is 1/8NPT you need an adapter if you didnt get one, my little gauge is a pro products and they also carry the adapter.

 

D

DURRETT

New Member

Jun 16, 2007

18

0

0

Aug 9, 2007

#4

• Aug 9, 2007

• #4

cool thanks for the help

 

G

getusummm

Member

Dec 26, 2004

156

0

16

Aug 10, 2007

#5

• Aug 10, 2007

• #5

Actually the valve that screws into the rail is 1/16npt. The fuel guage adapter can be either 1/8npt or 1/4npt depending on brand.

 

Foxfan88

My Grandpa has great wood.

Sep 13, 2004

2,487

4

0

Miami, Ok

Aug 11, 2007

#6

• Aug 11, 2007

• #6

yeah your right, i forgot about 1/16th pipe

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,271

17,959

224

Massachusetts

Aug 11, 2007

#7

• Aug 11, 2007

• #7

Just let the car sit overnight and then do it first thing the next day. That way the pressure has a chance to bleed down and the engine is cool.

DOn't use teflon tape to seat the threads. Use that thread paste and allow it to set up before pressurizing.

gas eats teflon, so i used it once anda bit of teflon floated up into my FP gauge and blocked the port and gave false readings. I only by chance discovered it when i looked inside and barely got the peice out. I got very lucky it didn't go into my injectors

 

cenok is family

15 Year Member

Jun 25, 2003

1,409

69

79

Norman, Ok

Aug 11, 2007

#8

• Aug 11, 2007

• #8

Mustang5L5 said:

Just let the car sit overnight and then do it first thing the next day. That way the pressure has a chance to bleed down and the engine is cool.

DOn't use teflon tape to seat the threads. Use that thread paste and allow it to set up before pressurizing.

gas eats teflon, so i used it once anda bit of teflon floated up into my FP gauge and blocked the port and gave false readings. I only by chance discovered it when i looked inside and barely got the peice out. I got very lucky it didn't go into my injectors

Click to expand...

hmmm...i should probably get the teflon tape off of my gauge then.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

43,271

17,959

224

Massachusetts

Aug 11, 2007

#9

• Aug 11, 2007

• #9

If you just tefloned the threads and nothing protruded into the fuel, you should be fine really. I was just a sloppy jalopy when i did mine

 

ACSPONY

20+ Year Stangneter

Oct 10, 2004

711

2

19

Ohio

Aug 11, 2007

#10

• Aug 11, 2007

• #10

You should also be able to take a rag and pen cap and bleed the fuel out of the rail so it's not under pressure when you try to install the gauge. It'll re-pressurize next time you turn the car to crank.