Fuel Pressure Gauge Install Fittings
What fitting(s) are needed to install a FP gauge onto the fuel rail schrader valve? Is it the 1/8 to -4AN fitting? Where to buy? Depending on the sender size,will it just sit on top of the schrader valve or would I have to relocate it somewhere? What have you guys done?Thanks
|
Re: Fuel Pressure Gauge Install Fittings
I wanted to retain (and have used occasionally) my schrader valve under the hood. I used a T fitting and a couple of adapters to do this. The up side is that I can connect my Hypertech fuel pressure gauge under the hood to verify the pressure against my in-dash Autometer gauge. The down side is that it must be removed to remove/install the fuel rails. Also, I retained my fuel rail schrader valve, unlike most which require that the valve itself be removed from the fuel rail.
Caspers Electronics, a schrader tee part #102071 Click here Earls 1/8 NPT coupling part #991001 Click here Click Here Earls -4 to 1/8 NPT adaptor part #916104 Click here Basically, the T fitting, a gender bender and an adapter. |
Re: Fuel Pressure Gauge Install Fittings
|
Re: Fuel Pressure Gauge Install Fittings
If you are mounting the entire gauge directly to the Schrader valve, be careful. The Schrader fitting is only swaged onto the metal line, and will break off very easilly. If the gauge is near the cowl, the engine might torque enough to allow the gauge to hit the cowl.
I used an NOS 17535 -4AN 90-deg swivel fitting. That allows you to tighten the fitting onto the Schrader valve and aim it in the correct direction, away from the cowl and firewall, with no over-tightening. Then a braided SS hose with -4AN female on one end and 1/8" male NPT on the other (I've seen these ready-made on ebay). Use a 1/8" NPT brass coupling to connect the gauge to the hose, or insert a brass "tee" in the middle to provide an "extra" connection for some other purpose, as noted above. Or.... the ultimate solution - pressure sender mounted directly to a bung welded to the passenger side fuel rail: http://www.injuneer.com/images/photo...ls%20-%202.jpg http://www.injuneer.com/images/photo...ilFuelConn.jpg |
Re: Fuel Pressure Gauge Install Fittings
Thanks
|
Re: Fuel Pressure Gauge Install Fittings
Originally Posted by Injuneer
(Post 6787569)
If you are mounting the entire gauge directly to the Schrader valve, be careful. The Schrader fitting is only swaged onto the metal line, and will break off very easilly. If the gauge is near the cowl, the engine might torque enough to allow the gauge to hit the cowl.
I used an NOS 17535 -4AN 90-deg swivel fitting. That allows you to tighten the fitting onto the Schrader valve and aim it in the correct direction, away from the cowl and firewall, with no over-tightening. Then a braided SS hose with -4AN female on one end and 1/8" male NPT on the other (I've seen these ready-made on ebay). Use a 1/8" NPT brass coupling to connect the gauge to the hose, or insert a brass "tee" in the middle to provide an "extra" connection for some other purpose, as noted above. Or.... the ultimate solution - pressure sender mounted directly to a bung welded to the passenger side fuel rail: http://www.injuneer.com/images/photo...ls%20-%202.jpg http://www.injuneer.com/images/photo...ilFuelConn.jpg Hose Coupler NOS I should have said the electric sender for the gauge,not the actual gauge. |
Re: Fuel Pressure Gauge Install Fittings
Looks good to me.
|
Re: Fuel Pressure Gauge Install Fittings
Originally Posted by Injuneer
(Post 6788139)
Looks good to me.
|
Re: Fuel Pressure Gauge Install Fittings
Originally Posted by Injuneer
(Post 6788139)
Looks good to me.
|
Re: Fuel Pressure Gauge Install Fittings
There is enough straight section of metal fuel supply tubing (3/8") outboard of the lines' manifold support bracket to cut in a 3/8" compression tee. The tee and whatever fitting to go from 3/8" male tube to the necessary pipe thread adapter for the FP sender can be found at a Lowes, Home Depot or any dedcent plumbing supply house. At least on a 1995 and I assume it's still the same for a 97 LT1.
|
Re: Fuel Pressure Gauge Install Fittings
Originally Posted by Red97LT1
(Post 6792466)
Did you use any sort of sealer on the threads?
|
All times are GMT -5. The time now is 01:25 AM. |
© 2024 MH Sub I, LLC dba Internet Brands