Fuel Pressure Tool - Need Your Advice

[Tidybuoy]

I need to measure & adjust my fuel pressure.

I went to the auto parts store to look at the tools & the only fuel pressure gauge was a combo unit that measured both fuel pressure & vaccum.

The thing that I didn't really like was that it connected simply by a cone that inserted into a line.

I thought that to measure the fuel pressure, you attached to the fuel rail via the capped screw.

My question: does anyone know the size of the port for measuring the fuel pressure so I can make something that will work.

Also, anyone got any advice on this tool (i.e., price range, pep-boys vs. sears, Pelican, etc). The tool that I looked at was about $30

Thanks............................................ Vern

[MikePearson]

What you want is a Fuel Injection Pressure Tester. They usually come with an assortment of hookup adapters for the various FI systems. I bought mine many years ago...I think from JC Whitney. They weren't very expensive, as I recall.

Do NOT use the little cone adapter with the vacuum/pressure gauge; that gauge is made for air, not fuel, and especially not fuel under pressure!

[SteveStromberg]

For a Quick lowbuck tool use a water pressure gauge fronm the hard ware store. The gas will eat the insids and they dont last very long maybe two or three month but they only cost a few dollars, use barbed hose fitting and the cold start line.

[Ron Meier]

I used a cheapie mechanical oil pressure guage and hose. Clamped hose to guage, removed screw from rail and clamped hose over spigot - Ran like that with guage hooked up for a month ( to lazy to take it off).

Or

You can go to Sears and buy their's for $80.00

[jamcleod]

at home depot (or any hardware store) they sell a pressure gauge in the area of the sump pumps. probably about $5, but don't quote me. 2 hose clamps and a piece of fuel line hose and you're in business.

[Tidybuoy]

Great Answers!

I knew something was haywire with that cone type. The good news, I already own a pressure tester for sprinklers & I happen to have two since I couldn't find the orig at the time.

Thanks................................Vern

[Dave at Pelican Parts]

7mm ID for the hose that you will hook up to the fuel rail (or cold start valve or whatever). I forget the inch equivalent, but it's a little larger than 1/4".

--DD

[karlp]

5/16 ID fuel injection hose will fit nicely. 5/16 barb by pipe thread to adapt to the gauge.
I've got a gauge permanently mounted in the engine bay. Just for the fun of it.

Karl P.

[Jared at Pelican Parts]

On my 2.0 I used a Campbell Hausfeld air compressor gauge with a fitting reducer to fit onto the fuel rail. You can get them at Home Depot, just look in the tools section. They are cheap and are good to about 90 PSI. I ran it on there for a long time with no problems.

[Tidybuoy]

Jared,

I picked up the compressor gauge today at Home Depot. I can't wait to check my fuel pressure (tomorrow). It looks like it will work perfectly.