VST Shrader Test Valve Adapter

[Proline25]

2004 250 EFI. I have lost the adapter for the schrader valve on the VST. I have a fuel injector test kit but the adapter for the small schrader is missing. Does anyone know the size or where I can order the small adapter to fit the standard size fuel pressure test hose fitting? Is the fitting 1/8" npt? if so, I may remove the test valve and install a standard size schrader valve with pipe adapter just to run a pressure test.

[JOE54]

part number for the INJECTOR TEST KIT please ???? i know of only one size schrader for MERCURY optimax and EFI engines

[lpugh]

GOOGLE (ford fuel injector pressure tester adaptor)
There many different ones out there, not the same for every manufacture)
Choose the one looks like yours.

[Proline25]

It's a universal fuel pressure test kit that I bought about 15 years ago. It has everything that I need for the LS motors and most other injector rail lines for Mercruisers, common cars and trucks but it may be the "Ford" adapter line that is missing. Fords have a small schrader valve on some vehicles. I was wondering if the Mercury VST schrader is the same as the common Ford gas motor test port before I order it. Ford has numerous adapters listed because of their diesels.

[FeFanatic]

The adapter for my Snap On kit came apart so I ordered a couple of adapter hoses from <Ehmmm>. Bear in mind that only one of the hoses was good so you get what you pay for. I couldn't wait for the tool truck to come around again.

[lpugh]

It's a universal fuel pressure test kit that I bought about 15 years ago. It has everything that I need for the LS motors and most other injector rail lines for Mercruisers, common cars and trucks but it may be the "Ford" adapter line that is missing. Fords have a small schrader valve on some vehicles. I was wondering if the Mercury VST schrader is the same as the common Ford gas motor test port before I order it. Ford has numerous adapters listed because of their diesels.

Exactly the same, same as tire valve stems as well

[JOE54]

Exactly the same, same as tire valve stems as well

^^^^^^+1 right there

[EuropeanAM]

TR413: .305 x 32tpi