2001 RFI Oil Injector nozzle test

[oppeau]

Just finishing up a upper end rebuild. Replacing all the oil injector tubing. How can I verify that the injectors are not clogged? Are these check valves? What can I expect blowing on the 2 small tubes going to the nozzles? Am I worried about nothing?

Thank you

 

[mikidymac]

On that engine I think the check valves are at the pump.
Some people pull the pump and use a drill to prime it.
I dump a little oil in the plug holes and just hold the pump wide open by hand and let it idle. You can see the oil fill the lines pretty fast.

 

[etemplet]

I use a hand pressure/vacuum pump. If you can blow hard enough if it is a check it will pop. Probably takes about 3 pounds of pressure.