How to block off High pressure hose ICP

[gbickel]

I want to test to see which head is leaking. How do I block off the High Pressure line with out the special tool?

[RD97]

The lines can be removed with standard flare wrenches. A hydraulic shop should have any required plugs or fittings required to isolate each head.

[gbickel]

Ok, I blocked off the passenger side and no smoke. I have pulled the injectors and found the very top orings look bad but no horrible. We thought we might have seen coolant in the hole but we see nothing with pressure tester on system. It he top oring being bad enough to cause lots of white smoke?





1996 F450 7.3 25,000 on engine, has been sitting for 1 year.

[Nit]

you've only made 1/2 a test, the ICP must be in teh loop for the computer to see enough pressure to start, to do thsi test properly you need a real pressure gauge in teh system and an adapter for the ICP. Otherwise you can only test the left side