Neanderpundit

Compression test OK. Wthin spec on all eight.

Plugs 1,2, 5,6,7,8 smelled like gas, and were, in fact, wet. Plugs 3 and 4 were bone dry. When doing the comp test I smelled gas on the above listed cylinders and not on 3 and 4.

The cylinders (all cold, so not the best circumstances) were all beteween 100 and 140, and my cheapo tester is leaky, so I suspect the actual numbers are much closer.

So I think I’m looking at injectors. And I have a couple ideas about cleaning them. And I’ll replace them all, if need be.

Haven’t had a chance to do the compression test yet- hopefully tonight.

Looks a lot like this is a bad injector. I will have to build myself a test fixture to check the injectors so I know what they need. Which means something to give me 30 psi of fuel. Think I’ll use kerosene so I don’t blow myself up. At least, not as readily.

This may be because of a small stupidity I inflicted on myself some months ago- I ran out of gas on my way home- You know the drill, “I think I have enough gas to make it to the next Shell station” and “not”. This is the first time I have done that with the explorer, so I suspect the accumulated sludge of 17,000 gallons of petrol is now in my fuel rail and injectors.