Do you really need the special tool to re-install injectors?

I just put some in at the end of August but I just pushed them in by hand and then tapped in with a soft rubber mallet. And not hard by any means, just light tapping.

But I keep having the injectors blow the lower o-ring and we have figured out that the injector wasn't seated properly. So I am going to pull them, install new orings and copper washers and reinstall. Just wondering if the special tool that I saw on alldatadiy was what I needed.

I will order this tomorrow

Thanks for the help

 

I have never used a special tool .I just lube the orings ,tap in with a mallet , tighten hold down bolts .

 

Push them in, put a small block of wood on top of the injector, tap with a rubber mallet until seated. Check all 4 across with a level to make sure they are all seated evenly.

Make sure to use Motorcraft o-rings only.

That is all you ever need to know.

 

Ditto....Did mine late last year.

 

+1 use QUALITY 'O'-Rings

 

I have never used a special tool. I do use a appropriate sized wire brush to make sure the cups are clean before installing the injectors. I also soak the injectors in a tub of motor oil so they go in nice and easy. To tap them into place, I slide the hold down clamp over the upper bolt and then use a hammer and short length of wooden dowel to tap on the lower portion of the hold down clamp...(where the lower bolts goes). Just a few very light taps and they go right into place.

I don't bang on the solenoids at all. They can be a bit fragile so I tap on the clamp instead. When you are all finished, use a straight edge and check that all the solenoids are on the same plane.

 

I saw a video where somebody got on the end of the injector bracket with a 5/8" open-end wrench and just pried down - worked like a charm... for him. I use a dead-blow (gently) until I can get the top bolt over the bracket, then I use a socket extension on the bracket to knock it the rest of the way down.

 

Sorry to hijack the thread, but my Irish parts store orings won't cut it eh?

 

It's your labor, time, and money. Let us all know how that turns out.

 

Only put them in #4 about 6 months ago. Failed a cct on #4 about a month ago. Booooo!

 

I tried those once. Lost the same o-ring on all 8 injectors within 400 miles. Ended up stranded on the side of the road with about 6 quarts of oil remaining in the pan. Fun times.

 

Sorry for the dumb question, but what happened to only end up with 6 quarts in the pan?

 

Oil pressure , much higher than fuel pressure , can pump oil to the fuel tank through the return line . I have seen that first hand .

 

Yes use only motorcraft O-rings. Even the dealer isn't that bad if you need them now. Other wise order them from Riffraff Diesel he's great to do business with. I use the 5/8 wrench method and it worked just fine. It sounds like it was the type of O-rings you used that caused your problem. Good luck this time.

 

Oil in the fuel. It happens. Fuel economy went up for a short while