injectors
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
It's not the cup you worry about, there's a hole in the bottom of the cup to drain it just fine. The worry is where that hole leads to. When you pulled the injector, all the fuel and oil in the head went down that hole... and there was quite a bit. You need to drain the cylinder, or you will hydrolock when you put everything back together. I use a Mity Vac with a skinny tube to insert into the hole, then pull everything out that I can.
The next step is to install all the injectors (making sure all copper washers are in place, there's no cover on the tip (if new), and there is an abundance of oil coating the whole injector for a slippery insertion.
After the sticks are in, leave the glow plugs out (for now). I use a screwdriver to short the two big posts on the starter relay - located on the passenger fender. This will turn the engine and blow the last bit of oil/fuel out the glow plug hole.
Caveat: If more than a trace of fluid is in the cylinder, it's gunna come out fast - really fast. If you do this in the garage and there's a bunch of fluid in the cylinder, expect to grease the hood, the fender, the walls, the ceiling, yourself, and the family pet. You can lay the valve covers over the heads as a precaution.
The next step is to install all the injectors (making sure all copper washers are in place, there's no cover on the tip (if new), and there is an abundance of oil coating the whole injector for a slippery insertion.
After the sticks are in, leave the glow plugs out (for now). I use a screwdriver to short the two big posts on the starter relay - located on the passenger fender. This will turn the engine and blow the last bit of oil/fuel out the glow plug hole.
Caveat: If more than a trace of fluid is in the cylinder, it's gunna come out fast - really fast. If you do this in the garage and there's a bunch of fluid in the cylinder, expect to grease the hood, the fender, the walls, the ceiling, yourself, and the family pet. You can lay the valve covers over the heads as a precaution.
Thread
Thread Starter
Forum
Replies
Last Post
al0311
1999 - 2003 7.3L Power Stroke Diesel
5
Jan 16, 2016 12:43 PM
kyle j
1994.5 - 1997 7.3L Power Stroke Diesel
19
Nov 5, 2013 07:19 PM
MustangMatt96GT
1994.5 - 1997 7.3L Power Stroke Diesel
34
Nov 14, 2009 10:43 PM
