What injector index do I have

NoGuru

Lieutenant
Jan 9, 2018
955
402
0
Just North of Detroit
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BMW 335is
Is there a way to tell what injectors I have without uninstalling them? Just curious since I am getting a bit of misfire and last time I changed plugs Cylinder 3 seemed to be a little wet.
 

1and1

Specialist
Dec 28, 2016
60
34
0
Tally, FL
Attached images of a -11 and -12 (installed) to give you an example
 

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ninjacoupe

Specialist
Apr 25, 2017
91
72
0
What is the tool for if you can pull them by hand?
The tool is for when you can’t pull them by hand. I guess if they were in there awhile there could be carbon buildup or even partially seized up. Mine came out easy but they weren’t in very long.

There is also a tool needed to compress the new seals unless you buy injectors with the seals already installed and compressed with the cap.
 
  • Informative
Reactions: doublespaces

veer90

Captain
Nov 16, 2016
1,000
763
25
West Nyack, NY
Ride
e90 335i 6MT
I bought a used injector and this is probably how the guy removed it. All the threads were crushed so bad I couldn't even retap the threads.

You're supposed to install the fuel line nut over the threads and pull them that way... whoever removed that injector is an idiot lmao
 
  • Agree
Reactions: Torgus

Torgus

Major
Nov 6, 2016
1,841
1,297
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Boston
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ACF 6466 E92 + METH
Whoever sold those was an idiot and I can't imagine they didn' notice the damage done to the threads. Get your money back or file a dispute. If you had to use pliers, which you never should, at least use some rubber etc. between so you don't damage them. Classic shade tree mechanic.