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Old 01-11-2017, 05:08 PM   #1
MSGGrunt's Avatar
Join Date: Aug 2016
Location: Western, MA
Posts: 73
M50 Green Top 4 Pintle Ijector Question

I purchased 6 rebuilt M50 green top injectors for the 4 pintle upgrade and when I received them 4 were a light green and 2 were a darker green. I assume this doesn't matter but, three of the six have a smaller hole in the yellow "cap" than the other three. Does this matter? I have confirmed that all 6 have the 4-hole pintles.

Why would all of the holes not be the same size?

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1989 E30 325iX
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Old 01-12-2017, 09:21 AM   #2
Grease Monkey
Join Date: Sep 2008
Location: Grand Rapids MI, Houghton MI
Posts: 360
Assuming all the injectors have the same part number on them, you can get replacement caps for very cheap and match them up. Colors not matching is just an indication that the injectors were made in a different batch and most likely not from the same original car.
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Old 01-12-2017, 01:24 PM   #3
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Join Date: Nov 2005
Location: Sydney, Oz
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i would always use same "looking" injectors and flow matched sets, they are kinda important pieces to the puzzle
89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works...

new build thread http://www.r3vlimited.com/board/showthread.php?t=317505

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