Injector refurb job ?

007_e350 · 12-25-2019, 05:33 AM

Hey guys, I’ve opened up everything to do the valvecover gasket job, I don’t believe the injector tips are spraying the way they should, the microscopic nozzle tips have to create a spray pattern optimal for combustion, the way they dame out they’re burnt up and I can’t sand them down or clean the tips coz I might clog the pores... anyone knows someone who refurbishes these

Thanks
She has 75k in the clock

Persian Whisperjet · 12-25-2019, 05:52 AM

I would check in with Matt Whitbread or Andrew Rodriguez or the many other super knowledgeable people on this forum (or the FB forum). There has been a post on refurbishing injectors in the last week -- maybe it was you! As you suggest the tips are super delicate and they can be destroyed by well meaning efforts at cleaning.

apexit4 · 12-25-2019, 11:55 AM

Quote:

Originally Posted by Persian Whisperjet

I would check in with Matt Whitbread or Andrew Rodriguez or the many other super knowledgeable people on this forum (or the FB forum). There has been a post on refurbishing injectors in the last week -- maybe it was you! As you suggest the tips are super delicate and they can be destroyed by well meaning efforts at cleaning.

Quote:

Originally Posted by Persian Whisperjet

I would check in with Matt Whitbread or Andrew Rodriguez or the many other super knowledgeable people on this forum (or the FB forum). There has been a post on refurbishing injectors in the last week -- maybe it was you! As you suggest the tips are super delicate and they can be destroyed by well meaning efforts at cleaning.

Would you happen to have a link to the post on refurbishing the injectors? I scanned the post topics from the last week or so and didn't see the one you mentioned.

I've got a couple spare injectors that I've been thinking of cleaning up professionally. I'll probably contact Rodriguez about that as well since you suggested it (I hadn't even considered they might do it, never seen it advertised on their website).

Yozh · 12-25-2019, 10:27 PM

Post a picture. Most likely they are fine.

robnitro · 12-25-2019, 11:52 PM

I'd just soak the bottom 1/3rd in kerosene in an ultrasonic cleaner which should dissolve the soot. I did that with my vw tdi injectors before getting new nozzles.

Persian Whisperjet · 12-26-2019, 02:34 PM

Quote:

Originally Posted by apexit4

Would you happen to have a link to the post on refurbishing the injectors? I scanned the post topics from the last week or so and didn't see the one you mentioned.

I've got a couple spare injectors that I've been thinking of cleaning up professionally. I'll probably contact Rodriguez about that as well since you suggested it (I hadn't even considered they might do it, never seen it advertised on their website).

I can't find the thread that cautioned against gakking up the injector tips, but I did run across this excellent DIY.

https://www.e90post.com/forums/showthread.php?t=1290545

Persian Whisperjet · 12-30-2019, 06:58 PM

At around 6:15 he says it is not recommended to touch or recondition the injector tip.

ASBSECU E93 · 12-30-2019, 07:18 PM

Quote:

Originally Posted by 007_e350

Hey guys, I’ve opened up everything to do the valvecover gasket job, I don’t believe the injector tips are spraying the way they should, the microscopic nozzle tips have to create a spray pattern optimal for combustion, the way they dame out they’re burnt up and I can’t sand them down or clean the tips coz I might clog the pores... anyone knows someone who refurbishes these

Thanks
She has 75k in the clock

Send them to this place - they'll flow test and clean them.

https://ocaladiesel.com

Yozh · 12-31-2019, 01:29 AM

Every injector that is tested by a qualified outfit will end up with clean tips. I’ve tested many and asked why the tips are clean. Tips are not getting cleaned on purpose. It’s a byproduct of testing fluid running through them. Go figure it’s not diesel they use.

bmwdiesel · 12-31-2019, 01:27 PM

you can open injector but it's torqued at some 100nm as I seen on youtube. you can open, there are few tiny metal parts in the tip. you can soak them up in ultrasonic cleaner that can be bought for some 50 bucks used for jewelry cleaning.... guys are doing it, but I wouldn't do it myself since I am lacking tools and patience and technical prowess, where I can't even remove fricking pressure converter plate burried in a tight s..hole where I cant even reach with my fingers

12-25-2019, 05:33 AM	#1
007_e350 Lieutenant Colonel 217 Rep 1,909 Posts Drives: 335i 2008 MHD'd / x5d E70 Join Date: May 2013 Location: left lane iTrader: (3)	Injector refurb job ? Hey guys, I’ve opened up everything to do the valvecover gasket job, I don’t believe the injector tips are spraying the way they should, the microscopic nozzle tips have to create a spray pattern optimal for combustion, the way they dame out they’re burnt up and I can’t sand them down or clean the tips coz I might clog the pores... anyone knows someone who refurbishes these Thanks She has 75k in the clock __________________ Mods: 7" VRSF FMIC, Forge DVs, RB PCV, BMS Oil Cooler, VRSF DPs, MHD, JB4g5, OFT DIYs: Walnut blasting : Trans Oil at 45k, w Filter at 65k : Diff Oil Flush @ 45k : WP&TS @ 69k : Alternator @ 79k --- E70d Alphabet Soup del 44.4k : JR Stg2.25 tune : Buzzken Catted Exhaust : Trans fluid drain/ fill (3 Qrts), both Diffs fluids flushed Wheels: Style 95s on PSSs (Sold): AG 359s on S04s : 162s on Blizzaks : Rohana RF1 Matt black
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12-25-2019, 05:52 AM	#2
Persian Whisperjet Kind of a Big Deal 167 Rep 857 Posts Drives: 2011 335d Join Date: Dec 2012 Location: Washington, D.C. iTrader: (0)	I would check in with Matt Whitbread or Andrew Rodriguez or the many other super knowledgeable people on this forum (or the FB forum). There has been a post on refurbishing injectors in the last week -- maybe it was you! As you suggest the tips are super delicate and they can be destroyed by well meaning efforts at cleaning. __________________
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12-25-2019, 10:27 PM	#4
Yozh Colonel 870 Rep 2,615 Posts Drives: 2011 335d M-Sport Join Date: Mar 2014 Location: Wet Coast iTrader: (4)	Post a picture. Most likely they are fine.
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12-25-2019, 11:52 PM	#5
robnitro Captain 160 Rep 803 Posts Drives: x5 35d e70 2011 Join Date: Sep 2016 Location: NYC area iTrader: (0)	I'd just soak the bottom 1/3rd in kerosene in an ultrasonic cleaner which should dissolve the soot. I did that with my vw tdi injectors before getting new nozzles.
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12-30-2019, 06:58 PM	#7
Persian Whisperjet Kind of a Big Deal 167 Rep 857 Posts Drives: 2011 335d Join Date: Dec 2012 Location: Washington, D.C. iTrader: (0)	At around 6:15 he says it is not recommended to touch or recondition the injector tip. __________________
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12-31-2019, 01:29 AM	#9
Yozh Colonel 870 Rep 2,615 Posts Drives: 2011 335d M-Sport Join Date: Mar 2014 Location: Wet Coast iTrader: (4)	Every injector that is tested by a qualified outfit will end up with clean tips. I’ve tested many and asked why the tips are clean. Tips are not getting cleaned on purpose. It’s a byproduct of testing fluid running through them. Go figure it’s not diesel they use.
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12-31-2019, 01:27 PM	#10
bmwdiesel Private 14 Rep 84 Posts Drives: 335d 2007 Join Date: May 2018 Location: old continent iTrader: (0)	you can open injector but it's torqued at some 100nm as I seen on youtube. you can open, there are few tiny metal parts in the tip. you can soak them up in ultrasonic cleaner that can be bought for some 50 bucks used for jewelry cleaning.... guys are doing it, but I wouldn't do it myself since I am lacking tools and patience and technical prowess, where I can't even remove fricking pressure converter plate burried in a tight s..hole where I cant even reach with my fingers
	Appreciate 0 Quote