A certain local H-T member has been kind enough to drive up after work for several days to do some valvetrain work on my B18C5/B16A mongrel, and while he was busy doing the heavy lifting, I decided to pull out my fuel rail and change out my stock 240cc injectors and replace them with some OBD2 Prelude (290cc) units.

So out they come, and all 4 injectors look like THIS




The injectors have about 65k miles use, about 10k miles were with an untuned PowerFC running the B16A basemap (it ran quite rich). Is this a sign that I need an oil catch can in the worst way?

Comments/insights would be appreciated


PS - thanks to LEN for taking the time to drive 1hr. [each way] after work to do my valvetrain upgrade

 

good 'ol len. such a kind fellow.

 

In the tips look ok, clean in there is good. Outside is expected to get dirty.

 

you got a great friend

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ceasar of mgineering &raquo;</TD></TR><TR><TD CLASS="quote">you got a great friend </TD></TR></TABLE>

Len really is good people. He treats me like family.

I've been trying to teach him how to cook so he can impress the ladies - it's still a work in progress

 

you could send them to rc and have them clean them if you wish.

 

it's just carbon deposits. no worries, it's absolutely normal. and len is just a little sellout

BMW rox0rs his box0rs!!!!!

 

I just pulled mine, and they looked exactly the same.

What solvent do you use to soak them in?

 

just spray em with some Wearever (my favorite brand) brake parts cleaner from advance auto, lube em back up with some grease, and re-install. inspect the seals/o-rings and be careful when putting them back in
-Shawn

 

when you are done with len, send him up my way please. ive got quite a few things that need to be done to the car.

haha for LEN

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ShadyEH2 &raquo;</TD></TR><TR><TD CLASS="quote">inspect the seals/o-rings and be careful when putting them back in
-Shawn</TD></TR></TABLE>

It is NOT a fun experience to be driving to work wondering "What is that stong gas smell..."

Do be careful not to pinch the o-rings putting them back in. I used a dab of motor oil, that worked fine.

-Chris

 

Clean with WD-40 and you are good to go

 

Gun Tec would take that right off, I bet

 

looks normal...

Use some B-12 and wipe them down and put them back in.
Place a dab of ATF on the end to keep rubber ring safe.

And run the car harder from now on.


If you want to see scary... I have some 200,000+ mile CIS (mechanical injectors) to show you.

 

3mdmiar!

 

Yes, becareful about the petroleum based cleaners. I cleaned my injectors with brake parts cleaner and did not lube the o-rings. Within about 5 miles after re-installation I was leaking gas onto the intake manifold...the o-rings were toast.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Willard &raquo;</TD></TR><TR><TD CLASS="quote">looks normal...

Use some B-12 and wipe them down and put them back in.
Place a dab of ATF on the end to keep rubber ring safe.

And run the car harder from now on.


If you want to see scary... I have some 200,000+ mile CIS (mechanical injectors) to show you.</TD></TR></TABLE>

 

.....it's normal.

The big problem is that you let that spiky-haired, godless bimmer-owner touch your kaa.....!

 

ehh they are fine, just clean em up a bit.

 

Hey that kidd in the red sweatshirt made my chinese food last night...oh wait noooo, thats Len

 

Wow.... where do you get gas at? Abu's Stop and shop?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek_freek &raquo;</TD></TR><TR><TD CLASS="quote">Wow.... where do you get gas at? Abu's Stop and shop?</TD></TR></TABLE>

LOL. I only use BP/Amoco or Chevron premium.

Thanks to all for the advise; BTW I replaced these dirty ones with OBD2 Prelude injectors

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ek_freek &raquo;</TD></TR><TR><TD CLASS="quote">Wow.... where do you get gas at? Abu's Stop and shop?</TD></TR></TABLE>

its easy to spot the guys who cant even change their own oil....yet make comments like they are Smokey Yunick.



nick, who is old

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Johnny Tran &raquo;</TD></TR><TR><TD CLASS="quote">

its easy to spot the guys who cant even change their own oil....yet make comments like they are Smokey Yunick.</TD></TR></TABLE>


[butthead voice] huh huh huh, he said "Smokey" huh huh [/butthead voice]

 

Just 290 Shane? PE 380s would of been mighty nice for your setup. Of course, I am sure you got the Prelude injectors fairly cheap compared to PEs.

I may come back to the ATL this summer, late July or August, so you have to take me for a ride in the SiR. And get your *** down to Oki sometime.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC5RK20A &raquo;</TD></TR><TR><TD CLASS="quote">Just 290 Shane? PE 380s would of been mighty nice for your setup. Of course, I am sure you got the Prelude injectors fairly cheap compared to PEs.</TD></TR></TABLE>

I'm not a baller like you

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DC5RK20A &raquo;</TD></TR><TR><TD CLASS="quote">I may come back to the ATL this summer, late July or August, so you have to take me for a ride in the SiR.</TD></TR></TABLE>

I'll be back in ATL on 8/1. Mi casa es su casa