Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Injector ?

Thread Tools
 
Search this Thread
 
Old 08-26-2005, 10:49 AM
  #1  
tv
Drifting
Thread Starter
 
tv's Avatar
 
Join Date: Jun 2003
Location: southern new england
Posts: 3,141
Received 252 Likes on 126 Posts
Default Injector ?

While they are out, is there anything simple that can be done for them at home like soaking in something? acetone or anything.
Old 08-26-2005, 11:49 AM
  #2  
borland
Drifting
 
borland's Avatar
 
Join Date: Aug 2003
Location: Camarillo, CA, USA
Posts: 2,259
Likes: 0
Received 2 Likes on 2 Posts
Default

NO.

While they are out, might as well have them professionally flow/leak tested. Cost is minimal.
Old 08-26-2005, 01:02 PM
  #3  
tv
Drifting
Thread Starter
 
tv's Avatar
 
Join Date: Jun 2003
Location: southern new england
Posts: 3,141
Received 252 Likes on 126 Posts
Default

Thanks but someday i'll buy new ones just wondered if there was something simple at home. I've read all previous threads, i think there was a post quite a long time ago about someone who rigged up their own deal using a plastic jug.
Old 08-26-2005, 02:26 PM
  #4  
NickT
Three Wheelin'
 
NickT's Avatar
 
Join Date: Dec 2003
Location: Central New Jersey, where 287 and 78 meet.
Posts: 1,656
Likes: 0
Received 2 Likes on 2 Posts
Default

One of the nice things about having them professionally done, is that they will match all the injectors so they all flow at the same rate, should be within 1% of each other. Plus you get a nice chart showing the flow rates before and after..

my $0.02.
Old 08-26-2005, 02:37 PM
  #5  
worf928
Addict
Rennlist Member
 
worf928's Avatar
 
Join Date: Oct 2003
Location: Gone. On the Open Road
Posts: 16,496
Received 1,638 Likes on 1,069 Posts
Default

What kind of injectors? (Or, in other words, put the model year of your car in your sig...)

Injectors for the LH cars can be cleaned and balanced.

Injectors for the CIS cars are cheap enough that you just buy new ones.
Old 08-26-2005, 03:09 PM
  #6  
jtrygstad
Rennlist Member
 
jtrygstad's Avatar
 
Join Date: May 2004
Location: Salt Lake City
Posts: 227
Received 17 Likes on 9 Posts
Default

If you have CIS injectors (purely hydraulic), then you can soak them without fear.

We have an 80S Euro with CIS injectors. I filled a glass peanut butter jar with Berrymans B-12 Chemtool ad drop the injectors in. Let them soak for a few hours - cleaned them up nicely!
Old 08-26-2005, 03:31 PM
  #7  
tv
Drifting
Thread Starter
 
tv's Avatar
 
Join Date: Jun 2003
Location: southern new england
Posts: 3,141
Received 252 Likes on 126 Posts
Default

85 euro LH 2.2 the mystery injectors
Old 08-26-2005, 04:10 PM
  #8  
jtrygstad
Rennlist Member
 
jtrygstad's Avatar
 
Join Date: May 2004
Location: Salt Lake City
Posts: 227
Received 17 Likes on 9 Posts
Default

Thems electronic - you have to send off for cleaning and balancing. I supposed, though, you could carefully soak the tips (lower 1 inch?) to get rid of the varnish/external crud.
Old 08-26-2005, 04:15 PM
  #9  
jyoon
Burning Brakes
 
jyoon's Avatar
 
Join Date: Apr 2004
Location: Indiana
Posts: 1,022
Likes: 0
Received 0 Likes on 0 Posts
Default

i just got my euro injectors cleaned and returned. i believe the flow rate is 240cc at 3 bar (47.5psi?) cost $15 each. i got the flow data at home.
Old 08-26-2005, 04:39 PM
  #10  
Flint
Three Wheelin'
 
Flint's Avatar
 
Join Date: Jun 2001
Location: Omaha, NE
Posts: 1,319
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by jyoon
i just got my euro injectors cleaned and returned. i believe the flow rate is 240cc at 3 bar (47.5psi?) cost $15 each. i got the flow data at home.
Hey, where'd you get that done? I've got mine out and was looking at sending them off. Also, did you have to remove anything (seals and such?)
Old 08-26-2005, 05:15 PM
  #11  
jyoon
Burning Brakes
 
jyoon's Avatar
 
Join Date: Apr 2004
Location: Indiana
Posts: 1,022
Likes: 0
Received 0 Likes on 0 Posts
Default

i got mine done here: http://www.injectorservices.com/. it was extremely fast service. you get a report showing the condition your injectors were in before and after. the injectors come back cleaned and basically looking like new less the paint.

if this is the first time your injectors have ever been removed, you have to remove that brass collar and fuel line. the brass collar is a pita if you try cutting it off. i cut the rubber hose, then split it and removed with vise grips, then the collar just falls off. you will need new o-rings. one on the injector tip and a larger one on the injector body. they include the one for the tip, but i still replaced it with porsche ones to make sure they were the exact correct size. then you need to buy new fuel hose and clamps to reinstall. i bought a kit from 928 international. seems like a pretty good kit.
Old 08-26-2005, 05:16 PM
  #12  
Bill Ball
Under the Lift
Lifetime Rennlist
Member
 
Bill Ball's Avatar
 
Join Date: Mar 2002
Location: Buckeye, AZ
Posts: 18,647
Received 49 Likes on 36 Posts
Default

Injector cleaning:

Marrens: http://www.injector.com/injectorservice.php
Well known. Seems their prices have gone up.

Cruzin: http://www.cruzinperformance.com/fuelinj.html
Inexpensive and good reports.

RC Enginering: http://www.rceng.com/service.htm#INJECTOR

Affordable: http://www.affordable-fuel-injection...r-cleaning.htm
Old 08-27-2005, 01:25 AM
  #13  
jyoon
Burning Brakes
 
jyoon's Avatar
 
Join Date: Apr 2004
Location: Indiana
Posts: 1,022
Likes: 0
Received 0 Likes on 0 Posts
Default

the euro injectors bosch 280.150.252 were 240 cc/min @ 43.5 psi. i think this translates to 22.86 lbs/hr. pretty close to the 24lb injectors from the 86 iirc. seems weird they wouldn't just use the same injectors.
Old 08-27-2005, 10:11 AM
  #14  
Daniel Dudley
Rennlist Member
 
Daniel Dudley's Avatar
 
Join Date: Dec 2004
Posts: 5,670
Likes: 0
Received 1 Like on 1 Post
Default

What you do not want is for the injectors to varnish up and seize. A spray of carb cleaner or WD, followed by a little mystery oil in the bores couldn't hurt. I too would say now is the time to send them out, not later. But if it ain't broke...
Old 08-31-2005, 01:28 PM
  #15  
WitchHunter
AutoX
 
WitchHunter's Avatar
 
Join Date: Apr 2005
Posts: 11
Likes: 0
Received 0 Likes on 0 Posts
Default

Don't soak the in Acetone, it can damage the internal seals. The problem with just soaking them is that you may just loosen up the deposits that build up under the filters and they may clog the injector. Injector shops back-flush them while cleaning.


Gordon
WitchHunter Performance
InjectorServices
Fuel injector cleaning & flow testing service


Quick Reply: Injector ?



All times are GMT -3. The time now is 08:19 AM.