TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

cleaning injectors can it be done?

Thread Tools
 
Search this Thread
 
Old Aug 7, 2009 | 06:34 PM
  #1  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
cleaning injectors can it be done?

I found my injectors stopped up with varnish. The car had been setting for 4 yrs.I had 43 lbs to the rail, put light on injector harness and it blinked as the starter turned over, ok I pulled the injectors out put 12 volts to each one as I sprayed car cleaner thru them then sprayed air thru them as they were held open with the 12 volts. Will this work for cleaning them?
Reply
Old Aug 7, 2009 | 11:36 PM
  #2  
Chevy86 IROC-Z's Avatar
Supreme Member
15 Year Member
Liked
Loved
Community Favorite
iTrader: (17)
 
Joined: May 2009
Posts: 4,915
Likes: 40
From: Far West
Car: 1986 Camaro Z28 IROC-Z
Engine: 350 Tuned Port Injection, for now.
Transmission: 700R4
Axle/Gears: Posi - 3.23
Re: cleaning injectors can it be done?

I did the same buddy. I pulled them out, connected a little nine volt battery, and sprayed just a little. I really dont know if its good or not because yes gasoline is harsh on some rubbers and plastics, but as we all know, carb cleaner is a very powerful cleaner and it can destroy rubber. My point is, I dont know if it (carb clearner) is to "acidic" for the little rubber pieces at the tips of the injectors. It did clean out the injectors, but as soon as I get my engine running, Im going to dump a fuel injector cleaner, fill up with supreme unleaded and dump octane booster. Then hit the drag strip, just to clean the sh*t out of the fuel system. I highly suggest your have the injectors serviced at a shop that performs ultrasonic cleaning techniques. Check out this video to see what Im talking about............. http://www.youtube.com/watch?v=ZJmdvoZ83hY
Reply
Old Aug 8, 2009 | 11:39 AM
  #3  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: cleaning injectors can it be done?

I have not found a shop to clean them around here maybe I can get them clean enough to get this car moved. Thanks
Reply
Old Aug 8, 2009 | 02:16 PM
  #4  
IROCThe5.7L's Avatar
Moderator
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2001
Posts: 5,225
Likes: 70
From: Buffalo, NY
Car: 1988 IROC-Z
Engine: 427 SBC
Transmission: ProBuilt 700R4
Axle/Gears: Moser 12 Bolt / 3.73 TrueTrac
Re: cleaning injectors can it be done?

www.cruzinperformance.com
Reply
Old Aug 8, 2009 | 02:54 PM
  #5  
FSTFBDY's Avatar
Supreme Member
iTrader: (33)
 
Joined: Jul 2000
Posts: 5,945
Likes: 1
From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: cleaning injectors can it be done?

Give some of these a try. I did make my own years ago with an extra set of fuel rails ,extermal fuel pump, etc.

http://fordfuelinjection.com/?p=82

Name:  P2110031.jpg
Views: 1632
Size:  93.0 KB

http://www.cosworthvega.com/Articles...%20Cleaner.htm

http://specthismiata.com/2008/06/15/...aning-at-home/
Reply
Old Aug 8, 2009 | 03:44 PM
  #6  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: cleaning injectors can it be done?

Thanks TPI I will try your way of cleaning them money is on a tight budget just to move a car. If I decide to keep the tpi I will invest in some injectors later when economy gets better, and that could be a while Thanks again
Reply
Old Aug 8, 2009 | 04:50 PM
  #7  
FSTFBDY's Avatar
Supreme Member
iTrader: (33)
 
Joined: Jul 2000
Posts: 5,945
Likes: 1
From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: cleaning injectors can it be done?

I have some Stock LT1 24lb injectors Id sale for $75shipped. Work fine as they are in the car now. But I need to get off my a!@ and put my 50lb ers in.
Reply
Old Aug 8, 2009 | 08:50 PM
  #8  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: cleaning injectors can it be done?

Do you know if they would work in a stock 305?
Reply
Old Aug 8, 2009 | 09:40 PM
  #9  
thunder85's Avatar
Member
iTrader: (1)
 
Joined: Sep 2003
Posts: 455
Likes: 0
Car: 1988 firebird trans am GTA
Engine: 5.7L w/hsr
Transmission: 700r4
Axle/Gears: posi 3.23
Re: cleaning injectors can it be done?

you will be running rich... 305 comes stock with 19s. might be a bit much
Reply
Old Aug 8, 2009 | 09:54 PM
  #10  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: cleaning injectors can it be done?

Thanks Thunder didn,t know that. I am new to this tpi stuff, makes a carb sound better every weekend I work on it. But I would like to get it running to see if I want to keep it original.
Reply
Old Aug 8, 2009 | 10:16 PM
  #11  
FSTFBDY's Avatar
Supreme Member
iTrader: (33)
 
Joined: Jul 2000
Posts: 5,945
Likes: 1
From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: cleaning injectors can it be done?

would be a tad rich. Is the car all stock? nothing a tune wouldnt cure.
Reply
Old Aug 9, 2009 | 09:23 AM
  #12  
southbay08's Avatar
Sponsor
15 Year Member
 
Joined: Nov 2008
Posts: 1,528
Likes: 49
From: Rockville Centre, NY
Re: cleaning injectors can it be done?

Originally Posted by Dustytrix
I found my injectors stopped up with varnish. The car had been setting for 4 yrs.I had 43 lbs to the rail, put light on injector harness and it blinked as the starter turned over, ok I pulled the injectors out put 12 volts to each one as I sprayed car cleaner thru them then sprayed air thru them as they were held open with the 12 volts. Will this work for cleaning them?
fuel injector cleaners only work to a certain degree, it will not be able clean any carbon buildup that may be stuck on the inside of the injector. If at any point you decide that you would like them professionally cleaned...we posted a 10% off sale on all of our fuel injectors and clean/flowtest services.

if you are interested go to our website and type in code TG11 at checkout.

www.southbayfuelinjectors.com
Reply
Old Aug 9, 2009 | 03:31 PM
  #13  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: cleaning injectors can it be done?

Yes TPI all stock and original I really just want to get it cranked up had it since May beginning to wonder if all this work is worth fooling with.
Reply
Old Aug 15, 2009 | 09:58 PM
  #14  
Dustytrix's Avatar
Thread Starter
Member
15 Year Member
iTrader: (3)
 
Joined: May 2009
Posts: 410
Likes: 0
From: Petal Ms.
Car: 1990 Iroc
Engine: 6.0
Transmission: 4l65E
Axle/Gears: 373 zexel torsen
Re: cleaning injectors can it be done?

Just a follow up I used TPI,s advice on cleaning and got my car cranked for 1st time in 4yrs.Running a little rough but its running.
Reply
Old Aug 15, 2009 | 11:16 PM
  #15  
FSTFBDY's Avatar
Supreme Member
iTrader: (33)
 
Joined: Jul 2000
Posts: 5,945
Likes: 1
From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: cleaning injectors can it be done?

Glad it worked out for ya.
Reply
Old Sep 15, 2009 | 07:01 AM
  #16  
Toehead's Avatar
Supreme Member
 
Joined: Jul 2005
Posts: 2,123
Likes: 0
From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: cleaning injectors can it be done?

Does anybody know if GM lt1 injectors have serviceable filters?
Reply
Old Sep 15, 2009 | 07:47 AM
  #17  
southbay08's Avatar
Sponsor
15 Year Member
 
Joined: Nov 2008
Posts: 1,528
Likes: 49
From: Rockville Centre, NY
Re: cleaning injectors can it be done?

if your filters are dirty, just pop them out and replace them
Reply
Old Sep 15, 2009 | 08:10 AM
  #18  
Toehead's Avatar
Supreme Member
 
Joined: Jul 2005
Posts: 2,123
Likes: 0
From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: cleaning injectors can it be done?

Thanks for the reply. I scored a set of two lt1 fuel rails with injectors for 50 bucks. I havn't seen them yet, but they were running pulls and I am going to replace my stock injectors this winter when I do the valve stem seals.

How do you recommend I check? Do you sell the replacement filters?

Thanks!
Reply
Old Sep 15, 2009 | 10:16 AM
  #19  
southbay08's Avatar
Sponsor
15 Year Member
 
Joined: Nov 2008
Posts: 1,528
Likes: 49
From: Rockville Centre, NY
Re: cleaning injectors can it be done?

we sell the filters, but we will just send you a set if you decide to change them out. Just PM us with your address, but Just know that changing the screens is not the answer to a "clean" injector.
Reply
Old Sep 15, 2009 | 05:42 PM
  #20  
Toehead's Avatar
Supreme Member
 
Joined: Jul 2005
Posts: 2,123
Likes: 0
From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: cleaning injectors can it be done?

Wow, that's really nice of you!

I realize this.. I know that I really should have them ultrasonically cleaned while being pulsed, but I just moved out on my own and am on a killer budget...
How much do you charge per injector? I'll have a spare set, so maybe i'll send you a set to work over with my tax rebate!
Reply
Old Sep 15, 2009 | 05:54 PM
  #21  
southbay08's Avatar
Sponsor
15 Year Member
 
Joined: Nov 2008
Posts: 1,528
Likes: 49
From: Rockville Centre, NY
Re: cleaning injectors can it be done?

Originally Posted by Toehead
Wow, that's really nice of you!

I realize this.. I know that I really should have them ultrasonically cleaned while being pulsed, but I just moved out on my own and am on a killer budget...
How much do you charge per injector? I'll have a spare set, so maybe i'll send you a set to work over with my tax rebate!
I hear ya! We charge $15 per injector for the clean and flowtest service, but again if you just want the screens for now we will send them to you no charge.
Reply
Old Sep 16, 2009 | 04:49 PM
  #22  
Toehead's Avatar
Supreme Member
 
Joined: Jul 2005
Posts: 2,123
Likes: 0
From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Re: cleaning injectors can it be done?

You have a PM!
Reply
Old Sep 17, 2009 | 03:15 AM
  #23  
TXFBODYGUY's Avatar
Junior Member
 
Joined: Aug 2009
Posts: 31
Likes: 0
From: odessa/TX
Car: 1986 I-ROC
Engine: TPI 305
Transmission: STOCK
Axle/Gears: STOCK
Re: cleaning injectors can it be done?

i had this same problem as my car had sat since 95 all i had to do was a new fuel pump and 2 16oz cans of b-12 in the tank and let it run and they cleaned right up
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
specialized
TPI
27
Jun 18, 2022 09:26 AM
Street Lethal
Power Adders
634
Apr 30, 2019 12:14 PM
69 Six Pack
Camaros for Sale
13
Oct 5, 2015 07:51 PM
mdtoren
TPI
12
Aug 23, 2015 12:52 PM
mdtoren
Tech / General Engine
0
Aug 16, 2015 05:45 PM




All times are GMT -5. The time now is 04:14 PM.