Cleaning Injectors, the cheap way

[TechRod]

I'll be watching "Frank's" thread closely now.
Tron and Dune references in one sentence, very cool

[60dgrzbelow0]

Nope.

For my part... I have done my best to design, build and test "Frank" in a way that will clear a path for anyone with basic mechanical skills and some desire to be able to do this on their own to build their versions with these ideas in mind.... and perhaps be able to clean EFIs more often than just every 100,000 Miles or so. AFAIK... This machine is unique in all the non-commercial automotive world and puts real cleaning power into the hands of the average person at a mere fraction of what it would cost to buy an ASNU machine or the like.

This project only needs one last, very important piece of hardware to finally be completed and put to bed: A device that can regulate, actuate and motivate a wide range of Fuel Injectors into a variety of spray patterns that are probably very important when doing the final Flow Balance Testing phase to reveal any "Weak Sisters" and point out any problematic injectors for either additional cleaning or replacement of same, I will only be testing one more set to finish doing a proper and objective evaluation "Frank's" performance. And so now... I am waiting for member I will call "TRON" to build us something to handle these last and final problems and issues.

No problem, Scooter... I'll give it a few days and see what pops from the folks here... usually it takes some time for many to be able to get back and peruse their prior posts to stay topical, so unless I herar from Wrath on my offer or from some of the other Senior Members...To paraphrase Buzz Aldrin ..."You're Number One on the Runway..." for participation...

By the way... Some fairly exciting stuff relating to "Frank" is going on as we speak over on this link...

http://60degreev6.com/forum/showthread.php/42889-Home-Made-Fuel-Injector-Cleaning-Machine/page23

... with the member "OLLOPA" (Rick ...who I call "TRON" because he "Fights for the Users!") is working on his own ideas/invention for a Programmable Electrontric Fuel Injector Driver that if and when he assembles his Prototype...will be put through its paces too ... on "The FrankInjector Machine" !!!

(OLLOPA cum Rick who is now "TRON"...? Jesus...with all these nicknames...the next thing you know... They'll be calling "USAL"...."Paul Mouadeeb" over on the set of "DUNE"...!

http://www.youtube.com/watch?v=fSp4DFPaHPE

http://www.youtube.com/watch?v=2B6jgkcANRE

[TechRod]

I see, in that case I will be waiting with fingers and toes crossed to see what happens

[60dgrzbelow0]

Absolutely, will this eventually be a service that you provide to fellow forum members?

Nope.

For my part... I have done my best to design, build and test "Frank" in a way that will clear a path for anyone with basic mechanical skills and some desire to be able to do this on their own to build their versions with these ideas in mind.... and perhaps be able to clean EFIs more often than just every 100,000 Miles or so. AFAIK... This machine is unique in all the non-commercial automotive world and puts real cleaning power into the hands of the average person at a mere fraction of what it would cost to buy an ASNU machine or the like.

This project only needs one last, very important piece of hardware to finally be completed and put to bed: A device that can regulate, actuate and motivate a wide range of Fuel Injectors into a variety of spray patterns that are probably very important when doing the final Flow Balance Testing phase to reveal any "Weak Sisters" and point out any problematic injectors for either additional cleaning or replacement of same, I will only be testing one more set to finish doing a proper and objective evaluation "Frank's" performance. And so now... I am waiting for member I will call "TRON" to build us something to handle these last and final problems and issues.

[TechRod]

Absolutely, will this eventually be a service that you provide to fellow forum members?

[60dgrzbelow0]

Hey 60dgrzbelow0,

I would happily take you up on that last test batch if Wrath declines.
The injectors in my Chevette could benefit from a good cleaning (94 3.4L "L32") after 108,000 miles

P.S. "The FrankInjector Machine" rules! Nice work!

Hello Scooter....

Let me give Wrath a chance to reply...and I must also allow the other "Elder Members" who have supported its development "First, Second and Third DIBS"...and if none of them "lean into the pitch" I've just soft-balled to Wrath... I will let you know and we can go from there... Fair Enough?

[TechRod]

Hey 60dgrzbelow0,

I would happily take you up on that last test batch if Wrath declines.
The injectors in my Chevette could benefit from a good cleaning (94 3.4L "L32") after 108,000 miles

P.S. "The FrankInjector Machine" rules! Nice work!

[60dgrzbelow0]

Well I'm not very well experienced with it but the one old injector I messed with didn't do anything with the polarity the one way and made horrible sounds after hitting ~5.5V then again the injector sitting in a box for a few years may have played a role in it. I haven't gotten to the point where i need injectors cleaned very soon so I haven't put much thought time or effort into it.

Wrath...

I am still looking to do One Last Real World Test Batch on somebody's Fuel Injector Set... So if you would like to play a role in that final test phase... I would be happy to put yours through their paces on "The FrankInjector Machine" and get an objective understanding of how they perform when you get them back. I will do this free of charge, of course with the understanding that I will post your tests online on my photobucket for each phase of Ultrasonic Cleaning, Pressure Cleaning and Flow Balancing and wait for your precise report on how things go when you get them back and install them. We both live in Florida... so mailing by USPS back and forth should not be that expensive. So I am willing to do this if you will cover the to and from S&H expenses by ground. Oh...and if you have any concerns about my honesty... Please check with Max... tkoforpresident... I recently used a set of his old injectors in the first Real World test and he can fill you in on his level of satisfaction.. Okay? Just let me know. I won't wait for the grass to grow to get them done, either, but they WILL get cleaned on "The FrankInjector machine"... I can promise you that!

[60dgrzbelow0]

Say... Now THIS looks interesting...Take a peek at what "HIPROFILE" mentions about what his simple and inexpensive method is for cleaning EFIs at this other site... He even mentions something about "control mechanisms" he uses for firing the injectors...OTV! Can't have enough new ideas on stuff like this...

http://www.realhomemadeturbo.com/forum/index.php?topic=9974.0

[60dgrzbelow0]

About using "straight" EFI Cleaner in an "ON-THE-VEHICLE" scenario... FOLLOW SUPERDAVE'S ADVICE ABOUT ALWAYS MIXING THE CLEANER WITH SOME TOP-TIER GASOLINE!!! When I have made reference in the past to using pure Chevron Techron or a mixture of Lucas Oil and WD-40... please note that this is strictly for use on "The FrankInjector Machine" as there are no other components being affected by this pure cleaning solution. If you try and BURN pure EFI Cleaner without other very high octane gasoline added as a "buffer" to this mixture ...you will run the risk of high powered detonations to the piston tops... or burning the edges of your valves in the heads like Crispy Fried Pork Rinds!

[Superdave]

I run mine at 50 minus pressure drop so it's pretty close..

[60dgrzbelow0]

anyone have info on how to make a DIY back-flush setup? I have basically everything except that:

DMM, ultrasonic cleaner, injector pulser, bulk order of injector filters/orings/caps ect

For the "Whole Nine Yards" on how to do this successfully... Please see this link to my Epic Post on this Project.

http://60degreev6.com/forum/showthread.php/42889-Home-Made-Fuel-Injector-Cleaning-Machine?highlight=frankinjector

Here is the link to my photobucket that shows all three generations of how to build your own Off-The-Vehicle "FrankInjector Machine" and nearly 300 images and 30 videos on the build(s). The attached image shows what all the aforementioned components look like when properly and safely assembled.

http://s557.photobucket.com/albums/ss19/60dgrzbelow0/HOMEMADEEFICLEANER/

Ordinarily... I would not disagree with Superdave on these issues... but from personal experience... inducing too much Fuel Pressure causes the Rochester Mul-Tech EFIs (P/N 17103007 and P/N 17108326) to hydro-lock or misbehave. Dave uses much larger injectors... so I bow to his experience with those and "Tooning" them.

If you want to skip all the agony of wondering whether these methods (or any others) have actually cleaned the filter baskets as clean as they can get...it might be easier to just replace them completely with new filter basket kits you can get off eBay for under $25.00. Here are the links to a video showing you how this is done in a very simple and straight forward manner and the link to the available product. (Only the portions describing how to R&R the Filter Baskets are relevant to the Multec designed Injectors). If you buy three V-8 kits... you will have enough to replace all the filters in four sets of 6 Cylinder EFI engines. Please notice the poor color and condition of the Multec Filter Basket as it comes out... That Brown Mung is what all the extra cleaning efforts being made are trying to extract...and often this is just an impossible job to do very well... especially when trying to dissolve and eject all that varnished on crap in reverse via The Back Flushing Method.

http://www.youtube.com/watch?v=V2sD5UsOnJs

http://cgi.ebay.com/ebaymotors/Rochester-Multec-Fuel-Injector-Service-Kit-8-Cylinder-_W0QQcmdZViewItemQQhashZitem53de0cc241QQitemZ360207663681QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

[Superdave]

the exact pressure isn't too vital, i just set my dial to 50 when i check the spray pattern. they won't open up much past 70 PSI unless you increase the input voltage and current but that's pointless. Most of them draw around 1 amp each when held open with 13.8V and they will get hot fast with no fluid going through.. it's very easy to damage them.


My 60Hz rig burnt up, now i run a small DC motor with a cam that actuates 2 micro switches as it spins. I have the switches aligned so that it makes a nice pulse pattern.


DO NOT run straight injector cleaner or any other harsh cleaners through them without being diluted. For spray pattern tests i run WD-40 (you can buy it in non spray-can form), it would also do a pretty good job cleaning them as well. Remember that the screens on the input side is where most of the crud ends up and a few shots of WD-40 down in there will foam most of the stuff out.

[scott0999]

anyone have info on how to make a DIY back-flush setup? I have basically everything except that:

DMM, ultrasonic cleaner, injector pulser, bulk order of injector filters/orings/caps ect

[60dgrzbelow0]

Found another superb price and a great sale on eBay for the parts and pieces necessary for an "On-The-Vehicle" EFI cleaning procedure that would require very little modification from its intended A/C Flush purposes. This is the identical AC Flush Kit I employed when building "The FrankInjector Machine"...:

http://cgi.ebay.com/ebaymotors/FJC-2710-A-C-System-Flush-Kit-R12-R134a-R22-/350237821450?cmd=ViewItem&pt=Motors_Car_Truck_Parts_Accessories&hash=item518bcd0a0a

...but as always... the smart man will add an Adjustable Air Pressure Regulator fitted to the Air Inlet Side of this Aluminum Tank (only pressure safe when under 90 PSI inside!!!) and have a steel canister in-line fuel filter and a proper fuel pressure gauge between the air pressurized aluminum cylinder output line and the inlet Schrader fitting connecting to the Fuel Rail Manifold and NEVER exceed the recommended OEM Fuel Pressure ratings...whatever they happen to be for any particular vehicle. And Gentlemen... Please ...Always have a decent ABC Fire Extinguisher nearby when operating anything like this on a running vehicle....