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Nice contraption you have there. It does what you wanted it to do and that is what counts. You probably are saving $12 per Injector by cleansing them yourself. Def. will add up over time! -
Home made efi (otv) cleaning machine...works!!!
Homemade EFI Cleaning Machine Progress?....Success!!!!
For the "Cliff Notes" videos-photos version... Please visit here:
For the more detailed explanation...
Okay... with the arrival of the first cool day we've had down here in Florida and the final acquisition of all the remaining parts,etc. I finally managed to finish designing, building and testing my "HOMEMADE EFI CLEANING MACHINE". I know...I know...many of you have either admonished me (or soon will) against bothering with this project because of the supposed relatively inexpensive "Mail Out for Cleaning" services that abound on the Internet. Sorry...but I have too many EFI sets to evaluate to do it that way.
My problem is also that I can't stand being held hostage to the abilities of others... and I really do like thinking up ideas on how to build a "Better Mousetrap" ...especially when my ideas really work. And this one really does, fellow forum members. I won't bore you with all the parts and pieces that are involved since the link below will take you directly to my photo-bucket and show you everything in the way of parts, pieces and the design. Just know that the last portion of the project was to build a sturdy metal frame to organize and support this "Jarvik Heart Machine" and have it set up in way that prevents me from using the device inside my garage and risk a fire or other unnecessary hazard. I chose to use up the angle iron I could scavenge from two old bed frames and after chop-sawing my way through what was needed, I constructed a very stable support frame with a handful of bolts, nuts, flat and locking washers that has a remarkably small foot print and gives easy access to all the works and allows easy removal and replacement of the EFIs when the machine has done its job on them.
I shot two videos; the first just shows an overview of the EFI cleaning apparatus and the second shows the marked difference and very real improvement in the EFI spray performance after about twenty minutes of operation using a blend of straight, pure EFI cleaning fluids and no gasoline. I chose to use several quarts of two different brands of concentrated EFI cleaner including Sea Foam and because my in-line design includes a decent metal full filter canister on the input side, I am able to repeatedly recycle the fluid during several operational tests and prove it is working efficiently and economically.
In lieu of using a complicated electric pump design which I had originally planned, I opted instead to use an aluminum A/C Pressure Cleaning Fluid Cylinder feeding into a 60 PSI steel canister fuel filter and then down into a fuel pressure gauge. I'm using a simple air pressure quick-on adjustable valve on the air-in side to control the amount of fuel pressure to around fifty to sixty (50-60) PSI. This obviated the need for a vacuum on the stock pressure regulator on the stock V-6 EFI manifold , which I removed and blocked off with some JB-WELD. The fuel injectors are actuated by the three stage OTC controller that varies the style of fuel delivery and provides a range of pressure and spray patterns to ensure that the fuel injector cleaning fluid(s) will reach thoroughly inside all of the FI innards. That about does it. The only weakness that I have encountered is the fact that the OTC EFI tester is really designed to be used on individual fuel injectors, but in this case...I was able to get to actuate a maximum of three injectors at a time. I simply switched the connection banks to clean all six fuel injectors.
One last point...I know that the clear tubes don't act like the graduated cylinders in the $10,000.00 cleaning machines...but trust me... I could tell in short order that of the six EFIs in the set I was testing, four were responding identically in flow and sound, while one refused to function at all until tapped with something to loosen the insides...and the last one had a low pressure volume and sounded very oddly different from the rest while cycling. So if nothing else... I now know that the last two either need another round of treatment in a heated ultrasonic bath of concentrated "Purple Power"... or they will simply need to be replaced. I have three or four other sets of EFIs to test the machine out on and will report what I find when they are done. I welcome any and all constructive criticism and ideas on how I can improve what I have already done. Thanks for listening and I hope that others can benefit as much from this project as I have.
Last edited by 60dgrzbelow0; 10-07-2009, 03:30 PM.Leave a comment:
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3400beretta...
Sorry for the long delay in responding...but other more pressing 'fixes' were standing in the way of my working on this next 'nutty invention' of mine. But now the completion of the engine is nigh, and I'm going to need the stock set of Fuel Injectors to be Spic (and also Span) for the moment when I fire this motor back to life...
I see what you mean about the realities of electricity. So I tested the unit with an older set of injectors via a dual patch cable from the OTC Tester into the six position EFI harness and gradually added consecutive connectors to all six ..at which point the voltage dropped too much as you suggested it would and failed to activate at all through the device and into the Fuel Injectors. I was, however, able to get some positive results by further experimentation.
I finally removed the connectors one at a time and discovered (using the test injector set and some NOIDS) that the OTC device WILL make three of the injectors activate simultaneously. My thinking at this point is though, that I've either got to visit radio shack and try to find the dope on how to build a device capable of delivering the right ohms/milliamps/volts to activate all six (6) without a drop in voltage from the parallel realities you predicted... or just be satisfied with making only three to function on either manifold bank at any one time during an extended EFI cleaning cycle.
Why does this little pile of electronic Doo-Dads have to cost so damned much...and somehow...always fall just short of functionality to do the entire jobs on things? This is the kind of stuff that makes me go CRAZY!
Tomorrow, I'll be making the metal vertical stand to hold this entire "Heart-Lung" looking apparatus in place by some form of a more organized fashion by dragging out several folding angle iron bed frames and try to kill two birds with one stone. I have a new 90 AMP Flux Wire Welder I need to 'get jiggy with' before I attempt to weld the Oil Screen Pick Up Tube on a brand new Melling Oil Pump. I would just as soon booger up those angle iron rails while practicing as to mess up the pump without knowing how touchy the damned, new-fangled thing might turn out to be. If I screw up a few times there, no harm done. After a handful of two-4 minute welding sessions...maybe the knack I had back in high school (over forty years ago) will come back to me! LOL. I'll have to take some digital pics of both jobs and suffer the criticism I will probably deserve from the members who can't WAIT to see the mess I'm about to make of them...LOL
(Now let me think...What was it that Mr. Anderson in Shop Class always used to tell us to listen for when arc welding?... Oh yeah... "The Sound of Bacon Sizzling...")Last edited by 60dgrzbelow0; 07-13-2009, 10:37 PM.Leave a comment:
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You may not be able to do what you want with that device. I'm assuming its ment for a single injector? You must wire all injectors in parallel, in order to obtain the necessary 12 volts at each one for them to fire. The problem with that is, the resistance is going to drop fairly low. Assuming you are working with GM 660 injectors, each one is around 12.5 ohms, and all 6 in parallel is just over 2 ohms. If you can change settings on that injector tester, set it for a low impedance injector test, an example would be Quad 4 injectors. Or it may internally change itself, you have to read the directions. Either way, set it up for a test of a Quad 4 injector, or other low impedance injector, and you should be fine.Leave a comment:
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Home Made Fuel Injector Cleaning Machine
After spending quite a bit of time and no small amount of jingle on this idea, I have finally finished the mock-up and construction of an honest to goodness, Off-The-Vehicle, Home Made Fuel Injection Cleaning Machine... But I could use a little help with the one, last item that I am uncertain of: The EFI Harness.
What I want to do is have all six fuel injectors firing simultaneously when I press the button on the OTC Electronic EFI Tester while the machine is pressure cleaning the injectors...and I'd like to to do this without burning this pricey device to a crispy, golden brown. I am generally on unfriendly terms with electricity in the purest sense of its use, so I'm uncertain as to whether I should hook the pigtails up in series.. or in parallel. I have all the construction images (with detailed comments) on my Photo-Bucket to give you an idea of what I am up to here:
I would be very grateful for any help those in the electrical know might give me (a simple diagram of the six connectors and two wire arrangements between them would be grand). I am so close to firing this thing up and seeing what it can do... I would hate to FUBAR so much of it before I can actually see if the damned thing works.
Thanks in Advance...Last edited by 60dgrzbelow0; 10-05-2009, 09:15 AM.
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