RazMan
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| posted on 2/8/10 at 08:28 PM |
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Cleaning fuel injectors?
I've just bagged some larger injectors on eBay for my V6 and would like to get them cleaned properly but my local guy just quoted me £89 + VAT
Is there a Locost way to at least check the spray pattern, or preferably give them a good clean?
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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snapper
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| posted on 2/8/10 at 08:37 PM |
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The only locost solution I am aware of is injector cleaner in the fuel.
The best way is ultasonic cleaning which I assume is what you have been quoted for
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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joni
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| posted on 2/8/10 at 08:45 PM |
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my mate does ultrasonic cleaning far cheaper than that but you would have to post them over here his number is 07779234850 tony is his name say jonny
sent you
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RazMan
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| posted on 2/8/10 at 08:52 PM |
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From what I saw of the cleaning apparatus I doubt that ultrasonics are used. It looked like a system of pumping solvent through the injectors into
calibrated collector jars. What solvent is used anyway?
In the past I have just bunged some BG44K in the tank - expensive but it seemed to make a difference. However, as they are in unknown condition I
would like to do a 'proper' clean before I install them.
Joni - thanks for the tip - I'll give him a call 
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Paul TigerB6
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| posted on 2/8/10 at 09:14 PM |
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quote:
Originally posted by RazMan
From what I saw of the cleaning apparatus I doubt that ultrasonics are used. It looked like a system of pumping solvent through the injectors into
calibrated collector jars. What solvent is used anyway?
That sounds more like the final check aparatus to ensure the injectors are all working properly and flowing fuel at the same rate.
I'd still think the actually cleaning is done by ultrasound in a cleaning agent.
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mark chandler
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| posted on 2/8/10 at 09:15 PM |
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Old EFI fuel pump, and 12v battery charger should sort you out.
Open the charger up, you need a really cheap one with 1 diode, this will provide a 12v 50hz supply as it will pulse with the mains for 50% of the time
at ~ 50 rpm.
Use this to trigger the injector, then big jam jar, half fill with paint thinners or solvent carb cleaner, pipe for the fuel pump pick up, injector in
the top so you can see the pattern then plug it all in.
No need to worry about a fuel regulator as you are not after accuracy, just flow.
Did this with my injectors, after a few minutes the patterns evened out.
If you want to compare rates just drop the injector in another jar and time how long it takes to move the solvent across, again you are just looking
to compare with each other to make sure they are all the same.
Regards Mark
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MakeEverything
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| posted on 2/8/10 at 09:45 PM |
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theres a guy in stevenage that does it for £10 per injector.
Spray pattern and check, strip, service, ultrasonic clean, then re-check and spray test.
Look him up on ebay.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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MakeEverything
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| posted on 2/8/10 at 10:38 PM |
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Here he is
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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RazMan
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| posted on 2/8/10 at 10:47 PM |
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Excellent DIY tip there Mark - cheers
Thanks for the link ME - a bit cheaper than my local guy, but by the time postage is added ..... Looks like he knows what he's doing though
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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atspeed racing
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| posted on 3/8/10 at 07:28 AM |
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we charge £25 per injector on our ASNU machine to clean and test injectors correctly.
if you think the machine is £3000 - thats not locost
the cleaning fluid is £25 for 5 litres and has to be changed regularly - thats not locost.
some of the test blocks for the injectors may only fit a few cars, e.g. subaru/nissan, each test block is £100 (we have a box full of them) - thats
not locost
all the service parts, baskets, filters, o rings etc - they arent locost either.
takes a lot of injectors to get your money back 
ASNU reported stories of people offering these injector services and not doing the job properly (not making any accusations of the man mentioned, just
saying...) , simply because they were not buying the test/cleaning fluid, or the service parts... so be wary of cheap jobs!!
getting ripped off isnt locost either 
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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BenB
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| posted on 3/8/10 at 10:50 AM |
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There was an article in PPC a while back using a PWM modulator, white spirits and a pump I seem to recall.
Thought personally I'd bung some cash at getting them done! Spraying white spirits around sounds a recipe for disaster.
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