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  #1  
Old 03-31-2010, 04:10 AM
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common rail test equipment


I need a device to diagnose and to test Common Rail injectors.
Do you have something cheap to advice?

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  #2  
Old 03-31-2010, 01:56 PM
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Quote:
Originally Posted by dieseloc View Post

I need a device to diagnose and to test Common Rail injectors.
Do you have something cheap to advice?
When I did a search. common rail injector tester.
Some things came up
One was this PDF
http://www.darwendiesels.com/uploads/files/Common_Rail_Test_Equipment.pdf
one was this U-tub one
http://www.youtube.com/watch?v=g6q8d22RhGc

I did not look at either so that will be up to you.
I dought if you will find something "cheap" as no matter what tester you use something has to create the high pressure for Injection.

If the Injectors use some sort of Solenoid on them part might be able to be tested with a Multimeter. But, each make would have a different test proceedure.
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Old 04-01-2010, 03:34 AM
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I did a search too and found this one:
http://www.dieselland.ee/?page_id=467

Has smbd heard smth about it?
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Old 04-01-2010, 11:33 AM
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U may hav 2 b the.......

okay, I can't do it.

You may have to be the pioneer in this area. About 90-95% of the members here own predominately the diesels that were pre-CDI and don't use the common rail system. There may be a few of them running around, but most of the collective experience (I believe) is with the older stuff.

However... an expert answer only requires one individual expert, so somebody may turn up with something useful. If you do try one at random, post back how it worked out for the next guy with the same question. As the years go on and CDIs get cheap enough for more of us to own them, and our old stuff finally rusts to the ground -- maybe they'll be more prevalent.
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Old 04-01-2010, 12:01 PM
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what's the "pop" pressure on cri? 2000bar? I know it's waaaay up there, so I highly doubt a homemade spray tester is likely to get made.
be really careful with whatever you come up with. high pressure diesel will kill you.
even a slight injection into the body can require amputation.
as always with high pressure devices SAFETY FIRST!!!!!
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Old 04-01-2010, 06:21 PM
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They have a tester on eBay but the description tells that it measures the flow of the return Fuel (I did not take the time to check what make and models).
I do not get how useful this would be with the exception that a high return fuel flow might indicate the Injector is not Injecting.
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  #7  
Old 04-01-2010, 07:21 PM
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Quote:
Originally Posted by dieseloc View Post

I need a device to diagnose and to test Common Rail injectors.
Do you have something cheap to advice?
If you are doing it for your own car, and not working in a diesel shop, it would be much less costly to pay a good shop to test them for you.

These machines are expensive.
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  #8  
Old 04-06-2010, 07:42 AM
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I don't do it for for my own car, I'm trying to organize a small diesel service
I want European equipment for repairing common rail systems
There're a lot of offers from monea.it, programatoribg.com, magasa.com, ditex.it
Can smbd help me to choose equipment? Is here anybody who had used it?
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  #9  
Old 04-06-2010, 12:57 PM
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It seems to me that it would be pretty easy from a theory point of view. Correct me if I'm wrong.

1. Test pressure of common rail with no injectors firing. Injectors and hardlines should be part of the equation. i.e. they should not leak under normal rail operating pressure.

2. Injectors should pop not at a particular pressure but only when the signal is sent.

3. Clean spray pattern is still necessary for optimum combustion.

4. Main problem is to make sure the computer is working properly, that all the sensors are functioning and the proper injector pops when the signal is sent to it.
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  #10  
Old 04-07-2010, 05:49 AM
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Absolutely right!

But my question is still without answer. What equipment do you use to repair injectors?
If there are owners of diesel cars, can you tell me where do you go if you have some troubles, what equipment do you use, or what equipment specialists use for you? (I mean common rail
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  #11  
Old 04-07-2010, 08:47 AM
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Welcome to the brave new world !!
Maybe some one could put up some info about CR, It has changed some what since the Detroit days of pumping injectors!
The high pressure fuel pump may also need testing. That may be the test that 911 is talking about.
I can see eventually some one will make a backyard unit that uses a HP pump off a motor.
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  #12  
Old 04-07-2010, 10:09 AM
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Quote:
Originally Posted by dieseloc View Post
Absolutely right!

But my question is still without answer. What equipment do you use to repair injectors?
If there are owners of diesel cars, can you tell me where do you go if you have some troubles, what equipment do you use, or what equipment specialists use for you? (I mean common rail
Take a look at this.
Are you asking for a recommended brand? The answer is 'injector service tools.' Sockets, wrenches and some from the category of 'special tools' (tools that have only one intended purpose.)

There are various companies that make common rail test equipment. I think what everyone implies is 'could you be more specific?' The equipment used will vary with the problem. I took the Mercedes training class for common rail about 5 years ago. Common rail injectors are piezoelectric and there is only a limited limited amount of service that can be done to them, all depending on the problem. To give you an idea of how detailed it is, I recommend reading a good service manual or even taking a class. Most of us here have element pump systems that work at much lower pressures and still knowledge and safety are critical. Internet sources are good for sharing information but not the same as a class or a good shop instructor. This kind of work can and does kill people if they are careless or not properly trained.

Take a look here. This is an example of how NOT to do CDI testing. Can everyone see where the potentially deadly disaster will happen sometime in the future?


The nature of your questions suggests to me that you likely have not worked in a diesel service facility (dealership, factory or military depot.) This might sound funny but the best place to get the answers you're looking for is to get a job working in a shop that services common rail systems.
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  #13  
Old 04-07-2010, 03:08 PM
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There might be anothe issues.
On the Older Fuel Injection systems the spec to set the IPs only go to Authorized Dealers.
Then there is the EPA that is going to dictate what equipment you have to have to do the job.
The Guy I used to work for lost his Standyne (Roosamaster) certification because he refused to spend the money to update his Test Stands. The Test Stand mods were dictated by the EPA.
The last issue is in order to save money you would need to specialize in one companies system; like Bosch. Otherwise the cost of all the adapters; programs and other doodads goes up quickly.
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  #14  
Old 04-14-2010, 05:31 AM
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Thank you so much for your replies and links, but we’ve seen a lot of variants of this kind of testing even live. btw among all videos this Eve’s daughter impressed me the most
http://www.youtube.com/watch?v=XdAARauDoKQ

For sure all mud and mess is not very attractive (though we can do it in cleanliness with trendy accessories), but do you agree it’s enough for basic testing?
1) emission flame of nozzle injection is visible
2) we can see that nozzle injection is of good quality
3) an injector is activated by electrical signal
4) this technician checks fuel value that goes back
Probably it’s only 5% that should be done for injector testing, but there’s minimal result.

Last edited by dieseloc; 04-14-2010 at 06:30 AM.
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  #15  
Old 09-18-2012, 03:11 AM
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I bought one Common Rail Injector Tester before
it worked really good
and upgrade recently
this is the upgrade version
http://www.uobd2.com/wholesale/2012-newest-high-pressure-common-rail-injector-tester-3595.html

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