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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? |
#2
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Quote:
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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84 300D, 82 Volvo 244Gl Diesel |
#3
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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? |
#4
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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. |
#5
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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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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
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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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84 300D, 82 Volvo 244Gl Diesel |
#7
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Quote:
These machines are expensive.
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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine) Raleigh NC - Home of deep fried sushi! |
#8
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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? |
#9
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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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Codifex 1981 240D ChinaBlue (Got her running with a donor engine.) 1983 300DTurbo w/sunroof. 1984 300TD manual sunroof. (Electrical Gremlins) |
#10
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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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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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Grumpy Old Diesel Owners Club group I no longer question authority, I annoy authority. More effect, less effort.... 1967 230-6 auto parts car. rust bucket. 1980 300D now parts car 800k miles 1984 300D 500k miles 1987 250td 160k miles English import 2001 jeep turbo diesel 130k miles 1998 jeep tdi ~ followed me home. Needs a turbo. 1968 Ford F750 truck. 6-354 diesel conversion. Other toys ~J.D.,Cat & GM ~ mainly earth moving |
#12
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Quote:
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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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine) Raleigh NC - Home of deep fried sushi! |
#13
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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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84 300D, 82 Volvo 244Gl Diesel |
#14
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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. |
#15
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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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