Diesel Fuel Injector Test

[@whatsnextgarage]

Great explanation!! That is a first for me, actually seeing how a mechanical diesel fuel injector works! Well done!

[@WorkshopRebuild]

I appreciate it! It's always great to learn something new and maybe in the future you'll be able to save some diesel injectors yourself. It can get costly if you need to exchange the full injector. Most of the time, the nozzle body (tip of the injector) will tend to leak and ONLY this must be replaced. Thanks again, Enjoy your week

[@daletustison8550]

Very Good, Thanks. No leaks showing. It runs smooth. I was just thinking about how the feed tube mates into the injectors and where the leaked fuel would go.

[@WorkshopRebuild]

I'm glad you don't have any leaks! The sealing mechanism in this case is a tapered fit between the high pressure fuel line and the injector body. Most of the time you will have diesel fuel on the top of your cylinder head or it sprays in the opposite direction, between the fuel line nut and the fuel line. Either way, when you have a leak it sucks... I hope your engine keeps on running nice and smooth. Regards Andreas

[@frogmanbrabs]

Thanks for a very easy to understand video explaining the workings of a diesel injector. I'm having problems with white somke from my VW T4 van and I have removed the injectors and now feel confident enough to clean them and test them myself. Hopefully it's a very simple fix like the injector seals.

[@WorkshopRebuild]

Hi there! Thank you for tuning in and leaving a comment! White smoke on diesel engines is most likely a sticky injector (stuck in open position and leaking) or even a faulty spray pattern (bad injector nozzle). I am not familiar with the VW T4 injectors, but if you have a mechanical injector like the one in this video, you should be able to repair it pretty easily. Make sure when you take your first injector apart that you don't loose any parts. Some shims and pins can be VERY SMALL. Regards Andreas

[@frogmanbrabs]

@@WorkshopRebuild Thanks. I tested the electrical connector yesterday and didn't get a reading so I'm thinking that could be the problem. The T4 has 3 mechanical injectors in cylinders 1,2 and 4 and an injector with an electrical connection in cylinder 3.The seals seemed in good condition when I removed them but obviously will need replacing with new ones and there was a slight build up of oil deposits around the nozzles. I have cleaned the 3 mechanical injectors but the one with the electrical connection will probably need replacing. Your video has helped immensely. Thank You.

[@WorkshopRebuild]

That‘s awesome! Oil deposits are normal for injector nozzles and with a little but of mineral spirit it can be removed. I wonder what the wires are for on injector number 3. is it possible that this is a cylinder head temperature sending unit? Some European manufacturers had weird alternatives to a coolant temp.sensor that was physically threaded into the cylinder head... Let me know if you get your engine up and running again with no smoke😃👍🏽

[@Beparepa]

You are knowledgeable abd good at explaining. Thank you for the video

[@WorkshopRebuild]

Thank you for your kind words, I really appreciate it! Thank you for watching - Andreas

[@landyandrianantenaina6784]

Hello from Madagascar! Good job man;i appreciate it.

[@WorkshopRebuild]

Thanks for tuning in! Cheers from 🇨🇦

[@endurofan9854]

thanks for sharing bro, this is an excelent presentation... hope i'll have my own tester someday

[@WorkshopRebuild]

I'm glad you enjoyed it and thank you so much for leaving an insightful comment like this! If you ever need more info, be sure to hit me up. Regards Andreas

[@sduncan9rockbuster]

Good video and explanation, thank you for sharing!

[@WorkshopRebuild]

Hi Stuart, thanks for watching this video and leaving a positive comment! I'm glad you enjoyed it. Regards Andreas

[@leslieckchew5108]

Excellent explanation !

[@WorkshopRebuild]

Thank you so much!!

[@gamer78full]

Great video! About to test my first set of injectors. If theyre leaking would a new nozzle fix it up? Or there’s more to it?

[@WorkshopRebuild]

Thanks a lot for your feedback! If your injectors are leaking or even if you have a faulty spray pattern, you can replace your nozzles. Most injectors have shims behind the spring, in order to allow them to open at the correct pressure. Sometimes you can reuse the old shims because they are the right thickness and sometimes you have to replace them with thinner or thicker ones. Let me know how it goes. Regards Andreas

[@beno.9958]

Great video. Where can you get replacement parts for injectors?

[@WorkshopRebuild]

Thank you! There are many sources for injector parts online. You just have to know your injector model and you‘ll probably find the parts.

[@SantiagosProjects]

Thanks for sharing I’ve never worked on Diesel engine before I do with gas engine but not diesel but I own 2 garden tractor diesel

[@WorkshopRebuild]

Thanks for sharing your experience Santiago! It's always great to be able to learn on a gas engine and once you have that sorted out you may want to try out diesel engines! They are very fun and with a little bit of practice you'll be amazed what you can achieve. Thanks for tuning in, I appreciate it. Regards Andreas

[@chrissein632]

Super explanations. Great video

[@WorkshopRebuild]

Thanks for your feedback! I love making videos and I wish to share more sometime soon. Regards Andreas

[@landyandrianantenaina6784]

Ton of thanks man!

[@WorkshopRebuild]

You're more than welcome! Hope you can use these tips for your own injector issues.

[@Matthew-sc1]

Your channel really needs more subs! The information you share is so valuable. Thanks again Andreas

[@WorkshopRebuild]

Thanks Matthew! I'm glad you enjoyed this video

[@titusmulumba314]

Thank you for the educative video! What do you use to lubricate the valve nozzle?

[@WorkshopRebuild]

You're more than welcome and thank you for tuning in, it's much appreciated! Before assembling the injector, you will want to coat all internal parts with diesel fuel. The diesel fuel will act as the lubricant in this case and it does the exact same while in operation. If you tend to store injectors for a longer period, you can apply a very thin film of oil around the nozzle parts. I hope this helps! Regards Andreas

[@OnANewTack]

Great video, thank you! Hoe difficult is it to find the pressure specs for a specific injector (Kubota 1G677-53903 , for example)?

[@WorkshopRebuild]

Thanks a lot! Here is what I found online: Operating (Injection) Pressure: This is usually around 140 to 160 bar (2,030 to 2,320 psi), though it can vary depending on the specific model and application of the engine. Opening Pressure: The opening pressure is typically set within the same range as the injection pressure, often around 140 bar (2,030 psi), but it can vary slightly based on specific calibration.

[@RanjitSingh-h8b]

Good work 👍

[@WorkshopRebuild]

Thank you!😃

[@albertkaladawi201]

Magkaano Po Sir

[@kitkatthemostloveddog7028]

Very good information. Thank you

[@WorkshopRebuild]

Thanks for your feedback! Regards Andreas

[@jorgeconceicao6864]

Otimo ensino mestre eu ja imagino o que voce ensina mesmo em ingles , como aprendeli na escila sou tecnico em bomga ingetora diesel e ja lnagino seu ebsino grato

[@WorkshopRebuild]

I appreciate your kind words and I'm really happy your found this video. It's fun to share this information and I hope other viewers will find this just as helpful. Thank you, Jorge! Regards Andreas

[@Kumarkumar-mf3xv]

Good explanation

[@WorkshopRebuild]

Thank you for your feedback Kumar! Regards Andreas

[@frederiklansu270]

good info ,thanks

[@WorkshopRebuild]

You‘re very welcome. Thanks for your feedback🤝🏻

[@selfsufficientlifestyle8686]

Great video! Are those injectors from your JD 855? I am rebuilding a JD 755 and was going to get my injectors tested but may buy a tester and do it myself. Thank you

[@WorkshopRebuild]

Hi there, yes this is the injector from my JD855 and they might even be the same as the JD755 injectors. If you want to test them yourself that can be done with a handheld injector tester just like the one in this video. Most common faults of injectors are faulty spray patterns (damaged or clogged nozzles) and leaky injector nozzles (worn nozzles). If you encounter this, you can replace the nozzle in most cases. I hoe this helps. Regards Andreas

[@selfsufficientlifestyle8686]

@@WorkshopRebuild Thanks, the 755 injectors are a little different. The engine is an indirect injection diesel vs the direct injection 855. I think I will buy a tester as I have 3 diesel tractors.

[@erbfarms50]

Great video! I have a tester like yours. Where can I buy an adaptor to hook it to Farmall 560 injectors?

[@WorkshopRebuild]

Hi there, thanks a lot for your feedback! Maybe you could use a fuel line from your Farmall 560 directly to this injector tester! If that's not the case, you could find an adapter from your fuel line to the injector tester fitting. If both of these options don't add up, you might need to get a custom fuel line made. (This will be the most expensive option). I hope this will help with your decision-making. Regards Andreas

[@erbfarms50]

Do you have any idea of a source for adapters?Thanks for the reply! Ralph Erb, Emmett, idaho@@WorkshopRebuild

[@knuckle47]

Great stuff: did you reverse the wear side of the separator plate and if you needed shims, is there a designated value to raise the release pressure per shim? Do you add more shims to get your release pressure at the 2700 or are shims variable in size? Do new springs eliminate shimming?

[@WorkshopRebuild]

Thanks a lot for tuning in and leaving a comment! I did not need to reverse the separator plate, but this can be if yours is heavily worn. The bores of the separator plate line up whichever way you place it, so there shouldn't be a big issue...at least in this injector! The shims add more tension to the spring and this brings up the opening-pressure of an injector. Each shim was thicker by 0.06mm and this added around 50-70PS. Every injector is different, so your values may vary! These injectors are around 33 years old and I needed to add shims to reach the specified values. You'll never be above the pressure rating unless you add too many shims and that would be very bad for your engine anyways. Almost all injectors are shimmed, because the art of spring manufacturing still has tolerances and the easiest way to setup an injector is to add a shim or two. This is the cheapest alternative for all manufacturers and if anything wears out over time, just add another shim. I hope this will help along your injector repairs. Thanks again for your comment. Regards Andreas

[@knuckle47]

@@WorkshopRebuild thank you for all the details… my 1995 diesel will be singing

[@WorkshopRebuild]

You‘re more than welcome! Enjoy your diesel repairs😃👍🏽👍🏽

[@muhairwebrian2703]

Thank you for the good job bro, where can I buy a genuine nossle tester and at how much, thank you once again

[@WorkshopRebuild]

Thank you very much for your feedback! This injector tester is derived from a Bosch injector tester. They are physically the same, but this one happens to be much cheaper. There are many options for injector testers online and I have a link in the description of this video, to the one I'm using here. I hope this helps. Regards Andreas

[@daletustison8550]

I had new injectors installed in my 05 Cummins. How do I know they were installed right and will not leak where the feed tube is forced against the injector?

[@WorkshopRebuild]

Both mating surfaces (the taper on the injector and the taper of the diesel fuel line) must be clean and smooth. If these surfaces and dented, scratched or even mushroomed, you will have leaks. This happens when injector line nuts are tightened too much. For every revolution, your pump will supply fuel to your injectors and this pressurizes the lines. If you have a leak, it usually bubbles around the injection line nut...this is leaking. Your best option would be to smooth out the taper on the injector line with some hand tools or emery cloth. If that doesn't work, you must replace your line. If they don't leak, then you know the are sealing correctly. and your engine should sound nice and smooth. I hope this helps. Regards Andreas

[@chevycub100]

10/18/2022 i bought 2 diffrent testors like youres from amazone when i pump up the injector to test for leaks , i close the valve -- that valve is now locked the psi in the guasge and is not reading the injector psi now.. if the injector leaks guage will not gow down , the psi in guage only reads the psi u pumped it up to be

[@WorkshopRebuild]

Thanks for your great question! According to you description you're doing everything right. Be sure to check your opening test psi and your leak test psi. Some injectors have different ratings (I just want you to double-check). To check for leaks: Pump your hand pump to your desired psi rating. Once reached, gently close the valve. Wait 10-20 seconds and if you see any drips or leaks within this time, your injector nozzle is faulty. Your gauge will start to lose pressure over a longer period of time (maybe 1minute or longer) and not immediately!! If you tighten the hand knob for your valve too much, it is possible that you damaged the internals of this injector tester. I have noticed that they are not the best quality, but with proper care one can test numerous injectors before replacing the o-rings interally. Let me know if you have any other questions! Regards Andreas

[@balodhamicheal8318]

Great information

[@WorkshopRebuild]

I’m glad you were able to find this video helpful! Thank you for Our feedback😃👍🏽

[@rronmar]

Nice description!

[@WorkshopRebuild]

Thank you very much for your positive feedback! It's much appreciated. Cheers

[@perkinsi.e5628]

Pls what material use for the manual base injection pump? Thanks

[@WorkshopRebuild]

The base material is plastic with a metal cylinder + piston

[@KaurRaja]

Very helpful video.

[@frankande8997]

What causes, injector not holding steady pressure

[@WorkshopRebuild]

Faulty nozzle

[@WorkshopRebuild]

Glad you enjoyed it!

[@mm-tc3kt]

Does one have to use diesel for the test ? Another video also showed diesel being used but the host said it wasn't recommended. If not diesel, what ?

[@WorkshopRebuild]

This tester is specifically designed for diesel fuel injectors. The reason for this is to ensure the results align with factory operating specifications, allowing you to accurately evaluate your diesel injectors. Using the correct fuel, such as diesel, which has the proper viscosity and lubrication properties, is essential for obtaining reliable test results. Testing with any other fuel may lead to inaccurate readings. I hope this clarifies things. Cheers Andreas

[@claesmansson9070]

Some videos suggest that assembly should take place under/ in dieseloil.

[@WorkshopRebuild]

Yes it wouldn't hurt to assemble an injector in diesel fuel, because the diesel fuel acts as the lubricant within the injector. Even injector is different, but very similar at the same time. Thanks for sharing this info with me. Regards Andreas

[@michaelcandy6283]

Thank you just brilliant

[@WorkshopRebuild]

You're more than welcome! Thanks for tuning in and leaving this positive comment. Regards Andreas

[@soto575]

Can this tester be effective and the electrical fuel injector ?

[@WorkshopRebuild]

Hi there! I have an electronic device that can be used for common rail injectors along side this hand operated diesel injector tester. It can accept Bosch, Delphi, Denso and some other brand names. The main goal is to reach a certain pressure and allow the electronics to open the injector. I might do a video about this is the future if I find injectors of that kind. Thank you for your inquiry!

[@Jin-Ro]

Great video, really appreciate it. Voted.

[@WorkshopRebuild]

Hi there! Thank you for your kind comment and I'm glad you found this video helpful! Cheers

[@stevekasera5091]

Thanks so much I've gained a lot

[@WorkshopRebuild]

I'm glad you did and I hope this information will be valuable to you if you ever work on diesel injectors. Thanks for tuning in Steve! Regards Andreas

[@user-UnkleAyasi]

Nice shared bro thank you

[@WorkshopRebuild]

Glad you enjoyed this video! Cheers

[@ThanukaRash]

Thankyou ❤

[@WorkshopRebuild]

You're welcome!

[@razvanturcu9871]

Hello, sir! Just one question: I noticed that in the market, there are also cheaper test pumps without that wheel on the right. Will I be able to see if an injector is leaking with one of those?

[@WorkshopRebuild]

Hi there. I've never used one of those before, but I don't believe it will work to test for leaks. The hand pump only creates pressure for each stroke you pump. This means your pressure rises and drops and in order to maintain pressure, you must keep the pressure up. Therefore you must have a valve and trap the pressure between your injector and your hand activated valve. When the pressure is within this area you will look for leaks at your injector. The ones without a hand wheel valve are probably only for spray pattern testing only. I hope this helps you decided which one you want to get. Regards Andreas

[@razvanturcu9871]

@@WorkshopRebuild thank you

[@funnyjoeh]

Thanks 🙏

[@WorkshopRebuild]

I'm glad you enjoyed it!

[@sheerluckholmes5468]

I had a shot every time he said diesel fuel injector and I never made it to the end of the video before I was totally wasted.

[@WorkshopRebuild]

Sounds like you had a good time🤣👍🏽

[@garthmcgibbon4285]

How’s your liver holding out?

[@goomazzz]

How do you release the pressure from the tester when you're going to check the next injector? I tested one of my injectors and when I was done there was still some pressure in the tester (nothing crazy)that didn't go away and when I removed the injector, it squirted back. Is it normal to have some pressure still inside the tester while changing injectors?

[@WorkshopRebuild]

To release pressure from the injector you can turn the knob on the right by 1/4 or 1/2 a turn. Allow the pressure to release by itself and do not turn more. Removing an injector under pressure is very dangerous. Be careful!

[@goomazzz]

@@WorkshopRebuildthank you, I appreciate the advice!

[@danieljohnson9700]

thank you

[@WorkshopRebuild]

You’re welcome & thank you for watching!😃👍🏼

[@samanthaalcide9041]

can I use a similar tester to test the injectors of my ford ranger

[@WorkshopRebuild]

Hi Samantha, the diesel fuel injectors I tested in this video open mechanically (the fuel pressure overrides the spring tension, causing the injector to open). If your fuel injector has a 12V wire leading up to it, then it is opened electronically. Unfortunately, the way this tester is setup, it can only do mechanical injectors. I hope this helps. Regards Andreas

[@beltapatrick3028]

Where are you located? I have Ford Ranger 3.2 Injectors that need to be repaired or serviced.

[@WorkshopRebuild]

AB, Canada! I do not offer any diesel services at the moment. Thanks for your inquiry though. Regards Andreas

[@kubaSWAT]

hi you have the knob on the right, whats for? how to use it thanks

[@WorkshopRebuild]

The knob on the right is to increase the pressure within the injector tester. When you pump the handle, you want to have this turned open 1.5 turns to allow pressure to build up. Once you reach a certain number your injector should open. If you cannot see it correctly while using the handle, you can slowly close (turn) this knob to verify the number more precisely. If you check your injector for leakage, you will have to reach this value by turning this knob. An injector usually opens 50-100psi over your leakage test value. I hope this helps, best regards - Andreas

[@DavidJones-wq5fx]

Hi , do you know the weight ot this tester ? Thanks

[@muhammetdemirci7907]

Where can we find the pressure clock used. What is it called?

[@WorkshopRebuild]

Hi Muhammet, the hand injection pump was purchased on Amazon. I have a link in the description of this video of the exact one I used. I hope this helps!

[@godwinubongtom9736]

How can I get that Hand operated diesel injector

[@WorkshopRebuild]

They ae readily available online

[@victorshamende9335]

Wowc😮 nice teaching

[@WorkshopRebuild]

Thank you very much, Victor. I really appreciate your feedback😊👍🏽

[@FANIMATION1987]

Can we use a gasoline injector to this tester? Ty sir

[@WorkshopRebuild]

Not for this setup

[@FANIMATION1987]

@@WorkshopRebuild ty

[@TigitoComiche]

How many pressure its needed in the injector?

[@WorkshopRebuild]

Most injectors open over 2000PSI. All injectors have different manufacturer specifications

[@harrisonspink244]

Would this work on a common rail diesel injector?

[@WorkshopRebuild]

You need computer controlled regulator for the activation of the nozzle. There are some systems that offer the manual injection tester with the common rail injector attachment, but I have not yet used it.

[@MrBchott]

Can you do a common Rail Injector

[@WorkshopRebuild]

not with this setup

[@eugeniocatarungan]

how much . injector test

[@WorkshopRebuild]

100-200$

[@jaybrown1873]

how can one know opening psi of any injector

[@WorkshopRebuild]

You‘ll find your injector opening pressure online or within a service manual. Most injectors are brand specific and shimmed for your engine. You can either find it according to your engine or the injector brand. I hope this helps.

[@jaybrown1873]

@@WorkshopRebuild I wish it helps but I have looked online, websites and now asking people, still no perfect direction. what im looking for is a place, a book, a site where you can enter part number and get the details.

[@WorkshopRebuild]

@jaybrown1873 What engine are you working on and what part number do you have?

[@СюлейманБерзатов]

❤

[@WorkshopRebuild]

Thank you😊👍🏽

[@tyutuk-hd8uu]

ល្អណាស់

[@WorkshopRebuild]

😃👍🏽

[@Samin7669]

Rs.

[@WorkshopRebuild]

Thank you man! Regards Andreas

[@vinhly7530]

200 bar = 20 MPa.Ok

[@WorkshopRebuild]

Not for all injectors haha

[@jorgeconceicao6864]

Voce so fala em gdingo ; tente dalar em portugues ik

[@WorkshopRebuild]

For now it's only in English, but I will try to improve the video translations over time. Thank you for your comment sir! Regards Andreas

[@justiningram2380]

Slow down on the pop tests especially when you are explaining what your doing

[@WorkshopRebuild]

The pop test should be performed with the hand injector tester in a quick manner. These injectors pop within seconds once installed, so taking your time pumping doesn‘t help the situation (especially if you have faulty injectors). If you want to slow the video down to see the spray pattern, you can simply slow down the playback speed in the video settings. I hope this helps. Regards Andreas

[@ardeiuti]

Could't care less

[@WorkshopRebuild]

Okay sir