Nice and informative video but I wonder what it would do to the fuel consumption and engine performance, anyways thanks for taking such a pain to pass on the info
@@westendinventor364 from what I've seen, and experienced, diesel takes some time to burn that's why you start injection before TDC as compression raises then ignites the diesel, and you still pumping diesel in untill after TDC, because if you inject all the fuel after TDC at higher RPM is going to smoke because compression will decrease and burn will stop happening, heating up diesel causing black smoke. The point is to ajust timing so it injects somewhere between bTDC and aTDC, finishing injection aTDC. Somitimes injection is started 30° bTDC so it has time to dump all the fuel needed in time for the engine to burn it properly. Timing depends on engine load and RPM
I think fuel injection timing for 4d56 engine is set default to 7-9 degree ATDC . My question in large diesel engine why the fuel injection timing is at 12-18 degree BTDC commonly?
After a fanbelt shredded and went under the cover for the timing belt on a 1.9 diesel Citroen the car wouldn't start ,however the camshaft wasn't smashed up so i put another cambelt on but the car wouldn't start. I never had a dial gauge so I moved the injection pump one tooth at a time and listened to it cranking, I ended up moving the pump by 6 teeth and it ran fine then . I can only conclude that the inside of the pump had been damaged and moving it compensated for the damage.
In a Renault engine happened to me that the pulley tooth broke off, getting the cams off point, take a look and see if your pulley didn't spin on the pump shaft. Could be that, just taking a wild guess. Hard to believe that the pump internals could get damaged to the point of 6 tooth offset... Something would break because the metals in the pump are very stiff, not the bending type... That's my guess
If the fuel is still introduced after tdc with the pump one tooth advanced, then how many degrees after tdc does the fuel get injected when the pump is set as intended?
In Toyota 1HZ diesel engine the pump and the bottom camshaft and set the same. Can only change the tooth in the top valves cam. Is that right? So can only adjust the timing with the pump twisting 15 degrees?
Is it possible i have turned the top cam around one full turn and mixed up my timing by mistake. Something is making this engine not run properly and ive done the dial gauge this to 1.03-1.09 a dozen times keeps running bad and chocking itself with smoke and stops.
If your vehicle has a running issue.. Sort the issue! Don't start playing around with factory settings to cure a problem, you will only make more problems or make the original problem worse. Factory settings are set for a reason.. Just think about this for a moment. Now, if you are a competent engineer and have a good running machine and you want to tweek power and fuel efficiency... that's good (just so log as you know exactly what you expect to happen). Don't just move pump settings for the hell of it because you can cause so many other issues.
@@engenhokas69 Hugo, I'm in agreement with you there. The issue was to correct an engine running issue by advancing the diesel pump by 1 tooth to correct this fault. If 100% of motor vehicles are produced at a basic tune and are running properly then adjusting the pump to correct any fault is incorrect and will just cause further issues. This person just needs (first of all) to go back to the basics and correct the initial fault. Only then can you start changing setting to improve power/efficiency etc. Just my pov though. 👍
Is it me or , when people say advance the pump, actually mean the things happening first?? I work with motorcycles, and when we refer to advance camshaft or advance ignition timing, we mean that would happen before. And you exactly proved that, at the end. Advance something in a engine mean you want to happen first or before it should do.
Sometimes you cant mechanically rotate the pump enough to match the right timing, so you use the tooth trick and then rotate to ajust timing. Every pump is calibrated differently. Stock engine is calibrated for low emissions, not efficient power production.
Sir safe po ba Nyan na nka advance po .. Kasi sakin hard start kahit mainint na makina Wala bang magiging issue sa engine .. pasagot po salamat po good blessed po
Yes, because diesel is injected until too late and doesn't burn, only gets hot and black like burnt food, that's the smoke. Heated up diesel until it turns into coal
No, it is not safe. If you went to school for ICE. You should know that you are going to bend the con-rod and crankshaft by advancing the timing of the combustion. Also known as engine knocking. Either you advance or retard the timing you loss power.
I've heard of offsetting by one tooth before with 1990s Lucas EPIC instead of keep replacing a good belt just because it stretches at high rpm. But can't see how that changes the timing (unless it's the mega-old open loop tech with mechanical IP) , The crank sensor and the ECU mapping does the timing, not the teeth. If timing went out of timing actuator control range then the PCM would light the EM light or go limp mode or stop immediately after starting.
Salamat Po, from the US! I have a Japanese import L300 Stareagon with the 4D56 and your videos are very clear and informative.
Nice and informative video but I wonder what it would do to the fuel consumption and engine performance, anyways thanks for taking such a pain to pass on the info
You still have to tweak it by tilting the pump, but for so long as diesel in injected after atdc its ok even if you advanced it by one tooth.
Advance timing increases fuel efficiency and power output.
@@westendinventor364 from what I've seen, and experienced, diesel takes some time to burn that's why you start injection before TDC as compression raises then ignites the diesel, and you still pumping diesel in untill after TDC, because if you inject all the fuel after TDC at higher RPM is going to smoke because compression will decrease and burn will stop happening, heating up diesel causing black smoke. The point is to ajust timing so it injects somewhere between bTDC and aTDC, finishing injection aTDC. Somitimes injection is started 30° bTDC so it has time to dump all the fuel needed in time for the engine to burn it properly. Timing depends on engine load and RPM
kung ganito mga prof sa mga school gaganahan ka talaga makinig haha
I think fuel injection timing for 4d56 engine is set default to 7-9 degree ATDC . My question in large diesel engine why the fuel injection timing is at 12-18 degree BTDC commonly?
Thanks you sir..maraming natuto dahil sa you..isa na ako doon..mabuhay ka sir
Thanks you for your videos and happy New year 😊
Happy new year too
Thank you for sharing I understand more now about this engine
Hi Sir. Is it ok to advance the injection pump all the way only instead of also advancing the timing of fuel pump by 1 tooth?
After a fanbelt shredded and went under the cover for the timing belt on a 1.9 diesel Citroen the car wouldn't start ,however the camshaft wasn't smashed up so i put another cambelt on but the car wouldn't start. I never had a dial gauge so I moved the injection pump one tooth at a time and listened to it cranking, I ended up moving the pump by 6 teeth and it ran fine then . I can only conclude that the inside of the pump had been damaged and moving it compensated for the damage.
In a Renault engine happened to me that the pulley tooth broke off, getting the cams off point, take a look and see if your pulley didn't spin on the pump shaft. Could be that, just taking a wild guess. Hard to believe that the pump internals could get damaged to the point of 6 tooth offset... Something would break because the metals in the pump are very stiff, not the bending type... That's my guess
Salamat boss, ive learned alot from you, never stop sharing. May God bless you forever...
If the fuel is still introduced after tdc with the pump one tooth advanced, then how many degrees after tdc does the fuel get injected when the pump is set as intended?
My injection pump on my 4d56 engine was 1 tooth out. It still drove fine but had a louder diesel knock
Did you advance or recue it?
In Toyota 1HZ diesel engine the pump and the bottom camshaft and set the same. Can only change the tooth in the top valves cam. Is that right? So can only adjust the timing with the pump twisting 15 degrees?
Is it possible i have turned the top cam around one full turn and mixed up my timing by mistake. Something is making this engine not run properly and ive done the dial gauge this to 1.03-1.09 a dozen times keeps running bad and chocking itself with smoke and stops.
My kia k2700 is not returning diesel properly it's leaking from the injector washers
I did it on my 4d56 engine it works fine
Any gains or dis advantage
If your vehicle has a running issue.. Sort the issue! Don't start playing around with factory settings to cure a problem, you will only make more problems or make the original problem worse. Factory settings are set for a reason.. Just think about this for a moment.
Now, if you are a competent engineer and have a good running machine and you want to tweek power and fuel efficiency... that's good (just so log as you know exactly what you expect to happen).
Don't just move pump settings for the hell of it because you can cause so many other issues.
Stock engine is tuned for emissions, this way you tune the engine to make more power from the same amount of fuel.
@@engenhokas69
Hugo, I'm in agreement with you there. The issue was to correct an engine running issue by advancing the diesel pump by 1 tooth to correct this fault. If 100% of motor vehicles are produced at a basic tune and are running properly then adjusting the pump to correct any fault is incorrect and will just cause further issues. This person just needs (first of all) to go back to the basics and correct the initial fault. Only then can you start changing setting to improve power/efficiency etc.
Just my pov though. 👍
Is it safe to do it on turbo/intercooled engine as well? How is the fuel consumption now, any difference?
Is it me or , when people say advance the pump, actually mean the things happening first??
I work with motorcycles, and when we refer to advance camshaft or advance ignition timing, we mean that would happen before. And you exactly proved that, at the end.
Advance something in a engine mean you want to happen first or before it should do.
What's the purpose of advancing it by 1 tooth where there is the right timing indicated in manual
Sometimes you cant mechanically rotate the pump enough to match the right timing, so you use the tooth trick and then rotate to ajust timing. Every pump is calibrated differently. Stock engine is calibrated for low emissions, not efficient power production.
sir how about if camgear advance in one tooth? is it okey?
Sir safe kaya sa 4ja1 kung mag advance din? Ilang degrees o ilang tooth safe mag advance?
My crank shaft pulley doesn't have a mark dor TDC. How can I perform the test?
I have the same question I quest just to make your own but I’m not sure is there tdc for each cylinder or for the whole engine?
hello sir, may shop po ba kayo? if so, where is it located? thanks and more power 🙂
does it affect the performance?
Obviously.
Yes, stock engine is calibrated for emissions, this is for power efficiency. Get more power from the same fuel.
Sir safe po ba Nyan na nka advance po .. Kasi sakin hard start kahit mainint na makina Wala bang magiging issue sa engine .. pasagot po salamat po good blessed po
Check m boss magnetic sshut off valve ng injection pump
Will having an injection pump too advanced also cause black smoke?
Usually retarded timing causes black smoke.
Yes, because diesel is injected until too late and doesn't burn, only gets hot and black like burnt food, that's the smoke. Heated up diesel until it turns into coal
Thanks 👍👍 for sharing God bless
Safe po ba sa 4d56 Nyan Wala bang magiging issue sa engine Wala bang masisia
Thanks
Great !
My listening skill is bad.,so would you conclude that advancing by one teeth is safe. thanks
It gives knoking noiseon the engine and cause of overheat, not in proper timing
Present Sir 🙋 Happy New Year
Happy new year too
Safe po ba ung ganyang naka advance pasagot na pp salamat
Thanks for sharing Sir God bless you always
😘😘
2L engine can advanced 1tooth
No, it is not safe. If you went to school for ICE. You should know that you are going to bend the con-rod and crankshaft by advancing the timing of the combustion. Also known as engine knocking. Either you advance or retard the timing you loss power.
I've heard of offsetting by one tooth before with 1990s Lucas EPIC instead of keep replacing a good belt just because it stretches at high rpm.
But can't see how that changes the timing (unless it's the mega-old open loop tech with mechanical IP) , The crank sensor and the ECU mapping does the timing, not the teeth. If timing went out of timing actuator control range then the PCM would light the EM light or go limp mode or stop immediately after starting.