This helped me a lot. I poured oil into a translucent bag and primed the lifters inside the bag. It worked ok. This video was the inspiration to that thought.
Very good video, congratulations. To mount it on the cylinder head, do you leave it completely full of oil (maximum length) or do you leave it empty so that the adjustments are made automatically when you turn on the car?
I found this video because all my lifters are hard and I didn't understand how they work. I thought they're only supposed to expand and lift when they receive oil pressure. I still don't understand. How is that valve which you press with the drill bit actuated inside the engine?
@@charvakkarpe oil enters through the same small hole and is allowed to enter the chamber to fill the space. Now the lifter is stiff/solid. If the oil can leak out, the lifter becomes filled with air and becomes squishy/soft/spongy.
I looked up another video that showed the internals and theory of operation. The name gives it away, they're lash adjusters, not really valve lifters. It's not like when there's higher oil pressure at higher rpm, they lift and increase valve duration. All they do is expand to take up slack as cam lobes wear down or due to temperature variation. They're supposed to leak out very slowly. The valve which you depress to release the oil is a one way check valve with a ball and spring that's supposed to only be one way. The oil then leaks out slowly through the internal gaps. Now I understand why some valve trains make a little clatter after having sat for weeks, and why that's okay.
I tired to press them while they are still on a car they are stiff, also when I start the car I can see that rocker arms are not moving. If you put them back on a car should you be able to press them ?
@@amirceljo3967 short answer, no. If the engine has been running recently with good oil pressure then the lifters should be very stiff. You should not be able to compress them without releasing the internal valve with a pin. Perhaps you have a camshaft issue (lobes worn or loose)?
@PetesWorkshop Idk honestly Im trying to figure out weird knocking inside the cabin coming from engine. I can also hear thumping coming from the exahust. Car runs great, accelerates like dream but on idle when car is warmed up you can hear thumping and knocking periodicaly than stops than does it again. Its more of thumping-shakey feeling rather than metallic rattling sound. There is also video on my page. I checked everything, sensors all work great , fuel injectors etc. There is no check engine.
@ I think I found your vid. Opel Astra? Sounds like the coil pack may be ‘leaking’ spark as it’s also miss firing. Take out the coil pack module and look for arc traces.
@@PetesWorkshop I replaced them but it was not coil pack. I checked other stuff it turned out that 99% is Flywheel problem I posted new video when it drops on idle it starts to tremble and shake and when I listen closely its coming from under the engine/transmission. I just hope to find that its not cylinder head related issue.
This helped me a lot. I poured oil into a translucent bag and primed the lifters inside the bag. It worked ok. This video was the inspiration to that thought.
Great video this info is hard to find. As you say there is also a lot of misinformation
Very good video, congratulations.
To mount it on the cylinder head, do you leave it completely full of oil (maximum length) or do you leave it empty so that the adjustments are made automatically when you turn on the car?
Why do so many engines with hydraulic lifter have ticking noise and not reliable ones?
I found this video because all my lifters are hard and I didn't understand how they work. I thought they're only supposed to expand and lift when they receive oil pressure. I still don't understand. How is that valve which you press with the drill bit actuated inside the engine?
@@charvakkarpe oil enters through the same small hole and is allowed to enter the chamber to fill the space. Now the lifter is stiff/solid. If the oil can leak out, the lifter becomes filled with air and becomes squishy/soft/spongy.
I looked up another video that showed the internals and theory of operation. The name gives it away, they're lash adjusters, not really valve lifters. It's not like when there's higher oil pressure at higher rpm, they lift and increase valve duration. All they do is expand to take up slack as cam lobes wear down or due to temperature variation. They're supposed to leak out very slowly. The valve which you depress to release the oil is a one way check valve with a ball and spring that's supposed to only be one way. The oil then leaks out slowly through the internal gaps.
Now I understand why some valve trains make a little clatter after having sat for weeks, and why that's okay.
@@charvakkarpe SPOT ON! 100% correct. Thanks for sharing.
Great video! 👍
@@dm6877 thank you.
I tired to press them while they are still on a car they are stiff, also when I start the car I can see that rocker arms are not moving.
If you put them back on a car should you be able to press them ?
@@amirceljo3967 short answer, no. If the engine has been running recently with good oil pressure then the lifters should be very stiff. You should not be able to compress them without releasing the internal valve with a pin.
Perhaps you have a camshaft issue (lobes worn or loose)?
@PetesWorkshop Idk honestly Im trying to figure out weird knocking inside the cabin coming from engine. I can also hear thumping coming from the exahust.
Car runs great, accelerates like dream but on idle when car is warmed up you can hear thumping and knocking periodicaly than stops than does it again. Its more of thumping-shakey feeling rather than metallic rattling sound. There is also video on my page.
I checked everything, sensors all work great , fuel injectors etc. There is no check engine.
@ I think I found your vid. Opel Astra? Sounds like the coil pack may be ‘leaking’ spark as it’s also miss firing. Take out the coil pack module and look for arc traces.
@@PetesWorkshop I replaced them but it was not coil pack. I checked other stuff it turned out that 99% is Flywheel problem I posted new video when it drops on idle it starts to tremble and shake and when I listen closely its coming from under the engine/transmission.
I just hope to find that its not cylinder head related issue.
Did you find doing this with both the squishy ones and solid ones fixed both and are all good ones now?
@@dustyfruitypie1633 Yes. In fact I did not find any of mine that were bad. Engine is back together and running perfectly.
@@PetesWorkshop Thank you for your reply. I have some squisy and some hard so will clean them all first before buying a new set
Thanks 💪👌
A+ Demo
Good job