2006 BMW 550i CAM Shaft DTC
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- čas přidán 12. 09. 2024
- Diagnosing a BMW 550i Cam Shaft DTC. The ATS eSCOPE ELITE and the eSCAN ELITE are used. There is a great scope tip in this video to help find loose timing chains.
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Bernie I’m always waiting for your videos please keep up the good work ? I’m gratitude for what you’re doing for the community. I’m leaning a lot from you . I even bought your scan tool . Thanks mr Thompson
I notice since a few moths ago bernie thompson look like he is sick , very low energy and talk slowly , I pray for him he is an excellent teacher and person
I noticed the same
Hope that he is doing good but it's nice of him to keep showcasing the use of the proper tools.
Looks to me like he may have had a stroke
🙏 poor guy gets more gravy work. Most of us mortals would have died on most of his jobs
I noticed that too, worried about the health.
hello and thanks for the video, learned a lot, as usual. i actually think that exhaust cam on right bank has jumped aswell, because you can see that it's duration ends way before 180 mark and the pressure starts to rise. i mean 360, my bad.
I just found this channel and I can say I it's the most interesting auto diagnostic channel I have seen so far. Keep them coming.
Pressure transducers FTW!
This lesson is deep and beautiful. Thank you Bernie!!!
Thank you so much Bernie. Love all of your videos - really clear and instructive diagnostics to a truly amazing professional level. I have learnt so much from you - which is so helpful and really encouraging. Thank you once again.
I'm the owner of this car. I took it to another shop where they figured it out. The cam was advanced and the vanos solenoid was malfunctioning. They manually reset the cam and got the vanos working correctly. The car drives like a champ now.
So Bernie failed to fix your vehicle ? 🤔
Mr Thomson you are the GRAND Master we are humble.
Man Mr Bernie is awesome.
Great video , love the tooling from ATS . Need to upgrade my software again I see . Thanks for sharing Bernie .
Bernie I’m glad that you look like you’re feeling better. Id like to know if you or your team will hold a training in person. That would be something that I’d like to join. Take care!
Between the computer and the cost to replace the chains , guides , plugged screens and diagnosis , wouldn't it have cost LESS just to change the oil ? Even using synthetic oil on a conservative schedule ? I don't know if those chains can be done without engine removal ! They are in this for several grand . You can get a lot of oil changed for that ! Great diagnosis and lesson .
Exceptional teacher and diagnostician.
i would pay good money to learn from you in person, bernie. thanks for the video
Thank you for another valuable lesson Mr.Thompson!
Boy Bernie i have learned a lot from your videos thanks for sharing.
Very thorough. Thanks Bernie!
Every day is a school day 🤔. Brilliant the way you can think out side the normal realm of thought Bernie. Thanks for the education 🙏👍
Hey Bernie, Love your videos and the tools you have designed and built for diag. I read a comment from the vehicle owner about a vanos solenoid issue. Were there secondary issues affecting the cam timing after the mechanical issues were resolved?
Great job
God bless you sir.
Great lesson thanks Bernie!!
Hope he not sick this man knowledge watch all his video's
I think you could use jumper wire to move cam phaser solenoid, at least key on engine off. Ivan from Pine hollow diagnostics showed that few times.
But he said the reason not to do that, and to use duty cycle, there is a chance to overcook the solenoid. With a jumper wire, you don't now the control time.
@@Lambros_Stefaneas I know, just said that Ivan showed us that few times
As always great video
Too much info on that oscilloscope, pretty cool how that oscilloscope works. I gotta start saving my pennies. Thanks Bernie
Why is the red trace the only one varying? That tells me the sprocket or individual cam is to blame.
That was my thinking as well. I think this particular video confused me more than helped. 🤔
@@CubasAutomotive If the intake cam sprocket (or phaser) is sloping around, that would cause the cam to vary in relationship. Everything else would, and seemed to, remain stable. I just didn't get if this was a constant, or a variable.
EDIT: I don't know the engine, but a question that changes the equation.... How many chains?
@@HouseCallAutoRepair there are 3 chains... 1 per cam bank to crank, 2 phasers per bank... then a 3rd chain which is from crank to oil pump. 6 guides total.. Not the clearest images on service info. Hope I explained well.
So, my thought is 2 signals would be off, not 1.🤔 All 4 phasers vary... and the thing is Bernie stated it was definitely a chain jump issue, not a phaser issue.. Maybe I'm just tired myself and just not grasping it correctly.
@@CubasAutomotive a chain jump would change the cam timing, and the loose chain would cause the variance between pulses, BUT everything on the loose chain would be equally whacky, not just the one cam.... right?
Maybe I'm forgetting that the MAIN chain is ok, but one of the small chains is the sloppy one...
He explains that starting at 7:00. There ARE multiple traces out of time.
thanks for video
8:25 you set up 300 psi at piston
30 in hg intake
how much you set up at scope channel for pressure transducer at tailpipe ?
Can phaser activation cause valve to piston contact?
It is a risky move but only the master can do it.
i wouldn't want to advance a cam that is 50 deg advanced already, like in this video. if the timing is correct it is fine to move all of them however you want, nothing will contact.
@@scientist100 only the master, has the ⚽️⚽️⚽️⚽️ to do that kind of scary things.....
When you state what your known good angles of exhaust valve opening before BDC and intake valve opening before TDC are, this is assuming the engine is in its default phasor position, right? Since you have the pressure transducer plugged in, the car sees that there is a dead misfire and probably sets the VVT to a default state, but could it be possible that VVT could mess up the results you observe on the pressure transducer?
That's a great question.
I too have found a phasor in it's default position as the cause of a poorly running engine (2000 Maxima w/aftermarket cam sensors installed by a DIYer)...
...so to your point, if the phasors were at default position, the valve would open at a different time.
The question is whether phasors default to advanced or retarded timing. My recollection is that they default retarded (which should have the valve opening later (shifted to the right).
Hopefully someone who knows can help us out.
Once again, another MasterClass!!!
👍👍👍👍👍👍👍👍👍
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@@EKHondaMotive I believe that the default standard for base timing for intake is fully retarded, and for exhaust is fully advanced. Once load and rpm pick up, exhaust is advanced less and intake is retarded less, so the timing starts to overlap (acting like an EGR valve).
👍
Thanks! Bernie
Thanks a lot
I knew it needed chains before I hit play.
Ye you could hear it!
Bernie for President!
He is president.
Did the pistons hit the valves when that phaser got energized? I would never dare to do such a test.
👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏👏
-100
Tradudion português ?
BMW. BIG MONEY WAISTED
Great content.
Many thanks 👍