Thanks for this, very very very informative explanation. The swirl control arm has broken off on my D5 2.4 2009 Volvo XC90... couldn't fathom what it actually did. Found the name in the Haynes manual and then your brilliant video explained what it does! So now I know and know why it's also covered in oil!!! The boost is leaking!!! Got a bog job ahead of me now but at least I know it needs to be done! Cheers bud! Sammi x
Thank u for making this video. Great explanation.. A small query. What is the point in adjusting the air flow direction using swirl flaps.. How the combustion could be better while adjusting the air flow direction.
Bout yee,deleted them on my e39 530d when I owned it about 15 years ago and have done the same on my 3.0 tdi a4 I drive now,too many horror stories online about them
Hi there, nice demonstration, it's clear how they work. But...no explanation why are they foe and what is advantage without them ? If the car maker install them, then why ?
Fantastic explanation. One question if these control air into the engine where does the soot come from that I have seen on them. I like your video's alot.
Hi Dave, came looking at your RUclips uploads for info on VW/AUDI 1.6 TDI CAYC air intake manifold swirl flap motor. Having watched your vid on 1.6 tdi EGR cooler valve how it works. I am assuming swirl flap motor also uses 5.0+ & 5.0- to actuate the swirl flap shaft. Please can you provide 5.0+ & 5.0- pin numbers. As l cannot find a wiring diagram for this motor.
Hi Colin, did you ever find out the pins? As I want to test my swirl flap motor as it hasn't ever moved from fully open and either it has been mapped out or is broken. It is supposed to do a full range movement every 6 cycles of the ignition.
Had one fall to bits on a alfa romeo mito. Sucked the flap in and distoyed the engine. When I showed the customer she just cried. We sold the car as a going concern rather than swap the engine
Hi , very good JOB! i have a question regarding flaps on Volvo D5 , mine when i push the rod ( i disconnect the commande side) with my finger , it seems that is very easy and without any resistance. Yours is the same? it could mean that the flaps inside do not move? how can check it without removing the intake manifold? best regards
And all this time, I thought they would variably block off one of the two intake ports behind one of the two intake valves, causing air to actually swirl *inside* the combustion chamber due to the imbalance of pressure and air volume between the two (asymmetrical) intake ports versus simply getting a bit turbulent as you purport. If your theory is to hold water, please explain how this butterfly valve creates turbulence when it is full closed or full open.
That was very interesting but I don't think you emphasised enough that it is exhaust gases that are destroying the swirl flaps and clogging up all the pipes and EGR valve on the way. But at least the repair is a job that an average DIY person can do: no heavy lifting, no special tools, no getting underneath the car. I hate the fact that the designers have to do all this to meet emissions in a lab test but once it has done a few thousand miles all the good intentions have gone out of the window leaving the owner with big repair bills.
Started changing my swirl flaps and one of them is missing, the one opposite the linkage end. Do they get sucked in the engine if they fall in the port. Tried vacuuming out but nothing is coming out of the hole. Waiting for a camera to arrive
I noticed that when I fitted new swirl flaps to my Volvo D5 the actuator seemed quite stiff to turn. I am hoping that is OK and the actuator motor won't burn out. I did squirt oil on the bits that moved before final assembly.
The actuator must be adapted by VIDA-it is free.Go to diagnostic/vehicle communication/double click on ECM/advance/expand ECM/choose swirl actuator adaptation
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Great explanation... Many thanks for sharing. Picking my first D5 car tomorrow and need to know as much about things like this ;)
Thanks for this, very very very informative explanation. The swirl control arm has broken off on my D5 2.4 2009 Volvo XC90... couldn't fathom what it actually did. Found the name in the Haynes manual and then your brilliant video explained what it does!
So now I know and know why it's also covered in oil!!! The boost is leaking!!! Got a bog job ahead of me now but at least I know it needs to be done!
Cheers bud!
Sammi x
Very very interesting Dave, learnt something there, cheers.
Very illustrative representation. Thanks 👍👍
Nice follow up video Dave , shows Joe P how they work , well done ,
Aye a Joe P vid for sure, Mike altho I bet a lot of guys don't know
@@davesterl probably just know as you said they can smash the engine to bits , bring management light on and that's it 😂😂😉👍
Thank u for making this video. Great explanation..
A small query. What is the point in adjusting the air flow direction using swirl flaps..
How the combustion could be better while adjusting the air flow direction.
Bout yee,deleted them on my e39 530d when I owned it about 15 years ago and have done the same on my 3.0 tdi a4 I drive now,too many horror stories online about them
very well explained, and demonstrated, cheers dave , 👍
Dave are you familiar with ducato 2.8 jtd
Hi there, nice demonstration, it's clear how they work. But...no explanation why are they foe and what is advantage without them ? If the car maker install them, then why ?
Fantastic explanation. One question if these control air into the engine where does the soot come from that I have seen on them. I like your video's alot.
2:50 - when you started pumping I expected a knife man to burst in around the shower curtain.
Must be getting a bit tight in the garage with all those cameramen about 😀 Good description of operation.👍
aye ian, i hope they're not looking paid
What's the cost of replacing these at a garage? I have a V70 2.4d and they need replacing...
Many thanks 👍👍
Thanks buddy, great info!
So when you lock these fully opened does it improve anything? Probably not by your explanation.
Hi Dave, came looking at your RUclips uploads for info on VW/AUDI 1.6 TDI CAYC air intake manifold swirl flap motor.
Having watched your vid on 1.6 tdi EGR cooler valve how it works. I am assuming swirl flap motor also uses 5.0+ & 5.0- to actuate the swirl flap shaft.
Please can you provide 5.0+ & 5.0- pin numbers. As l cannot find a wiring diagram for this motor.
Hi Colin, did you ever find out the pins? As I want to test my swirl flap motor as it hasn't ever moved from fully open and either it has been mapped out or is broken. It is supposed to do a full range movement every 6 cycles of the ignition.
Had one fall to bits on a alfa romeo mito. Sucked the flap in and distoyed the engine. When I showed the customer she just cried. We sold the car as a going concern rather than swap the engine
aye for sure, hard to explain to the punter there are moving parts in the inlet and it has wrecked itself
Hi , very good JOB!
i have a question regarding flaps on Volvo D5 , mine when i push the rod ( i disconnect the commande side) with my finger , it seems that is very easy and without any resistance. Yours is the same? it could mean that the flaps inside do not move? how can check it without removing the intake manifold?
best regards
And all this time, I thought they would variably block off one of the two intake ports behind one of the two intake valves, causing air to actually swirl *inside* the combustion chamber due to the imbalance of pressure and air volume between the two (asymmetrical) intake ports versus simply getting a bit turbulent as you purport.
If your theory is to hold water, please explain how this butterfly valve creates turbulence when it is full closed or full open.
That's great info, you should do a video on it
a very good explanation dave
cheers Simon
Split Screen video!!!! Your getting fancy Dave
oh aye man, no mucking about here
Thanks for the info
But do they help much?
Thanks Dave
Thanks Dave, may I never buy a car with flaps.
For swirl flaps electrically actuatted, the default position is open?
Thanks answered a question I had
Thanks
That was very interesting but I don't think you emphasised enough that it is exhaust gases that are destroying the swirl flaps and clogging up all the pipes and EGR valve on the way. But at least the repair is a job that an average DIY person can do: no heavy lifting, no special tools, no getting underneath the car. I hate the fact that the designers have to do all this to meet emissions in a lab test but once it has done a few thousand miles all the good intentions have gone out of the window leaving the owner with big repair bills.
I didn't emphasise EGR because this video isn't about EGR
Whole video is yapping 4:49 for ACTUAL explanation
Oh dear, how sad
Started changing my swirl flaps and one of them is missing, the one opposite the linkage end. Do they get sucked in the engine if they fall in the port. Tried vacuuming out but nothing is coming out of the hole. Waiting for a camera to arrive
Good
Can we just delete this or leave it permanently open...
Like egr delete and dpf delete?
You can
Can you explain how you switch and program them?
Yes, but not on here
@@davesterl where then?
Can bē that new swirl flaps can be harder to turn?
I noticed that when I fitted new swirl flaps to my Volvo D5 the actuator seemed quite stiff to turn. I am hoping that is OK and the actuator motor won't burn out. I did squirt oil on the bits that moved before final assembly.
The actuator must be adapted by VIDA-it is free.Go to diagnostic/vehicle communication/double click on ECM/advance/expand ECM/choose swirl actuator adaptation