Swirl arm/flaps

jodiexii · Feb 21st, 2017, 12:08

Are the flaps supposed to be closed when engine stopped?
(closed as in arm down towards engine)
Mine is away from engine with dreaded arm falling of syndrome

tt82 · Feb 21st, 2017, 12:30

From reading some stuff on VIDA yesterday, it says the flaps are open at low revs to maximise the swirl for better combustion, but they close at high revs for better power. IIRC, the sitting state when the engine is switched off is closed.

You should be able to check this. I'm pretty sure that when the car is started the motor immediately pulls the arm back away from the engine, but pushes it back towards the engine as the revs rise.

jodiexii · Feb 21st, 2017, 13:07

Quote:

Originally Posted by tt82

From reading some stuff on VIDA yesterday, it says the flaps are open at low revs to maximise the swirl for better combustion, but they close at high revs for better power. IIRC, the sitting state when the engine is switched off is closed.

You should be able to check this. I'm pretty sure that when the car is started the motor immediately pulls the arm back away from the engine, but pushes it back towards the engine as the revs rise.

Mine must have dodgy stepper motor, mine is rite back with engine off. Even car running arm is back.
Will get someone to rev engine while I watch arm

tt82 · Feb 21st, 2017, 13:19

I am working from memory about which way it operates, so I may be wrong.

jodiexii · Feb 21st, 2017, 23:23

Quote:

Originally Posted by tt82

I am working from memory about which way it operates, so I may be wrong.

My 2006 s60 used to be closed when engine off, think my stepper is stuck open.

Does vida/dice have option to operate stepper motor?

green van man · Feb 23rd, 2017, 20:26

My 175 bhp D4 does not have a swerl flap arm, I have spent a long time looking for it before I asked my dealer where it was, reply from a fitter in the workshop was that it was internal on my engine.

Paul.

jodiexii · Feb 24th, 2017, 09:39

Quote:

Originally Posted by green van man

My 175 bhp D4 does not have a swerl flap arm, I have spent a long time looking for it before I asked my dealer where it was, reply from a fitter in the workshop was that it was internal on my engine.

Paul.

Lucky you
No hanging arm surprises for you

jodiexii · Feb 26th, 2017, 17:40

Closer inspection shows arm is stuck back in open position.
Tried running engine and stopping 6 times and no movement so motor is foobar.

green van man · Mar 1st, 2017, 19:49

Quote:

Originally Posted by jodiexii

Lucky you
No hanging arm surprises for you

Or if it does break I won't know about it.

Paul.

Feb 21st, 2017, 12:08	#1
jodiexii Senior Member Last Online: Mar 26th, 2024 15:54 Join Date: Jun 2010 Location: durham	Swirl arm/flaps Are the flaps supposed to be closed when engine stopped? (closed as in arm down towards engine) Mine is away from engine with dreaded arm falling of syndrome

Feb 21st, 2017, 12:30	#2
tt82 Forum Support Team Last Online: Nov 28th, 2022 17:33 Join Date: Jan 2009 Location: Here.... obviously!	From reading some stuff on VIDA yesterday, it says the flaps are open at low revs to maximise the swirl for better combustion, but they close at high revs for better power. IIRC, the sitting state when the engine is switched off is closed. You should be able to check this. I'm pretty sure that when the car is started the motor immediately pulls the arm back away from the engine, but pushes it back towards the engine as the revs rise. __________________ The more people I meet, the more I like my dog! 2009 V70 D5 R-Design - Jeade'en

Feb 21st, 2017, 13:19	#4
tt82 Forum Support Team Last Online: Nov 28th, 2022 17:33 Join Date: Jan 2009 Location: Here.... obviously!	I am working from memory about which way it operates, so I may be wrong. __________________ The more people I meet, the more I like my dog! 2009 V70 D5 R-Design - Jeade'en

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Feb 23rd, 2017, 20:26	#6
green van man Premier Member Last Online: Apr 11th, 2024 09:21 Join Date: Nov 2012 Location: Ffos y Ffin	My 175 bhp D4 does not have a swerl flap arm, I have spent a long time looking for it before I asked my dealer where it was, reply from a fitter in the workshop was that it was internal on my engine. Paul.

Feb 26th, 2017, 17:40	#8
jodiexii Senior Member Last Online: Mar 26th, 2024 15:54 Join Date: Jun 2010 Location: durham	Closer inspection shows arm is stuck back in open position. Tried running engine and stopping 6 times and no movement so motor is foobar.

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