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Re: Exhaust Flow Control Valve (Twin Cam 2013)
Posted: Fri Jul 17, 2020 12:37 pm
by Beagle
Apparently some butterflies make a squeaking noise when starting to seize.
Re: Exhaust Flow Control Valve (Twin Cam 2013)
Posted: Fri Jul 17, 2020 9:52 pm
by David.
Without a physical check on the flap, the servo may appear (sound) to be cycling but the flap may not be moving from full open, to full closed and back to full open.
My flap has never been seized open but a check has identified that it wasn't going fully closed.
Re: Exhaust Flow Control Valve (Twin Cam 2013)
Posted: Fri Aug 07, 2020 11:42 am
by David.
Here's a new one, after switching on the ignition and the EFCV cycling from fully open to fully closed & back, I could hear the servo beeping.
Remember seeing this video,
https://www.youtube.com/watch?v=kECJwihAW6w slightly adjusted the cables to introduce a small amount of free play, sorted.