Exhaust flaps

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munsen99
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Exhaust flaps

Post by munsen99 » Sat Jul 04, 2015 8:30 pm

One of my exhaust flaps has seized in the closed position and one in the open position. If I try and brute force the closed one, do i apply pressure to top or bottom half of the flap?

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docurley
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Re: Exhaust flaps

Post by docurley » Sat Jul 04, 2015 8:47 pm

soak it first with a penetrating solution before trying to free it up.
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MikeFish
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Re: Exhaust flaps

Post by MikeFish » Sat Jul 04, 2015 11:02 pm

Can't remember which way it goes, but if you shine a torch up the one that works and get someone to press the sport button a few times while ticking over you will see which way they turn.

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munsen99
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Re: Exhaust flaps

Post by munsen99 » Sun Jul 05, 2015 8:07 am

Thanks Mike. The other one had seized open, so difficult to tell which way it goes.

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MikeFish
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Re: Exhaust flaps

Post by MikeFish » Sun Jul 05, 2015 9:11 am

As yes, sorry I misread that. Mine are disconnected and probably seized now so can't really help I'm afraid.

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orangepeel
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Re: Exhaust flaps

Post by orangepeel » Sun Jul 05, 2015 2:12 pm

Top pushes back if that helps

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Re: Exhaust flaps

Post by Grandadg90 » Sun Jul 05, 2015 2:13 pm

The flaps open sideways i think. I would disconnect the vacuum line, apply wd40. Give it 5 minutes and then apply some force.
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coldo
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Re: Exhaust flaps

Post by coldo » Sun Jul 05, 2015 6:10 pm

Soak it in some WD40, get a broom handle that covers half of the flap, then chap on the end of it gently with a hammer until you start to get some movement.
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munsen99
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Re: Exhaust flaps

Post by munsen99 » Tue Jul 07, 2015 8:32 am

Top tips. I will give it a try this weekend.

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Re: Exhaust flaps

Post by RSCosworth » Tue Aug 25, 2015 6:06 pm

Just followed this procedure on mine as the flaps were seized shut & it's worked a treat! I want to keep the flaps open now so in order to do that do I just disconnect the rubber vacuum pipes at the side of the exhaust & if so, do I need to put anything over the ends of the pipes/actuators once disconnected or just leave them hanging in mid air etc?? :?
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PetrolDave
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Re: Exhaust flaps

Post by PetrolDave » Tue Aug 25, 2015 6:34 pm

RSCosworth wrote:do I need to put anything over the ends of the pipes/actuators once disconnected or just leave them hanging in mid air etc?? :?
You must seal the vacuum pipes - otherwise none of the vacuum operated flaps on the engine will work properly and you'll probably lose about 60bhp (estimate from Doug at MRC).

Just find a correct sized bolt, and screw that into the end of the pipe.
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alefustec
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Re: Exhaust flaps

Post by alefustec » Tue Aug 25, 2015 7:56 pm

Golf tees are best, just push them in there hide pipes in rear diffuser and job done. Most satisfying 10 mins I have spent in a while
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Re: Exhaust flaps

Post by RSCosworth » Tue Aug 25, 2015 8:15 pm

PetrolDave wrote:
RSCosworth wrote:do I need to put anything over the ends of the pipes/actuators once disconnected or just leave them hanging in mid air etc?? :?
You must seal the vacuum pipes - otherwise none of the vacuum operated flaps on the engine will work properly and you'll probably lose about 60bhp (estimate from Doug at MRC).

Just find a correct sized bolt, and screw that into the end of the pipe.
Done! Cheers matey :thumbs:
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Re: Exhaust flaps

Post by Fatneck73 » Mon Nov 02, 2015 9:14 pm

Evening all

I have just viewed a car whose flaps didn't open - neither of them. The bolster worked perfectly and everything else about the car was great... And so my question: if I try the lube and yet can't get theses to manually free up and start working fine, what else could it be?

Cheers,

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