airbox valve ?

Post by **Merlin** » Wed Oct 31, 2012 11:12 am

NafemanNathan wrote:I'd say if it's your daily, leave the resonator fitted.

Yeah same, I have a K&N in my 5th with the resonator.

Have a look and see if the resonator valve actually works. Pull back the drivers wheel arch cover and blip the throttle to 5K, the valve should open. This is a two person job. If the valve is siezed you might as well rip the whole system out.

Post by **NafemanNathan** » Wed Oct 31, 2012 11:18 am

Merlin wrote:This is a two person job.

Unless you're the Flash or Superman.

Post by **Merlin** » Wed Oct 31, 2012 11:24 am

Stretch Armstrong?

Post by **NafemanNathan** » Wed Oct 31, 2012 11:27 am

Merlin wrote:Stretch Armstrong?

He's only short... He wouldn't be able to reach.

Bio · Post by **Bio** » Wed Oct 31, 2012 2:54 pm

Cheers fellas.
I have the suspicion that it may not be working as on cold days I get a very strange intake like whine for a few seconds after a cold start like a "woooooooo" noise, which to me sounds like it could be a half open butterfly valve or something... Maybe even a vacuum leak.

Post by **Merlin** » Wed Oct 31, 2012 3:00 pm

I'm pretty sure that is just the power steering pump

Both 5th's I have owned have done that.

Post by **vanzep** » Wed Oct 31, 2012 4:45 pm

most 4th gen resonator valves will be rusted up imo
not sure if that applies to 5th gens

mine was when i removed it
i run standard airbox with pipercross flat panel filter and its my daily drive

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Wed Oct 31, 2012 6:50 pm

Both my 4ths resonator valves work absolutely fine. You can operate them by hand without needing to rev the engine up (to check they're not seized I mean).

UK car runs K&N panel filter with resonator still fitted.
JDM has an A'PEXI cone filter but still has the resonator box fitted, just 'cause I haven't taken it off yet (obviously does nothing now)...