[OGM2LCI]

Has anyone got a drawing or any sizes for the N47 swirl flap blanking bung?

I have a mate that can turn one down for me so just need a drawing or some dimensions he can use?

Any help would be greatly appreciated!

[bishbosh]

If you can wait until this evening I have the actual plastic spindle holder sat on a shelf in my garage, I can measure it tonight and take pics.

[OGM2LCI]

Originally Posted by bishbosh

If you can wait until this evening I have the actual plastic spindle holder sat on a shelf in my garage, I can measure it tonight and take pics.

Yeah that would be ideal please mate, is the bung basically the same size as the holder? I've not taken it all apart so not sure how it fits together

[bishbosh]

I have fitted the bung that's available on eBay. My only criticism is that it is the same size(width) as the plastic spindle holder - however, IMO the plastic spindle has always felt quite 'loose' when fitted, consequently the bung does too, it seems to seal ok though.

The bung has o rings on it, so slightly fatter o rings might help to get a tighter fit. Once the bung/spindle is installed it cannot pop out as the electronic actuator sits behind it, that's why it's important to get the correct length. The length of the ebay bung is spot on!

[OGM2LCI]

Originally Posted by bishbosh

I have fitted the bung that's available on eBay. My only criticism is that it is the same size as the plastic spindle holder - however, IMO the plastic spindle has always felt quite 'loose' when fitted, consequently the bung does too, it seems to seal ok though.

The bung has o rings on it, so slightly fatter o rings might help to get a tighter fit. Once the bung/spindle is installed it cannot pop out as the electronic actuator sits behind it, that's why it's important to get the correct length. The length of the ebay bung is spot on!

Ah okay that makes sense, is the angle on the bung crucial as well or is it just the overall length?

[bishbosh]

Just length and width.

[OGM2LCI]

Originally Posted by bishbosh

Just length and width.

Okay thanks mate

[bhurd320]

also the bit on the end of the plastic ebay bung that locates in the hole the actuator rod went through seems important as it helps centre it all when installing, also on the intake manifold when removing the swirl flaps there are 2 fixed veins of plastic you need to snap off to get the flaps out, i was a little dubious as to snapping them in case they had some special task, but had no issues with them removed and been driving the car over 500 miles now, with swirl flaps deleted, all seems hunky dory

[OGM2LCI]

Good good thanks for the heads up mate, I'm going to go and buy a bung online tomorrow and get it done when I can

[bishbosh]

Sorry for not getting back to you, I'm not sure but it looks like the length of the plastic actuator spindle might be shorter than the 'ebay bung' I can't confirm this though without taking the actuator off again and I'm lacking the time at the moment to check.

bhurd320 Haha I can beat that. I've done around 30,000 miles since I removed the flaps on mine, no issues

[OGM2LCI]

Originally Posted by bishbosh

Sorry for not getting back to you, I'm not sure but it looks like the length of the plastic actuator spindle might be shorter than the 'ebay bung' I can't confirm this though without taking the actuator off again and I'm lacking the time at the moment to check.

bhurd320 Haha I can beat that. I've done around 30,000 miles since I removed the flaps on mine, no issues

That's no problem mate, I wouldn't expect you to whack the actuator off just to check that! Might get a DIY written up when I do it, there's a few for the old M47 engine but none for the N47, whether it'll be as useful as as the M47 write ups as the N47 ones don't seem to fail...

[bishbosh]

I had a writeup on the old BMWLand site but I lost it inc pictures when the site went down.

[bhurd320]

Originally Posted by James-B93

That's no problem mate, I wouldn't expect you to whack the actuator off just to check that! Might get a DIY written up when I do it, there's a few for the old M47 engine but none for the N47, whether it'll be as useful as as the M47 write ups as the N47 ones don't seem to fail...

they do fail just a little less likely to cause to much damage as the parts are plastic, the issue on higher mileage is the rod has a lot of movement at the end furthest from the actuator, when I removed mine car has done 60K miles it had a bit of play on the last flap, for me its peace of mind there gone and nothing can drop inside the engine when running as its all gone
there is another thread on here I started and someone on that mentioned he had a failure

[bhurd320]

found it http://www.e90post.com/forums/showthread.php?t=1231359