Looks a really good idea (Spyhole) - Something for the future........ Thanks.

Having recently brought my Rover 75, and can I just say what a fantasic car they are, I thought I'd check the plenums after reading this forum. The top one was a little dirty but draining, however the bottom one was cloged up with all sorts and had a small amount of water there too. So thank you to this forum, as the advice taken, they are now clean and draining away.

check plenums more so with Autum leaves etc and the deluge of rain we are getting

Care when rodding
 

I have just examined my plenum and found the drain pipe had been pushed into the cavity between the chamber and the outside world. Although the cavity could be seen to be clean and dry I suspect that water could find its way into the car. I managed with some difficulty to get the pipe out and it was well blocked. I cleaned it out, chopped off about an inch, sprayed wax oil into the cavity and pushed the tube into its correct place. I shall have to seat the bottom flange when I can get under the car.
Question: Does the 15mm rod run the risk of dislodging this lower pipe?
Moral: Don't be too rough with the rod!

Another job on the list...
 

Looks like this is something I need to add to my list of "things to be done"... at least it's a fairly simple one.