Plenum Check - The Reason Why **ALL OWNERS PLEASE NOTE**

[Arctic]

Originally Posted by grumpyshouse

Thanks for the explanation and for taking the time to photo and post. much appreciated!

I was wondering what all the fuss was about. I opened my bonnet looked in each rear corner, saw the clear plenums, checked them with a watering can. all OK.
DIDNT realise there was a THIRD one hidden away, and thats the grief ridden one!

So just been out to check mine and its all clear (should i be able to see the road through it? ) and as an added bonus pollen filter shows no signs of flood damage

thanks again

I Nev.
As long as the rubber bung is still inplace you are ok it may mean that some previous owner may have cut the end of the tube at 45% degrees which is better really as they tend not to get blocked so easy Arctic.

Originally Posted by dotsie

Did mine today and yes it was blocked.About 1" of water on the pollen filter. Thanks Artic for the info and photos.

Hi Dennis.
Great seems you have caught it just in time what with these wild winds and deludge of rain this is the main time they can get blocked with lots of leaves falling and blowing about, if you do the spyhole mod you can then check them once a week when checking your oil, water top up washer bottle etc as i do, hope all members remember that the plenums need checking on a regular basis this time of year Arctic

[Jules]

Another "stitch in time" there Steve and an impending ECU & carpets disaster avoided.
(Jules tip here on removing the Poppet oval clips. No need to dig them out with a screw driver, which can leave unsightly marks on the skuttle panel, instead simply put your fingers over the clips with one hand while giving the panel a sharp tug, The clips pop out of their own accord)


Advice to all:
Make sure the end of your tubes are circumcised!!
It does help stop them getting blocked as long as you stop the debris entering the plenum area in the first place
(either use DIY gauze or order my Plenum shield kit
So many Garages remove the lower plenum tubes ans it's a silly thing to do IMO.
Water then gets into the box section to cause further future problems.

Plus we bought the last few remaining tubes from Rimmers.
Maybe replace your missing tubes from salvage cars .

[pjk1967]

Hi all; went out in zt yesterday and missus was driving(thankfully) going down the motorway and passenger side footwell became so wet i could splash water with my shoe; looked up this thread and i have duly cleared the drains in the plenum chamber; the water was well up on the pollen filter so think i have caught it just before it was able to reach the ecu; followed the instructions as in this thread and all is now unblocked; cant believe just how much water was in there; hoping the carpet dries out and will defo be checking the drains more often now

[Greg]

The drain on the drivers side of my 75 is blocked off. Late 2004 model. Is this normal?

[macafee2]

there are others that can confirm for sure but i think thats correct as it is to high to do anything.
macafee2

[Arctic]

Originally Posted by Greg

The drain on the drivers side of my 75 is blocked off. Late 2004 model. Is this normal?

Hi Greg.
Yes that is normal for your year of car as this was one of Rovers preproject cut backs you could always pull out the bung and replace it with a tube and a Jules Plenum shield kit. Which i have done with mine and both work a treat Arctic

Originally Posted by pjk1967

Hi all; went out in zt yesterday and missus was driving(thankfully) going down the motorway and passenger side footwell became so wet i could splash water with my shoe; looked up this thread and i have duly cleared the drains in the plenum chamber; the water was well up on the pollen filter so think i have caught it just before it was able to reach the ecu; followed the instructions as in this thread and all is now unblocked; cant believe just how much water was in there; hoping the carpet dries out and will defo be checking the drains more often now

Hi Pat sounds like you caught it in time, i would now change the pollen filter do the spyhole mod and if you have a sunroof check the sunroof drain tubes, Arctic.
http://www.the75andztclub.co.uk/foru...of+drain+tubes

[Hogwarzt]

Hello Chaps,

I've always check mine by pouring water into them and if it pops out the other end, i didnt have to worry. Is that not a correct assumption? Got me thinking now.

Rich

[BigJohn]

Just followed Arctic's instructions and done the spy hole mod when I had the cover out to check the plenums. I was lucky with only a cup or so of water there. Just need to find the Jules guard I bought 2 1/2 years ago when they first came out and haven't got around to fitting !

[carpy]

looked at mine the other week had about 1 inch of water so came on here looked at ATRICS way of doing the mod and worked perfectly now it will be only a few mins to rod it if it gets blocked again

Cheers

[Jezech]

What a brilliant and useful post. Thanks:-)