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

[GazYorkshire]

Originally Posted by ProfDave

looks and sounds like my first 75 but I doubt its all the way up there!!

You never know - I bought it from a dealer in Derby, previous keeper was in Great Yarmouth - she's been around a bit!

[Germanlemon]

Just done my spy hole. I used a 20mm drill since I have a box of same size electricans closed backbox grommets. The spring fits the hole OK, it went straight through to the ground. Unfortunately I snapped the scuttle tray at a weak spot, it's not serious but I'd like to glue it back together, any idea what glue is best?

Assuming the inventor of the spy hole method approves of the size I'd be happy to supply members with a 20mm grommet simply by sending me a stamped addressed envelope. I don't know how easy they are to come by singley.

[richardvilla]

Those wires showing, i wonder what they are? if anything to do with heater or wipers maybe thats my problem with them not working immediately?

[galaxyclass]

Originally Posted by Germanlemon

Just done my spy hole. I used a 20mm drill since I have a box of same size electricans closed backbox grommets. The spring fits the hole OK, it went straight through to the ground. Unfortunately I snapped the scuttle tray at a weak spot, it's not serious but I'd like to glue it back together, any idea what glue is best?

Assuming the inventor of the spy hole method approves of the size I'd be happy to supply members with a 20mm grommet simply by sending me a stamped addressed envelope. I don't know how easy they are to come by singley.

Exactly what i did, 20mm grommet.

[Seafrost]

Thanks to all involved for keeping us informed of the plenum issues, especially this useful thread. Today, went out took daughter to school then off to take mumsy to post office, parked at mumsies and car would not start , turn ignition it all lights up and nothing, not a glimmer, nothing, zip squat, lots of swear words later and checks under bonnet scratching of head and I remembered what all you said about plenums.

Was not sure it would be that, as I have done them ( admitted not lately ), and there were no leaves at that time ( i dont live or park near trees ) , just water that does not come out without a prod... the lip on the rubber drain hole doesnt help, but anyways pulled it all out as described in this thread , and hey ho, all that rain last night, and I had a duck lake.

Quick prod with my flexible cane strip and water wooshed away. Got into car, turned ignition and she fired up. Quickly drove Mumsy to the post office and back home keeping car ticking over incase, then came straight back home and decided to check again for sure, plus I had a new pollen filter to fit but weather had been against me.

Decided to flush tube with hot water to remove any residue,(lifting ecu out of the way of course) looked clear but nothing to lose with a good hot soak... all clear, dried it all out, removed dirty wet stinky pollen filter and put a nice clear white one in, all back together and firing first time everytime.

SO, the moral is, when the nice guys on here suggest we "check your plenums Weekly" it is probably a Good Idea , as I shout that loudly to myself !!

Cheers all. signed relieved.

[Imm75]

Hi,
I get the 97mm measurement from the datum (plastic raised part), but what is the 180mm measurement for, are there two holes to be drilled. Also what is the vertical distance from the plastic rib?
Thanks
IM

[Arctic]

[QUOTE=Arctic;1109951]

Originally Posted by Arctic

Plenums we hear so much about them and the reason why is very clear below in the photo's that follow.

And even more important this time of year with the Autum leaf fall etc.


Yesterday a member of the club Mike came to have his handbrake mod fitted, as i always do i checked the plenum's after asking if he had checked them it turned out he had only brought the car Sunday so the car was very new to him, he had looked at the plenums from the drivers side and could see some water and he also heard the sloshing sound when driving.

The results can be seen below so come on gents lets keep on top of these plenums do the spyhole mod and its only takes 2 minutes to check for water once applied.

Pic 1 water at least 3" deep
1

Below is how to do the spyhole mod you will need a rule pencil 25mm drill bit and a 25mm rubber bung Fig 1
1

With the scuttle shield panel removed measure 97mm and 180mm from the points in the photo below Fig 2/3
2

3

Here you can see my template which i use at meets so i can easly turn over a good volume of trays in a few minutes Fig 4
4

With the panel marked out and your drill ready with its 25mm bit we/you can now drill the spyhole Fig 5
5

When you drill the scuttle tray makes sure you have support under the tray at all times Fig 6
6

7

8

9

10

Once drilled trim the hole to make it neat for the rubber bung to fit nice Fig 11
11

Spyhole mod done and ready for use Fig 12/
12

This shows the plumbers spring pipe bender Fig 13/14
13

14

If you intend to use the plumbers spring look for a 10mm or 15mm a boot lace and a tube mine was from an old wendy house but any 15mm tube will do 12" to 15" long Fig 15
15

Also grind or file the end of the spring to remove the curl so it is smooth and will easly go into the tube Fig 16
16

Spring being used in situ Fig 17
17

Hope this helps the new members and remenber check the plenums regular Arctic.

Originally Posted by Imm75

Hi,
I get the 97mm measurement from the datum (plastic raised part), but what is the 180mm measurement for, are there two holes to be drilled. Also what is the vertical distance from the plastic rib?
Thanks
IM

Hi Imran
the 180mm is to give a more acurate measurement from the edge also you have to points to focus on then just me being over the top really the vertical measurement is here in the pics below 23mm and in old money 7/8" hope that helps you cheers Arctic

[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

[Imm75]

Artic,

Fabulous, all clear now, I will hopefully be doing this on the weekend.

Many thanks,
IM

[dotsie]

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