406 2.1td loosing water

[habbers]

I hope you've got it cracked!
I've got to replace the bottom hose, it's pissing out a goodun'

Been out lunchtime - NO, not sorted.

Now got new o-ring, reused the old one, got PTFE (Plumbers tape) as a standby/secondary measure.
Leak nowhere near as bad as it was so i am heading in the right direction.

Will hopefully sort it tonight...

Bottom hose eh, the bottom hose on the 2.1 is just shy of £ 60.00 according to my local stealership!
It is a 'vision' in plastic and metal...and fecking expensive - it is a water hose on a car FFS!

Looks like a b1tch to fit as well for those without car ramps.

[habbers]

Right then, just cleaned up and it is still leaking, run out of light and energy and have an interesting and painful collection of cuts on both hands

Plan B
Blue hylomar to seal, it is the surface of the hose fitting that is corroded and uneven I think the socket has a little wear in it from the corrosion and i am sure that this is the problem and why it is leaking.

Have a look at

torn between the Hylomar Blue and the Hermetite instant gasket or a combo of them. Hermetite red is pretty much the same as Hylomar blue (from memory and bike enduro days)
Link to info on Halfrauds site to compare
http://www.halfords.com/webapp/wcs/stor ... ory_121715

Any thoughts???

[teamster1975]

Let me know if it works Habbers. I did manage to get the bottom hose out; it was rusted solid into the rad which I had to replace so I had to get a new conrad union and splice it to the bottom hose. And it was a pig to get out

[steve_earwig]

Any thoughts???

The Hylomar Universal Blue and the Hermetite instant gasket are both non-setting, I'm not sure you want that 'cos there'll be a fair bit of pressure.

How about Loctite Gasket Seal 5699 300ml? - "Recommended for sealing all types of flanges including stamped sheet metal where water glycol resistance is required." I.e. core plugs.

[habbers]

You have a good and valid point, i'll try the instant gasket one first and see how i get on.

[teamster1975]

I've bitten the bullet and ordered a new hose; my wife's off to her folks at the weekend cos I'm working and I don't want it overheating on her. £45!
What happenned to the good ol' days of a length of hose and jubilee clips? Rotten bastards.

[habbers]

UPDATE
Horrah!

Fixed.
I wish i had taken piccies but hidesight is a wonderful thing.

I had a concern that the flange on the rad which takes the hose had a crack in it, it has groove/split partly as you look down on it which looks like it should be there however it appeared to continue a bit and to where i think the o-ring seat and this is why it was leaking. I could be wrong but it felt that way as it is difficult to see without removing the rad which i did not want to do unless it was fecked.

In the end i got the Hermetite instant gasket + and this is the important bit for me flange - a stick of instant plastic repair, both bought from Halfrauds as it was close to home and when you have a seriously leaky rad it counts. The instant plastic stuff It is a bicolour stick around 4 inches long and 1/2 inch widethat you rub together in your hands to activate. You mould it into the desired shape and leave it for 20 m shape. It is chemical, water heat and cold resistant and this was what i used ins and it sets hard. I thought that this might just be the job to reinforce and seal the flange by rolling it into a long 'worm' and wrapping it around the flange and moulding it onto it, to seal it and strengthen it.

Prior to repairs i drained the colloiing system and thoroughly cleaned all the surfaces and roughted up the plastic flange exterior with emery to give a good key.

I have done some 30 miles of hard driving and stop start since fixing and not a single drip so far

conclusions are that the instant gasket will seal a rough and worn conrad joint (suggest you sttill use an o ring) if that all is wrong. the instant plastic seems to work a treat on damaged/broken plasitcs as long as they are no0t too far gone.

Will report back after a week/600 miles or so.

thanks for all your help,

Paul

[steve_earwig]

Splendid!

[habbers]

Well chaps, 2 weeks and some 300 miles later and no leaks

FIXED!

I can reccommend that route to anyone with similar problems

[teamster1975]

I fitted a new bottom hose today, so far so good!
Actually I got on a bit of a roll, changed the plugs and air filter too!
Whoever had the plugs out last must have used a 10ft breaker bar to tighten them up, I thought I was going to shear them all off undoing them!