Hydroelastic suspension

[colonel mustard]

From memory…

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I ended washing out / shaking the displacer once full and emptying, did this for at least 1hr on each displacer until the water ran clear out of the units.

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I used a spare connector (one off the rear subframe) and adapted this to take the he hose pipe to aid cleaning. Once cleaned I tested each unit over night on the hose pipe.
Once tested I ended up putting some brake pipe down mine to straighten the run pipes and let it drain upside down into a container. Once drainer, cleaned, painted and red rubber greased the rubber parts.

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[Arctic Circle]

I am a bit unsure about using a curtain wire to clean the line. If it gets stuck inside the line during the process you get a serious problem.. I used vinegar and gravel in the petrol tank/s for cleaning and rust removal, was fitted in/on a cement mixer, the steel was like new after a few hours.

[Polarsilver]

Found that Grass Strimmer the "Nylon Strimmer Strand " stuff of the thicker type is ideal to clear through blocked tubing

[Peter Laidler]

all brilliant ideas for sure. Colonel Mustard has the idea though. Just look after what you've got. I think that you're being a tad OVER cautious Arctic Circle. If the twizzly curtain hanger wire gets stuck, you pull it out and it unwinds, getting narrower until it frees itself. As a result of this idea several years ago I use the same method to clean my kitchen sink, shower and bath plug holes. Great stuff for finding its own war around U bents etc etc

While I think about it, there was a suggestion to let the hydro units dry inside (don't ask me how as I don't remember) and then puur some of that latex rubber solution inside so that it collects and hopefully seals the bottom strut end. My son and his cyclists pals use it to seal their road and track/cross country bike tyres. I did try it with a dodgy unit and pumped it up with air to 70psi and left it dangling for many days and the pressure held up. But ain't used it on the car - yet!

[richardACS]

I am a bit unsure about using a curtain wire to clean the line. If it gets stuck inside the line during the process you get a serious problem.. I used vinegar and gravel in the petrol tank/s for cleaning and rust removal, was fitted in/on a cement mixer, the steel was like new after a few hours.

what a neat idea! (with regard to the fuel tank)

[mk1]

Can one fill the pipes with vinegar - let it stand overnight - to clean the inside of the pipes?
They are disconnected from the displacers at the moment.

I cannot see what functional benefit there could possibly be pouring a corrosive material into a steel pipe that is already showing signs of corrosion. All it can do is make it "look" cleaner while at the same time bringing the pipe that bit closer to failure. Replacing a blown hydro pipe is not a quick or easy job!

While the repro pipes do have some issues regarding shape, they are in most cases, probably a better bet than used pipes of unknown integrity.

For a "perfect" replacement set that could rot just like the originals, it would be possible to make your own using something like this.

https://www.ebay.co.uk/itm/373997622976 ... %3A2047675