I need to replace the hose again. A little over a year ago I replaced the original with a OEM hose from a Jag dealer. After a couple of months it started leaking slightly at the expansion tank.
I replaced the clamp but that didn't help, so I cut it back and used a barbed brass and piece of heater hose. It no longer leaked at the tank, but the OEM hose weeped at the barbed fitting.
I cut it below the elbow and tried again, this time using RTV and two clamps, but it still weeps. I'm thinking the hose is faulty and the coolant is traveling along the reinforcing fibers.
Has anyone used a Eurospare hose successfully? I don't generally trust Eurospare or uro, but after having a OEM hose fail I might be willing to try. Too bad it's such a nuisance to replace these things.

 

Nothing wrong with europart hose that I've used. Are you sure it's leaking from where it appears. Water can travel quite a distance.
Wrap a tissue around the pipe or tape tissue above where you think it's leaking.

 

Yes, I have done the isolation process.

 

Really sorry to hear that. Replacing the octopus hose once would be bad enough. Having to replace it twice is absolute misfortune....

 

I am getting ready to replace mine and have purchased the Eurospare hose. For what its worth the hose is made in the UK and appears to be high quality. One question, this is my first time was there any reason you needed to work on replacing the hose from the bottom. I assume all access will be from the top with the removal of the TB, air intake and coolant tank.

 

Do it from the top, otherwise you have to remove the exhaust, with studs snapping and having to be drilled out etc.,and then untangle the wires around the oxygen sensors, etc., just don't try from the bottom. Dismantle throttle body and remove header tank to give as much access as you can, then start at the bottom and work your way up. Don't be frightened to cut the old hoses off, and remember to push the hoses off connectors, don't pull them, otherwise the hose bites on the connector.
Good luck.. and take your time. Invest in a clip removal tool.

 

I strongly recommend the removal of the intake manifold and replacement of the two heater hoses. It is not unusual for one of them to fail, and you will have most of the work to access them done when replacing the octopus.

 

I was able to replace the octopus hose without removing the throttle body. The valley hoses are less than two years old so I didn't bother with them. I bought the Eurospare replacement.

 

Well done....

How did you manage to do so without removing the throttle body?

 

And did you install the Norma connectors that come as part of the octopus hose, or did you cut them off and go with brass hose barb fittings instead?

 

I used the new hose as received. The norma seals should outlast me, I'm 80.The old hose was only leaking from the branch that connects to the pressure tank, but I had to cut the norma fittings to remove it. The heater pump connections were difficult but the flex shaft pliers helped. It's also easier if you remove the tee that connects to the throttle body and plug it into the new hose on the bench before installation.