R75 CDT Engine Top Cooling Hose

[Kennyeth]

On the hose that takes the thermostat mod...the plastic end that goes to the engine.
I`m curious as to how it is kept water and pressure tight? because all I can see that looks like securing it is a wire spring type clip.
I have not really looked to what holds the plastic.
I know that doing the mod we just cut the band and pull the hose off and no need to disturb the plastic.
Ken.

[suffolk boy]

Originally Posted by Kennyeth

On the hose that takes the thermostat mod...the plastic end that goes to the engine.
I`m curious as to how it is kept water and pressure tight? because all I can see that looks like securing it is a wire spring type clip.
I have not really looked to what holds the plastic.
I know that doing the mod we just cut the band and pull the hose off and no need to disturb the plastic.
Ken.

those clips clamp on really tight thats how

[T-Cut]

The same system is used on the 1.8 engines, the Turbo certainly. I decided to service this connection recently and found it quite easy to separate. The clip that holds the union together doesn't put that much compression on the joint. Once the clip's out, the hose half should virtually drop out. The clip simply stops it from separating. The seal itself is formed by an o-ring located in a groove on the plastic half. The mating faces form a cone shaped join and the o-ring sits between them. I cleaned up the cone faces and applied some silicone grease to the o-ring. All refitted with no leakage.

TC

[Kennyeth]

Originally Posted by T-Cut

The same system is used on the 1.8 engines, the Turbo certainly. I decided to service this connection recently and found it quite easy to separate. The clip that holds the union together doesn't put that much compression on the joint. Once the clip's out, the hose half should virtually drop out. The clip simply stops it from separating. The seal itself is formed by an o-ring located in a groove on the plastic half. The mating faces form a cone shaped join and the o-ring sits between them. I cleaned up the cone faces and applied some silicone grease to the o-ring. All refitted with no leakage.

TC

Thanks for the explanation, nice and clear.
I bought a new hose from Rimmers to prepare it with the stat mod. It did not have the O Ring and must be a seperate part, that`s why I could not workout how it kept watertight, I see now,
Thanks.
Ken.

[T-Cut]

The joint may be different, I don't know. The diesel head outlet elbow is also plastic as seen here.



You can see the cone section where (I assume) the o-ring sits. The corresponding part on the 1.8T engine is alloy.

This is the 1.8T/PRT top hose



The O-ring sits in a groove within the plastic connector unit.
I haven't yet found the corresponding diesel part.

EDIT: Just found the details. The diesel doesn't use an o-ring seal. It's simply has a standard compression band around the hose (Jubilee style). I misunderstood the 'clip/clamp' as being like the 1.8T pull-out wire retainer. Sorry for any confusion caused.

Originally Posted by Kennyeth

I`m curious as to how it is kept water and pressure tight? because all I can see that looks like securing it is a wire spring type clip.

??

TC

[Kennyeth]

Originally Posted by T-Cut

The joint may be different, I don't know. The diesel head outlet elbow is also plastic as seen here.



You can see the cone section where (I assume) the o-ring sits. The corresponding part on the 1.8T engine is alloy.

This is the 1.8T/PRT top hose



The O-ring sits in a groove within the plastic connector unit.
I haven't yet found the corresponding diesel part.

EDIT: Just found the details. The diesel doesn't use an o-ring seal. It's simply has a standard compression band around the hose (Jubilee style). I misunderstood the 'clip/clamp' as being like the 1.8T pull-out wire retainer. Sorry for any confusion caused.



??

TC

Here is the new one from Rimmers. Thanks for info and it does not take much to confuse me . Anyway I won`t need to be concerned with the plastic part as this one will get discarded and will be using the end thats in situ on the engine.
Ken.
Ken.

[Mike Noc]

Originally Posted by Kennyeth

Anyway I won`t need to be concerned with the plastic part as this one will get discarded and will be using the end thats in situ on the engine.

Ken.

If you don't fit it Ken keep it somewhere safe. They have been known to leak due to the seals perishing.