The heater hose to the throttle body has a strange crimp type hose clamp on it.

What's the name of this type of clamp? Can it be removed non-destructively?
How is it removed?
Can it be replaced by a regular spring type clamp or worm geared type?

Thanks!

 

Wow, that is one interesting clamp you have there. I have seen something similar when I had my 1989 911SC, it was kind of like a blend between a catch spring and an ear clamp, One end was bent up while the other end was hooked to catch, it had 2 ears to pinch so it could be placed on a hose while in place and then clipped together to secure. To remove, you could use a flat blade screwdriver or something similar to unhook. It was a single use clamp.

Yours looks a bit different and unfortunately I only have the 2014 SC in the garage right now so I can't even look what the NA has for a clamp.

Off the top of my head, I see the click fittings and the hose clamps by many names (Radiator hose clamp, hose clamp, continuous compression hose clamp, spring clamp) On the air intakes I see the worm gear clamps but not on the heater hoses. I would think you could place a different clamp on as long as it provides enough compression to hold the hose under load.

I also remember back in the 70s, Ford and GM use to have an attached clamp on their heater line, if you damaged this, you were replacing the hose as it had a floating rivet through to an inside collar which was to seal when tightened. I remember cursing both with the Trans Am and the Mustang.

 

The strange thing is I replaced all the hoses and pipes (the usual 5.0 XF coolant hose/pipe job) including this one a bit under three years ago, but I just don't remember how I got it off. I think the replacement hose comes with a new clamp anyway. The only reason I'm replacing it again, is that the hose got badly squashed by the intake manifold - I need to be a bit more careful this time around.

 

Fairly sure that is called a "crimp clamp" and there is a special tool for undoing it and for fixing it in place, see this page of images for example: https://duckduckgo.com/?q=crimp+clam...2F1_372_23.jpg
One of my favourite YouTube mechanics is Rainman Ray and I have seen him remove those clamps many times. I think he uses the tool sometimes but other times he just destroys the clamp and replaces it with a more normal hose clamp such as a worm gear type.

 

It's definitely a crimp clamp but I haven't seen one like it anywhere on the net.

 

It's one of a variety of 'constant tension' hose clamps manufactured by NORMA. If I recall correctly, this pattern is known as the Cobra Spring Hose Clip.They are used on rubber hose to plastic cooling system components because they apply consistent pressure around the circumference unlike worm drive types which point load, can easily be overtightened and break the outlet.

See my post #7 in this thread for an illustration of how to open and close them:

https://www.jaguarforums.com/forum/x...-pliers-77985/

You will see many posts advocating replacing these with worm drive. Although it is a solution, in engineering terms it is wrong.

Graham

 

Perfect GGG, thanks!