That VW is a work of art man. The fab skills and end result are beyond awesome.

You're right. Norma clamps are especially beneficial when you have fluids under pressure.

Its the little details that can trip you up.

Thanks for the post ! Getting ready to buy a new ancillary hose kit for an 03 wrx. This is great info and the timing couldn't have been better ✊

T- bolt clamps were originally designed by and used in the aviation industry. The clamp is designed to eliminate the crushing forces you get from a worm gear style clamp. Because the tubes/ hoses they secure in A/C are clamped onto very thin aluminum, stainless or fiberglass parts. And are typically not under high pressure or used for fluids. This is why you had so many leaks in your system. No matter how tight you go on the nut the clamp is only going to clamp the amount it was designed to. On the aviation version they have a torque value stamped on the clamp band.

Good info John. Thanks for posting that.

The "Norma" hose clamps are actually designed for silicone hoses. The regular screw clamps will cut the silicone hose and cause the hose to fail. This style of hose clamp is available from multiple manufactures.

This guy is so right. All my made in China T bolt clamps leak. Those OEM Norma style clamps are consistent.

Thank you for saving us the headache. I’ve made a note of it for all future needs. 👍👍😎👍👍

I use the Norma on my Corvette, one and done.

Thanks for the tip 👍🏽.....I'm changing my T-bolt clamps.

Dude those Norma clamps are in my brand new cars' radiator hoses. They work a treat👍👍

Learn something new everyday. Regularly used the "SS. T" clamps in semi hazardous industrial liquid applications (always double clamped) however never in an auto project. Also, have never seen these "Norma" glorified screw clamps before, makes sense though. Thanks

Thanks for the info bought some for my sxs.

Thank you, for letting us know! I was planning to buy the T-Bolt ones. European cars use the Norma style...

You need constant tension hose clamps. The spring type used by OEM's are the best... and surprisingly cheapest too. You can of course go for constant tension worm drives too but those are really expensive. The reason is because hoses expand / shrink with temperature fluctuations and loosen over time.

Norma was used by OE VW too. The manifold boot clamps!

Awesome video!!! Exactly what I was looking for. The T Bolt clamps look nice, but I wanted the meat and potatoes; which one worked better. Thank you for making this video. 👍

The perforation/slots in the Nomas probably help it grip in some small way.

i have been having the exact same problems on my Subaru sand rail water lines, will try the norma's, thanks !

Norma is OEM for water cooled VWs.

Over here, the good clamps are called Jubilee Clamps!

Been using NORMA products for many years, they´re unbeatable.

those Norma clamps come in Mercedes Benz for over 20 years they are the best and do not pinch the hose

Don't use a 2 inch clamp on 1.5 inch tubing, that amount of deformation is from improper sizing and not reading the torque specs on the clamp. In 25 years I've never had a T-clamp failure and that's on high performance OTR and marine diesels.

You convince me to purchase some Normas clamps. 30 clamps for $45 from Amazon. I'm about to use silicon hoses for my SRT-10 Ram.

these clamps are far cheaper too, can use on cufflinks for steering drivrshafts too. do remember to angle it its easy to tighten and also for neatness sake trim the excess band and sand it a little to smooth the cut. it spares knuckle skin

That's surprising. I wonder if the worm gear type is also better than the clamps you would find on a stock early 70s Chevelle, where the screw is actually perpendicular to the clamp.

The best reusable/removable hose clamps are Breeze constant torque clamps. Smooth band so it doesn't extrude the hose material and is compatible with silicone. Belleville spring to allow for constant torque regardless of temperature. Gates PowerGrip SB are the best, but one time use only.

the truth. simple as that. i came to to the same conclusion years ago when i had to replace both plenum an manfold .. these norma's are also sold under many names cross the world. they are identical though

there is third option not on this list too. the springsteel keyring looking clamps that tough as nails to compress to fit on. but they do if u got the gauge right fit much more even pressure than loop or pin clamps. they are often sold and used with washingmschines. i never saw this on car before in my life until i fitted one to Renault clio 2006 radiator.. it was what was available in hands reach at the time. Still sits on the sam running car today

You used the wrong size clamp. Those clamps are fine but require more accurate sizing than worm clamps

Just wanted to know what you have in your Subaru motor to get 515 I have the same motor in a 65 bug let me know

Norma...German engeneering Grüße aus Deutschland

not the wrong clamp, just the wrong size clamp. jubilee style are more flexible in that respect. also not sure if t-bolts are supposed to handle huge pressures.

Do you have any shots of how you routed the coolant tubing?

murray clamp is even better

Would you use norma clamps over fuel injection clamps on fuel lines?

you need to get the proper diameter for these to operate as intended, they're not the one_size_fit_all kind

The original screw type clamp was made by Ideal Corp. from the 60s till it was copied and bought out by Parkar Hannifin. We made Billions and Billions of clamps that never quit.

Video describing replacement hose clamp for worm gear and spring type hose clamps. kzfaq.info/get/bejne/fZOchbR2uNiZaac.html

Your missing 4 other types of clamps to try

T-clamps are not suitable for automotive , they low pressure and are normally used for water , chemical and oil tanks on the main feed into a pump , you can have some success in auto but you will find them on air intakes and the filler hose on fuel tanks well thats how I've been using them for the last forty years....

none of those. constant tension clamp . issue solved

No offense but t-clamps are only for hydraulics or high pressure hoses with usually thick walls.also any clamps but especially T- clamps are diameter specific,, they will have numbers of diameters,,, 80mm to 90 mm max. best clamps but never used on automotive.. zebra clamps or tridons are okay,, but if you want the look and permanent clamps,, buy specific crimp type, such fuel lines,, a pain but the best,, also not reusable.. easy to remove but have to replace everytime.. but no screws and very clean look..