Hose clamps 812, which manufacturer/tool.

Everything you want to know about properly tightening the VISA clamp from Caillali.

https://www.sofcaproject.it/en/products/clamping-systems/evt-coil-system-for-visa-clamps

Apparently you just pull on the strap by the 'pip' and when it shears off you're done. Have no idea how to perform this with a manual tool. Search for VISA clamp tightening tool.

 

I’ve gone down this road recently in hopes of trying to keep my car all original but still be able to do my own maintenance.

I found a local distributor that can get me the tool from Caillau in France (TV 400) for about $2500 and a 4-week lead time. It’s the pneumatic gun. Although the site and other documents state there are electric and manual versions of the tool, when the distributor inquired, Caillau said there are no other tools, pneumatic only.

$2500 seems steep for a zip tie gun on steroids. Also concerned it will arrive and still need more “parts” to work properly and I’ll have to keep buying components until I get it worked out.

But part of me is considering it. Wonder if I could rent it out to other Italian car DIY’ers for a fair price and amortize the cost that way over time, but not sure there’s enough interest.

 

1. So I found a used TV400 in France on eBay for a few hundred dollars vs. a couple thousand new. Also found a translated to English user manual (free pdf) with a great illustrated parts breakdown diagram and part numbers should the tool ever fail/need service.

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2. Ordered a bag of clamps from Eurospares for under $10, shipped free with a much larger order.

3. Made an experimental/sacrificial test rig using an old sink drain tail piece and the simplest hose I could find to fit at Autozone.

4. Set compressor to 82 psig, pulled the trigger following simple instructions until the pip popped. Popped on second pull (suspect plastic tail piece flexed more than an aluminum pipe would).

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5. I can now service my coolant lines and reinstall factory collars (clamps) to keep the factory look.

 

No one other than you will look at your radiator hoses and see its factory look

 

Correct. The occasional dealer visit and a future owner maybe, but more for me than anything else.

 

Funny, I would notice. I went through quite an ordeal to restore the vapor breather tube assembly to my F12 battery thermal blanket and not even the service department could tell it is there.