Speedtoys

When porsche says a hose clamp is these sizes:

hose clamp 50 -70 w2
hose clamp s 61/15
hose clamp s 59/15
hose clamp sgt 20 -32/9


What is that saying?

Rob Edwards

First number is clamping range (in mm), second is (usually) the band width in mm.


Listing of most of the normaclamp specs are here:


http://www.normagroup.com/norma.nsf/res/NORMACLAMP_TORRO_en.pdf/$file/NORMACLAMP_TORRO_en.pdf


Check out the torque caps on page 11- probably holds the answer to how much torque is appropriate for a given clamp....

77tony

http://www.jegs.com/p/Gates/Gates-Po...ID=30632893631

the flyin' scotsman

25mm per inch then apply Robs input

Speedtoys

Tony:

That's precisely why I asked/

dprantl

Those look like they would be fun to remove...

Dan
'91 928GT S/C 475hp/460lb.ft

Speedtoys

Tip of solder gun.

Zip..done.

I asked originally because I was considering these..but it would cosrt a minor fortune to do "all at once". I might do them over time...dunno..but still always carry a hose clamp kit in the back.

Fogey1

Interesting, the synchronicity of issues. There's this thread, as well:

EXPERTS please chime in: how much to torque hose clamps?
https://rennlist.com/forums/928-foru...se-clamps.html

danglerb

I've seen tools used by the military that are torque limiting wrenches for hose clamps and the value is small. The "job" of most clamps isn't tension, its holding size so the hose doesn't slip over a barb.

Jim Devine

In the bottom of the "overview" section there is some info on tightening specs .
Interesting read- never heard of anyone actually doing it.

http://www.ultimategarage.com/abaprice.html