T=Bolt Clamps

[Nonchalant1]

For my shaft log hose clamps, I switched the prior owner's perf screw clamps over to beefy T-bolt clamps. The question is, how tight do you tighten these, since they seem to just get tighter and tighter as you crank the nut on the T-bolt. I don't wnat to split the hose material or crush the shaft log. I just quit when it seemed tight as heck and way tighter than I could get a perf screw clamp.

BTW - From 3 days on Lake Michigan, the shaft log glands now run cool and drip little after repacking with GFO and rotating the log hose 180 degrees to correct droop.

Doug Shuman
1978 53MY

 

[MikeP]

Doug,

I have a 30 year-old table listing hose clamp torques but they are for regular hose clamps, not t-bolts. I haven't seen one for T-bolts. For regular clamps:

Size 3-6 25-30 Inch Pounds
size 8-16 30-40 inch pounds
size 20 and up 40-45 inch pounds

Don't know if this is any help at all...

 

[Nonchalant1]

Mike,

Thanks. From years of doing hose clamps restoring old cars, I have a "feel" for how tight to get good clamping pressure without bending the perfs. It's just the T-bolt thing, which seems to apply unlimited pressure. I guess I'll just go by feel.

Doug