Torque Spec on Fuel Tank Straps

15 seems a little low to me. Do you have a jack taking the weight of the tank? My guess would be 30+
@QUALITYTRUCK @Goodysnap or some others should have a better idea.

 

I have the toque specs on my fuel and hydraulic tanks which is the same setup almost to what you have pictured. I removed both my tanks to do some repairs a few months ago. They are in a position where you can’t get a torque wrench on. Have to use a box wrench . I know this doesn’t answer the question for you, but I just make them good and tight with a little common sense not to over tighten. Don’t want to brake them straps. I think it’s around 30 like the other guy said

 

For comparison a Pete 16mm strap stud is 45-70 ft.lbs final torque. Probably a 100 to 120 gallon tank.

I think 15 is probably on the bottom end of where you wanna be. I wouldnt be afraid to go to 30 or so as mentioned.

 

Dam thanks man. I know she’s tight but I’ll throw the breaker on there and give em a few more cranks

 

Dont just work metric all the time- SAE is till common with certain things- That nut requires a 3/4 socket (as most do) Thats not Metric..I Dont think.

 

It’s 30ft lbs for aluminum tanks and 8ft lbs for steel tanks.

Those nuts look like nyloc nuts, they could be worn out, it wouldn’t hurt to replace them if they don’t seem like they’re staying tight.

 

You can put a lock washer then a flat nut on top, use a wrench to hold 1st nut in place then tork the top nut down to make where it cant back off?