Hi Everyone; Has anyone used this tool to install the crankshaft pulley? It calls for 380 Nm. I read where this is easier since you don't need a torque wrench. How do you convert Nm to degree of angle? I read an article that said tighten to 80 degrees than set to zero and tighten to 80 again, this would equal 375 Nm.
Also getting different values for converting Nm to ft lbs.
One said 380 = 85 ft lbs the other 380 =280 ft lbs
Thanks for the help
Mitch

 

Mitch:
I have only had experience when the fastener is first torqued with a torque wrench to a certain spec. Only then was the angle gage used to complete the tightening. I know of no way to begin the process with an angle gage. I do not think that Nm to degree of angle can be converted since both are derived specs that are dependent on the tension properties of the fastener.
380 Nm is right at 280 ft-lb.
I am sure that there are others on the forum more knowledgeable.

 

Thanks Dr D for the info and your time
Much Appreciated
Mitch

 

Torque angle gauges are used for precise torque for stretch to yield fasteners. In general that type of fastener is torqued to a give Nm or foot pound torque rating and then turned an additional degree of rotation.
The additional rotation is used in the head bolts for Jaguar. That is the reason that once removed they can be stamp marked on the head of the botl and used one more time. When encountering them if they are stamped then they have to be replaced.
A device that makes torquing easier is a torque multiplier. A 2 to 1 would give you 50 ft pds in and 100 ft pds out.

 

Thank you Avern1 for the info. I'm going to look into a torque multiplier.
Again thanks
Mitch