Just seen the Towtrust PDF with settings. I stand corrected; the list shows that the torque setting with nylocs is lower than for plain nuts, presumably due to the nylon insert providing some resistance thereby resulting in a lower setting being satisfactory. Ooops... as an ex-aircraft engineer I should have known (perhaps I did but at 77 my memory is fading - lol)
My old disco used to get dipped in the sea 3 times a week with the bracket being totally submerged. The rear chassis gave up long before the tow bar bracket!
It used to pull 2.5 tonne of boat. Below is the S3 that replaced it.
Again the tow bracket outlasted the vehicle chassis.
Quote: Originally posted by Skoda Bob on 09/9/2013
There are many railway bridges still with there original bolts from when they where built over 100 years ago.
Just leave them alone,
Who said anything about touching railway bridges......
------------- XVI yes?
As well is two words!
How does a sage know everything about everything? or does he? or does he just think he does?
Remember, if you buy something you bought it, not brought it.
The most important thing is the torque that these bolts get tightened to. The sandwich of bolt, washer, towball, bracket, shakeproof washer and nut, should be so tight as to keep corrosion out. A shakeproof washer is designed to cut into the surfaces either side of it, which is why you should always use new washers if things get undone for any reason.