The torque for wheel bolts depends partly on bolt size. Volvo uses a 14mm bolt. Much larger than the Toyota. 5 ft lbs doesn’t matter for wheel bolts. I thought it was 103, whatever, just make certain that the threads are clean and dry. No rust, no junk, but also no oil or grease, which includes anti seize. If you’re worried about corrosion, as I am because of the salt water around here, hit the bolt holes with some pure zinc primer (available at Lowe’s Home Depot, etc and sold as cold galvanizing compound) that way the threads will be clean, dry, and protected from corrosion.
Angle torque is more precise than just torque.
Here’s why - all torque values are a proxy for bolt stretch. The stretch in the bolt is what clamps the parts together. Clean dry threads are the basis for torque, but there are still variations, and the same torque may, or may not, result in the stretch that is needed if the threads, or the fitting have some roughness, or contamination.
But an angle results in precisely the same stretch each time. Pure geometry. 30degrees of angle on a 14mm x 1.5 pitch bolt gives you a tension of .125 mm on the bolt. Every time.
Where clamping forces are critical, angle torque is often used. The torque value gets rid of slack, the angle sets the stretch.
Current Fleet:
2016 Tundra Crewmax 4WD 1794
2005 MB S600 (126K, Michelin AS4, HPL 0W40)
2005 MB SL600 (55K Michelin AS4, Mobil 1 0W40)
2004 V70R (143K, six speed M66, HPL 5W40)
2004 XC90 (235K, HPL 0W30 Euro)
2002 V70-XC (295K, HPL 0W30 Euro)
2002 V70-T5 (225K, IPD bars, Bilsteins)
2001 V70-T5 (125K, IPD downpipe, cat back and other mods)
1932 Packard Sedan (straight 8, dual sidemounts, original paint and interior, Shell Rotella 15W40)
Bookmarks