Topic: Both knuckes very warm to touch

[guywithuglyyota]

I recently did a knuckle rebuild on my toy and after about a 30 minute drive at 55 mph the front hubs are warm to the touch, one of them nearly too hot to touch for long. Should I back off the bearing retianer nut??? Im assuming if it is to tight this will happen.

thanks in advance

[lowgeared]

Every single time i've repacked the front bearings, the first trip out the hubs were hot to the touch.  I think the grease is just finding its happy place and the bearing is wearing to the race.  It will go away if you did it right.

[ezthere]

Dude if it's warm enough to the touch..The grease has found it's happy place..When I repacked my 85 runner I went to the vented disc. Why is that important to note. My hubs where also warm to the touch.I thought it was the tight clearance with the disc and shoes.So I went back into the hub nut,losened it while spinning the hub I tightened the nut till just snug then a quarter turn and bent the washer tab...No problems....Still warm 

For shits and grins did you know on the DC-9 & MD - 80 aircraft the nose tire retaining nut is torqued to 25 foot lbs..You can almost tighten it with your hand. I work for Continental Airlines.

Chuck

[FIREBALL]

ya, i'd re-check the hub nuts, and loosen them up a little

[guywithuglyyota [OP]]

I believe that! Im a crew chief on f-16's and f-15's and our retaining nut has a pre-laod of 190-200 inch lbs, and a final torque of 25- 100in lbs! And thats for the main landing gear!

Thanks for the info on your rebuild lowgeared and esthere, I already did just like you guys did and re-loaded the bearing just to be sure. My service manual says load bearing 22ft lbs then back off and tighten as much as possible BY HAND. I have never bothered to check the hub temp before since this is my first time servicing the knuckle.

 

[79coyotefrg]

i never tighten my hub nuts more than a very firm hand tight,  and by the way my truck has 374000 miles to date,   why  ??  i actually was taught this by an old wise man, aka my dad,  when serviceing rear axle bearings on large trucks,  run the nut down with a ratchet, spin tire,  back off and hand tighten