Frint Locking Hubs get HOT! Problem? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TRUK · 10-23-2003, 09:39 PM

After driving only about 5-10 miles, my front Warn hubs are too hot to touch. Is this a sign of a problem? Or is this normal. They are in the free position. The truck is new to me and I have not tried to lock them into 4wd.

They look pretty worn from the outside (sorry...pun)

**kwmech** · 10-23-2003, 10:44 PM

Wheel bearings may be to tight, the calipers may be sticking. Should not be that hot after only 5 miles.

TRUK · 10-24-2003, 12:09 AM

Thanks, Is there a way to test for this without having to disassemble the hub?

leadfoot067 · 10-24-2003, 01:00 AM

i would pull it apart and check the bearings....for sure...if the calipers come off easily then they are prolly ok....check the brake pads for even wear if not very even then and the calipers are difficult to remove they are prolly sticking... either thing will cause heat..im leaning towards the calipers sticking ive had some very bad bearings and they didnt create that much heat that fast....

**JIMs70GMC** · 10-24-2003, 04:56 AM

I agree look at those brakes calipers first. I had one seize up, talk about hot.

trukkers69 · 10-25-2003, 01:17 PM

The easiest way to check it w/out pulling down is to jack it up and spin wheel. See if brakes are dragging or has unusual noise or "rough" spot in bearings.

TRUK · 10-26-2003, 12:20 AM

I'll give that a try. I have not noticed any strange brake issues. I seem to roll pretty straight ane easy.

**Richard** · 10-26-2003, 03:07 AM

A siezed wheel bearing can create lots of heat by spinning the inner race on the spindle. I have experienced this problem.

Scrub · 10-27-2003, 11:15 PM

Hmm,
Is it a stock rig? seems like there is an issue on brake conversions where a check-valve keeps a certain amount of pressure in a drum brake cylinder and if you don't change the valves out when you put discs on then they don't release all the way and get hot. I'm pretty foggy on the topic, but maybe someone else knows.

I think the jacking up and spinning idea is the best.

Good luck.

10-23-2003, 09:39 PM	#1
TRUK Registered User Join Date: Oct 2003 Location: Carlsbad, CA Posts: 38	Front Locking Hubs get HOT! Problem? After driving only about 5-10 miles, my front Warn hubs are too hot to touch. Is this a sign of a problem? Or is this normal. They are in the free position. The truck is new to me and I have not tried to lock them into 4wd. They look pretty worn from the outside (sorry...pun) __________________ TRUK ~~~~~~~~~~~~~~~~ 2BLUE72 K5 BLAZER 4X4 ~~~~~~~~~~~~~~~~ Last edited by TRUK; 10-24-2003 at 12:19 AM.

10-24-2003, 12:09 AM	#3
TRUK Registered User Join Date: Oct 2003 Location: Carlsbad, CA Posts: 38	Thanks, Is there a way to test for this without having to disassemble the hub? __________________ TRUK ~~~~~~~~~~~~~~~~ 2BLUE72 K5 BLAZER 4X4 ~~~~~~~~~~~~~~~~

10-24-2003, 01:00 AM	#4
leadfoot067 horsepower junkie Join Date: Aug 2003 Location: graham, washington Posts: 326	i would pull it apart and check the bearings....for sure...if the calipers come off easily then they are prolly ok....check the brake pads for even wear if not very even then and the calipers are difficult to remove they are prolly sticking... either thing will cause heat..im leaning towards the calipers sticking ive had some very bad bearings and they didnt create that much heat that fast.... __________________ 67 short wide box,350/700r4/3.73posi 71 olds cutlass "S" mom bought new..12.30s@113MPH

10-24-2003, 04:56 AM	#5
JIMs70GMC user # 2756 Join Date: Jun 2001 Location: Chesapeake, Virginia Posts: 4,612	I agree look at those brakes calipers first. I had one seize up, talk about hot. __________________ 1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm

10-25-2003, 01:17 PM	#6
trukkers69 Registered User Join Date: Jan 2003 Location: Sebastopol Miss. Posts: 169	The easiest way to check it w/out pulling down is to jack it up and spin wheel. See if brakes are dragging or has unusual noise or "rough" spot in bearings. __________________ EXPERIMENTAL STAGES OF SANITY _____________________________ Run whatcha brung, and hope you brung enuff

10-23-2003, 10:44 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,667	Wheel bearings may be to tight, the calipers may be sticking. Should not be that hot after only 5 miles.

10-26-2003, 12:20 AM	#7
TRUK Registered User Join Date: Oct 2003 Location: Carlsbad, CA Posts: 38	I'll give that a try. I have not noticed any strange brake issues. I seem to roll pretty straight ane easy. __________________ TRUK ~~~~~~~~~~~~~~~~ 2BLUE72 K5 BLAZER 4X4 ~~~~~~~~~~~~~~~~

10-26-2003, 03:07 AM	#8
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,915	A siezed wheel bearing can create lots of heat by spinning the inner race on the spindle. I have experienced this problem. __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746

10-27-2003, 11:15 PM	#9
Scrub Collector of rusty Items Join Date: Dec 2001 Location: Sisters,Oregon USA Posts: 731	Hmm, Is it a stock rig? seems like there is an issue on brake conversions where a check-valve keeps a certain amount of pressure in a drum brake cylinder and if you don't change the valves out when you put discs on then they don't release all the way and get hot. I'm pretty foggy on the topic, but maybe someone else knows. I think the jacking up and spinning idea is the best. Good luck. __________________ Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends.

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