Rear Wheel Bearing '84 HELP!
01-29-2004, 12:17 AM
#16
Drifting
how do you achieve 350 ft-lbs? i keep using an impact gun, but most i know of cant torque that high. my rear bearings are squeaking and grinding again.......like the nut is loose. what do i have to do? torque, drive ten miles, retorque, drive ten miles, retorque, etc?
01-29-2004, 01:03 PM
#17
Racer
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Originally posted by SoCal Driver
This one shows the spacers in the correct possition.
This one shows the spacers in the correct possition.
01-29-2004, 01:49 PM
#18
Race Car
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Early 924's and 944's and 924S's
Using a 1/2" drive impact on shop air (about 100 psi at a decent delivery) you first tighten the nut firmly, no prolonged hammering, inspect where the cotter key cross holes are then hammer the nut to the next alignment. Install large cotter key.
The later 944's would be tightened firmly, no hammering, then tighten another 1/8 to 1/4 turn. Use a new nut as these are self locking. Clean the threads of grease too.
IF the hub has been loose on the stub axle for any length of time the splines in both are worn and it will be next to impossible to keep the assembly tight.
A trick on using an impact: Use one hand to twist the socket the opposite way that you are tightening/loosening. This gives the internal hammers more ramp up for impact.
Using a 1/2" drive impact on shop air (about 100 psi at a decent delivery) you first tighten the nut firmly, no prolonged hammering, inspect where the cotter key cross holes are then hammer the nut to the next alignment. Install large cotter key.
The later 944's would be tightened firmly, no hammering, then tighten another 1/8 to 1/4 turn. Use a new nut as these are self locking. Clean the threads of grease too.
IF the hub has been loose on the stub axle for any length of time the splines in both are worn and it will be next to impossible to keep the assembly tight.
A trick on using an impact: Use one hand to twist the socket the opposite way that you are tightening/loosening. This gives the internal hammers more ramp up for impact.
01-29-2004, 02:04 PM
#19
Burning Brakes
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A hint to tighten the large nut (for those that don't have an impact wrench nor a torque wrench that goes up to 350 ft lbs):
I used a 2 ft long breaker bar and myself to get 350 ft lb, i.e. I gently stepped on the end of it, while the bar was placed horizontally. Why? I'm about 180 lb, and times 2 ft long bar at 90 deg angle gives about 360 ft lbs. Depending on your weigt, you may step closer to the nut, or use a longer breaker bar.
I used a 2 ft long breaker bar and myself to get 350 ft lb, i.e. I gently stepped on the end of it, while the bar was placed horizontally. Why? I'm about 180 lb, and times 2 ft long bar at 90 deg angle gives about 360 ft lbs. Depending on your weigt, you may step closer to the nut, or use a longer breaker bar.
01-29-2004, 08:52 PM
#20
Drifting
okay well i did the socal driver method today. then checked with 250 ftlb torque wrench to make sure. i guess when it was tight with an impact wrench before, it mustve pulled stuff together, i dont know. ill keep an ear out for grinding/squealing.
