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Question:

Help! Cant remove Axle Nut.?

I‘ve tried to remove the axle nut from the front wheel of my 91 Toyota Camry. I‘ve tried penetrating oils, torch, chisel on edge and no luck. Have to use deep socket to clear end of axle shaft and it is inset so a flat wrench cannot be used. Cannot get much torque on end of wrench. Starting to mess up edges of nut. What else can I do? Too late to bring to repair shop. I will be replacing the axle as well as the nut.

Answer:

a long pipe slid over the end of a ratchet will greatly increase torque. and yes, be absolutely sure you are turning it the right way. get a replacement nut since the old one is damaged. thread it on the part of the shaft sticking out to determine which way it should go. if worse comes to worst, use a dremel with a cutoff wheel to cut the nut.
The cars engine is tuned to overcome the back pressure in the exhaust, basically the amount of force needed to make the gases flow through the system, change that and your engine will be out of tune and lose power, the same is not true of a turbo car where reducing back pressure increases power. Any change to the cars exhaust must match changes to the engines setup, hence the existence of tuning companies who will re-map your engine using a rolling road, if however you just change the back box this will only have a marginal effect.
Some Engines seem to lose torque , others gain. A lot depends on the engine's compression as well as operating temperature and the size of intake and exhaust valves. Talk to a performance shop's machinist about a specific motor and application.
Try and use a six point impact socket,with a breaker bar,hit socket with a small sledge hammer.Then attach the breaker bar to the socket must use 1/2 inch drive .Then when it is set up slide a piece of pipe that fits over the breaker bar slide the pipe out about half way up the breaker bar and try again .Just be careful keep one hand with force on the socket pushing in while the other is pushing down .This should work good luck
First check the threads of the axle and make SURE you are turning it the right way - those are right and left hand threads (dependant on side). Second; check that the keyway is clear IE: No carter key, no slip key, no beveled edge to keep the nut from turning. Third; Get the right socket!!!!! if you are not using a 6 point impact socket 1/2 drive you will NEVER get it off. Those are held on by about 200LB++ of torque; IE: one heck of a lot of knuckle busting - a four foot cheater bar or 1/2 drive impact is normally required - ALSO- have someone hold in the brake when you try to break it loose (or put it back on) I have seen people damage the parking awl inside the transmission (automatic) doing that. - ALSO- Don't use that torch you will overheat or even break the seals on the wheel bearings.

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