Exaust Post Snapped Off?! - Honda Rebel Forum
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post #1 of 13 Old 05-18-2017, 04:57 PM Thread Starter
 
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Question Exaust Post Snapped Off?!

Hey Guys,
Ive been having a problem with the nuts on the exhaust backing off and yesterday when tightening the whole post snapped off. Is there anything I can do about this? The bike is now making a sound since there is a gap now witch I dont mind but I dont wanna blow my new exhaust pipe I just bought.




This is my 2009 Rebel. There are many like it, but this one is mine. It is my life. I must master it as I must master my life. Without me my motorcycle is useless. Without my motorcycle, I am useless. I must ride my motorcycle true. I must ride smarter than the enemy who is trying to kill me. (cars)
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post #2 of 13 Old 05-18-2017, 05:08 PM
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Unfortunately, this happens quite often. I think most of your questions will be answered here: Exhaust "studs"? here exhaust bolts broken, help in cFL ? and here: Help me fix broken bolt on engine for exhaust pipe

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post #3 of 13 Old 05-18-2017, 05:52 PM
 
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That "post" or stud is supposed to thread into the head. That one looks like its coated with epoxy or some such adhesive, and the stud may have just pulled out of the hole. You should verify if there are any threads left in the head to simply replace the stud with a new one.

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post #4 of 13 Old 05-18-2017, 06:43 PM Thread Starter
 
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Thank you very much! I will look into that and it would make it a LOT easier to just screw that in.

This is my 2009 Rebel. There are many like it, but this one is mine. It is my life. I must master it as I must master my life. Without me my motorcycle is useless. Without my motorcycle, I am useless. I must ride my motorcycle true. I must ride smarter than the enemy who is trying to kill me. (cars)
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post #5 of 13 Old 05-18-2017, 06:56 PM
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Be careful about riding it much with that exhaust leak. You will burn the exhaust valve.

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post #6 of 13 Old 05-18-2017, 07:00 PM Thread Starter
 
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Looks like it may have snapped since I dont see a thread on the other side like here: Honda Motorcycle Parts 2009 CMX250C A CYLINDER HEAD Diagram

This is my 2009 Rebel. There are many like it, but this one is mine. It is my life. I must master it as I must master my life. Without me my motorcycle is useless. Without my motorcycle, I am useless. I must ride my motorcycle true. I must ride smarter than the enemy who is trying to kill me. (cars)
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post #7 of 13 Old 05-18-2017, 07:03 PM
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Hard to tell by the photo, but they usually fail from over torquing by breaking flush with the engine head. Usually requires drilling the stud and using an EZ OUT to remove it. Then install a new one with a new copper washer, and be careful tightening the nuts since it only takes 10 ft-lbs of torque.

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post #8 of 13 Old 05-18-2017, 09:41 PM
 
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I wouldn't torque that stud more than 8 lb-ft or so. Those studs are pretty weak. Looking at the pic again it looks like the threaded part is broken off in the head. It can be drilled and removed with a stud extractor if you know what you're doing and are careful. Take it to a machine shop if in doubt, so you don't make things worse.

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post #9 of 13 Old 05-18-2017, 10:35 PM
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Honda OEM Service Manual says 10 ft-lbs.

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post #10 of 13 Old 05-19-2017, 06:56 AM
 
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Quote:
Originally Posted by 76Paw View Post
Honda OEM Service Manual says 10 ft-lbs.
Could be why they break on a regular basis. That is an M6 stud made of mild steel. 7-9 with lockwasher would be max for me. Does it feel like it's starting to yield as you approach 10?

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