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Author Topic: cylinder stud  (Read 539 times)

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Offline yellowjacket

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cylinder stud
« on: December 06, 2015, 11:16:05 AM »
Had the cylinder head and was torqueing down the bolts and snap.  I have about 2" left of the stud.  Is welding a bolt on and heat the best option to get it out.  I also now need a cylinder stud if someone out there has one for me.  Thanks
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: cylinder stud
« Reply #1 on: December 06, 2015, 12:53:58 PM »
Plenty of factory studs floating around for you but you gotta tell us which engine.

Weld on a nut and have a go.

How much torque?
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Offline yellowjacket

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Re: cylinder stud
« Reply #2 on: December 06, 2015, 01:47:44 PM »
Thanks for the reply.  Front left #12 in the torque sequence.  Honda CB550.  Torqued to 15lbs, last one and it snapped. 
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: cylinder stud
« Reply #3 on: December 06, 2015, 04:55:18 PM »
15 is not excessive. Was it twisting?!

Can't help with the smaller engines, sorry.
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As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline yellowjacket

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Re: cylinder stud
« Reply #4 on: December 06, 2015, 05:29:40 PM »
No twisting.  I did the first 11 and then snapped the last one.
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Offline yellowjacket

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Re: cylinder stud
« Reply #5 on: December 07, 2015, 08:12:35 AM »
Need help locating a factory cylinder stud. Look all over the Web and I am at a loss. 
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Offline calj737

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Re: cylinder stud
« Reply #6 on: December 07, 2015, 08:21:11 AM »
Just to be clear: when you install the stud into the block, torque is 8#. The head nut is torqued to 15# in stages. First use about 6# in sequence, then 11# in a full sequence, then finally 15#. If you're using a new gasket, it is also "best" to let the torqued head stand overnight, then loosen all the nuts (again, in proper sequence) and re-torque to a final 15#.

If you attempt to torque the studs themselves to 15# in the block, you run a great risk of shearing the stud AND/OR tearing the threads out of the block.

Not sure which phase you are dealing with, but just providing a little clarity.
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Offline yellowjacket

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Re: cylinder stud
« Reply #7 on: December 07, 2015, 08:30:35 AM »
Thanks.  I did torque the nut in stages.  This is my first build of a bike this size so I have been reading up on it quite a bit.  I have rebuilt quite a few single cylinder bikes.  Having a blast with this bike and I can,t wait to hear it run.
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