Head Bolts - HELP

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stevenforehand
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Head Bolts - HELP

Postby stevenforehand » Tue Apr 04, 2017 6:57 pm

Hi Guys

I'm in the process of rebuilding my '49 cub. I took out the head bolts and did not pay attention to where the long bolts went versus the short bolts. Can anyone point me in the right direction? Thanks!

Steven

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Re: Head Bolts - HELP

Postby ScottyD'sdad » Tue Apr 04, 2017 7:09 pm

Long bolts go where the head is taller, short ones, where it is shorter.
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stevenforehand
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Re: Head Bolts - HELP

Postby stevenforehand » Tue Apr 04, 2017 7:30 pm

Thanks. If I couldn't figure that out I'm not sure I need to be rebuilding the engine :-)

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ricky racer
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Re: Head Bolts - HELP

Postby ricky racer » Tue Apr 04, 2017 7:35 pm

:weaping: Now that's funny!! :weaping:

stevenforehand wrote:Thanks. If I couldn't figure that out I'm not sure I need to be rebuilding the engine :-)
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inairam
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Re: Head Bolts - HELP

Postby inairam » Tue Apr 04, 2017 8:21 pm

Next time make a copy of the page with torque sequence and tape it to the bottom of a cardboard box. Cut holes where the bolts are shown. Take out each bolt and place in the cooresponding hole. Keeps all the bolts in order.
When you only have 9 horsepower you need to know the names of all of the ponies!

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John *.?-!.* cub owner
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Re: Head Bolts - HELP

Postby John *.?-!.* cub owner » Tue Apr 04, 2017 8:50 pm

Also, it is a good idea to run the threads in the holes, and on the bolts if you have a tap and die set. It does not have to be a high dollar set just for cleaning up threads. Using a wire wheel on a grinder or in a drill is a good way to clean bolt threads also.
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Glen
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Re: Head Bolts - HELP

Postby Glen » Wed Apr 05, 2017 12:20 am

Hi,
Use a non hardening sealer on the bolt threads when you put the engine together, so it doesn't leak coolant through the bolt threads. The bolts go into the water jacket.
A sealer for automotive head bolts works. :)

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Re: Head Bolts - HELP

Postby staninlowerAL » Wed Apr 05, 2017 5:23 am

IMHO it's worth the extra $50 or so to replace the old head bolts with new grade 8 or grade 9. When you torque the bolts to #50 fp will find one that is weak and then you've got to do it all over again.


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