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Old 01-17-2019, 07:10 PM   #1
Eagle43
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Default Thread Locker

I'm working on my 1951 8BA flathead. Do I need to use thread locker on the connecting rod nuts etc. What are people doing?

So far I have the valves out, lapped and reinstalled with two stubborn ones replaced. I then checked compression and found none for some cylinders and up to 40 for others. I'm in the process of taking out the pistons. Looks like lots of rings are stuck. The bores are still standard and the bearings are .010 under. I plan the replace the rings and bearings which are showing some copper in a few places. I'm new at this and any advice would be appreciated.
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Old 01-17-2019, 07:18 PM   #2
Jack E/NJ
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Default Re: Thread Locker

No. Just use tork specs. http://vanpeltsales.com/FH_web/flath...ecs49-53V8.htm

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Old 01-17-2019, 07:33 PM   #3
rotorwrench
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Default Re: Thread Locker

Some had pal nuts but not all.
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Old 01-17-2019, 08:12 PM   #4
J Franklin
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Default Re: Thread Locker

I use locktite blue on every fastener as insurance, and it retards rust from locking up nuts. They stay together and come apart easily.
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Old 01-17-2019, 08:15 PM   #5
russcc
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Default Re: Thread Locker

For connecting rod nuts, I bought NOS ones from Fred Wilner at So Side Obsolete as they are 1 time use.
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Old 01-17-2019, 08:59 PM   #6
Ronnie
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Default Re: Thread Locker

Just use small block Chevy rod nuts you can get them at a bus stop and no loctite.


R
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Old 01-17-2019, 10:04 PM   #7
Pete
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Default Re: Thread Locker

Quote:
Originally Posted by Ronnie View Post
Just use small block Chevy rod nuts you can get them at a bus stop and no loctite.


R
Those are called Marsden nuts. Available at many places. Reusable also.
Used in many modern OEM engines.
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Old 01-18-2019, 12:11 AM   #8
Marvin/TN
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Default Re: Thread Locker

I like you animation Jack, reminds me of my days in the USAF back in the 60's. I was trained as Jet over two engines but worked on many more piston engined aircraft than I did Jets. I didn't really understand how a radial engine worked until after I got out of the USAF. I worked on a lot of P&W R-4360'S with 28 cyl's and 2800's and 3350's and to this day I love the sound of a Radial engine.
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Old 01-18-2019, 11:21 AM   #9
philipswanson
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Default Re: Thread Locker

Quote:
Originally Posted by Pete View Post
Those are called Marsden nuts. Available at many places. Reusable also.
Used in many modern OEM engines.
99% of parts people never heard of these. Order the SBC nuts.
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