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850 flywheel bolts question


 
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LarryMaine
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Joined: 07 Sep 2018
Posts: 121


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PostPosted: Wed May 12, 2021 2:14 pm    Post subject: 850 flywheel bolts question Reply to specific post Reply with quote

The rebuild is progressing, engine back off the stand and am re-installing the flywheel. The bolts look original but they are ones I have never seen before. If you look at them from the top down, they are cross hatched just like a castle nut, but the cuts are shallow in the head of the bolt. There are no holes in the bolt heads where one would wire all 6 together to keep them any one from rotating out. Anyone know why these bolts have these shallow cross cuts in the head? They also have some small lettering on the heads. Any info would be interesting. Thanks, Larry.
 
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Dieseltech
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Joined: 29 Feb 2012
Posts: 9759
Location: Indiana

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PostPosted: Wed May 12, 2021 2:17 pm    Post subject: Re: 850 flywheel bolts question Reply to specific post Reply with quote

Put it together and don't worry about it, I have those bolts in my Ford flywheel too..
 
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Bern
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Joined: 05 Apr 1999
Posts: 7833


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PostPosted: Wed May 12, 2021 4:19 pm    Post subject: Re: 850 flywheel bolts question Reply to specific post Reply with quote

I agree with Dieseltech, run them. I've seen them on many flywheels. I have no idea why they did that.
 
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Eman85
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Joined: 30 Jun 2015
Posts: 411


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PostPosted: Wed May 12, 2021 8:04 pm    Post subject: Re: 850 flywheel bolts question Reply to specific post Reply with quote

There are a lot of bolts like that. I found some that even have a small slot in the threads with what appears to be loctite in the slot. I'd use loctite on those bolts and torque them to spec.
 
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