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SBF HB bolt seized and canít remove

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SBF HB bolt seized and canít remove

Old 05-04-2021, 04:03 PM
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Default SBF HB bolt seized and canít remove

Iíve had some challenges over the years however none like this. If it wasnít for going in 69 Mach 1 Iíd given up by now. The engine is a stroked 94 351 Windsor with the reverse rotating water pump (shorter). Not good in my app so am wanting to swap out the timing chain cover and pump to old school.

Iíve tried hammering the head, applied a good amount of heat around bolt washer, used 1/2Ē snap on impact, 110 impact as well as 4ft cheater bar. No go.

Any help be greatly appreciated. Fords 🙈
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Old 05-04-2021, 05:03 PM
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There's always penetrating oil and heat cycles. Assuming it's rusted in, heat is the only thing that can quickly break the rust bonds. Penetrating oil can work wonders if you have the time.

Worst case you may be able to grind off the head of the bolt, remove cyl head and have better access to apply heat and more bolt to grip if the bolt head rounds off.

Edit: thought it said head bolt. Disregard last paragraph.

Last edited by zz28zz; 05-04-2021 at 08:16 PM.
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Old 05-04-2021, 06:36 PM
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is it a head bolt or a water pump bolt?water pump bolts like to corrode themselves in there really good.break the bolt off and deal with whats left.most likely,heat and welding nuts to it ,to get it out.
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Old 05-04-2021, 06:55 PM
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For years I restored old British sports cars, mainly MGs and Triumphs...and know well the frustration you are going through. I remember well the WEEKS, yes, weeks...I spent replacing the rear end of a TR-6 that had seen far too many salty roads. Heat cycles and PB Blaster along with an impact gun were what worked there...but it can be DAMNED aggravating, for sure.
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Old 05-04-2021, 06:55 PM
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Thanks guys. Iíve tried a lot of heat but can do
more. (used yellow tank). Just didnít wanna wreck crank seal in which case I canít get out. It is the harmonic balancer bolt Iím dealing with. Never dealt with such a stubborn bolt. Iím not giving up though.
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Old 05-04-2021, 07:05 PM
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Could it be left-hand -thread?
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Old 05-04-2021, 08:19 PM
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GEt the biggest and heaviest impact socket you can. Learned this back in the honda days. Thought I was being joked around. Nope. Tool companies actually then made these extremely big bulky sockets just for those honda crank pully bolts.Yes, learned i learned something from the fart can guys. Imagine that. Lololol

I once had to use a breaker against the concrete floor and engage starter for a quick second on an explorer (exploder) to get itís harmonic balancer bolt out. Customer car. I was nervous as hell but it worked. Lolololol
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Old 05-04-2021, 08:20 PM
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Iím sure you donít want to hear this but, maybe when balancer got pulled off before, puller was not used correctly and threads on end of crank are messed up. Bolt then got jammed home with impact on reinstall and now youíre screwed. Iím assuming someone other than you had it apart before.
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Old 05-04-2021, 08:42 PM
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Originally Posted by SB View Post
GEt the biggest and heaviest impact socket you can. Learned this back in the honda days. Thought I was being joked around. Nope. Tool companies actually then made these extremely big bulky sockets just for those honda crank pully bolts.Yes, learned i learned something from the fart can guys. Imagine that. Lololol

I once had to use a breaker against the concrete floor and engage starter for a quick second on an explorer (exploder) to get itís harmonic balancer bolt out. Customer car. I was nervous as hell but it worked. Lolololol
done the same on many duramaxís. Wrench against the frame and bump the starter.
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Old 05-04-2021, 09:29 PM
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On my D-max, had to use a giant 3/4" breaker bar. Luckily it came loose. Starter trick was my backup plan..
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