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450 Frozen

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Bill(Tx)

08-06-1999 13:33:02




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I've been working for months to unstick one or several pistons from a '57 450 without any progress. Tried ATF, pentrating oil, marvel, in every brew known to man. More ATF, rocked her, more ATF, through this cycle for 5 months.

So instead, I think I'll try this..pull the valve cover, remove the rocker arms, remove the push rods, then pull the head. Then pound the stubborn pistons into submission. I don't plan an overhual just yet because the engine ran well before freezing. Do I have the dissassembly process correct, and is the assembly in exact reverse order? I'll renew or grind the valves if necessary and generally clean-up.

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Ken T

08-06-1999 16:47:21




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 Re: 450 Frozen in reply to Bill(Tx), 08-06-1999 13:33:02  
Just one suggestion, which you are probably aware of anyway: Don't tap on a piston if it is close to top dead center or bottom dead center. Doing so will bend connecting rods and possibly also bend your crankshaft.



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The Red

08-06-1999 13:37:07




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 Re: 450 Frozen in reply to Bill(Tx), 08-06-1999 13:33:02  
Bill that is exactly the procedure I used on the H. I had a steering shaft I had to remove first. I left the manifold on and that made it easier to get it pulled up and off the H. Had to do some tapping on the manifold to first get it loose.



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