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Removing Seized Piston


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#1 AlexMozza

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Posted 11 March 2015 - 06:29 PM

What is the best way to remove a seized pisotn.

Its number 3, on a 998.

 

I have tried tapping it out on the Con Rod, and on the base of the Piston.

\its been soaked in PlusGas too.

Any other ideas? 



#2 Spider

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Posted 11 March 2015 - 07:16 PM

I've had two over the years that were really stuck. I ended up inverting the block in the press and using brute force.



#3 AlexMozza

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Posted 11 March 2015 - 07:25 PM

Well, it will need a re-bore, so I might end up just 'going for it'!

Its being soaked in Diesel overnight



#4 ANON

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Posted 11 March 2015 - 08:37 PM

diesel/atf and acetone



#5 ChopperHarris

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Posted 11 March 2015 - 08:42 PM

I would heat shock it, if it comes to it

#6 wile e coyote

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Posted 11 March 2015 - 11:47 PM

Diesel will eventually work - can take weeks though! Chunk of 2" x 2" softwood and a mallet.....with increasing impact....



#7 Mini ManannĂ¡n

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Posted 11 March 2015 - 11:57 PM

My first attempt would be heat.  You'll have to have loads of it though 'because of all that cast iron.



#8 se_juggles

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Posted 12 March 2015 - 09:20 AM

Jack hammer......




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