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[Shop-talk] how to loosen stuck pistons?

Subject: [Shop-talk] how to loosen stuck pistons?
From: bspidell at comcast.net (Bob Spidell)
Date: Sun, 17 Apr 2011 13:42:42 -0700
References: <006801cbfc49$d8e17ee0$8aa47ca0$@cablespeed.com> <6.2.5.6.1.20110416120300.04e0bb20@cox.net> <008401cbfc56$4dcc9030$e965b090$@cablespeed.com> <6.2.5.6.1.20110416155842.04c579f0@cox.net> <00a501cbfc99$21bb7400$65325c00$@cablespeed.com> <6.2.5.6.1.20110417093246.04b760c8@cox.net> <4DAB475E.5030106@tx.rr.com>
I'm not sure any penetrant will solve the problem--since your rings may well be 
partially welded to the cylinders--but FWIW:

http://www.stovebolt.com/ubbthreads/ubbthreads.php?ubb=showflat&Board=10&Number=215167&Searchpage=3&Main=30233&Words=kstuck+engine+kroil&topic=0&Search=true

-- or --

*http://tinyurl.com/66z7ff5*


Bob


On 4/17/2011 1:02 PM, BJNoSHOV8 wrote:
> I've got an engine that's frozen (stuck).  My theory is that they ran it 
> without oil.  The bearings don't look bad but 
> the small ends of the rods look like they got hot.  I need to get the pistons 
> knocked out.
>
> With the engine in the car I pulled the head off and soaked the tops of the 
> pistons in PB Blaster, but it didn't seem 
> to help.   but then that is trying to rotate all 4 pistons at one time.  I 
> pulled the engine out, pulled off the pan, 
> and tried to knock the pistons out one at a time.  I couldn't get them to 
> move.
>
> I've finally decided that the PB Blaster might go beside the pistons but 
> maybe it couldn't get by the rings.  So I can 
> try soaking the pistons from the bottom.  Someone told me to soak the 
> cylinders in diesel.  I'm wondering if there is 
> anything that would be better, such as ATF (I've got some extra ATF).  I can 
> set the engine upside down and fill the 
> bottom half of the cylinder and let it set for awhile.
> _______________________________________________
>
>


-- 
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Bob Spidell           San Jose, CA            bspidell at comcast.net

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