[SEL] Removing stuck piston help please

[John Hall]

I know zilch about an R&V so I'm assuming the piston and rod can't go out 
the bottom. Is it possible to drive the piston down maybe a 1/4" or so to 
break it loose and then hopefully push from the inside with out using  so 
much force as it would now be broken loose? Sounds like it is not stuck too 
tight if the penetrating oil is rapidly disappearing.

 You mentioned you didn't want to push on the bottom of the crankcase. Could 
you remove the crank and then put a piece of bar stock in it's place so you 
could push from that? Obviously damage to the mains would be a 
consideration.

John Hall


----- Original Message ----- 
From: "Peter Lowe" <plowe at exemail.com.au>
To: "Oldengine.org" <stationary-engine at oldengine.org>; "ATIS" 
<sel at lists.stationary-engine.com>
Sent: Saturday, August 11, 2007 6:42 AM
Subject: [SEL] Removing stuck piston help please


> Hi All
>
> My new vertical R&V has a stuck piston, not too stuck as the bore is in 
> good
> condition. I have place plenty of lubricant on top of the piston and it
> disappears down past the piston in an hour or so.
> I can't rock the flywheels back and forth against the conrod because the
> crankshaft is broken, the broken crank is not a problem as I knew about
> this.
>
> Would I removed the bid end bearing cap, remove the crank side cover
> removing the crankshaft. Then use a small hydraulic ram to push the conrod
> and piston up the bore and out??? I am not wanting to place too much
> pressure on the bottom of my crankcase.!!!
>
> Any answers from our knowledgeable colleagues would be appreciated?
> Curt Andree thought that Paul Maples had a web site that showed how he 
> over
> came a similar problem, does anyone have a link please if this is so.
> I have contacted Paul also.
>
> Regards
> Peter Lowe
> R&V Engine Registrar
> Australia
> Ph: 61-266453455
> http://www.oldengine.org/members/plowe/rv-engines/rvpage.htm
> http://www.oldengine.org/members/plowe/rv-engines/rv-register.htm
>
>
>