Help getting the pistion in the sleeve on my ST G-.34H

Help getting the pistion in the sleeve on my ST G-.34H

Post by Steve » Wed, 16 Apr 1997 04:00:00



Quote:
>      I brought a new pistion ring and when I installed it the sleeve can't
> slide over it.  It won't go in so I have a clue that the pistion ring is
> the problem but how do I do it? Thanks,

You may get several ideas on this one.  Here's mine:

If you haven't already, remove the sleeve from the crankcase.  Turn the
sleeve upside down on the workbench.  Hold the piston and ring
assembly upside down in your hands.  Very carefully squeeze the ring
inside the groove so it is as close to the piston as possible.  Now slowly
slide the piston and compressed ring into the sleeve.  Be very careful as
the ring is very brittle and can easily be broken.

On larger pistons, ie. motorcycles, cars, etc.  they make a tool called a
ring compressor.  It kind of looks like a tin can cut lengthwise and then a
screew type clamp is added in order to make the can smaller and smaller
in diam.  With pistons the size we use, fingers will generally do the trick.

 
 
 

Help getting the pistion in the sleeve on my ST G-.34H

Post by Carl Ficklin » Wed, 16 Apr 1997 04:00:00



Quote:
> Hi,
>      I brought a new pistion ring and when I installed it the sleeve can't
> slide over it.  It won't go in so I have a clue that the pistion ring is
> the problem but how do I do it? Thanks,
> Chris B.
> http://members.aol.com/CHRISBOSCO

Usually with a ring there is a small pin in the grove to keep the ring from
getting caught on the ports. You must line up the pin with the ends of the
ring, very carefully. Then starting with the opposite side of the ring,
slowly work the ring around both sides while working both into the sleeve.
DON"T force anything or you will break the ring! Use pleanty of oil to help
out.  You also may have a piece of carbon trapped behind the ring. Check
this by being sure the ring can seat all the way around the piston, before
trying to slip it into the sleeve.

Carl, in Fremont, CA. Corsairs are more fun, Shuttles too.
www.best.com/~copilot/welcome.shtml for the Bentwing hanger


 
 
 

Help getting the pistion in the sleeve on my ST G-.34H

Post by CHRISBOS » Wed, 16 Apr 1997 04:00:00


Hi,
     I brought a new pistion ring and when I installed it the sleeve can't
slide over it.  It won't go in so I have a clue that the pistion ring is
the problem but how do I do it? Thanks,
Chris B.
http://members.aol.com/CHRISBOSCO

 
 
 

Help getting the pistion in the sleeve on my ST G-.34H

Post by Gerr » Wed, 16 Apr 1997 04:00:00


Quote:

> Hi,
>      I brought a new pistion ring and when I installed it the sleeve can't
> slide over it.  It won't go in so I have a clue that the pistion ring is
> the problem but how do I do it? Thanks,
> Chris B.
> http://members.aol.com/CHRISBOSCOMake sure you have the split in the ring lined up with the pin in the piston..

Gerry
 
 
 

Help getting the pistion in the sleeve on my ST G-.34H

Post by CASO » Thu, 17 Apr 1997 04:00:00


chris the piston has a small pin in it {you will have to look for it in
the ring groove } you must line up the ring gap with this pin . this in
turn will allow the ring to compress and slide into the sleeve . the
purpose of this pin is to keep the ring from rotating around the piston
and getting snaged on the exhaust port    dave                            


 
 
 

Help getting the pistion in the sleeve on my ST G-.34H

Post by arb » Thu, 17 Apr 1997 04:00:00


hi,
i'm not to sure about the supertiger engines but os has a small pin in
the grove so that the gap in the piston ring will sit around the pin. i
take and put a small pensil mark on top of the piston where this pin is
so i can keep an eye on the alighment. i oil up the sleeve and ring and
take the piston to top dead center. this should then slide down the
piston with ease. make sure the ring doesn't fall into one of the port
openings.

doug

Quote:

> Hi,
>      I brought a new pistion ring and when I installed it the sleeve can't
> slide over it.  It won't go in so I have a clue that the pistion ring is
> the problem but how do I do it? Thanks,
> Chris B.
> http://members.aol.com/CHRISBOSCO