Loose Piston STUCK RINGS

[green-thumbs]

An otherwise good piston with all 3 rings stuck flush. Tried WD40 and later electric heat gun without results, My batting average with really stuck rings would not get me a spot on a sand lot team, Am I on right track with heat or are ther techniques those in the know use?

Is this a job for Gibbs?\T

Thanks

Louis

 

[fleetwin]

How about placing the piston in the oven set at 200F?  Needless to say, you can’t save the rings, don’t chance it…

[z4lunch]

Maybe try Kroil

Steve

[wedgie]

ultrasonic cleaner .

Put piston in glass jar filled with transmission fluid. put lid on jar. Submerge jar in ultrasonic cleaner with heater. run many cycles over a few days.

[Sam M.]

Tubs has a video about this on Youtube.  I think a lot of tapping did save a seized piston ring if I remember correctly.  I’ve read that a different approach to this is to run the motor with the stuck rings and they should free up, but this is not a reccomendation as I haven’t tried it.  Just providing ideas.

[crosbyman]

I have used  Dupont teflon on realy hard stuck bolts…the stuff seems to have a high  capilary effect  and releases stuck parts.

I use this stuff…not common everywhere I  guess

Dupont Teflon Snow & Ice Repellant, 284-g | Canadian Tire

Joining AOMCI has priviledges 🙂

[RICHARD A. WHITE]

I follow the Chris Scratch method…

Using the handle of a small hammer, ball peen style, gently tap the ring area, starting nearest the gap. It will eventually loosen the ring.

Using some solvent, such as Kroil won’t hurt.

Currently did this to a Lockwood Ace piston ring… ring not broken, but now free… now to gently remove it from the piston so that I can clean the grooves properly.

 

Respectfully

 

Richard White

http://www.richardsoutboardtools.com
classicomctools@gmail.com

[Tubs]

Sam M. wrote:

Tubs has a video about this on Youtube.  I think a lot of tapping did save a seized piston ring if I remember correctly.  I’ve read that a different approach to this is to run the motor with the stuck rings and they should free up, but this is not a reccomendation as I haven’t tried it.  Just providing ideas.

I do have a video from 10 years ago removing a ring from a Rowboat Motor piston. Here is the link. https://www.youtube.com/watch?v=fWMUDYfhqW0&t=28s   While I was 100% successful removing these 3 rings, rings become thinner in years to come. My percentages on the thinner rings is slightly above “O” when they are stuck like the one in my video.  

 

 

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[crosbyman]

https://youtu.be/Qv5wdIB3LVQ

Joining AOMCI has priviledges 🙂

[green-thumbs]

Add this to youre Does Not work and Shold Not be Tried

While wife was out shopping, I baked pistont at 500 degrees

until it was hot and then some, Pulled it out with tongs and

applied wax to are of rings,, The rings are still stuck and the house stinks from whatever was on piston .Heat and wax has worked well in other applications, but, not this time,

Louis

[Author]

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