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How to: unstick piston rings

#1

Lawnboy18

Lawnboy18

This is a simple mix to unglue rings that are seized onto the piston. It has worked very well for me on a 21 year old Lawn-Boy. Mix 30% of transmission oil and 70% of regular oil together. Replace the oil in the mower with this mix and run the mower a few times with this mix. Make sure to change the oil after, because transmission oil is very abrasive since it has many detergents in it.


#2

Carscw

Carscw

Lawnboy18 said:
This is a simple mix to unglue rings that are seized onto the piston. It has worked very well for me on a 21 year old Lawn-Boy. Mix 30% of transmission oil and 70% of regular oil together. Replace the oil in the mower with this mix and run the mower a few times with this mix. Make sure to change the oil after, because transmission oil is very abrasive since it has many detergents in it.
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Also works for noises lifters and sticking valves

(( cowboy up and get over it ))


#3

Lawnboy18

Lawnboy18

Carscw said:
Also works for noises lifters and sticking valves

(( cowboy up and get over it ))
Click to expand...

That also could work! It is mainly because of the detergents. I wouldn't try it on a car tho:tongue:


#4

Carscw

Carscw

Lawnboy18 said:
That also could work! It is mainly because of the detergents. I wouldn't try it on a car tho:tongue:
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This is a old timer trick that has been used on cars for many years.

(( cowboy up and get over it ))


#5

reynoldston

reynoldston

Lawnboy18 said:
This is a simple mix to unglue rings that are seized onto the piston. It has worked very well for me on a 21 year old Lawn-Boy. Mix 30% of transmission oil and 70% of regular oil together. Replace the oil in the mower with this mix and run the mower a few times with this mix. Make sure to change the oil after, because transmission oil is very abrasive since it has many detergents in it.
Click to expand...

Never had very much experience with 2 cycle lawn mowers, But I have had with 2 cycle snowmobiles. You say to run the mower with your oil mix in it. I have found with the snowmobiles they wouldn't start. As I recall I would end up removing the piston and that the rings would beak taking them out of the grove and end up buying new rings.


#6

Lawnboy18

Lawnboy18

reynoldston said:
Never had very much experience with 2 cycle lawn mowers, But I have had with 2 cycle snowmobiles. You say to run the mower with your oil mix in it. I have found with the snowmobiles they wouldn't start. As I recall I would end up removing the piston and that the rings would beak taking them out of the grove and end up buying new rings.
Click to expand...

Well, it was maybe too late for you, but I was able to start up no problem. I mowed my lawn twice. I will change the oil this week now to SAE30.


#7

reynoldston

reynoldston

Lawnboy18 said:
Well, it was maybe too late for you, but I was able to start up no problem. I mowed my lawn twice. I will change the oil this week now to SAE30.
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I agree 100%. Now I have had rings stuck to the cylinder wall and free them up and they will start after. I guess also are we talking about the same type engine 2cycle or 4 cycle engines?


#8

exotion

exotion

Neat! I'm going to write this down on my things I should know list


#9

Lawnboy18

Lawnboy18

reynoldston said:
I agree 100%. Now I have had rings stuck to the cylinder wall and free them up and they will start after. I guess also are we talking about the same type engine 2cycle or 4 cycle engines?
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I tried it on a 4 cycle. I guess it would be different on a 2 cycle since it would be too much oil in the mix.


#10

M

motoman

Mussbay, No , forum members agree that oil must be used. Motoman


#11

briggs

briggs

mussbay said:
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What the heck is this


#12

C

cut&spin

Lawnboy18 said:
This is a simple mix to unglue rings that are seized onto the piston. It has worked very well for me on a 21 year old Lawn-Boy. Mix 30% of transmission oil and 70% of regular oil together. Replace the oil in the mower with this mix and run the mower a few times with this mix. Make sure to change the oil after, because transmission oil is very abrasive since it has many detergents in it.
Click to expand...

thanks a lot . the rings on this 2 cycle mower move but are scored and so is the piston . I think someone ran straight gas in it.


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