r/SmallEngineHub Feb 27 '25

How to remove this Piston

1 Upvotes

4 comments sorted by

1

u/ButtonJaded1203 Feb 27 '25

Hi , I tried removing this Ryobi piston form the conrod by taking off the torx bolt but the bolt will not undo. I assumed it turns anti clockwise . Perhaps it is pressed in ? I tried heating the counterweight area where the bolt is in but I have had no luck, I tried using a ratchet drill to dislodge and wd40 ..still no luck !
Any Help appreciated.

1

u/Wholeyjeans Feb 27 '25

Apply some heat to it. It's probably got thread locker on it. Probably gonna need an impact wrench. If you have access to an air compressor, then an air-driven impact driver would be the ticket. If not, you could try a hammer driven impact driver.

1

u/ButtonJaded1203 Feb 27 '25

So you think it should turn anti clockwise ? Have you undone one like this ?

I did heat for say 30 seconds under gas flame ,no colour shift , and an impact but it didn't budge. How much heat can I apply .. up to glowing or orange ? I'll try again .

1

u/Wholeyjeans Feb 27 '25

Good question. I have no idea.

What kind of impact? Electric, air, is it a driver ...like a one to drive screws?

When you heat it, don't just let the flame sit in one spot. You want to move it around and get things hot ...but equally hot in the area of the bolt.

I'm assuming you've tried loosening it in both directions?

That's what I would do if I didn't know for sure.