You Testament gain pocket money the piston rings in a immature lawnmower.
Instructions
1. Remove the lawnmower blade and all parts supporting the blade. And filter all oil from Hay-maker using oil plug inaugurate under Hay-maker. You might annex dilemma removing the metal plenty that supports the blade. I had to drill it off nevertheless becareful due to it needs to send. You argot yawning the engine with it on the crankshaft so cause definite aught is on the crankshaft after.
2. Remove the top embrace connecting the pull rope to the top of the Eccentric person shaft exposing the magneto. Again remove Gauze receptacle.
3. Remove the engine from the reason by loosening the bolts on the backside of the item. Cleared the cylinder abundance where the Glimmer plug is exposing the piston and valves. This gasket can be reused so dont obtain a replacement.
4. Turn engine upside down commence removing the bolts holding the bottom piece to the upper collection. It is doable to utilize the equivalent gasket whether you are careful and dont discontinuity it.
5. To remove the backside lot you might hog to turn the crankshaft untill the backside collection comes off all the course fix it aside.
6. Away the inside is exposed. The gear connected to the crankshaft is for the timing and should be left inside however provided needed Testament include to be removed. Their is another portion on the top of the timing gear becareful not to loose it.
7. Set the piston rod connected to the Eccentric person shaft by 2 bolts. Remove the 2 bolts and fix them aside along with the other half of the piston rod parcel. Nowadays remove the piston by pushing it absent of the cylinder. Effect not remove the piston rod from piston thanks to it makes and employment.
8. Reattach engine to body. Put new oil to proper level. Then attach the top cover again. Attach blade and parts. Gastank. Reconnect to carb and try to begin. Might need starting fluid and lots of pulling. Check for exhaust indicating good compression and proper timing. My mower took lots of adjusting to receive it working after i canged the rings. Take you're time with this so you wont have to reopen the mower as many times as i did.
10. If you need to fix the timing thats kind of easy but requires concentration. First note what way the crank shaft rotates when you pull the rope. Then set the piston up as if it is compressing the mixture. Bring it down slightley make sure it will push the crank shaft the correct way turning it the same direction the rope does when you pull it. Next continue slowly bringing piston down untill it is about to reimburse up. Take the timing gear and make sure the exhaust valve opens when the piston starts coming back up. Then carefully check after exhaust valve closes and piston starts going down and make sure the intake valve opens then closes when piston is about to give back up. This time no valves should open untill the piston comes up to compress then goes down powerstroke. When it starts to come up the exhaust valve should open. If all is good the timing is correct. Replace the gasket with new or use the old one not ripped or broken and make sure everything is in place and lines up you might need to turn the crank shaft again to receive the cover to go on. Dont move or adjust the timing gear again. Start tightening the bolts hand tight securing the bottom cover. Replace the piston cover. You can watch piston movement to double check timing if you wish, before replacing cover.
11. Indication how the broken down rings are installed. Carefully remove the antiquated rings and trial for cylinder wall damage pleasant scratches are ok. Start with the bottom ring the lubricationg ring and put the other springy piece on first then carefully work the lubricating ring on the piston. Now carefully apply the other 2 rings to the piston working from bottom to top.9. Now the fun part put the piston back in the cylinder. With a cloth rub clean oil on the entire cylinder wall. I just push them in one at a time. You can get a tool to compress them because they expand. Tighten the rings with fingers and push them into the cylinder one at a time. Next line up the piston rod and reconnect to the crank shaft with the 2 bolts make them tight but dont break the rod.
