jekjr
Lawn Addict
- Joined
- Jan 3, 2013
- Threads
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- 1,969
Back in the late 1970's my grandfather bought a new push mower to trim with. He had cataracts and did not see that great but insisted on working outside. The first day he got the mower he hit a piece of steel rod that was driven in the ground to mark something. He bent the crankshaft so bad that it locked the motor up. He put it in the shed and bought another mower and basically forgot about it. A year or so I got married and needed a mower to cut my yard. I was telling him that he reminded me of that mower and told me that I could have it and maybe find a motor for it.
I took it home thinking that I might could break it apart and possibly find another mower that was junked and possibly get a crankshaft and put in it. I pulled the blade off of it and to get the motor off of that particular mower I had to get the blade adapter off of it. I had nothing to heat it and no puller or press to remove it.
I knew an old guy that had a small shop just up the road that was very intelligent and could fix anything. I put the mower on the truck and carried it up to him to get the adapter off. When I got there and explained what I needed he asked me, "Why don't you just straighten the crankshaft?"
I had never heard of doing that. I asked him how it could be done. He got a 4# hammer and an axe and turned the mower up on it's side. He placed the back of the axe head against the crankshaft up against the bottom of the mower. It was on the opposite side of the bend. Instructing me on how to hold it he then took the hammer and started hitting the shaft close to the end of the shaft. After a few licks the shaft turned. Then he would turn the bent end toward the end he would hit it. He kept doing this till it was hard to see exactly where the bend was with the naked eye. Then he took a piece of chalk and held it against the shaft and turned it slowly till the chalk rubbed on one side. Then he turned the place with the chalk up and instructed me to place the axe back in place and went back to hitting the shaft. He hit it a couple of licks and then checked it with the chalk again. He did this till there was no wobble. We then put the blade back on the mower and put gas in it, checked the oil, and started it up.
I then used that mower for years and never had a problem with it.
I took it home thinking that I might could break it apart and possibly find another mower that was junked and possibly get a crankshaft and put in it. I pulled the blade off of it and to get the motor off of that particular mower I had to get the blade adapter off of it. I had nothing to heat it and no puller or press to remove it.
I knew an old guy that had a small shop just up the road that was very intelligent and could fix anything. I put the mower on the truck and carried it up to him to get the adapter off. When I got there and explained what I needed he asked me, "Why don't you just straighten the crankshaft?"
I had never heard of doing that. I asked him how it could be done. He got a 4# hammer and an axe and turned the mower up on it's side. He placed the back of the axe head against the crankshaft up against the bottom of the mower. It was on the opposite side of the bend. Instructing me on how to hold it he then took the hammer and started hitting the shaft close to the end of the shaft. After a few licks the shaft turned. Then he would turn the bent end toward the end he would hit it. He kept doing this till it was hard to see exactly where the bend was with the naked eye. Then he took a piece of chalk and held it against the shaft and turned it slowly till the chalk rubbed on one side. Then he turned the place with the chalk up and instructed me to place the axe back in place and went back to hitting the shaft. He hit it a couple of licks and then checked it with the chalk again. He did this till there was no wobble. We then put the blade back on the mower and put gas in it, checked the oil, and started it up.
I then used that mower for years and never had a problem with it.