shuroko65
Forum Newbie
- Joined
- Mar 14, 2023
- Threads
- 1
- Messages
- 5
Hello everyone,
I just found this forum and thought that some of the folks here may be able to help me, or maybe not. Last week I picked up what looked like a brand new Craftsman 51cc backpack blower. I should have known better because I quickly found out that the piston was completely scored up and it had low compression (somewhere between 90-110 psi, which I think is too low to run on something like this).
I ended up pulling it all apart and tried to sand it somewhat and tried to unstick the piston rings which were stuck in the piston. Once I got it all back together I thought I had a small chance because I got it up to about 155 psi. I attempted to start it and got it to run very briefly before the compression dropped down again and it stopped. I think I can get by with just a new piston and probably a set of rings for this thing but I don't want to spend a ton of money on it do to the circumstances.
The problem for me was upon looking it up, I see that MTD only offers the entire short block assembly and I don't think I need the cylinder or crankshaft along with the rest of the parts that come with it. The cylinder is surprisingly in pretty nice shape, the piston took the brunt of it. The emissions tag was from 2022 so whoever bought it probably ran with straight gas. To provide more context here is the parts diagram I was referencing:
The Mtd part number for the short block is 753-11138. I saw this blower made under a couple different names too like Troy-bilt and I think I even saw it on Ebay and Amazon as something else. Just wondering if anyone has any info on getting the parts individually or if I just should move on. Thanks for your time.
I just found this forum and thought that some of the folks here may be able to help me, or maybe not. Last week I picked up what looked like a brand new Craftsman 51cc backpack blower. I should have known better because I quickly found out that the piston was completely scored up and it had low compression (somewhere between 90-110 psi, which I think is too low to run on something like this).
I ended up pulling it all apart and tried to sand it somewhat and tried to unstick the piston rings which were stuck in the piston. Once I got it all back together I thought I had a small chance because I got it up to about 155 psi. I attempted to start it and got it to run very briefly before the compression dropped down again and it stopped. I think I can get by with just a new piston and probably a set of rings for this thing but I don't want to spend a ton of money on it do to the circumstances.
The problem for me was upon looking it up, I see that MTD only offers the entire short block assembly and I don't think I need the cylinder or crankshaft along with the rest of the parts that come with it. The cylinder is surprisingly in pretty nice shape, the piston took the brunt of it. The emissions tag was from 2022 so whoever bought it probably ran with straight gas. To provide more context here is the parts diagram I was referencing:
PartsTree - Home of OEM Parts for Outdoor Power Equipment
Parts lookup and repair parts diagrams for outdoor equipment like Toro mowers, Cub Cadet tractors, Husqvarna chainsaws, Echo trimmers, Briggs engines, etc.
www.partstree.com
The Mtd part number for the short block is 753-11138. I saw this blower made under a couple different names too like Troy-bilt and I think I even saw it on Ebay and Amazon as something else. Just wondering if anyone has any info on getting the parts individually or if I just should move on. Thanks for your time.