cease232
Pinnacle OPE Member
- Local time
- 6:53 PM
- User ID
- 1443
- Joined
- Jun 20, 2016
- Messages
- 524
- Reaction score
- 1,730
- Location
- Montana
I was recently on vacation with the family and found this 090 on the local craigslist. Decided to check it out. According to the older fella who owned it for the last 40 or so years he'd never cut wood with it. His uncle owned it originally and gave it to him when he quit logging. He used it as decor and would start it every few years. Didn't have my gauge but compression felt ok. Piston looked good after removing the muffler. Everything was OEM and intact aside from the recoil cover being broken and the muffler exhaust outlet cover missing.
Well I bought it for 499$ and couldn't wait to get home and take it apart. Upon disassembly I discovered a small clip that holds the choke lever missing and the plastic elbow on the bottom of the carb broken. I wanted to keep it all OEM but seems it may not be possible. Found the OEM exhaust cover but not the locking strips that hold it on. Was going to order an aftermarket carb for just the plastic elbow and I thought I could make the plastic clip from some UHMW plastic I have in the shop. It appears to me that this saw has never been taken apart.
Now for the technical part. The Piston was scored on the intake side and the cylinder has minimal transfer but what appears to be a small chip in the plating. I'd like to not replace the cylinder if possible.
Measurements:
Squish .043
Gasket .021
The bottom ring overlaps the chip at BDC by
Approx .02
If I deleted the base basket the bottom of the ring would just barely miss the top of the chip.
I haven't been able to find an OEM piston so was considering using a Hyway brand. These numbers are irrelevant if the aftermarket piston doesn't mic out exactly the same. I'll probably order one just to find out. The other option is a new OEM piston/ cylinder on eBay for $400. Hoping to avoid that if possible. Thoughts, comments, recommendations appreciated. I'll update this as I make progress.
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Well I bought it for 499$ and couldn't wait to get home and take it apart. Upon disassembly I discovered a small clip that holds the choke lever missing and the plastic elbow on the bottom of the carb broken. I wanted to keep it all OEM but seems it may not be possible. Found the OEM exhaust cover but not the locking strips that hold it on. Was going to order an aftermarket carb for just the plastic elbow and I thought I could make the plastic clip from some UHMW plastic I have in the shop. It appears to me that this saw has never been taken apart.
Now for the technical part. The Piston was scored on the intake side and the cylinder has minimal transfer but what appears to be a small chip in the plating. I'd like to not replace the cylinder if possible.
Measurements:
Squish .043
Gasket .021
The bottom ring overlaps the chip at BDC by
Approx .02
If I deleted the base basket the bottom of the ring would just barely miss the top of the chip.
I haven't been able to find an OEM piston so was considering using a Hyway brand. These numbers are irrelevant if the aftermarket piston doesn't mic out exactly the same. I'll probably order one just to find out. The other option is a new OEM piston/ cylinder on eBay for $400. Hoping to avoid that if possible. Thoughts, comments, recommendations appreciated. I'll update this as I make progress.
Sent from my iPhone using Tapatalk