Alphadelta
ArboristSite Operative
Okay! It looks worse than it feels. Older 670 W that I got before it got thrown in the scrap bin. Used to be an old fire department saw. It ran then suddenly just stopped. I pulled the cylinder and piston and was greeted with this on the exhaust side. My first thought was welp, there goes those two, but they don't feel rough. I can catch my finger on one spot on the piston and the cylinder is marked but doesn't feel like anything. The reason I think it stopped was the large metal washer that sits in front of the pump got caught on the sprocket.
I have found one replacement part for this but OEM is not an option. I am still trying to learn the line between "it's toast" and "scotch bright and put it back together".
If it matters, prior to this I sat and ran it for 5ish minutes and it had great compression and purred like a kitten.
As always thanks for any insight you may have.
![IMG_2292.jpeg IMG_2292.jpeg](https://cdn.imagearchive.com/arboristsite/data/attachments/861/861745-290a625307d7a84e64faf492e3ce1ec4.jpg)
![IMG_2298.jpeg IMG_2298.jpeg](https://cdn.imagearchive.com/arboristsite/data/attachments/861/861746-da3844a2ac7c7dc0f84076f5be3eafbf.jpg)
I have found one replacement part for this but OEM is not an option. I am still trying to learn the line between "it's toast" and "scotch bright and put it back together".
If it matters, prior to this I sat and ran it for 5ish minutes and it had great compression and purred like a kitten.
As always thanks for any insight you may have.
![IMG_2292.jpeg IMG_2292.jpeg](https://cdn.imagearchive.com/arboristsite/data/attachments/861/861745-290a625307d7a84e64faf492e3ce1ec4.jpg)
![IMG_2298.jpeg IMG_2298.jpeg](https://cdn.imagearchive.com/arboristsite/data/attachments/861/861746-da3844a2ac7c7dc0f84076f5be3eafbf.jpg)