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Update. Motor is basically back in the mower. Still have to bolt it down and attach all the externals plus adjust valves. I did a transmission fluid change while it was out as it was a lot easier to access the bleed plugs. I assume the transmission oil was original. The filters were the white...

I have a sbc 350 that i am rebuilding and i have the old crankshaft from it. A bearing spun on it. Is it scrap or worth anything as a core to bring somewhere. Also if anyone wants it they can have it. Located in hudson valley.

Lol 1lb. I bet initially there will be a lot of YouTubers renting just to review the new engine

I’m not saying there is any issue with the spark plug but i have read before about cheap spark plugs having a piece break off into the cylinder when it’s running.

I am going to install the rings with the laser etching facing up which makes the napier ring face downwards so it can properly scrape the cylinder. Everything i read about this style ring says it must be installed facing the bottom of the piston.

The top piston ring looks symmetrical. I dont see any difference between the top and bottom.

So it seems like the instructions are saying for a new ring place the paint mark on the right side of the ring gap which would place the groove facing downwards but for a used ring to place the groove facing the top of the piston?

Yes those are all the second ring. It looks to be a Napier style but i am not up on piston rings. When the groove is facing the bottom of the piston then the pink mark is on the right side of the ring gap and the laser etched 2R is facing the top of the piston

I can get pictures when i get home

I reread the instructions and i noticed under the install second ring portion it has the instructions for “replacing with new one” and “reassembling the ring in use”. If i follow the white mark instructions for replacing with a new one then the notched edge faces the bottom of the piston. If i...

Dang. I didn’t know Glock made factory 15s. Unfortunately I’m not allowed to own those here in NY.

Its called a Napier style piston ring and it looks like its supposed to face downwards. https://www.enginebuildermag.com/2025/09/how-to-identify-piston-rings-and-proper-orientation/

I need some help with the piston ring orientation. I have the factory service manual which I am inclined to believe but I am getting some conflicting information or maybe I am not interpreting the manual correctly. I will paste the instructions from the manual below. All of my confusion comes...

I will definitely update the post once its all back together. Right now i have everything mostly cleaned up motor wise. I am waiting on a few parts from cub cadet. A couple seals for the carburetor, new oil pump plate and some updated metal oil passage tubes between the case halves. It will...

It was a brush research bc30024. 3inch hone 240 grit. I called the company and that’s what they recommended. It fit the bore great. Not too snug but not loose.

Honed both cylinders out. I used a 22.5 degree cut piece of paper to measure the crosshatch angle to get the proper 45 degree. It is close enough. Ball hone worked great. Cylinders look good. Cylinder two has a few lines at the very top of the bore i noticed. No big deal.

Good point about jumping to conclusions. The nest could have definitely come after sitting. Also this engine is known for the rocker arm bolt to come loose causing the rocker to come off the pushrod. The machine was parked because it stopped moving. The only thing wrong was the belt was old and...

I have 2 quarts of the Kawasaki 10w40 so ill use that to begin with then may switch to 15w50 as i think i read kawasaki changed to preferring the 50wt. Because the bore is still round and square i went with a 3in brush research ball hone to remove the mirror finish but not remove cylinder wall...