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.
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.
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 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...
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...