I finally took it apart after trying to locate information. It is in fact a Tecumseh but I can't ID the engine with the #'s I have. T633-03C and 4828503.
I have it disassembled except for splitting the case and removing the crank.
Cylinder wall is not scored, piston and rings look fine, crank and rod look OK (A little wear and side play). All electrical looks OK (I'll re-set the points and plug). Pull cord and starter mechanism work fine. The engine wouldn't turn over at first but PB Blaster in the cylinder did the trick.
Haven't gone into the carb yet but between the carb and intake side of cylinder is a plate with 4 reed valves. Two of the reeds are either missing or rusted. SEE PICTURES
I have searched the internet and can't find replacement reed plates . The # on my plate is 1026-03 on the carb side horizontal cross and on the vertical cross is 5 and a diamond with the letter S in the middle.
Anyone have any idea where I can get the replacement plate?
Now if all else fails I will remove the exixting reeds and cut new reeds from a feeler gauge blade the right thickness and rivet them back in. That is tedious work for these old eyes though.
Marvin
Carb Side
Engine Side