Hi, new to the forum and new to Kirby Tecumseh I have decided to take on the rebuild path to the original Scott Bonnar 45 engine rather than replacing it with something else to keep it all original. The engine seems to be all there and serviceable but details and parts are a bit sketchy, I have found a parts diagram on this forum but it's a Scott Bonnar diagram which seems to have SB part# or Kirby part #. The only parts available online are from the parent company Tecumseh US which seem to have different model engine numbers and part# as well as slightly different parts. As I have never worked on a Kirby Tecumseh before it's all trial and error so guessing between US diagrams with Aussie ones is getting a little frustrating.
So my main question is can anyone confirm replacement part numbers for main serviceable parts as there are many people restoring these engines here with great success but there's no reference to the part numbers they ordered to make life easier and confirm comparability.
I'm assuming U.S Tecumseh H25 is the equivalent Kirby H4-4A engine with a different carburettor, filter, exhaust, correct me if I'm wrong. So my next question is the aftermarket carby kit available online for the Tecumseh H25, it comes with a needle seat, spring and a bowl gasket. The needle in mine doesn't have a spring and the needle doesn't have a raised notch for the spring to slot in, there is also no rubber seat in my carby should it have one? Am I missing parts or is it a different design
Main parts I would like to replace and confirm U.S part numbers are. Piston ring set std Pto oil seal Carby kit set Gasket kit set
