Tecumseh Motor Prisma 37

The engine on the MEPPY Talpa 370 engine is the above-mentioned engine. The part was awarded almost a year in relation and is now defective. At normal oil level and horizontal parking position, the oil drips from the exhaust. The engine does not start any more and if it ignites briefly (approx. 2 sec) then you can see the exhaust gas recoil through the carburettor when the air filter is open. The wedge in the flywheel is ok. Ignition spark also comes (tested with ignition module tester). Carburettor is clean. before I pull the engine, a question about compatibility. If the lawn mower engine Tecumseh Vantage 35 VAN 35 E36102B S7289A has identical dimensions from the housing crankshaft diameter and length from the stump, then I would install it. I have not yet bought the engine which has an acquaintance from the acquaintance.