I'M THE owner of a 1991 Toyota Corolla Seca SX Liftback with the 100kW 4A-GE engine. I have had the car since new, and have done my own mechanical work and maintenance using Toyota's specifications and genuine Toyota components. I have had no trouble with the car, but I have three questions. Firstly, are there any recognised problems with this engine, as it seems to be a brilliant basic design? Secondly, in case of cam belt failure, will there be valve/piston interference? Thirdly, I recall some weeks ago you mentioned that the five-speed transaxles are prone to fifth-gear problems.
FIRSTLY, you have a gem. The 4A-GE engine is regarded as a classic and much sought-after to fit in Mini Clubmans. There are no major problems to be concerned about with the engine. Secondly, the engine is a free-spinning design, the piston tops are relieved to provide clearance to the valve train so there shouldn't be a problem if you break a cam belt. That said, anything is possible if you break a belt at high engine speed, when you might stretch a valve stem enough to make contact. High-mileage cars can have a problem with fifth gear, but don't panic, it's not something to be too concerned about.
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