Compression test has all cylinders at 90psi at hand winding, 150psi at 12V and 170psi at 14V, according to this gauge.
TSRM suggests a reading of 156psi for the 7MGE and 142psi for the 7MGTE, so I'll assume the gauge is a bit optimistic
So dodgy mounting the starter motor there without the bellhousing haha