11-10-2017, 03:55 PM
Hi, it's helpful to hear what has been said about cylinder compressions as my 1937 Ruby has pressures of between 85 & 95psi and I was wondering if it was a bit on the low side because I recall testing an old 1960's Mini and getting 140psi plus!! If you squirt engine oil into the cylinder before taking the pressure and you get a higher reading it could indicate bore wear. Would that be a fair assumption?