Often I've read on Google to consult my manual for the compression figures for my engine but just can't them listed.
I have a 1979 Leyland Sherpa 230 with a Morris "O - Series" engine 1.7l.
I believe I should have a compression ratio of 8-1 but can't be sure. The compression tester came out at 150 psi ( + or- 2psi ) which I thought sounded really high. I've read that carbon build up can cause higher compression as a result of a sealing effect but the cylinder was removed and cleaned up a short while ago.
What would your guess be for a 40 year old 70,000 mile Leyland van - be? And do you know of any other reasons (if indeed the figures are too high) which could create a higher reading. (Tester was checked against another)
Chapter 2 in my book is for the cooling system. I'm in the Engines section, under specifications and then "general" and still there is no mention of compression pressure.
Has anyone else out there not managed to find the expected compression in their manual?