Ok then... not bad at all! The ultimate conclusion will be when I will open the engine for maintenance/repair. However is strange why compression is so high. I will make also a volumetric measurement to see compression ratio...
Thanks for the info. Certainly the height measured is not 0.00mm or 22.00mm. The pump profile has a small step, so i said 38-40mm depending how you put the ruler and certainly it was an average measurement not a professional one. See also attached photo taken later today from the back side of the block (not the head). Regarding head, which combinations head/block are possible to these engines?Well it looks like you have a mystery engine alright OR your measurement tools or skills need improvement.
I just measured a 1750 and a 2 litre block at 35 mm top of flat part of water pump to head/block joint.
1300 is 0.0 mm and 1600 22mm
That 3 inside the circle indicates the head was cast in a year ending in 3. so 1973, 1983, 1993. The 5 dots (or is it 7) indicated month of May. Of course the head may not be original to the engine.
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