Good news!!!

I has raised the compression ratio to 1:18.97 and the Enya 41-4CD ran much better and faster as normal diesel engine will do it.

Maked special tool to keep the cylinder head then fastened to face plate at the lathe and used the scriber to find center of cylinder head before removing of material.

I has removed so much material until the surface are in same height as edge of the valves, measured combustion volume with syringe without pump (the pump jammed) and a plexiglass dish with hole. Measured to 0.17 ml (only in cylinder head), total volume in combustion camber 0.35 ml (before 0.29 ml , total volume in combustion was 0.47 ml).

Tried with 2 gasked, the engine ran a bit better, removed all 2 gasked and tried again, the engine was much easier to start and run much better and fast. Nothing hard sound as knocking or engine are oscillating of overcompressed compresion. Also the engine are normal running with improved compression adapted for the fuel formula from Enya instruction.

Tested both in +20 degree and +8 degree in case i need more or less comression if i am using same fuel formula, nothing problem to run the engine with compression ratio at 1:18.97, idling ran well (before idling was impossible with compression ratio at 1:14). Checked cylinderhead for carbon build up, there are very thinn carbon who are indicated the combustion are good.

Tomorrow i take the movie of the engine running and will be posted in Youtube..

Mr. Ken Enya has much to learn of me (Motorboy), Greg (gkamysz) and Brian (Capin) how to make better 4 stroke diesel engine with adjustable compression.

Here are picture..