#26
IP: 72.69.36.126
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The Following User Says Thank You to tenders For This Useful Post: | ||
Peter (10-30-2020) |
#27
IP: 131.162.64.3
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sorry...
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#28
IP: 69.172.163.17
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Hi again
Today was sunny and we ended up going on a last minute cruise. I ran the engine for an hour, all running perfectly. My partner allowed me 20 minutes after to play with the engine while the kid slept. So I decided to test some of my assumptions. After running the engine for an hour on our cruise I poured a little antifreeze in cylinder 3 and a little engine oil in cylinder 4 after. The antifreeze did not boil as I had assumed, but it did not mix with the fluid on the surface of the piston. The oil mixed straight in. This test lead me to believe the engine simple doesn't produce the heat to burn the motor oil. So I ran the engine at WOT for 30 seconds which produced the heat to brown the oil on the surface (i think). Of interest, cylinder 3's spark plug and exhaust valve had been 'cleaned' by the antifreeze. cylinder 4's spark plug is still charcoal black. I also tested antifreeze in C4 but dont have a good photo, it didnt mix same as cylinder 3. I now think what I took a picture of in C4 a week ago was a piston cleaned by seafoam, which received the lions share due to gravitiy. Then covered in oil from the compression test. That or it came in with the fuel with c4 getting the lions share due to gravity again. My learning from these experiment is its not as hot inside the cylinder as I had originally assumed. I also set up a antifreeze evaporation test. Yes, Ill still be performing the pressure test sometime in the next month but thought maybe someone finds this as interesting as I do. Last edited by cowlum; 10-31-2020 at 09:38 PM. |
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Surcouf (11-02-2020) |
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