Quote:
Originally Posted by dieselbenz1
Ok last year when I checked cold compression I had only 260 psi in number 5. Since I am planning a vacation I was thinking of soaking number 5 in MMO. Without removing the valve cover I can find TDC and since the firing order is 1,2,4,5,3 5 should be at the bottom of its stroke at 36 degrees. So then just fill it up through the injector nozzle and wait 2 months!
Better yet would anyone know what position is best to fill all the cylinders? May as well do them all I guess. Should I be putting in known volumes of MMO?
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260psi cold is a GOOD number. Minimum spec is 18bar ( approx 261psi ) hot so it will be within spec when hot. MMO does NOT work unless the coking is very light. BTDT. I took an OM603 cylinder out with stuck rings and soaked it in MMO for a week, nothing. Soaked in solvent, surface coking dissolved, basically nothing. Need to break the ring loose with slight hammering and scraped the coking out by hand. Even this was a lot of hard work. This piston may be the extreme but I do not think MMO works magic as most members believe.