Hi guys, Just thought I would ask for clarification and verification on several things regarding cleaning the carbon on the engine.
So Mazda tells people who have issues with starting (in the TSB) to add engine oil, attempt to start and then decarb. The oil is purely to gain compression. Right? And the decarb procedure that follows isn't due to the oil added, but rather to remove carbon build up that prevented the apex seals from sealing in the first place. Right?
The TSB procedure struck me as odd though. Once I'm done decarbing, the rotor housing is super dry, so why would I be warming the engine up dry, and then set the OMP to 60? Shouldn't steps 19-21 be performed before 15-18? Wouldn't doing 15-18 on a dry combustion chamber cause damage?
So Mazda tells people who have issues with starting (in the TSB) to add engine oil, attempt to start and then decarb. The oil is purely to gain compression. Right? And the decarb procedure that follows isn't due to the oil added, but rather to remove carbon build up that prevented the apex seals from sealing in the first place. Right?
The TSB procedure struck me as odd though. Once I'm done decarbing, the rotor housing is super dry, so why would I be warming the engine up dry, and then set the OMP to 60? Shouldn't steps 19-21 be performed before 15-18? Wouldn't doing 15-18 on a dry combustion chamber cause damage?
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13. Allow the engine cleaner to soak for at least 1 hour before starting engine. 14. Connect ESPS connector B1-27. 15. Attempt to start engine without depressing accelerator pedal. 16. Keep engine running between 1500-2000 RPM until engine speed has stabilized. Maintain this engine speed until all smoke has dissipated and / or engine has come to full operating temperature. CAUTION: 17. Rev engine from idle speed up to 6,000 RPM, then release throttle immediately until RPM returns to idle speed. 18. Repeat 20 times with vehicle in Park (AT) or neutral (MT). 19. Connect M-MDS to vehicle and ID vehicle. 20. Using DATALOGGER, select MOP POS# 21. Perform METERING OIL PUMP (MOP) simulation test. |
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