HELP !!! My Merc 525 EFIs are over revving !!!
#11
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So if the refresh is the cause, should I just reprogram my Pcms to 5400 to get rid of the warning? I don’t know that 525’s should be running over 5200 course I could alway just throttle back.
I just get nervous when something like this changes and the mechanic says he has no idea why. And the last think I want to do is blow my engines because they may have been reinstalled incorrectly, that would suck.
Thanks again for your input Brother…..greatly appreciated 😎
#12
#13
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What was the gps speed before and after?
Are you running the same mph as before or is it faster now? Sounds like the engines might have been tired.
Are you running the same mph as before or is it faster now? Sounds like the engines might have been tired.
#14
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#15
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I might change the props if I can gain some top end out of it so long As I don’t need a football field length to get planning LOL
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hogie roll (09-06-2021)
#17
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IMO YOU need to take the boat for a ride. Maybe the mechanic had it over trimmed?
I wouldn't buy or modify anything till it was confirmed.
I wouldn't buy or modify anything till it was confirmed.
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BIGSLOW (09-07-2021)
#18
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Maybe you’ve shed a bit of weight by replacing the original water logged and heavy wood stringers and transom. That in conjunction with the engines being refreshed may have bought you the extra 200 RPMs. Like others have said, get it out there yourself. Trim it to how you usually do. Note the speed outputs at the higher RPMs and compare to what you previously would achieve.
#19
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as said above you need to run it. right now we still dont know if the transom itself was replaced in which case they may have raised the gimbal height a little and now we find out you have not run it only the mechanic which means he may be trimming different than you do, etc etc. lot of factors in here that can account for 200 rpms.
#20
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as said above you need to run it. right now we still dont know if the transom itself was replaced in which case they may have raised the gimbal height a little and now we find out you have not run it only the mechanic which means he may be trimming different than you do, etc etc. lot of factors in here that can account for 200 rpms.
to your point, it probably wouldn’t take much to create a 200 RPM discrepancy 🙄
I’ll run the boat Tuesday and pop back in with an update. Thank you again, I hope you have an awesome day brother….😎