Merc 850sci reliability
 

What can people say about these engines out there? everyone had good experience? too much expensive maintenance? how many hours over the life of the engine should you expect on these motors? i know they get refreshed every 100-125 hours for 25k a pop but how many total hours should they expect to last?

i would be curious too. I have a new boat with 1075's being built, any commnet on the 1075's as well?

Well, I think if you can afford the motors the maintenance isnt going to phase you. I do, however, dislike the idea of having any downtime for motor refreshing....especailly every 50hrs or so. The more I think about big cube N/A motors, the more I like them. Cobra or Zul 750 N/A's seem like a great compromise in a 38' ish boat. I dont know the maintenance schedule on them so I might be talking from my azz.

come on, no one out there own's a pair of 850's and can talk about their experience??? i hear this yr merc is guaranteeing racers who bought a new set to start the 07 season will make it through the whole season with no additional costs to the racers. Merc picks up any repairs for no charge. Thats saying something i would think

that could be a big chunk of change every year. I have heard all sorts of stories on this and would be interested in hearing the real deal also

I have a freind that has a pair approx 200 hours still strong and no refresh. Its all about the preventive maintinence.:D

Being the first year for the Supercat "850", there have not been any issues with reliability! the Mercury truck racing staff are at all OSS races! In the first 3 races there has not been one engine or drive failure. in Biloxi, WHM lost a prop blade and DNF. Mercury is standing behind their product. Besides all OSS races, there is also Poker runs that they are attending.

Are you talking race boats or pleasure?????

The question was ANY expierence with the Mercury 850!
Mine is from the OSS Race curcuit.

wow, that sounds pretty strong. Any others out there??

Thanks PeteB for your response

yeap about 15 to 20 hours, I have had good luck na 650hp since 2000. going to check cam wear this winter maybe change springs ran it for 7 yrs before doing the bottom over 2000. don't care for merc stuff over priced you can get a jc perforamce 800 or 850 598 that will out last a merc I bet or dee tyler crocket on his efi motors. artie if in mass theres coughlin motors in norwood or jim reid in whitman mass .:D

100 hours @ $25k. wow

That is a sick amount for maintenance. Way out of my league!

Guy in Pompano has a 42X/ 850's with over 200 hours on it and no big trouble to report.