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Merc 850's and 1075's-ARE THEY RELIABLE

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Old 02-11-2007, 10:17 AM
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Default Merc 850's and 1075's-ARE THEY RELIABLE

A buddy of mine is looking at both of these. I couldn't give him any real world info, but told him I would get him some anwsers by posting on here. What is the difference in hours between the 2 before a rebuild is necessary. Is the 1075 as reliable as the 850 with more power or is it not even close from what I have read. Im trying to get him to go with some 700's, 600's or the 525's. He told me the 850's were just as reliable as the other blower motors that Merc builds. What's the concensious. Thanks Jeff
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Old 02-11-2007, 10:58 AM
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Regardless of horsepower, 850, 1050, 1150 ect... if the engine is built and maintained correctly, you will have no issues.
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Old 02-11-2007, 11:17 AM
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Originally Posted by mrhorsepower1 View Post
Regardless of horsepower, 850, 1050, 1150 ect... if the engine is built and maintained correctly, you will have no issues.
I respect your opinion, what is the average hours that can be expected from these two Merc Motors. Will the 600 and 700 be more reliable than the 850's. Thanks Jeff

GUYS GIVE SOME FEEDBACK...
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Old 02-11-2007, 11:28 AM
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A buddy of mine is looking at both of these. I couldn't give him any real world info, but told him I would get him some anwsers by posting on here. What is the difference in hours between the 2 before a rebuild is necessary. Is the 1075 as reliable as the 850 with more power or is it not even close from what I have read. Im trying to get him to go with some 700's, 600's or the 525's. He told me the 850's were just as reliable as the other blower motors that Merc builds. What's the concensious. Thanks Jeff
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Old 02-11-2007, 11:32 AM
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Did you read any of this thread about them?


http://www.offshoreonly.com/forums/s...d.php?t=133541
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Old 02-11-2007, 11:41 AM
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I respect your opinion, what is the average hours that can be expected from these two Merc Motors. Will the 600 and 700 be more reliable than the 850's. Thanks Jeff

GUYS GIVE SOME FEEDBACK...
not sure what Mercury wants for rebuild intervals, but on a 600 HP engine you should be able to go 375-450 hours depending how hard you run them. A 700, 350-400 hours. Again these figures are based of what I have seen with engines I have built. Even at these hours the bearings and such looked liked new. I have had 900 SC engines go the same time (roughly 300 hours +) The lower horsepower engine package will have a longer life before rebuilds. Alot has to do with maintaince of course.This is a good ball park.
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Old 02-11-2007, 11:55 AM
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U have a Buddy!!??
I have many, but none in Michigan Jeff
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Old 02-11-2007, 11:57 AM
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Did you read any of this thread about them?


http://www.offshoreonly.com/forums/s...d.php?t=133541

Thanks for the thread, I was also reading something similiar in this months PB mag. My buddy trying to tell me that 300-400 hours is not uncommon without a rebuild on the 850's. Jeff
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Old 02-11-2007, 12:00 PM
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Originally Posted by mrhorsepower1 View Post
not sure what Mercury wants for rebuild intervals, but on a 600 HP engine you should be able to go 375-450 hours depending how hard you run them. A 700, 350-400 hours. Again these figures are based of what I have seen with engines I have built. Even at these hours the bearings and such looked liked new. I have had 900 SC engines go the same time (roughly 300 hours +) The lower horsepower engine package will have a longer life before rebuilds. Alot has to do with maintaince of course.This is a good ball park.
300 hours on a 900hp is pretty strong, excellent job. Like you said it's how it's maintained and how much you abused it over it's life cycle. Thanks Jeff
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Old 02-11-2007, 12:01 PM
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I have many, but none in Michigan Jeff
If ya send me that C note 4 a drink in Miami, I'll call ya Buddy!!!!
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