7.4 mercury with a Bravo II leg.

External Since: Aug 04, 2004 Posts: 2

I know there are many variables but can anyone give me an idea of how many
hours of service a 7.4 merc can give me before it will need an overhaul. The
boat I am looking at has 800 hours of use but looks well kept. I know it
will need a survey to be sure.

External Since: Jan 07, 2004 Posts: 813

On Sat, 07 Aug 2004 01:58:38 GMT, "Cindy Spottock"
<cindy&gary DeleteThis @telus.net> wrote:
>I know there are many variables but can anyone give me an idea of how many
>hours of service a 7.4 merc can give me before it will need an overhaul. The
>boat I am looking at has 800 hours of use but looks well kept. I know it
>will need a survey to be sure.

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The average is less than 1500 hours before rebuild/replacement and
some do not make it to 1,000 hours. A lot depends on how they've been
run and maintained. At the very least you are likely to need new
exhaust manifolds and risers right away. If it has good compression,
starts easily and is not burning oil, there is probably a decent
amount of life in it.