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    Temperature Question!!

    my M, ercruiser 305 5.0L runs at about 140 degrees while at 2800 RPMs , When i take it up to 3500 RPMs the temp starts to rise to 165-175 degrees ......IS THIS NORMAL OPERATING TEMPERATURE AT FOR THIS ENGINE??? it is carbs and RWC
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    2001 Mercury Optimax 150 Installation Questions

    Guys Im installing an Optimax saltwater series DFI and trying to save money so I have a few questions on problems Im experiencing 1. I have an oil tank and two hoses that go to the tank, is there supposed to be an exterior oil pump that pulls the oil out of the oil tank and into the engine or...
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    2001 Mercury Optimax 150 Trim/Tilt Problem

    Hi, I bought this engine it was on a rack sitting for a couple of years. when I put it on the boat and i hit the trim/tilt button i can hear the motor working but the engine wont move up or down!!! Any ideas guys
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    Mercury Optimax Sterring Installation

    Guys I have a 2001 Mercury Optimax ,Fuel injection that I purchased to put on a 196 wellcraft center counsel. Now the probelm is that i have never done this befor however the engine has already been mounted on the boat but i dont know how to do the steering so here are my questions : Can I do...
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    Mercruiser Identification Help Please!!!!!!!!!!

    Guys I just bought this boat that has this very nice running engine for which i have no information I dont know the year or even if it is a 305 or a 350 . I found a sticker by the back bell housing that says Magnum 350 W/P a barcode and a number 43--100hs . the two dashes are numbers I cant...
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    5.0L OMC TOP Speed at WOT.....

    I have a 1988 21 ft Four winns with a 5.0 and an OMC cobra....I'm only doing 32 mph at 4000 rpms ...I think I should be doing much more than that I think the prop that I have ats a 14 * 19 pitch .... ANY IDEAS WHAT WOULD BE A GOOD PROP TO GET BETTER TOP END SPEED???????
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    OMC cobra Impeller not pulling in water....................

    I have a 1988 OMC cobra with a 5.0 Chevy small block and the impeller is not pulling in any water after replacing housing and impeller .......It worked fine once , then turned it off and it would not work again. .....I did notice that the screws are bent ..could this be a result of air...
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