5.7

Hi All, I took my 2002 26' Sundancer with 5.7EFI out a couple of times this Spring and it ran great. I had a service done (Impeller, Oil Change, Fuel Filter, Spark Plugs) went to take boat out I went to accelerate, and it began running really rough and it would not go above 2K RPM / 10 MPH...

For the love of pete I can't find out what the right part numbers are for the 2 v belts on my 5.7 omc engine. Im replacing the alternator and the water pump. Can anyone point me in the right direction? I ve been on several websites and there are so many part numbers to different ones I cant...

Hey CSR! I'm looking in to getting a classic Sea ray 268 sundancer but I'm wondering what fuel economy is with the 5.7 vs the 7.4 and top speeds. How were these boats built and how do they handle? Im just Wanting to know everything I should before going to look at them. Thanks !!

My 1995 230 OV 5.7 has a problem that has gradually worsened over two years. When I quickly throttle up the engine backfires, now to the point it will not get on plane. With a very s-l-o-w throttle application it will ultimately plane, but it takes a deft throttle hand. Maintenance items like...

Hello All, I'm new to CSR. I just recently acquired a project SeaRay Cuddy Cabin. It needs a bit of work. I was wondering, Are there any owners out there who have the same boat as me that can upload a picture of the complete engine compartment? I've been searching to see if any have posted any...

Hello and greetings from Osaka. I tried to submit this thread a couple of days ago but it looks like something went wrong as it never appeared. I recently purchased a 1989 Sea Ray Salon Cruiser 31 that has a few problems (it was cheap and I knew the problems ahead of time so no worries!)...

I just got a 94 searay bowrider 5.7 alpha one. I just replaces bellows, thermostat, and water pump. Just took it out and w.o.t. from a stop the motor bogs down for about 3 seconds around 2k rpm. Any thoughts? This is not a constant problem. Fuel filter? Wires? Plugs? Also, unrelated, steering...

I just got a 94 searay bowrider 5.7 alpha one. I just replaces bellows, thermostat, and water pump. Just took it out and w.o.t. from a stop the motor bogs down for about 3 seconds around 2k rpm. Any thoughts? This is not a constant problem. Fuel filter? Wires? Plugs? Also, unrelated, steering...

This is my first post on here and everyone seems helpful. I hope someone has a good diagram of the wiring on the 5.7 mercruiser inboard I am really just trying to get running after an engine swap. Its in a 1985 21' with an OMC Outdrive. Starter turns it but I cant seem to get it to fire...

I need serious help, from somebody who knows Merc 260/5.7 carb engines inside and out, or at least has knowledge and experience working with them. Knowledge of these as twins, in the Amberjack configuration would be even better. I've got a 87 270 Sportfish (Amberjack flybridge) with twin...

One side of my exhaust gets considerably hotter than the other and seems to have less water coming out from that sides discharge. Any ideas? Please help.

I have a 1987 260hp 350cu in my 87' 250 Sundancer. Just bought it this past winter. I have had a problem with the alternator belt squealing. I have to tighten the belt almost every time out. I am curious if anyone has changed the pulleys and installed a serpentine belt system. I hope to hear...