Recent content by Colleeng

Very sorry for the confusion, it’s has been very frustrating trying to solve this problem. The boat is a 2007 sea ray 5.7 350 with vdrives. Serial #0W693395. When the starboard engine gets up to 2900 rpm’s the rpm’s shoot up to 6500 to 4500 to 3500 to 2900. Basically all over the place. We...

Hello all. I’m having troubles with me 5.7 350 horse motor at high throttle with low rpm on starboard side.. I have replaced manifolds and riser, raw water pumps, spark plugs, rotor, wires, ignition coil can anyone help me please?

That’s a great answer. Interestingly enoughour speedometer isn’t working either and we cannot get over 18-19 mph .. we have replaced raw water pumps, sensors, manifolds and risers, thermostats , spark plugs . At full throttle can’t get over 3200 x 3800 rpm. Psi’s are 3.4 then the port is 10 ...

Thanks so much. Do you happen to know what PITOT fault means ?

DOES anyone know what PITOT FAULT MEANS??

Hi guys well finally got overheating issue figured out after replacing sensors, thermostats raw water pumps and manifolds and risers thanks for all your suggestions. Now with that said we took boat out yesterday no alarms but can’t get over 17 mph and psi on starboard motor is at 3.4 port is...

Has anyone used Sierra manifolds are they decent or should I stick with merc ?

Yes all merc parts and yes still getting low pressure warning

Both great answers guys thank you. The impellers were broken for sure as we replaced both sides . Not sure about the risers as we just bought this boat a month ago. It sat on lift for three years but only 160 hrs on motors. Very frustrated but will def appreciate any help we can get.

Hello all so happy to have found this group and hope someone here has had these same issues and can help. I have a 2007 searay Sundance 310 v drive twin 5.7 motors. The starboard engine alarm keeps going off saying overheating and won’t get over 1 psi. We have replaced sensors, thermostats...