running hot.
When you say engine temps I assume you are talking about "water temp" ??
What about the heat exchanger and coolant ?? Any work done there ??
Also what manifold did they replace ??
Assuming all of your intake (raw water) hoses are good, your water intake is not clogged and your raw water pump is good, (new impeller) you may need to look at your FW pump for better circulation through the heat exchanger, or check the port/hose that feeds the hot side to be sure there is good water movement.
If the riser is too hot to touch this is not good, (assuming they are new and the e.m.'s are new too ??) this would indicate that there is not enough water dumping into it, or another problem.
Sometimes a worn impeller will push enough water to keep the engine from overheating, but not enough to cure your problem. I do not see you mention that it was replaced. When was the last time you did your impeller, or checked your fw pump ??
Somtimes too it's just a matter of how long the hose is.
In other words the cooler water from the heat exchanger is hitting the port side exhaust manifold first, and with more pressure, and thus keeping it cooler. 30 deg is not too bad. If it was 100 then I would say you are likely buring up a cylinder in that bank, from too much fuel or a bad valve, or something.
Do your impeller, and check to be sure the hoses carrying the cool water from exchanger are feeding well to the em, and make sure you have enough water dumping into the riser, and see if that takes care of it, if not I cannot help without looking at it myself.
When you say engine temps I assume you are talking about "water temp" ??
What about the heat exchanger and coolant ?? Any work done there ??
Also what manifold did they replace ??
Assuming all of your intake (raw water) hoses are good, your water intake is not clogged and your raw water pump is good, (new impeller) you may need to look at your FW pump for better circulation through the heat exchanger, or check the port/hose that feeds the hot side to be sure there is good water movement.
If the riser is too hot to touch this is not good, (assuming they are new and the e.m.'s are new too ??) this would indicate that there is not enough water dumping into it, or another problem.
Sometimes a worn impeller will push enough water to keep the engine from overheating, but not enough to cure your problem. I do not see you mention that it was replaced. When was the last time you did your impeller, or checked your fw pump ??
Somtimes too it's just a matter of how long the hose is.
In other words the cooler water from the heat exchanger is hitting the port side exhaust manifold first, and with more pressure, and thus keeping it cooler. 30 deg is not too bad. If it was 100 then I would say you are likely buring up a cylinder in that bank, from too much fuel or a bad valve, or something.
Do your impeller, and check to be sure the hoses carrying the cool water from exchanger are feeding well to the em, and make sure you have enough water dumping into the riser, and see if that takes care of it, if not I cannot help without looking at it myself.
