1977 Mercrusier 305 Chirping noise

[hairchef]

Have a chirping noise at 1000 - 1100 rpm. I have replaced alternator and both belts and run it without power steering belt on and still makes noise. I guess I have to run it for short time with no belts and look at water pump next

 

[Scott06]

Have a chirping noise at 1000 - 1100 rpm. I have replaced alternator and both belts and run it without power steering belt on and still makes noise. I guess I have to run it for short time with no belts and look at water pump next

yes if it is coming from the rear of engine may want to pull the drive and do the same .

The v belt pulleys can get rust on them as well. Look at those while you are inspecting the circ pump

 

[hairchef]

I cleaned all pulleys and I think circ pump is next. Thanks