wiring diagram is in the factory service manual for the motor/drive
purple wire (ignition) is daisy chained to all the gauges
black wire (ground) is daisy chained to all the gauges
dark blue wire (lights) is daisy chained to all the gauge lights
grey wire (tach) goes to the tachometer signal...
yes
to acetone check, you fill up the elbow with acetone and see if it leaks thru.
you may have to build a block-off plate and use gaskets
personally, i would just buy a new elbow
welcome aboard.
what did you do to "renew" your motor?
your motor getting that warm is an issue it should never ever ever get over 160-170F (71-76C)
going to 100C / 212 F means you have a cooling water flow issue (you dont have enough flow)
with a carburetor, the only "sensor" in the...
you pull the front pulley and use a crankshaft socket, or you pull the starter and pry on the flywheel teeth
or better yet, pull the drive, pull the motor (45 minute job), put the motor on an engine stand
acetone check your used manifold and riser however if the block was cracked on the free boat, so were the manifolds. the reason blocks crack is the exact same reason manifolds crack : lack of winterization
pressure check the new to you motor should hold 15-20 psi all day long
since you put...
What is your compression numbers?
What is your fuel preasure?
You are posting in the OMC forum about a 350 mag (mercruiser) so what motor do you have?
List the serial number
Seafoam is snake oil
Pull the injectors and send them in to be cleaned
yes, get both a base to manifold gasket and a top gasket
pull the carb off, put it on the bench (in a catch basin). pull it apart and remove the fish and other flotsam
they are just vortec small block cores. same as any salvage yard has in a truck
as core motors, $100-$200 depending on location, as scrap value, $50-$100
as a good long-block about $500
check to see what LKQ in your area gets for long blocks
the value is in the marine bolt-on bits.
@M-Ski
I agree with Eric. being a 2004 motor seriously doubt you need an overhaul unless the boat was sunk at one time and left under water for a long time.
please answer the questions in post #10