MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone.
You are invited to join our public Boat Repair Forum to seek assistance from other members.
You may also visit the Boat Motor Manuals section of our site to obtain a service manual.
I'm with Ed on this one..... this is NOT advisable.Pull spark plugs, if it doesn't have seawater pump on front of crank pulley , hand bar engine over with socket on big bolt in the center of pulley. See if motor turns over now and how much water comes out spark plug holes.
I highly doubt that this 4.3L engine was equipped with an old Bendix style starter motor.If still grinding if motor was hydro-locked(water on top of pistons ) he bendix on starter is bad. When you turn engine over by hand , you are moving flywheel ring gear , which gives you good flywheel ring gear teeth. If same problem , after you check bendix gear on starter. I'd say ring gear on flywheel.
hand bar engine over with socket on big bolt in the center of pulley.
Please stop giving out this bad information unless you also tell them they can break the bolt in the crankshaft and will have to get the motor disassembled for repair.
You use this to turn a crankshaft
Looks like a newbie "expert" has decided to spew un wanted, un needed and inexperienced advice....ugh..
Jack, I see that you now have another target.
Again..... please play nicely!
Jack, go take your meds already,
No kidding!
pre scription ran out a while ago...
Most likely ran out of them several years ago!
With spark plugs out if he breaks bolt then lower unit or motor is locked up.
Again, not advisable.
Use the tool that Ed suggested, or use a strap wrench around the harmonic balancer OD.
Pull the plugs again. If theyre wet is it gas or water? Check oil. If there's water in oil the engine was hydrolocked.Started this morning but there was a grinding or almost a farting sound at startup. Issue got worse and now it just grinds when I turn the key and it fails to startup. I replaced the plugs which were wet but still same issue. I attached a video of failed startup.
personally, 2 only because the customers could not wait 1 never removed the plugs, the other didnt realize the motor had a busted rodI get it special tool to turn engine.
How many broken crankshaft bolts have you seen . just a simple question.
Hey Mikey your so fine hey Mikey.
Tell us all the difference between grade 3 and grade 8 bolts.
Inquiring minds want to know...