5.7 and Idiot owner

[torombolo]

Morning everyone, I have a question for you since I did something 200% moronic yesterday, my Mercruiser 5.7 (2001) has been sitting for about year and a half,
decided is time to start her up again and get her ready and put in new batt, check my oil, poor some oil from the top, since my outdrive was removed I hooked a water hose with light pressure to the intake. I did not start the engine, but used the starter to rotate it a little at a time to lube everything up ( I know it should have been done by hand) well after a while, I decided to start the engine, it cranked and sounded fine, did not start but my guess is the fuel. Anyhow, after a few attempts a load clank noise came from the engine bay, did not start tried once more and it sounds weird now. I left it alone to avoid further damage from an idiotic over exited owner (ME).

Well my question is: where should I start looking, for damage, I will get a marine mechanic ASAP, since I dont want to damage anything else, but if I wanted to get an idea, what would you recommend me to do for damage assesment?

Thanks in advance and let the flaming begin I know I messed up, I would kick my self if I could. Thanks in advance for any help, suggestions or flaming.

 

[bruceb58]

If you have an alpha drive, or a Bravo drive and you put the water in after the water pump, you probably injested water. Pull the plugs and crank the engine to see if there is any water in the cylinders.

 

[torombolo]

Thank you Bruce, that will be my first tank this weekend

 

[tpenfield]

Have you actually taken a look in the engine bay ??? I would see if you can rotate the engine by hand (with a breaker bar) Bruce may be right, but there are a number of other possibilities.

For future reference, my process for starting a long sitting engine has been to remove the spark plugs, disconnect the main wire to the distributor, squirt a little bit of fogging oil into the cylinders, then crank the engine for a good 15-20 seconds so that I see the oil pressure gauge at the helm rise.

Then put it all back together , hook up the water to the outdrive and start it for real.

 

[thumpar]

My first thought was hydrolock like Bruce is suggesting. Do as he suggested and pull the plugs. Turn it over to get the water out. Then get it running. You will want to run it up to a good high temp. Check your oil also. If it is hydrolocked I would do this ASAP.

 

[torombolo]

tpenfield, I did inspect the engine bay, look for oil, no smoke, no water, nothing out of place, and nothing loose on the engine. What you explained is what I should have done and didn't, it was a mixture between newbie sindrome and over exitment.

Thanks everyone for the suggestions, tomorrow am is crunch time to work on it

 

[torombolo]

Well, did everything suggested, and what should have been the 1st steps, after removing the old spark plugs, did the WD40 into the cylinder sugestion, replace plugs with new ones, and did find out that the loud bang or noise, is a faulty starter, not actually the engine.

 

[poconojoe]

Well, that's great news!