Water in spark plugs

grad98cofc

Hello, 

My engine wouldn't start, making a loud knocking sound...wouldn't turn over.  Pulled the spark plugs, had water in all 8 sockets.  Have taken off the manifolds/risers to replace them, and will probably replace the water shutters too.  Hand cranked the engine a few turns and more water came out of the spark plug sockets.  I'm hoping I didn't bend any connecting rods when I hydrolocked.  Is there an easy way to check???  Have pulled the dipstick, and oil is not milky.  Assuming rods aren't bent, what else do I need to do besides install new Manifolds/Risers and Water shutters?  Should I squirt some mystery oil in the spark plug sockets?  I'm learning as I go....

Thanks,
Mark

GMSLITHO

wd or oil in the cylinders wouldn't hurt we have a old fork lift that we keep in the parking lot to load vans and the lot flooded a few weeks ago the fork lift was under water it took a while to get it going again 

212rowboat

do a compression check both wet and dry.  

yes, oil in cylinders.  isn't going to hurt anything so long as you purge it before rotating it under compression. 

compression should be uniform +/- 10% across whole engine.. should be triple digit psi- anything lower indicates issues.. gaskets usually blow before rods bend, cross fingers.  the knocking sound is concerning. 

grad98cofc

This may be a silly question, but can I test compression with the manifolds/risers off?

grad98cofc

Type your comment and where is the starter solenoid??

grad98cofc

Turns out there wasn’t anything left of the water shutters. So I’m going to reinstall the existing manifolds/risers with new gaskets. 

reneechris14

Yes you can do compression test with out manifolds. The slave solenoid is on the intake just behind the throttle body. 

Liberty44140

Make sure to get any old chunks of shutter out of the exhaust at the drive and make sure to install new shutters, very easy.