Broke something yesterday.

[mrvette]

I fail to understand how any engine can possible go into hydraulic lock when running.....600 rpm is 5 sparks/second.....per cylinder....ten trip up and down...

100 or 200 milliseconds depending on you counting cycles or strokes....

going to take a fire hose to lock a cylinder in that time frame....

I have had water in #8 due to overheat/head gasket, takes you pick chicken or egg.....and it was coming out the header gasket.....was a very obvious diagnosis....but engine ran 'ok'....

I vote for a converter bolt/similar in the bellhousing area....a converter bolt only needs back out a few turns and that sob will lock tight on the block...

I would think it should shatter something critical in the process....

and NO I have NOT seen it before...

:lol:

Don't you guys have Bayliners back there?

MY Bayliner was a '85, in '93+ for a few years, Volvo 4 cyl, heat exchanger...

now a buddy's boat here is a 22' Chapparal....blew a 350 chebby outta it last summer, we fought that POS good....water in the damn Donzi exhaust as there wasn't enough freeboard from the sea water, went to the Alpha One under water discharge after that, the Donzi crap was from p/owner and probably why that boat needed a engine...live and learn.....I would never imagine seawater accumulating enough with that exhaust being in such a hurry to get outta there...:crutches:..

73Mike, sorry to hear that man....

 

[010752]

I have had hydraulic lock before that have bent a rod and produced a loud ticking sound, but the engine will run and no big bang. And one was caused by pressure cleaning, really dumb mistake.

Sounds more like a valve let go to produce the bang and followed by the sieze also destroying the plug.

You may want to pull the head on that side to check and if there isn't any wall damage, you can replace just 1 piston/rod etc if that ends up being the problem.

With the oil pressure gauge being pegged, that could mean passage(s) were plugged somewhere past the sending port and the pump running over relief.
Could be the cause of something letting go.

Sorry, but time to get your hands dirty to find out.