Hydrolocked after winter storage

winnienox · 08-15-2017, 09:48 PM

Thanks for all the good comments. Much appreciated. Here is one picture I got from the marina

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MAXUM · 08-15-2017, 10:05 PM

That doesn't look terribly bad, hard to see if there is any scoring in the cylinder walls but that little bit of rusty stuff doesn't look like a catastrophic problem. I've tore apart running motors that looked far worse.

Poor Richard · 08-16-2017, 06:55 AM

That is not hydrolock. That is piston ring seizure from poor winterization.

If I were in your shoes, I would not let this place perform any more work on my boat. They've done enough.

Soak the cylinders in Marvel and get the engine to roll over by hand. Reinstall the heads, bump the key 10-15 times to get the oil moving, then compression/ leakdown test.

BroadHopper · 08-16-2017, 07:30 AM

My marina, will take care of anything that they screwed up. It's on the winter storage contract. Most marinas have insurance and they cover it. A few folks had cracked blocks etc sue to improper storage. The marina took care of it and replaced the block with a remanufactured block.

As far as hydrolock, usually happens at idle when the water is forced back up into the exhaust due to a wave. I just remove the plugs, churn the motor over a few times to remove the water, spray a generous amount of MMO in the cylinders, churn it over a few more times, and replace the plugs. You may need starter fluid to start the engine as the MMO is heavy.

SAMIAM · 08-18-2017, 10:06 AM

How does the marina explain the problem?
This is clearly their fault and I would have your lawyer send them a friendly request to make it right if they don't step up on their own.

Blue Thunder · 08-18-2017, 01:48 PM

Take a closer look at his picture guys. There is a rust line across both pistons that indicates to me that standing water was in the combustion area for a while. Looks like poor winterization or water got into the engine somehow creating the aforementioned hydrolock.

Charlie T · 08-18-2017, 03:06 PM

I'd like to see the entire photo with all 4 holes completely visible. The current photo with a little more than half of 2 cylinders doesn't tell the whole story.

winnienox · 08-22-2017, 12:43 PM

Quote:

Originally Posted by Charlie T

I'd like to see the entire photo with all 4 holes completely visible. The current photo with a little more than half of 2 cylinders doesn't tell the whole story.

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08-16-2017, 07:30 AM	#4
BroadHopper Senior Member Join Date: Oct 2004 Location: Laconia NH Posts: 5,594 Thanks: 3,235 Thanked 1,111 Times in 798 Posts	Winterization My marina, will take care of anything that they screwed up. It's on the winter storage contract. Most marinas have insurance and they cover it. A few folks had cracked blocks etc sue to improper storage. The marina took care of it and replaced the block with a remanufactured block. As far as hydrolock, usually happens at idle when the water is forced back up into the exhaust due to a wave. I just remove the plugs, churn the motor over a few times to remove the water, spray a generous amount of MMO in the cylinders, churn it over a few more times, and replace the plugs. You may need starter fluid to start the engine as the MMO is heavy. __________________ Someday may never be an actual day.

08-18-2017, 01:48 PM	#6
Blue Thunder Senior Member Join Date: Apr 2004 Location: Eastern MA & Frye Island/Sebago Lake, Maine Posts: 952 Thanks: 253 Thanked 351 Times in 158 Posts	Take a closer look at his picture guys. There is a rust line across both pistons that indicates to me that standing water was in the combustion area for a while. Looks like poor winterization or water got into the engine somehow creating the aforementioned hydrolock. __________________ " Live for today because yesterday is gone and tomorrow may never come"

08-18-2017, 03:06 PM	#7
Charlie T Senior Member Join Date: Apr 2004 Posts: 320 Thanks: 260 Thanked 185 Times in 89 Posts	Strange Cropping I'd like to see the entire photo with all 4 holes completely visible. The current photo with a little more than half of 2 cylinders doesn't tell the whole story.

08-15-2017, 09:48 PM	#1
winnienox Member Join Date: Aug 2017 Posts: 24 Thanks: 8 Thanked 1 Time in 1 Post	Thanks for all the good comments. Much appreciated. Here is one picture I got from the marina Sent from my iPad using Winnipesaukee Forum mobile app

08-15-2017, 10:05 PM	#2
MAXUM Senior Member Join Date: Apr 2004 Location: Kuna ID Posts: 2,755 Thanks: 246 Thanked 1,942 Times in 802 Posts	That doesn't look terribly bad, hard to see if there is any scoring in the cylinder walls but that little bit of rusty stuff doesn't look like a catastrophic problem. I've tore apart running motors that looked far worse.

08-16-2017, 06:55 AM	#3
Poor Richard Senior Member Join Date: Aug 2017 Location: The humbling river Posts: 304 Thanks: 42 Thanked 80 Times in 57 Posts	That is not hydrolock. That is piston ring seizure from poor winterization. If I were in your shoes, I would not let this place perform any more work on my boat. They've done enough. Soak the cylinders in Marvel and get the engine to roll over by hand. Reinstall the heads, bump the key 10-15 times to get the oil moving, then compression/ leakdown test.

08-18-2017, 10:06 AM	#5
SAMIAM Senior Member Join Date: Apr 2004 Location: Moultonborough Posts: 2,912 Thanks: 338 Thanked 1,690 Times in 594 Posts	How does the marina explain the problem? This is clearly their fault and I would have your lawyer send them a friendly request to make it right if they don't step up on their own.